CN115287433B - Online solid solution device and method for bimetal composite pipe - Google Patents
Online solid solution device and method for bimetal composite pipe Download PDFInfo
- Publication number
- CN115287433B CN115287433B CN202211230790.3A CN202211230790A CN115287433B CN 115287433 B CN115287433 B CN 115287433B CN 202211230790 A CN202211230790 A CN 202211230790A CN 115287433 B CN115287433 B CN 115287433B
- Authority
- CN
- China
- Prior art keywords
- composite pipe
- temperature
- solid solution
- cooling water
- bimetal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
- C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention relates to an online solid solution device and method for a bimetal composite pipe, in particular to an online solid solution device and method for a carbon steel/stainless steel composite pipe, and belongs to the field of manufacturing of bimetal composite pipes. The on-line solid solution device mainly comprises a moving mechanism, a rotating mechanism, a driving mechanism, a temperature-supplementing solid solution mechanism and a quick cooling mechanism. The online solid solution method of the invention carries out the working procedures of perforation, rolling and fixed reducing of the bimetal composite pipe in turn on the basis of fully utilizing the rolling waste heat; and the high-temperature composite pipe after reducing is subjected to heat treatment from the rolled pipe span, and then the solution treatment of the stainless steel on the inner wall is realized through an online solution device, and then the stainless steel is cooled and stored. The device provided by the invention utilizes the waste heat temperature after the diameter reduction of the composite pipe, and directly carries out heat treatment after a small amount of heat supplement or heat preservation, thereby greatly reducing the energy consumption, improving the production efficiency, and simultaneously improving the intergranular corrosion resistance of the inner wall and meeting the requirement of the mechanical property of the outer wall.
Description
Technical Field
The invention relates to the field of manufacturing of bimetal composite pipes, in particular to an online solid solution device and method for a bimetal composite pipe, and particularly relates to a device and method for performing online solid solution treatment on a carbon steel/stainless steel bimetal composite pipe by fully utilizing rolling waste heat.
Background
The carbon steel/stainless steel bimetal composite pipe has excellent mechanical property of base carbon steel and excellent corrosion resistance of coating stainless steel, and has wide market prospect in petroleum and gas transportation. After the bimetal composite pipe is rolled and reduced in diameter, the intercrystalline corrosion resistance of the stainless steel coated with the bimetal composite pipe is reduced, and solution treatment is needed to improve the corrosion resistance of the composite pipe.
At present, the solution treatment of the stainless steel pipe mainly adopts an off-line mode: the hot rolled tube blank needs to be completely cooled to room temperature, then enters a heat treatment furnace to be heated to 1050-1150 ℃, is kept warm for a certain time, so that carbide and various alloy elements are completely and uniformly dissolved in austenite, and then is rapidly cooled. Because the temperature of the stainless steel pipe after reducing can reach about 750 ℃, if the solution treatment is carried out in an off-line mode, the energy consumption is large and the production period is long; in addition, because the heat treatment mechanisms of the two materials are inconsistent, the mechanical property of the base carbon steel cannot be considered when the furnace is heated.
Disclosure of Invention
In view of the above, the invention provides an online solid solution device for a bimetal composite pipe, and aims to overcome the defects of high energy consumption and long production period of the existing carbon steel/stainless steel bimetal composite pipe which is subjected to offline solid solution treatment.
