CN115156307B - Data processing method and system suitable for seamless steel tube - Google Patents
Data processing method and system suitable for seamless steel tube Download PDFInfo
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- CN115156307B CN115156307B CN202210905048.1A CN202210905048A CN115156307B CN 115156307 B CN115156307 B CN 115156307B CN 202210905048 A CN202210905048 A CN 202210905048A CN 115156307 B CN115156307 B CN 115156307B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 188
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/78—Control of tube rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/46—Roll speed or drive motor control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
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Abstract
The invention provides a data processing method and a data processing system suitable for a seamless steel tube, wherein a first roller pressure value of a first roller and a second roller pressure value of a second roller are obtained, and if the average roller pressure value is larger than a preset roller pressure value, first pressure early warning information is generated; acquiring a first guide plate pressure value of the first guide plate and a second guide plate pressure value of the second guide plate, and generating second pressure early warning information if the average guide plate pressure value is larger than a preset guide plate pressure value; when judging to generate the first pressure early warning information and/or the second pressure early warning information, comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient; acquiring a first pressure, reducing the first pressure according to the fusion pressure change coefficient to obtain a second pressure, and adjusting the first control power to obtain a second control power; and reducing the first rotation speed according to the fusion pressure change coefficient to obtain a second rotation speed, and adjusting the first rolling power to generate a second rolling power.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a data processing method and system suitable for a seamless steel tube.
Background
The seamless steel pipe is formed by perforating a whole round steel, and the steel pipe without a weld joint on the surface is called a seamless steel pipe. Generally, seamless steel pipes can be classified into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, and cold-drawn seamless steel pipes according to the production methods thereof. Among them, piercing is the most important forming step in the production of a hot rolled seamless steel pipe, and the task of the piercing is to pierce a solid tube blank into a hollow blank (blank tube).
In the prior art, a solid tube blank is punched by a punching machine, the tube blank is rolled by a roller of the punching machine in the punching process, the tube blank is shaped by a guide plate, a tube blank is drilled by a plug, in the process, a certain pressure can be increased due to the fact that the roller and the guide plate have force on the tube blank simultaneously, the tube blank is internally pressurized when the plug drills the tube blank, at the moment, the corresponding tube blank can expand to form corresponding expansion pressure, and when the tube blank is expanded to a certain extent, the roller, the guide plate and the plug still work according to rated power, so that cracking, uneven wall thickness and the like of the tube blank can occur in the drilling process easily.
Therefore, there is a need for a solution that can adjust the working power of the piercing-plug trolley and the roller according to the change of the expansion pressure of the pipe blank during piercing in the process of piercing the seamless steel pipe, and improve the yield of the manufactured seamless steel pipe.
Disclosure of Invention
The embodiment of the invention provides a data processing method and a data processing system suitable for a seamless steel pipe, which can adjust the working power of a plug trolley and a roller during perforation according to the change of the expansion pressure of a pipe blank during perforation in the process of perforating the pipe blank, reduce the defective rate in the process of generating the seamless steel pipe and improve the yield of manufacturing the seamless steel pipe.
In a first aspect of the embodiment of the present invention, a data processing method applicable to a seamless steel pipe is provided, including:
continuously acquiring a first roller pressure value of a first roller and a second roller pressure value of a second roller, and generating first pressure early warning information if the roller average pressure value calculated according to the first roller pressure value and the second roller pressure value is larger than a preset roller pressure value;
Continuously acquiring a first guide plate pressure value of a first guide plate and a second guide plate pressure value of a second guide plate, and generating second pressure early warning information if the average guide plate pressure value calculated according to the first guide plate pressure value and the second guide plate pressure value is larger than a preset guide plate pressure value;
When judging to generate first pressure early warning information and/or second pressure early warning information, calculating a first roller pressure value, a second roller pressure value, a first guide plate pressure value and a second guide plate pressure value to obtain a fusion pressure coefficient of the first tube blank when the plug is continuously pushed, and comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
Acquiring a first pressure of a plug trolley to a plug at the current moment, performing reduced offset calculation on the first pressure according to the fusion pressure change coefficient to obtain a second pressure, and adjusting a first control power of the plug trolley at the current moment according to the first pressure and the second pressure to obtain a second control power;
and performing reduced offset calculation on the first rotating speed of the first roller and the second roller at the current moment according to the fusion pressure change coefficient to obtain a second rotating speed, calculating the first rotating speed and the second rotating speed to obtain a rolling power adjustment value, and adjusting the first rolling power at the current moment according to the rolling power adjustment value to generate a second rolling power.
In one possible implementation manner of the first aspect, optionally,
Respectively obtaining a first roller pressure value of a first roller and a second roller pressure value of a second roller through a roller pressure sensor, and adding the first roller pressure value and the second roller pressure value to obtain a roller pressure total value;
Dividing the total pressure value of the rollers by the number of the rollers to obtain an average pressure value of the rollers;
The roll average pressure value is calculated by the following formula,
Wherein,Is the average pressure value of the roller,/>For the first roll pressure value,/>For the second roll pressure value, roller QTY is the number of rolls, roP gam is the roll pressure gradient parameter;
and comparing the average pressure value of the roller with a preset roller pressure value, and generating first pressure early warning information if the average pressure value of the roller is larger than the preset roller pressure value.
In one possible implementation manner of the first aspect, optionally,
The method comprises the steps of respectively obtaining a first guide plate pressure value of a first guide plate and a second guide plate pressure value of a second guide plate through a guide plate sensor, and adding the first guide plate pressure value and the second guide plate pressure to obtain a guide plate pressure total value;
dividing the total guide plate pressure value by the number of the guide plates to obtain an average guide plate pressure value;
the average pressure value of the guide plate is calculated by the following formula,
Wherein,For average pressure value of guide plate,/>For the first guide pressure value,/>For the second guide pressure value, guides QTY is the guide number, guP gam is the guide pressure gradient parameter;
And comparing the average pressure value of the guide plate with a preset guide plate pressure value, and generating second pressure early warning information if the average pressure value of the guide plate is larger than the preset guide plate pressure value.
In one possible implementation manner of the first aspect, optionally,
When judging to generate first pressure early warning information and/or second pressure early warning information, processing and adding the first roller pressure value, the second roller pressure value, the first guide plate pressure value and the second guide plate pressure value, and obtaining a fusion pressure coefficient after summing;
Dividing the fusion pressure coefficient by a preset fusion pressure coefficient to generate a fusion pressure change coefficient; the fusion pressure variation coefficient is calculated by the following formula,
Wherein Fusionpa oft is the fusion pressure change coefficient,For the first roll pressure value,/>For the second roll pressure value, RO ifc is the roll pressure influence factor,/>For the first guide pressure value,/>Gu ifc is the guide plate pressure influence factor, fusionpa prec is the preset fusion pressure coefficient, which is the second guide plate pressure value.
In one possible implementation manner of the first aspect, optionally,
Acquiring a first pressure of a plug trolley to a plug at the current moment, and calculating the first pressure and the fusion pressure change coefficient to obtain a second pressure;
Comparing the first pressure with the second pressure to obtain a control power adjustment value;
Acquiring a first control power of the plug trolley at the current moment, and calculating the first control power and the power adjustment value to obtain a second control power;
The second control power is calculated by the following formula,
Wherein pa 2 is the second pressure, pa 1 is the first pressure, fusionpa oft is the fusion pressure variation coefficient, pre ifc is the pressure influence factor,For the second control power,/>For the first control power,/>To control the power impact factor.
In one possible implementation manner of the first aspect, optionally,
Acquiring a first rotating speed of the first roller and a second roller at the current moment through a roller rotating speed sensor;
Calculating the first rotation speed and the fusion pressure change coefficient to obtain a second rotation speed;
Comparing the first rotation speed with the second rotation speed to obtain a rolling power adjustment value;
Obtaining first rolling power of a first roller and a second roller at the current moment, and calculating the first rolling power and the rolling power adjustment value to obtain second rolling power;
the second rolling power is calculated by the following equation,
Wherein,For the second rotation speed,/>For the first rotational speed, fusionpa oft is the fusion pressure change coefficient, tu ifc is the rotational speed influence factor,/>For the second rolling power,/>For the first rolling power,Is a rolling power influence factor.