The invention also aims to provide an online solid solution method for the bimetal composite pipe, which aims to solve the technical problem that the mechanical properties of the base layer carbon steel cannot be considered when the original carbon steel/stainless steel bimetal composite pipe is subjected to offline solid solution treatment.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the online solid solution device of bimetal clad pipe includes:
the moving mechanism is provided with a fixed part and a moving part, and after the moving part is matched with the fixed part, the moving part can realize feeding movement on the fixed part;
the rotating mechanism is provided with a plurality of supporting wheel assemblies with the rotating function, the supporting wheel assemblies are uniform in specification and are arranged at two sides of the bimetal composite pipe uniformly, the supporting wheel assemblies support the bimetal composite pipe in the rotating process and drive the bimetal composite pipe to rotate, and the lower part of each supporting wheel assembly is connected with the moving part;
the driving mechanism is arranged on the moving part and is used for driving the supporting wheel assembly and the bimetal composite pipe to rotate at a constant speed and simultaneously driving the moving part to perform feed motion on the fixed part;
the temperature-supplementing and solid-solution mechanism is provided with a temperature-supplementing heating head and a solid-solution heating power supply connected with the temperature-supplementing heating head, wherein the temperature-supplementing heating head is arranged inside the bimetal composite pipe and is used for supplementing temperature and solid-dissolving each part of the moving and rotating bimetal composite pipe coating; and
and the quick cooling mechanism is provided with a cooling water spray head and a cooling water circulating pump connected with the cooling water spray head, the cooling water spray head is also arranged in the bimetal composite pipe, and under the condition of keeping synchronous and sequential operation of the temperature compensation heating heads, each part of the moving and rotating bimetal composite pipe coating is quickly cooled.
Furthermore, the fixed part is a group of fixed slide rails which are symmetrically arranged, and the section of each fixed slide rail is I-shaped; the moving part includes: the device comprises a group of symmetrically arranged slide rail platforms and a connecting plate for connecting the two symmetrical slide rail platforms, wherein each slide rail platform is buckled on a corresponding fixed slide rail to realize the feeding motion on the corresponding fixed slide rail.
Preferably, the plurality of supporting wheel assemblies are designed into a mode that the supporting wheel assemblies are arranged in pairs in groups and are symmetrically arranged in the front and back direction on two sides of the bimetal composite pipe or a mode that the supporting wheel assemblies are arranged in groups in pairs in a staggered manner in the front and back direction on two sides of the bimetal composite pipe; each supporting wheel assembly comprises a supporting wheel, a rotating shaft and a base support, the supporting wheels are fixed on the base supports through the rotating shafts, and the base supports are fixed on the corresponding sliding rail platforms.
More preferably, the driving mechanism includes:
the chain wheel driving assembly is provided with a first variable frequency motor and a chain wheel driving unit, the first variable frequency motor is fixed on the connecting plate, the output end of the first variable frequency motor is connected with a transmission shaft arranged in the chain wheel driving unit, a plurality of driving chain wheels are uniformly arranged on the transmission shaft, and after the driving chain wheels are connected with driven chain wheels arranged on rotating shafts in the supporting wheel assembly through transmission chains, the driving chain wheels drive the transmission shaft to rotate through the driving force of the first variable frequency motor, so that a plurality of driving chain wheels and driven chain wheels are driven to rotate, and the constant-speed rotation of a supporting wheel and a bimetal composite pipe in a rotating mechanism is finally realized; and
and the rack driving assembly is provided with a second variable frequency motor and a helical rack, the second variable frequency motor is fixed on the side surface of the sliding rail platform, a helical gear is arranged on the output end of the second variable frequency motor, and the helical gear is meshed with the helical rack arranged on the side surface of the fixed sliding rail, so that the helical gear is driven to mesh with the helical rack by the driving force of the second variable frequency motor, and the feeding motion of the sliding rail platform on the fixed sliding rail is realized.
Preferably, the transmission shaft is fixed on the connecting plate through rolling bearing supports at two ends of the transmission shaft, and a driving sprocket arranged on the transmission shaft is fixed through key connection.
Furthermore, the quick cooling mechanism further comprises a double-layer cooling water copper rod, the double-layer cooling water copper rod is composed of a sleeve rod and a core rod, an insulating cable used for supplying power for the temperature compensation heating head is filled between the sleeve rod and the core rod, high-pressure cooling water is introduced into the core rod, the cooling water spray head is arranged at the end of the core rod, meanwhile, the inside of the core rod is communicated with a cooling water circulating pump, in addition, a plurality of spray holes are uniformly distributed on the cooling water spray head, and the hole walls of the spray holes and the pipe wall of the composite pipe coating form an angle of 45 degrees.
Preferably, the temperature-compensating heating head is arranged on the same side of the cooling water spray head and is positioned at one end of the double-layer cooling water copper rod, and meanwhile, the temperature-compensating heating head and the cooling water spray head are integrated to form a temperature-compensating cooling integrated piece, so that the heating and the cooling are synchronously carried out; in addition, the temperature-supplementing solid-solution mechanism further comprises a solid-solution heating control cabinet, and the solid-solution heating control cabinet is used for realizing the solid-solution treatment of the composite pipe by controlling the current of a solid-solution heating power supply.
Preferably, the temperature compensation cooling integrated component comprises a temperature compensation heating head positioned in the middle and cooling water nozzles positioned at two sides of the temperature compensation heating head; in addition, an included angle of 3-5 degrees is formed between the fixed sliding rail and the horizontal plane, and one end, close to the solid solution heating power supply, of the fixed sliding rail is higher than the other end of the fixed sliding rail; in addition, the quick cooling mechanism also comprises a cooling water collecting hopper arranged at the end part of the fixed slide rail.
The invention also provides an online solid solution method for the bimetal composite pipe, which adopts the online solid solution device for the bimetal composite pipe and comprises the following steps:
s1, heating and preserving heat of a bimetal composite pipe by a heating furnace, conveying the bimetal composite pipe by a roller way after discharging the bimetal composite pipe, and sequentially performing perforation, rolling and fixed reducing procedures, wherein the waste heat of the composite pipe after fixed reducing is kept at more than 750 degrees;
s2, passing the high-temperature composite tube after reducing through a steel pushing roller way, enabling the rolled tube span to enter a heat treatment span, and realizing the solution treatment of the cladding of the composite tube through an online solution treatment device of the bimetal composite tube, wherein the solution treatment comprises the following steps:
s21: when the composite pipe is fed to the rotating mechanism through the steel pushing roller way, the driving mechanism drives the moving mechanism to feed and the rotating mechanism to rotate, so that the composite pipe keeps horizontal feeding motion while rotating, a temperature compensation heating head in the temperature compensation solid solution mechanism is arranged at the initial end of solid solution treatment of a composite pipe coating, and meanwhile, the temperature of the composite pipe coating is heated to the solid solution temperature of 1100 ℃ by using the temperature compensation heating head on the premise of ensuring that the temperature of the outer wall of the composite pipe does not exceed 850 ℃;
s22: on the premise of ensuring that the temperature compensating heating head is positioned at the initial end of the cladding solution treatment of the composite tube, the driving mechanism continues to drive the feeding of the moving mechanism and drives the rotating mechanism to rotate, simultaneously, the supporting wheel assembly in the rotating mechanism is set to rotate at the constant speed of 20rad/min, and simultaneously, the moving part in the moving mechanism is set to advance at the feeding speed of 140-160 mm/min; meanwhile, a solid solution heating power supply in the temperature compensation solid solution mechanism and a cooling water spray head in the rapid cooling mechanism are synchronously started, solid solution heating current is set to be 100-120A, and under the condition that a closed magnetic field generated by the temperature compensation heating head is used for compensating the temperature of the cladding layer of the composite pipe, the rapid cooling mechanism sprays high-pressure cooling water to the cladding layer of the composite pipe in a high-pressure jet water cooling mode, the cooling strength is higher than 20 ℃/s, and the opening cooling temperature is required to be not lower than 800 ℃, so that the cladding layer temperature of the composite pipe is extremely cooled to 400 ℃ in extremely short time, and finally solid solution treatment is realized;
and S3, when the temperature compensation heating head is positioned at the end of the composite pipe coating solution treatment, closing the temperature compensation solution treatment mechanism, the rapid cooling mechanism and the driving mechanism, sequentially straightening and finishing the composite pipe subjected to solution treatment, and conveying the composite pipe to a cooling bed for cooling and storage.