In one possible implementation manner of the first aspect, optionally,
Acquiring a roller pressure value, a roller pressure threshold interval and a guide plate pressure threshold interval preset by a guide plate pressure value, and acquiring a fusion pressure adjustment interval according to the roller pressure threshold interval and the guide plate pressure threshold interval;
subtracting the fusion pressure coefficient from a preset fusion pressure coefficient to obtain a fusion pressure difference value;
Comparing the fusion pressure difference value with the fusion pressure adjustment interval, and adjusting any one of the first pressure or the first rotation speed according to the generated fusion pressure change coefficient if the fusion pressure difference value is in the fusion pressure adjustment interval;
And if the fusion pressure difference value exceeds the fusion pressure adjustment interval, uniformly adjusting the first pressure and the first rotation speed according to the generated fusion pressure change coefficient.
In one possible implementation manner of the first aspect, optionally,
If the third control power input by the staff is judged to be received, correcting the control power influence factor according to the difference value of the third control power and the second control power to obtain a corrected control power influence factor;
If the third rolling power input by the staff is judged to be received, correcting the rolling power influence factor according to the difference value of the third rolling power and the second rolling power to obtain a corrected rolling power influence factor;
the corrected control power weight value and the corrected rolling power weight value are calculated by the following formulas,
Wherein,For the third control power,/>For the second control power,/>For the corrected control power impact factor,/>For controlling the power factor, U 1 is the control power factor correction value,For the third rolling power,/>For the second rolling power,/>For the corrected rolling power influence factor,/>For the rolling power influence factor, U 2 is the rolling power influence factor correction value.
In a second aspect of the embodiments of the present invention, there is provided a data processing system adapted for use with a seamless steel pipe, comprising:
The first early warning module is used for continuously acquiring a first roller pressure value of a first roller and a second roller pressure value of a second roller, and generating first pressure early warning information if the roller average pressure value calculated according to the first roller pressure value and the second roller pressure value is larger than a preset roller pressure value;
The second early warning module is used for continuously acquiring a first guide plate pressure value of the first guide plate and a second guide plate pressure value of the second guide plate, and generating second pressure early warning information if the guide plate average pressure value calculated according to the first guide plate pressure value and the second guide plate pressure value is larger than a preset guide plate pressure value;
The fusion module is used for calculating a first roller pressure value, a second roller pressure value, a first guide plate pressure value and a second guide plate pressure value when judging and generating first pressure early warning information and/or second pressure early warning information, so as to obtain a fusion pressure coefficient of the first tube blank when the plug is continuously pushed, and comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
the pressure reducing module is used for obtaining the first pressure of the plug trolley to the plug at the current moment, reducing the offset calculation of the pressure of the first pressure according to the fusion pressure change coefficient to obtain the second pressure, and adjusting the first control power of the plug trolley at the current moment according to the first pressure and the second pressure to obtain the second control power;
and the speed reducing module is used for reducing the deviation calculation of the first rotating speed of the first roller and the second roller at the current moment according to the fusion pressure change coefficient to obtain a second rotating speed, calculating the first rotating speed and the second rotating speed to obtain a rolling power adjustment value, and adjusting the first rolling power at the current moment according to the rolling power adjustment value to generate a second rolling power.
In a third aspect of embodiments of the present invention, there is provided a storage medium having stored therein a computer program for implementing the method of the first aspect and the various possible designs of the first aspect when the computer program is executed by a processor.
According to the technical scheme provided by the invention, the processor of the perforating machine is used for calculating the roller pressure values obtained by the two rollers through the sensors, so that corresponding first pressure early warning information is generated. And calculating the guide plate pressure values obtained by the two guide plates through the sensors, and generating corresponding second pressure early warning information. And calculating the pressure values of the roller and the guide plate according to the generated first pressure early warning information and/or second pressure early warning information to obtain a fusion pressure coefficient, and obtaining a corresponding fusion pressure change coefficient. And regulating down the control power of the plug trolley of the perforating machine according to the fusion pressure change coefficient, so that the pressure of the plug trolley during perforating the pipe blank is correspondingly reduced. Or the rolling power of the roller is regulated down according to the fusion pressure change coefficient, so that the rotating speed of the roller for rolling the tube blank is correspondingly reduced. The conditions of tube blank breakage, uneven wall thickness, tube blank deformation and the like caused by excessive expansion pressure of the tube blank during perforation are avoided, the defective rate in the process of producing the seamless steel tube is reduced, and the yield of producing the seamless steel tube is improved.
According to the technical scheme provided by the invention, the roller pressure values of the first roller and the second roller are summed and averaged to obtain the roller average pressure value, and the roller average pressure value is compared with the preset roller pressure value to generate corresponding first pressure early warning information. And summing and averaging the guide plate pressure values of the first guide plate and the second guide plate to obtain a guide plate average pressure value, and comparing the guide plate average pressure value with a preset guide plate pressure value to generate corresponding second pressure early warning information. And according to the first pressure early warning information and/or the second pressure early warning information, summing the roller pressure values corresponding to the first roller and the second roller and the guide plate pressure values corresponding to the first guide plate and the second guide plate to obtain a fusion pressure coefficient, and comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient. The processor reduces the first pressure of the plug trolley obtained through the sensor according to the fusion pressure change coefficient to obtain the second pressure, and calculates the first pressure and the second pressure to obtain the control power adjustment value. And acquiring the first control power of the plug trolley by using a sensor, and regulating the first control power by using a control power regulating value to obtain the second control power. The processor reduces the first rotating speed of the roller obtained by the sensor according to the fusion pressure change coefficient to obtain a second rotating speed, and calculates the first rotating speed and the second rotating speed to obtain a rolling power adjustment value. And acquiring the first rolling power of the roller by using a sensor, and regulating the first rolling power by using a rolling power regulating value to obtain the second rolling power. The second control power and the second rolling power are obtained, so that when the perforating machine perforates the pipe blank, the pipe blank can be accurately and stably perforated to the greatest extent, the defective rate caused by perforation failure is reduced, and the yield of the finished seamless steel pipe is guaranteed.
According to the technical scheme provided by the invention, the processor sends the calculated second control power and the second rolling power to the staff for confirmation, and after the staff receives the confirmation information, the staff finds that the control power and the rolling power are required to be continuously reduced on the basis of the calculation result of the processor. Therefore, the conditions of tube blank breakage, uneven wall thickness, tube blank deformation and the like caused by excessive expansion pressure during tube blank perforation are avoided. The operator will therefore input the third control power and the third rolling power manually at his own initiative. And correcting and adjusting the control power influence factor and the rolling power influence factor to obtain the control power influence factor and the rolling power influence factor which are more in line with the actual piercing and rolling work of the piercing mill on the pipe blank. The formula for calculating the second control power and the second rolling power provided by the invention is subjected to continuous training and precision requirements, so that the calculation precision is improved, and the use requirement of the current scene is met. The third control power and the third rolling power which are manually input by a worker are corrected and adjusted to obtain new control power influence factors and rolling power influence factors, so that the second control power and the second rolling power are adjusted, the defective rate in the seamless steel tube generation process is reduced, and the yield of the seamless steel tube is improved.
Drawings
FIG. 1 is a flow chart of a first embodiment of a data processing method suitable for use with seamless steel pipes;
FIG. 2 is a flow chart of a second embodiment of a data processing method suitable for use with seamless steel pipes;
Fig. 3 is a schematic structural diagram of a data processing system suitable for use with seamless steel pipes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present invention, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
It should be understood that in the present invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in the present invention, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C are comprised, "comprising A, B or C" means that one of A, B, C is comprised, "comprising A, B and/or C" means that any 1 or any 2 or 3 of A, B, C are comprised.
It should be understood that in the present invention, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value.
As used herein, the term "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context.
The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.
The invention provides a data processing method suitable for a seamless steel tube, which is shown in fig. 1 and specifically comprises the following steps:
step S1, a data processing method suitable for a seamless steel tube is characterized by comprising the following steps:
continuously acquiring a first roller pressure value of a first roller and a second roller pressure value of a second roller, and generating first pressure early warning information if the roller average pressure value calculated according to the first roller pressure value and the second roller pressure value is larger than a preset roller pressure value;
The invention provides a technical scheme, wherein the perforation is the most important forming process in the production of a hot rolled seamless steel tube, and the task of the perforation is to perforate a solid tube blank into a hollow blank (blank tube). Machines for piercing tube blanks are also of different types due to their variety of construction, with two-roll oblique-rolling piercing machines being used more widely. The two-roller oblique rolling perforating machine is generally placed left and right by two barrel-shaped rollers, a guide plate is placed up and down, and a top is pulled by a top trolley connected with a top rod. The roller is a main transmission external deformation tool and is mainly responsible for drawing in a tube blank and perforating the tube blank under the rolling of a certain rotating speed, and simultaneously, rolling the tube blank with reduced wall, flat surface, uniform wall thickness, rounding and the like.
It is known that a two-roll oblique-rolling piercing machine body is provided with two rolls, which are designated as a first roll and a second roll. Continuously acquiring a pressure value of a first roller and a pressure value of a second roller, naming the acquired pressure value of the first roller as a first roller pressure value, and naming the acquired pressure value of the second roller as a second roller pressure value. And calculating the detected first roller pressure value and the second roller pressure value to obtain a roller average pressure value, comparing the roller average pressure value with a preset roller pressure value, and correspondingly generating first pressure early warning information if the roller average pressure value is larger than the preset roller pressure value. The preset roller pressure value is preset after the processor counts according to the historical roller average pressure values of the first roller and the second roller in the puncher. The effect of comparing the average pressure value of the roller with the preset roller pressure value is that the corresponding fusion pressure coefficient is conveniently calculated according to the corresponding generated first pressure early warning information.
In one possible implementation manner of the technical solution provided by the present invention, as shown in fig. 2, step S1 specifically includes:
S1.1, respectively obtaining a first roller pressure value of a first roller and a second roller pressure value of a second roller through a roller pressure sensor, and adding the first roller pressure value and the second roller pressure value to obtain a roller pressure total value;
According to the technical scheme provided by the invention, the first roller and the second roller are respectively provided with a roller pressure sensor used for detecting the pressure values of the first roller and the second roller, and the roller pressure sensors are connected with the processor. The method comprises the steps of respectively obtaining a first roller pressure value of a first roller and a second roller pressure value of a second roller through a roller pressure sensor, adding the first roller pressure value and the second roller pressure value, and obtaining a roller pressure total value after summation.
S1.2, dividing the total pressure value of the roller by the number of the rollers to obtain an average pressure value of the rollers;
According to the technical scheme provided by the invention, the total roll pressure value obtained by adding the first roll pressure value and the second roll pressure is divided by the number of the rolls, and the first roll and the second roll are known, so that the number of the rolls is two, and the average roll pressure value is obtained after dividing. The reason why the average pressure value of the rolls is calculated is that in the actual production process, when the pipe blank is rolled, the pressure values of the first roll and the second roll may deviate and differ due to the difference of the thickness degree and the quality degree of the pipe blank, so that the average pressure value of the rolls is obtained by summing and averaging the pressure values of the first roll and the pressure value of the second roll of the first roll, and the accuracy of the data is ensured.
The roll average pressure value is calculated by the following formula,
Wherein,Is the average pressure value of the roller,/>For the first roll pressure value,/>For the second roll pressure value, roller QTY is the number of rolls, roP gam is the roll pressure gradient parameter;
The technical proposal provided by the invention is that the pressure value of the first roller And second roll pressure value/>Adding to obtain the total value/>Roll pressure total value/>Dividing the Roller pressure gradient parameter by the Roller number Roller QTY, and adjusting the Roller pressure gradient parameter by a preset Roller pressure gradient parameter RoP gam to obtain a Roller average pressure value/>The roller pressure gradient parameter RoP gam is preset manually, and according to the difference of the material quality and thickness of the tube blank, the average pressure value/>The corresponding roll pressure gradient parameters RoP gam are different. If the harder the material of the tube blank is and the thicker the tube blank is, the average pressure value of the roller/>The larger the corresponding roll pressure gradient parameter RoP gam is, the smaller the average roll pressure value/>Compensating to obtain average pressure value/>, of rollerAnd the size is not larger. Conversely, if the softer the material of the tube blank and the finer the tube blank, the average pressure value of the rollsThe smaller the corresponding roller pressure gradient parameter RoP gam is, the larger the roller average pressure value isCompensating to obtain average pressure value/>, of rollerAnd will not be too small. Total value of roll pressureAnd average pressure value of roller/>In inverse proportion to the total value of roll pressureThe larger the corresponding roll average pressure value/>The larger, otherwise, if the total roll pressure value/>The smaller the corresponding average pressure value/>, of the rollerThe smaller.
And S1.3, comparing the average pressure value of the roller with a preset roller pressure value, and generating first pressure early warning information if the average pressure value of the roller is larger than the preset roller pressure value.
According to the technical scheme provided by the invention, the average pressure value of the roller is compared with the preset roller pressure value, and if the average pressure value of the roller is larger than the preset roller pressure value, first pressure early warning information is correspondingly generated. The preset roller pressure value is preset after the processor counts according to the historical roller average pressure values of the first roller and the second roller in the puncher. The effect of comparing the average pressure value of the roller with the preset roller pressure value is that the corresponding fusion pressure coefficient is conveniently calculated according to the corresponding generated first pressure early warning information.
Step S2, continuously obtaining a first guide plate pressure value of a first guide plate and a second guide plate pressure value of a second guide plate, and generating second pressure early warning information if the average guide plate pressure value calculated according to the first guide plate pressure value and the second guide plate pressure value is larger than a preset guide plate pressure value;
The technical scheme provided by the invention is that the guide plate is an external deformation tool fixed in the perforating machine, and not only plays a role in guiding hollow billets (hollow billets) and tube billets and stabilizing rolling lines, but also plays a role in controlling the outer diameter by closing the hole-type outer ring and limiting the transverse deformation (expanding) of the hollow billets. According to the law of minimum resistance to metal plastic flow, the diameter expansion of a capillary (particularly a thin-walled tube) is very large if there is no restriction by a guide plate, and in this case, the piercing process is difficult to achieve.
It is known that the two-roll skew-rolling piercing machine body is provided with two guide plates, which are named first guide plate and second guide plate. Continuously acquiring the pressure value of the first guide plate and the pressure value of the second guide plate, naming the acquired pressure value of the first guide plate as a first guide plate pressure value, and naming the acquired pressure value of the second guide plate as a second guide plate pressure value. And calculating the detected first guide plate pressure value and the second guide plate pressure value to obtain a guide plate average pressure value, comparing the guide plate average pressure value with a preset guide plate pressure value, and correspondingly generating second pressure early warning information if the guide plate average pressure value is larger than the preset guide plate pressure value. The preset guide plate pressure value is preset after the processor counts according to the historical guide plate average pressure values of the first guide plate and the second guide plate in the perforating machine. The effect of comparing the average pressure value of the guide plate with the preset guide plate pressure value is that the corresponding fusion pressure coefficient is conveniently calculated according to the second pressure early warning information correspondingly generated.
In one possible implementation manner, the step S2 specifically includes:
s2.1, respectively obtaining a first guide plate pressure value of a first guide plate and a second guide plate pressure value of a second guide plate through a guide plate sensor, and adding the first guide plate pressure value and the second guide plate pressure to obtain a guide plate pressure total value;
According to the technical scheme provided by the invention, the first guide plate and the second guide plate are respectively provided with the guide plate sensor for detecting the pressure values of the first guide plate and the second guide plate, and the guide plate sensors are connected with the processor. The first guide plate pressure value and the second guide plate pressure value of the first guide plate and the second guide plate pressure value of the second guide plate are respectively obtained through the guide plate sensor, the first guide plate pressure value and the second guide plate pressure value are added, and the guide plate pressure total value is obtained after summation.