Further, the step S21 specifically includes: conveying the composite tube subjected to the perforation, rolling and sizing diameter reduction processes to a rotating mechanism by a steel pushing roller way, driving a sliding rail platform to move forward by a second variable frequency motor fixed on one side, sleeving a temperature compensation heating head at one end of the composite tube, stopping moving forward when the temperature compensation heating head moves to the other end of the composite tube, completely sleeving the composite tube outside a double-layer cooling water copper rod, and positioning the temperature compensation heating head at the initial end of solution treatment of a coating of the composite tube; heating the cladding temperature of the composite tube to a solid solution temperature of 1100 ℃ in the process of advancing the temperature compensation heating head; the step S22 specifically includes: when the temperature compensation heating head moves to the initial end of the solution treatment, the cooling water circulating pump starts to work, and the cooling water head sprays high-pressure cooling water; meanwhile, a first variable frequency motor for controlling the rotation of the composite pipe is started, and a supporting wheel pair is driven by a connected transmission shaft to rotate at a constant speed of 20 rad/min; and simultaneously starting a solid solution heating power supply, setting the solid solution heating current to be 100-120A, and simultaneously starting a second variable frequency motor for controlling the feeding of the sliding rail platform, driving the sliding rail platform and driving the composite tube to move forward at the speed of 140-160mm/min, thereby cooperatively finishing the solid solution treatment of the composite tube.
The invention has the beneficial effects that:
under the condition of fully utilizing rolling waste heat, the invention combines the feed speed and the rotation speed of the online solid solution device and the parameter control under the solid solution heating current, directly carries out solid solution treatment on the premise of meeting the solid solution performance of the carbon steel/stainless steel bimetal composite pipe, and can separate out Cr 23 C 6 Completely and uniformly dissolved in austenite, improves the intergranular corrosion resistance of stainless steel and can also consider the carbon steel of the base layerExcellent mechanical property.
In addition, in the process of carrying out solution treatment by fully utilizing rolling waste heat, the invention can save the production energy consumption by more than 60 percent, simultaneously can greatly reduce the production emission, and can directly reduce the production period of the bimetal composite pipe product from the original more than 24 hours to within 2 hours, thereby not only improving the production efficiency, but also greatly shortening the production period of the product.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart of an online solid solution method for a bimetal composite pipe, which is related by the invention;
FIG. 2 is a front view of the on-line solution treatment device for the bimetal composite pipe of the present invention;
fig. 3 is a side view of the moving mechanism, the rotating mechanism and the driving mechanism in fig. 2 in an operating state after being combined;
FIG. 4 is a three-dimensional view of a chain wheel drive unit in the drive mechanism referred to in FIG. 3;
FIG. 5 is a three-dimensional view of the drive mechanism and rotary mechanism of FIG. 3 in combination in an operational state;
FIG. 6 is a three-dimensional view of the drive mechanism and the translation mechanism of FIG. 3 in combination in an operational state;
FIG. 7 is a view showing an observation pattern of the sample 1 under a microscope at a magnification of 10 times;
FIG. 8 is a view on a microscope at a magnification of 10 times of the sample 2;
FIG. 9 is an observation pattern of the sample 3 under a microscope at a magnification of 10 times;
fig. 10 is an observation pattern of the sample 4 under a microscope of 10 times magnification.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first" and "second" are used for descriptive purposes only and are not intended to indicate or imply relative importance, and moreover, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
At present, when the carbon steel/stainless steel bimetal composite pipe is subjected to off-line solution treatment, because the hot-rolled pipe is cooled to room temperature and then heated to 1050-1150 ℃, the composite pipe with the hot-rolled temperature reaching about 750 ℃ needs to be cooled to the room temperature, a large amount of energy is consumed, and simultaneously, the carbon steel and the stainless steel cannot well take account of the mechanical property of the base carbon steel when being heated in a furnace due to the fact that the heat treatment system is inconsistent.