S2.2, dividing the total guide plate pressure value by the number of the guide plates to obtain an average guide plate pressure value;
According to the technical scheme provided by the invention, the total guide plate pressure value obtained by adding the first guide plate pressure value and the second guide plate pressure is divided by the number of the guide plates, and the first guide plate and the second guide plate are known, so that the number of the guide plates is two, and the average guide plate pressure value is obtained after dividing. The average pressure value of the guide plates is calculated because in the actual production process, the pressure values of the first guide plate and the second guide plate have certain deviation and different conditions possibly because of different thickness degree and quality degree of the tube blank when the tube blank is rolled, so that the pressure values of the first guide plate and the pressure values of the second guide plate of the first guide plate are summed and averaged to obtain relatively accurate average pressure values of the guide plates, and the accuracy of data is ensured.
The average pressure value of the guide plate is calculated by the following formula,
Wherein,For average pressure value of guide plate,/>For the first guide pressure value,/>For the second guide pressure value, guides QTY is the number of Guides,/>Is a guide plate pressure gradient parameter;
The technical proposal provided by the invention is that the pressure value of the first guide plate And the second guide plate pressure valueAdding to obtain the total guide plate pressure value/>Total value of guide plate pressureDividing the pressure gradient parameter by the guide number Guides QTY, and adjusting the pressure gradient parameter GuP gam to obtain the average pressure value/>The pressure gradient parameter GuP gam of the guide plate is preset manually, and the average pressure value/>, of the guide plate is obtained according to the difference of the materials and the thickness of the tube blankThe corresponding guide plate pressure gradient parameters GuP gam are different. If the material of the tube blank is harder and the tube blank is thicker, the average pressure value of the guide plateThe larger the corresponding guide plate pressure gradient parameter GuP gam is, the smaller the average pressure value of the guide plate isCompensating to obtain average pressure value/>, of guide plateAnd the size is not larger. Conversely, if the softer the material of the tube blank is and the finer the tube blank is, the average pressure value of the guide plate/>The smaller the corresponding guide plate pressure gradient parameter GuP gam is, the larger the average guide plate pressure value/>Compensating to obtain average pressure value of guide plateAnd will not be too small. Total guide plate pressure value/>Average pressure value with guide plateProportional to the total value of the guide plate pressure/>The larger the corresponding average pressure value/>, of the guide plateThe larger the total guide pressure/>, otherwise The smaller the corresponding average pressure value/>, of the guide plateThe smaller.
And S2.3, comparing the average pressure value of the guide plate with a preset guide plate pressure value, and generating second pressure early warning information if the average pressure value of the guide plate is larger than the preset guide plate pressure value.
According to the technical scheme provided by the invention, the average pressure value of the guide plate is compared with the preset guide plate pressure value, and if the average pressure value of the guide plate is larger than the preset guide plate pressure value, second pressure early warning information is correspondingly generated. The preset guide plate pressure value is preset after the processor counts according to the historical guide plate average pressure values of the first guide plate and the second guide plate in the perforating machine. The effect of comparing the average pressure value of the guide plate with the preset guide plate pressure value is that the corresponding fusion pressure coefficient is conveniently calculated according to the second pressure early warning information correspondingly generated.
Step S3, when judging to generate first pressure early warning information and/or second pressure early warning information, calculating a first roller pressure value, a second roller pressure value, a first guide plate pressure value and a second guide plate pressure value to obtain a fusion pressure coefficient of the first tube blank when the plug is continuously pushed, and comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
According to the technical scheme provided by the invention, when the processor judges and generates the first pressure early warning information and/or the second pressure early warning information, the first roller pressure value, the second roller pressure value, the first guide plate pressure value and the second guide plate pressure value are summed up and calculated to obtain a fusion pressure coefficient of the plug when continuously pushing when the first tube blank is perforated. The fusion pressure coefficient is that the first tube blank is simultaneously subjected to pressure values from two rollers and two guide plates. When the first tube blank is perforated, the plug can continuously push, at the moment, the two rollers and the two guide plates can roll the first tube blank and apply pressure to the first tube blank, so that the effect that the wall thickness of the first tube blank is uniform, the diameter openings are uniform and the like when the first tube blank is perforated can be ensured, and the production quality of the seamless steel tube is ensured. Therefore, when judging to generate the first pressure pre-warning information and/or the second pressure pre-warning information, the fusion pressure coefficient is obtained through calculation. And comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient. The preset fusion pressure coefficient is preset after the processor performs statistics according to the historical fusion pressure coefficient generated in the puncher. The effect of comparing the fusion pressure coefficient with the preset fusion pressure coefficient is that the corresponding control power and rolling power are offset correspondingly and conveniently according to the corresponding generated fusion pressure change coefficient.
In one possible implementation manner, the step S3 specifically includes:
S3.1, when judging that the first pressure early warning information and/or the second pressure early warning information are generated, processing and adding the first roller pressure value, the second roller pressure value, the first guide plate pressure value and the second guide plate pressure value, and obtaining a fusion pressure coefficient after summing;
According to the technical scheme, when first pressure early warning information and/or second pressure early warning information are judged to be generated, a first roller pressure value and a second roller pressure value measured by a roller pressure sensor are adjusted through roller pressure influence factors, a first guide plate pressure value and a second guide plate pressure value measured by a guide plate sensor are adjusted through guide plate pressure influence factors, and the adjusted first roller pressure value, second roller pressure value, first guide plate pressure value and second guide plate pressure value are added, and then fusion pressure coefficients are obtained after addition and summation.
S3.2, dividing the fusion pressure coefficient by a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
The technical scheme provided by the invention is that the fusion pressure coefficient is divided by a preset fusion pressure coefficient, wherein the preset fusion pressure coefficient is preset after the processor performs statistics according to the historical fusion pressure coefficient generated in the puncher. And generating a fusion pressure change coefficient after dividing. The fusion pressure change coefficient has the effect of facilitating the corresponding deviation of the corresponding control power and rolling power.
The fusion pressure variation coefficient is calculated by the following formula,
/>
Wherein Fusionpa oft is the fusion pressure change coefficient,For the first roll pressure value,/>For the second roll pressure value, RO ifc is the roll pressure influence factor,/>For the first guide pressure value,/>Gu ifc is the guide plate pressure influence factor, fusionpa prec is the preset fusion pressure coefficient, which is the second guide plate pressure value.
The technical proposal provided by the invention is that the pressure value of the first rollerAnd second roll pressure value/>After addition, the total roll pressure value/>Adjusting through a preset roll pressure influence factor RO ifc to obtain an adjusted roll pressure total value/>The roll pressure influencing factor RO ifc is preset manually, and is based on the difference of the material quality and thickness of the tube blank, so that the roll pressure total value/> The corresponding roll pressure influencing factors RO ifc are different. Roll pressure total value/>, if the harder the material of the tube blank is and the thicker the tube blank isThe larger the corresponding roll pressure influencing factor RO ifc is, the smaller the roll pressure total value/>Compensating so that the total value of the roller pressure/>And the size is not larger. Conversely, if the softer the material of the tube blank is and the finer the tube blank is, the roll pressure total value/>The smaller the corresponding roll pressure influencing factor RO ifc is, the larger the roll pressure total value/>, theCompensating so that the total value of the roller pressure/>And will not be too small.
First guide plate pressure valueAnd second guide plate pressure value/>After addition, the resulting total value of the guide plate pressure/>The guide plate pressure is adjusted through a preset guide plate pressure influence factor Gu ifc to obtain an adjusted guide plate pressure total value/>The guide plate pressure influencing factor Gu ifc is preset manually, and is based on the difference of the material and thickness of the tube blank, so that the total guide plate pressure valueThe corresponding guide plate pressure influencing factors Gu ifc are different. If the harder the material of the tube blank is and the thicker the tube blank is, the total guide plate pressure value/>The larger the corresponding guide plate pressure influence factor Gu ifc is, the smaller the guide plate pressure total value/>Compensation is performed such that the total value of the guide plate pressure/>And the size is not larger. Conversely, if the softer the material of the tube blank is and the finer the tube blank is, the total guide plate pressure value/>The smaller the corresponding guide plate pressure influence factor Gu ifc is, the larger the guide plate pressure total value/>, theCompensating to make the total pressure value of the guide plateAnd will not be too small.
The adjusted total value of the roller pressureAnd the adjusted guide plate pressure total value/>Adding to obtain fusion pressure coefficient/>Will fuse the pressure coefficientsDividing by the preset fusion pressure coefficient Fusionpa prec, the fusion pressure change coefficient Fusionpa oft is obtained. Fusion pressure coefficientIn direct proportion to the fusion pressure change coefficient Fusionpa oft, if the fusion pressure coefficient/> The larger the corresponding fusion pressure change coefficient Fusionpa oft is. On the contrary, if the pressure coefficient/> The smaller the corresponding fusion pressure change coefficient Fusionpa oft is.
S4, acquiring a first pressure of the plug trolley to the plug at the current moment, performing reduced offset calculation on the first pressure according to the fusion pressure change coefficient to obtain a second pressure, and adjusting a first control power of the plug trolley at the current moment according to the first pressure and the second pressure to obtain a second control power;
according to the technical scheme provided by the invention, the ejector pin is an important tool for carrying out internal deformation on a pipe blank during perforation operation of the perforating machine, the axial position is fixed and unchanged in a deformation area by supporting the ejector pin during operation, one end of the ejector pin is provided with a known ejector pin, and the other end of the ejector pin is arranged on the ejector pin trolley. When the pipe blank is perforated, the plug trolley sends the plug to the middle of two rollers of the perforating machine through the connected ejector rod, and when in rolling, the plug trolley bears the axial thrust transmitted by the plug and gives the axial pressure of the plug, so that the plug is ensured to uniformly perforate the pipe blank and rotate along with the pipe blank until the rolling is completed. The top trolley is provided with a pressure sensor in advance and is connected with the processor. And acquiring the pressure value of the plug trolley to the plug at the current moment by a pressure sensor preset by the plug trolley, naming the pressure value of the plug trolley to the plug at the current moment as first pressure, reducing and adjusting the first pressure according to the fusion pressure change coefficient, and calculating to obtain second pressure. The pressure reduction adjustment is needed because the first tube blank is subjected to pressure given by two rollers and two guide plates during rolling, and the plug is still pushed by the plug trolley to push the first tube blank to punch holes, so that the first tube blank is likely to be broken, uneven wall thickness, deformation of the tube blank and the like due to excessive expansion pressure, and the yield of the seamless steel tube is affected, and therefore the pressure reduction adjustment is needed for the first pressure of the plug trolley, and the yield of the finished seamless steel tube is guaranteed. And calculating the first pressure and the second pressure, and adjusting the first control power of the plug trolley at the current moment after calculation to obtain the second control power. The first control power is obtained by a power sensor preset by the top trolley, and the power sensor preset by the top trolley is connected with the processor.
In one possible implementation manner, the step S4 specifically includes:
S4.1, acquiring a first pressure of a plug trolley to a plug at the current moment, and calculating the first pressure and the fusion pressure change coefficient to obtain a second pressure;
according to the technical scheme provided by the invention, the plug trolley is provided with a pressure sensor in advance and is connected with the processor. And acquiring the first pressure of the plug trolley to the plug at the current moment through a pressure sensor preset by the plug trolley, reducing the first pressure according to the fusion pressure change coefficient, adjusting through a pressure influence factor, and calculating to obtain the second pressure.
S4.2, comparing the first pressure with the second pressure to obtain a control power adjustment value;
According to the technical scheme provided by the invention, the second pressure is divided by the first pressure, and the control power adjustment value is obtained according to the obtained ratio. The function of obtaining the control power adjustment value is to facilitate the subsequent operation of the first control power and obtain the corresponding second control power.
S4.3, obtaining first control power of the plug trolley at the current moment, and calculating the first control power and the power adjustment value to obtain second control power;
According to the technical scheme provided by the invention, the power sensor is preset on the plug trolley, and the preset power sensor of the plug trolley is connected with the processor. The method comprises the steps of obtaining first control power of a current moment of a plug trolley through a power sensor preset by the plug trolley, multiplying the first control power of the current moment of the plug trolley by a control power adjustment value, and adjusting through a control power influence factor to obtain second control power. The effect of obtaining the second control power is that the control power of the plug trolley is conveniently regulated down, the pressure of the plug connected with the plug trolley when the plug perforates the first tube blank is correspondingly regulated down, and the yield of the seamless steel tube is ensured.
The second control power is calculated by the following formula,
Wherein pa 2 is the second pressure, pa 1 is the first pressure, fusionpa oft is the fusion pressure variation coefficient, pre ifc is the pressure influence factor,For the second control power,/>For the first control power,/>To control the power impact factor.
According to the technical scheme provided by the invention, the first pressure pa 1 is multiplied by the fusion pressure change coefficient Fusionpa oft, and the pressure influence factor pre ifc preset is used for adjusting, so that the value pa 1·Fusionpaoft·preifc of the first pressure pa 1, which needs to be reduced after being offset by the fusion pressure change coefficient Fusionpa oft, is obtained. The pressure influencing factor pre ifc is preset manually, and the pressure reduction value pa 1·Fusionpaoft is different according to the difference of the material quality and the thickness of the tube blank, and the corresponding pressure influencing factor pre ifc is different. if the material of the tube blank is harder and the tube blank is thicker, the value pa 1·Fusionpaoft required to be reduced is larger, the corresponding pressure influence factor pre ifc is reduced, the value pa 1·Fusionpaoft required to be reduced is compensated, and the obtained value pa 1·Fusionpaoft required to be reduced is not larger. Conversely, if the material of the tube blank is softer and the tube blank is thinner, the value pa 1·Fusionpaoft to be depressurized is smaller, the corresponding pressure influence factor pre ifc is increased, and the value pa 1·Fusionpaoft to be depressurized is compensated, so that the obtained value pa 1·Fusionpaoft to be depressurized is not smaller.
The first pressure pa 1 is subtracted from the value pa 1·Fusionpaoft·preifc to be depressurized, and the second pressure pa 2 is obtained according to the difference pa 1-pa1·Fusionpaoft·preifc. Dividing the second pressure pa 2 by the first pressure pa 1 to obtain a control power adjustment valueFirst control Power/>And control power adjustment value/>Multiplying/>And by a preset control power influence factor/>Make adjustments/>Obtain the second control power/>The control power influencing factor/>Is preset by people, and according to the difference of the materials and the thickness of the tube blank, the second control power/>Different, corresponding control power impact factorsDifferent. If the harder the material of the tube blank is and the thicker the tube blank is, the second control power/>The larger the corresponding control power impact factor/>Make a turn-down to the second control power/>Compensating to obtain a second control power/>And the size is not larger. Conversely, if the material of the tube blank is softer and the tube blank is thinner, the second control powerThe smaller the corresponding control power impact factor/>Performing a step up to the second control powerCompensating to obtain a second control power/>And will not be too small. Second pressure pa 2 and second control power/>In proportion, if the second pressure pa 2 is larger, the power adjustment value/>, is controlledThe larger the corresponding second control power/>The larger. Conversely, if the second pressure pa 2 is smaller, the power adjustment value/>, is controlledThe smaller the corresponding second control power/>The smaller.
And S5, performing deceleration offset calculation on the first rotating speed of the first roller and the second roller at the current moment according to the fusion pressure change coefficient to obtain a second rotating speed, calculating the first rotating speed and the second rotating speed to obtain a rolling power adjustment value, and adjusting the first rolling power at the current moment according to the rolling power adjustment value to generate a second rolling power.
According to the technical scheme provided by the invention, the first roller and the second roller are provided with roller rotating speed sensors in advance and are connected with the processor. And acquiring the rotation speeds of the first roller and the second roller at the current moment through roller rotation speed sensors preset by the first roller and the second roller, naming the rotation speeds of the first roller and the second roller at the current moment as first rotation speeds, reducing and adjusting the first rotation speeds according to the fusion pressure change coefficient, and calculating to obtain second rotation speeds. The reason why the reduction adjustment is performed is that when the first tube blank is perforated, the reduction adjustment is likely to be performed on the first rotational speeds of the first roller and the second roller to ensure the yield of the seamless steel tube because the rolling speed is too high due to the too high rotational speed of the roller while the pressure of the first tube blank pushed by the plug controlled by the plug trolley is too high, and the conditions such as tube blank breakage, uneven wall thickness, tube blank deformation and the like caused by the excessive expansion pressure of the first tube blank affect the yield of the seamless steel tube. And calculating the first rotation speed and the second rotation speed, and adjusting the first rolling power of the first roller and the second roller at the current moment after calculation to obtain the second rolling power. The second rolling power is obtained by power sensors preset by the first roller and the second roller, and the power sensors preset by the first roller and the second roller are connected with the processor.
In one possible implementation manner, the step S5 specifically includes:
S5.1, acquiring a first rotation speed of a first roller and a second roller at the current moment through a roller rotation speed sensor;
According to the technical scheme provided by the invention, the first roller and the second roller are provided with roller rotating speed sensors in advance and are connected with the processor. And acquiring the first rotating speeds of the first roller and the second roller at the current moment through roller rotating speed sensors preset by the first roller and the second roller.
S5.2, calculating the first rotation speed and the fusion pressure change coefficient to obtain a second rotation speed;
According to the technical scheme provided by the invention, the first rotation speed is reduced according to the fusion pressure change coefficient, and the second rotation speed is obtained after calculation by adjusting the rotation speed influence factor.
S5.3, comparing the first rotation speed with the second rotation speed to obtain a rolling power adjustment value;
According to the technical scheme provided by the invention, the second rotation speed is divided by the first rotation speed, and the rolling power adjustment value is obtained according to the obtained ratio. The function of obtaining the rolling power adjustment value is to facilitate the subsequent operation of the first rolling power and obtain the corresponding second rolling power.
S5.4, obtaining first rolling power of the first roller and the second roller at the current moment, and calculating the first rolling power and the rolling power adjustment value to obtain second rolling power;
According to the technical scheme provided by the invention, the power sensors are preset on the first roller and the second roller, and the power sensors preset on the first roller and the second roller are connected with the processor. And acquiring first rolling power of the first roller and the second roller at the current moment through power sensors preset by the first roller and the second roller, multiplying the first rolling power of the first roller and the second roller at the current moment by a rolling power adjusting value, and adjusting through a rolling power influencing factor to acquire second rolling power. The effect of obtaining the second rolling power is that the rolling power of the first roller and the second roller is conveniently regulated down, the corresponding reduction of the speed of the first roller and the second roller when the rotating speed of the first roller and the second roller rolls the first tube blank is ensured, and the yield of the seamless steel tube is ensured.
The second rolling power is calculated by the following equation,
Wherein,For the second rotation speed,/>For the first rotational speed, fusionpa oft is the fusion pressure change coefficient, tu ifc is the rotational speed influence factor,/>For the second rolling power,/>For the first rolling power,Is a rolling power influence factor.
The technical proposal provided by the invention is that the first rotation speedMultiplied by a fusion pressure change coefficient Fusionpa oft, and adjusted by a preset rotation speed influence factor Tu ifc to obtain a first rotation speed/>Values requiring deceleration after being shifted by the fusion pressure change coefficient Fusionpa oft/>The rotation speed influencing factor Tu ifc is preset manually, and is required to be a deceleration value/>, according to the difference of the material quality and thickness of the tube blankThe corresponding rotation speed influencing factors Tu ifc are different. If the harder the material of the tube blank is and the thicker the tube blank is, a deceleration value/>The larger the corresponding rotation speed influence factor Tu ifc is, the smaller the rotation speed influence factor Tu ifc is, and the value/>, which needs to be reduced, is adjustedCompensating to obtain the value required to be reducedAnd the size is not larger. Conversely, if the softer the material of the tube blank and the thinner the tube blank, a deceleration value is requiredThe smaller the corresponding rotation speed influence factor Tu ifc is, the larger the rotation speed influence factor Tu ifc is, and the value of the speed reduction is neededCompensating to obtain the value/>, which needs to be reducedAnd will not be too small.
Will first rotate at speedAnd the value requiring deceleration/>Subtracting from the difference/>Obtain a second rotational speed/>Second rotational speed/>And a first rotational speed/>Dividing to obtain rolling power adjustment value/>First rolling Power/>And rolling power adjustment value/>Multiplying/> And pass through preset rolling power influence factors/>Make adjustments/> Obtaining the second rolling power/>The rolling power influencing factor/>Is preset by people, and the second rolling power/>, according to the difference of the materials and the thickness of the tube blanksDifferent, corresponding rolling power influencing factors/>Different. If the harder the material of the tube blank is and the thicker the tube blank is, the second rolling power/>The larger the corresponding rolling power influence factor/>Reducing the second rolling power/>Compensating to obtain a second rolling power/>And the size is not larger. Conversely, if the softer the material of the tube blank is and the finer the tube blank is, the second rolling power/>The smaller the corresponding rolling power influence factorPerforming enlargement on the second rolling power/>Compensating to obtain a second rolling power/>And will not be too small. Second rotation speed/>And second rolling power/>In proportion to the second rotational speed/>The larger the rolling power adjustment value/>The greater the corresponding second rolling power/>The larger. Conversely, if the second rotational speed/>The smaller the rolling power adjustment value/>The smaller the corresponding second rolling power/>The smaller.
When judging to generate the first pressure early warning information and/or the second pressure early warning information, adding the first roller pressure value, the second roller pressure value, the first guide plate pressure value and the second guide plate pressure value, and obtaining a fusion pressure coefficient after summing, the method further comprises the following steps:
Acquiring a roller pressure value, a roller pressure threshold interval and a guide plate pressure threshold interval preset by a guide plate pressure value, and acquiring a fusion pressure adjustment interval according to the roller pressure threshold interval and the guide plate pressure threshold interval;
subtracting the fusion pressure coefficient from a preset fusion pressure coefficient to obtain a fusion pressure difference value;
Comparing the fusion pressure difference value with the fusion pressure adjustment interval, and adjusting any one of the first pressure or the first rotation speed according to the generated fusion pressure change coefficient if the fusion pressure difference value is in the fusion pressure adjustment interval;
And if the fusion pressure difference value exceeds the fusion pressure adjustment interval, uniformly adjusting the first pressure and the first rotation speed according to the generated fusion pressure change coefficient.
In one possible implementation manner, the step S5 further includes:
s5- (1), if the third control power input by the staff is judged to be received, correcting the control power influence factor according to the difference value of the third control power and the second control power to obtain a corrected control power influence factor;
According to the technical scheme provided by the invention, when the processor calculates the second control power which needs to be adjusted, the related adjustment information of the second control power is sent to the staff for confirmation, and after the staff receives the confirmation information, if the staff finds that the second control power cannot effectively adjust the control power of the plug trolley, the third control power is manually input to adjust the control power of the plug trolley, so that the pressure of the plug on the tube blank is reduced, the expansion pressure during tube blank perforation is reduced, and the yield of the tube blank is improved. And finally, according to the difference value of the third control power and the second control power, correcting the control power influence factor, so that the corrected control power influence factor can more accurately adjust the control power of the plug trolley, thereby reducing the problems of tube blank cracking, uneven wall thickness and the like caused by overlarge pressure of the plug, and improving the yield of the seamless steel tube.
S5- (2), if the third rolling power input by the staff is judged to be received, correcting the rolling power influence factor according to the difference value of the third rolling power and the second rolling power to obtain a corrected rolling power influence factor;
According to the technical scheme provided by the invention, when the processor calculates the second rolling power which needs to be adjusted, the related adjustment information of the second rolling power is sent to the staff to confirm, and after the staff receives the confirmation information, if the staff finds that the second rolling power cannot effectively adjust the rolling power of the roller, the third rolling power is manually input to adjust the rolling power of the roller, so that the pressure of the roller on the tube blank is reduced, the pressure of the tube blank when the tube blank enters the roller for rolling is reduced, and the yield of the tube blank is improved. And finally, according to the difference value of the third rolling power and the second rolling power, correcting the rolling power influence factor, so that the corrected rolling power influence factor can more accurately adjust the rolling power of the roller, thereby reducing the problems of cracking of the tube blank, uneven wall thickness and the like caused by overlarge pressure when the tube blank enters the roller, and improving the yield of the seamless steel tube.
The corrected control power weight value and the corrected rolling power weight value are calculated by the following formulas,
Wherein,For the third control power,/>For the second control power,/>For the corrected control power impact factor,/>For controlling the power factor, U 1 is the control power factor correction value,For the third rolling power,/>For the second rolling power,/>For the corrected rolling power influence factor,/>For the rolling power influence factor, U 2 is the rolling power influence factor correction value.
The technical proposal provided by the invention is thatObtaining a control power influence factorRequiring an increased value at the third control power/>Greater than the second control power/>At this point, then it is demonstrated that the processor of the present invention calculates the second control power of the input/>Smaller, so that a factor/>, which affects the control power, is needed at this timePerform augmentation treatment/> Obtaining the control power influence factor/>, after the increase correction/>
The invention is realized byObtain the control power influencing factor/>A reduced value is required, at a third control power/>Less than the second control power/>At this point, then it is demonstrated that the processor of the present invention calculates the second control power of the input/>Larger, so that a factor/>, which affects the control power, is needed at this timeReduction treatment/>Obtaining the corrected control power influence factor/>Corresponding to the corrected control power influence factor/>The control power of the plug trolley is adjusted in practice, so that the pressure influence of the plug on the tube blank is changed. Through the formula, the formula for calculating the second control power provided by the invention can be continuously trained, so that the calculation accuracy is improved, and the current scene requirement is met.
The invention is realized byObtain the rolling power influence factor/>The value required to be increased, at the third rolling power/>Greater than the second rolling power/>At this time, it is proved that the processor of the present invention calculates the input second rolling power/>Smaller, so that a factor/>, which influences the rolling power, is required at this timePerform augmentation treatment/>Obtaining the rolling power influence factor/>, after the increase correction
The invention is realized byObtain the rolling power influence factor/>A value to be reduced, at a third rolling power/>Less than the second rolling power/>At this time, it is proved that the processor of the present invention calculates the input second rolling power/>Larger, so that it is now necessary to influence the factor/>, on the rolling powerPerforming reduction treatment/>Obtaining the reduced and corrected rolling power influence factorCorresponding to the corrected rolling power influence factor/>The method is more suitable for the actual rolling power of the roller, so that the pressure influence generated when the tube blank enters the roller for rolling is changed. Through the formula, the formula for calculating the second rolling power provided by the invention can be continuously trained, so that the calculation accuracy is improved, and the current scene requirement is met.
In order to implement the data processing method suitable for the seamless steel pipe provided by the invention, the invention also provides a data processing system suitable for the seamless steel pipe, as shown in a structural schematic diagram of the system in fig. 3, which comprises the following steps:
The first early warning module is used for continuously acquiring a first roller pressure value of a first roller and a second roller pressure value of a second roller, and generating first pressure early warning information if the roller average pressure value calculated according to the first roller pressure value and the second roller pressure value is larger than a preset roller pressure value;
The second early warning module is used for continuously acquiring a first guide plate pressure value of the first guide plate and a second guide plate pressure value of the second guide plate, and generating second pressure early warning information if the guide plate average pressure value calculated according to the first guide plate pressure value and the second guide plate pressure value is larger than a preset guide plate pressure value;
The fusion module is used for calculating a first roller pressure value, a second roller pressure value, a first guide plate pressure value and a second guide plate pressure value when judging and generating first pressure early warning information and/or second pressure early warning information, so as to obtain a fusion pressure coefficient of the first tube blank when the plug is continuously pushed, and comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
the pressure reducing module is used for obtaining the first pressure of the plug trolley to the plug at the current moment, reducing the offset calculation of the pressure of the first pressure according to the fusion pressure change coefficient to obtain the second pressure, and adjusting the first control power of the plug trolley at the current moment according to the first pressure and the second pressure to obtain the second control power;
and the speed reducing module is used for reducing the deviation calculation of the first rotating speed of the first roller and the second roller at the current moment according to the fusion pressure change coefficient to obtain a second rotating speed, calculating the first rotating speed and the second rotating speed to obtain a rolling power adjustment value, and adjusting the first rolling power at the current moment according to the rolling power adjustment value to generate a second rolling power.
The present invention also provides a storage medium having stored therein a computer program for implementing the methods provided by the various embodiments described above when executed by a processor.
The storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media can be any available media that can be accessed by a general purpose or special purpose computer. For example, a storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an Application SPECIFIC INTEGRATED Circuits (ASIC). In addition, the ASIC may reside in a user device. The processor and the storage medium may reside as discrete components in a communication device. The storage medium may be read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tape, floppy disk, optical data storage device, etc.
The present invention also provides a program product comprising execution instructions stored in a storage medium. The at least one processor of the device may read the execution instructions from the storage medium, the execution instructions being executed by the at least one processor to cause the device to implement the methods provided by the various embodiments described above.
In the above embodiments of the terminal or the server, it should be understood that the Processor may be a central processing unit (english: central Processing Unit, abbreviated as CPU), or may be other general purpose processors, digital signal processors (english: DIGITAL SIGNAL Processor, abbreviated as DSP), application specific integrated circuits (english: application SPECIFIC INTEGRATED Circuit, abbreviated as ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A data processing method suitable for a seamless steel pipe, comprising:
continuously acquiring a first roller pressure value of a first roller and a second roller pressure value of a second roller, and generating first pressure early warning information if the roller average pressure value calculated according to the first roller pressure value and the second roller pressure value is larger than a preset roller pressure value;
Continuously acquiring a first guide plate pressure value of a first guide plate and a second guide plate pressure value of a second guide plate, and generating second pressure early warning information if the average guide plate pressure value calculated according to the first guide plate pressure value and the second guide plate pressure value is larger than a preset guide plate pressure value;
When judging to generate first pressure early warning information and/or second pressure early warning information, calculating a first roller pressure value, a second roller pressure value, a first guide plate pressure value and a second guide plate pressure value to obtain a fusion pressure coefficient of the first tube blank when the plug is continuously pushed, and comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
Acquiring a first pressure of a plug trolley to a plug at the current moment, performing reduced offset calculation on the first pressure according to the fusion pressure change coefficient to obtain a second pressure, and adjusting a first control power of the plug trolley at the current moment according to the first pressure and the second pressure to obtain a second control power;
and performing reduced offset calculation on the first rotating speed of the first roller and the second roller at the current moment according to the fusion pressure change coefficient to obtain a second rotating speed, calculating the first rotating speed and the second rotating speed to obtain a rolling power adjustment value, and adjusting the first rolling power at the current moment according to the rolling power adjustment value to generate a second rolling power.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
The continuously obtaining a first roll pressure value of the first roll and a second roll pressure value of the second roll, if the roll average pressure value calculated according to the first roll pressure value and the second roll pressure value is greater than a preset roll pressure value, generating first pressure early warning information, including:
Respectively obtaining a first roller pressure value of a first roller and a second roller pressure value of a second roller through a roller pressure sensor, and adding the first roller pressure value and the second roller pressure value to obtain a roller pressure total value;
Dividing the total pressure value of the rollers by the number of the rollers to obtain an average pressure value of the rollers;
The roll average pressure value is calculated by the following formula,
Wherein,Is the average pressure value of the roller,/>For the first roll pressure value,/>For the second roll pressure value, roller QTY is the number of rolls, roP gam is the roll pressure gradient parameter;
and comparing the average pressure value of the roller with a preset roller pressure value, and generating first pressure early warning information if the average pressure value of the roller is larger than the preset roller pressure value.
3. The method of claim 2, wherein the step of determining the position of the substrate comprises,
The continuously obtaining the first guide plate pressure value of the first guide plate and the second guide plate pressure value of the second guide plate, if the average guide plate pressure value calculated according to the first guide plate pressure value and the second guide plate pressure value is larger than the preset guide plate pressure value, generating second pressure early warning information, including:
the method comprises the steps of respectively obtaining a first guide plate pressure value of a first guide plate and a second guide plate pressure value of a second guide plate through a guide plate sensor, and adding the first guide plate pressure value and the second guide plate pressure to obtain a guide plate pressure total value;
dividing the total guide plate pressure value by the number of the guide plates to obtain an average guide plate pressure value;
the average pressure value of the guide plate is calculated by the following formula,
Wherein,For average pressure value of guide plate,/>For the first guide pressure value,/>For the second guide pressure value, guides QTY is the guide number, guP gam is the guide pressure gradient parameter;
And comparing the average pressure value of the guide plate with a preset guide plate pressure value, and generating second pressure early warning information if the average pressure value of the guide plate is larger than the preset guide plate pressure value.
4. The method of claim 3, wherein the step of,
When judging to generate the first pressure early warning information and/or the second pressure early warning information, calculating a first roller pressure value, a second roller pressure value, a first guide plate pressure value and a second guide plate pressure value to obtain a fusion pressure coefficient of the first tube blank when the plug is continuously pushed, comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient, wherein the method comprises the following steps:
When judging to generate first pressure early warning information and/or second pressure early warning information, processing and adding the first roller pressure value, the second roller pressure value, the first guide plate pressure value and the second guide plate pressure value, and obtaining a fusion pressure coefficient after summing;
dividing the fusion pressure coefficient by a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
The fusion pressure variation coefficient is calculated by the following formula,
Wherein Fusionpa oft is the fusion pressure change coefficient,For the first roll pressure value,/>For the second roll pressure value, RO ifc is the roll pressure influence factor,/>For the first guide pressure value,/>Gu ifc is the guide plate pressure influence factor, fusionpa prec is the preset fusion pressure coefficient, which is the second guide plate pressure value.
5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
The method for obtaining the first pressure of the plug trolley to the plug at the current moment, performing reduced offset calculation on the first pressure according to the fusion pressure change coefficient to obtain the second pressure, and adjusting the first control power of the plug trolley at the current moment according to the first pressure and the second pressure to obtain the second control power comprises the following steps:
Acquiring a first pressure of a plug trolley to a plug at the current moment, and calculating the first pressure and the fusion pressure change coefficient to obtain a second pressure;
Comparing the first pressure with the second pressure to obtain a control power adjustment value;
Acquiring a first control power of the plug trolley at the current moment, and calculating the first control power and the power adjustment value to obtain a second control power;
The second control power is calculated by the following formula,
Wherein pa 2 is the second pressure, pa 1 is the first pressure, fusionpa oft is the fusion pressure variation coefficient, pre ifc is the pressure influence factor,For the second control power,/>For the first control power,/>To control the power impact factor.
6. The method of claim 5, wherein the step of determining the position of the probe is performed,
The step of performing a deceleration offset calculation on the first rotation speed of the first roller and the second roller at the current moment according to the fusion pressure change coefficient to obtain a second rotation speed, and performing an operation on the first rotation speed and the second rotation speed to obtain a rolling power adjustment value, and adjusting the first rolling power at the current moment according to the rolling power adjustment value to generate a second rolling power, including:
Acquiring a first rotating speed of the first roller and a second roller at the current moment through a roller rotating speed sensor;
Calculating the first rotation speed and the fusion pressure change coefficient to obtain a second rotation speed;
Comparing the first rotation speed with the second rotation speed to obtain a rolling power adjustment value;
Obtaining first rolling power of a first roller and a second roller at the current moment, and calculating the first rolling power and the rolling power adjustment value to obtain second rolling power;
the second rolling power is calculated by the following equation,
Wherein,For the second rotation speed,/>For the first rotational speed, fusionpa oft is the fusion pressure change coefficient, tu ifc is the rotational speed influence factor,/>For the second rolling power,/>For the first rolling power,/>Is a rolling power influence factor.
7. The method of claim 4, wherein the step of determining the position of the first electrode is performed,
When judging to generate the first pressure early warning information and/or the second pressure early warning information, adding the first roller pressure value, the second roller pressure value, the first guide plate pressure value and the second guide plate pressure value, and obtaining a fusion pressure coefficient after summing, the method further comprises the following steps:
Acquiring a roller pressure value, a roller pressure threshold interval and a guide plate pressure threshold interval preset by a guide plate pressure value, and acquiring a fusion pressure adjustment interval according to the roller pressure threshold interval and the guide plate pressure threshold interval;
subtracting the fusion pressure coefficient from a preset fusion pressure coefficient to obtain a fusion pressure difference value;
Comparing the fusion pressure difference value with the fusion pressure adjustment interval, and adjusting any one of the first pressure or the first rotation speed according to the generated fusion pressure change coefficient if the fusion pressure difference value is in the fusion pressure adjustment interval;
And if the fusion pressure difference value exceeds the fusion pressure adjustment interval, uniformly adjusting the first pressure and the first rotation speed according to the generated fusion pressure change coefficient.
8. The method of claim 6, wherein the step of providing the first layer comprises,
After obtaining the first rolling power of the first roller and the second roller at the current moment and subtracting the first rolling power from the rolling power adjustment value to obtain the second rolling power, the method further comprises:
If the third control power input by the staff is judged to be received, correcting the control power influence factor according to the difference value of the third control power and the second control power to obtain a corrected control power influence factor;
If the third rolling power input by the staff is judged to be received, correcting the rolling power influence factor according to the difference value of the third rolling power and the second rolling power to obtain a corrected rolling power influence factor;
the corrected control power weight value and the corrected rolling power weight value are calculated by the following formulas,
Wherein,For the third control power,/>For the second control power,/>For the corrected control power impact factor,/>For controlling the power factor, U 1 is the control power factor correction value,/>For the third rolling power,/>For the second rolling power,/>For the corrected rolling power influence factor,/>For the rolling power influence factor, U 2 is the rolling power influence factor correction value.
9. A data processing system adapted for use with a seamless steel pipe, comprising:
The first early warning module is used for continuously acquiring a first roller pressure value of a first roller and a second roller pressure value of a second roller, and generating first pressure early warning information if the roller average pressure value calculated according to the first roller pressure value and the second roller pressure value is larger than a preset roller pressure value;
The second early warning module is used for continuously acquiring a first guide plate pressure value of the first guide plate and a second guide plate pressure value of the second guide plate, and generating second pressure early warning information if the guide plate average pressure value calculated according to the first guide plate pressure value and the second guide plate pressure value is larger than a preset guide plate pressure value;
The fusion module is used for calculating a first roller pressure value, a second roller pressure value, a first guide plate pressure value and a second guide plate pressure value when judging and generating first pressure early warning information and/or second pressure early warning information, so as to obtain a fusion pressure coefficient of the first tube blank when the plug is continuously pushed, and comparing the fusion pressure coefficient with a preset fusion pressure coefficient to generate a fusion pressure change coefficient;
the pressure reducing module is used for obtaining the first pressure of the plug trolley to the plug at the current moment, reducing the offset calculation of the pressure of the first pressure according to the fusion pressure change coefficient to obtain the second pressure, and adjusting the first control power of the plug trolley at the current moment according to the first pressure and the second pressure to obtain the second control power;
and the speed reducing module is used for reducing the deviation calculation of the first rotating speed of the first roller and the second roller at the current moment according to the fusion pressure change coefficient to obtain a second rotating speed, calculating the first rotating speed and the second rotating speed to obtain a rolling power adjustment value, and adjusting the first rolling power at the current moment according to the rolling power adjustment value to generate a second rolling power.
10. A storage medium having stored therein a computer program for implementing the method of any of claims 1 to 8 when executed by a processor.
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