Therefore, the inventor considers that a new solution treatment mode is adopted, the temperature of the composite pipe after hot rolling can be effectively utilized, and the bonding performance of the base carbon steel and the coating stainless steel is ensured on the basis of reducing energy consumption. The new solution treatment mode is that the composite pipe directly coming out of the sizing mill directly enters an online solution treatment device for solution treatment, which is called online solution treatment.
In the process of solution treatment, the core technology is to add Cr carbide 23 C 6 And various alloying elements are completely and uniformly dissolved in austenite, and then are rapidly cooled to complete the solution treatment.
However, on the premise of completely and uniformly dissolving carbide and various alloy elements in austenite, the mechanical properties of the composite tube base layer and the clad layer can be ensured, so that the cooperative matching between the cooling process and the heating process must be considered, the problem of controlling the cooperative matching between the cooling process and the heating process is a problem, and the problem of completely and uniformly dissolving carbide and various alloy elements in austenite is also a problem.
In order to solve the series of problems described above, the inventors of the present application found that: the carbide of the austenitic stainless steel is dissolved in solid and then precipitated at the temperature of 450-850 ℃, and is more precipitated particularly at the temperature of 600-700 ℃.
Therefore, during solution treatment, the temperature interval, also called sensitization temperature interval, must be crossed in a very short time to improve the intergranular corrosion resistance of the stainless steel.
Since this temperature interval is to be crossed in a very short time, it is necessary to use a rapid cooling mechanism 5, which is one of them.
The temperature of the composite pipe after hot rolling is about 750 ℃, and the solid solution temperature of the composite pipe cannot reach 1100 ℃, so a temperature-compensating solid solution mechanism 4 is needed, and the temperature-compensating solid solution mechanism is the second one.
Meanwhile, during solution treatment, the whole stainless steel coating in the composite pipe is subjected to solution treatment, and then the whole composite pipe needs to be moved by the moving mechanism 1, and heating, temperature compensation and rapid cooling are performed in the moving process.
In the solution treatment, in order to perform the solution treatment on each part of the stainless steel coating layer on the inner layer of the composite pipe, the rotating mechanism 2 is adopted to rotate the whole composite pipe, and heating and rapid cooling are performed during the rotation, which is four times.
Since the moving mechanism 1 is to perform the feeding motion and the rotating mechanism 2 is to perform the rotation, the driving mechanism 3 is required, which is five.
Therefore, through the above analysis, the main technical structure of the method and the device for online solid solution of the bimetal composite tube of the present application needs to include five major parts, namely, the moving mechanism 1, the rotating mechanism 2, the driving mechanism 3, the temperature-supplementing solid solution mechanism 4 and the rapid cooling mechanism 5.
In the online solid solution method and the online solid solution device for the bimetal composite pipe, the open cooling temperature of the inner layer of the composite pipe is required to be not lower than 800 ℃, and the final cooling temperature is not higher than 400 ℃ in order to reduce the retention time of the composite pipe in a sensitization temperature interval and reduce the probability of intercrystalline corrosion.
In addition, on the premise that the present invention has five major parts, namely, the moving mechanism 1, the rotating mechanism 2, the driving mechanism 3, the temperature-supplementing solid-solution mechanism 4 and the rapid cooling mechanism 5, how to match the synergistic action of the feeding speed of the moving mechanism 1, the angular speed of the rotating mechanism 2, the temperature-supplementing temperature of the temperature-supplementing solid-solution mechanism 4 and the cooling strength of the rapid cooling mechanism 5, the inventor of the present application has designed a series of experiments to determine the synergistic mechanism among the above parameters. According to the invention, a thermocouple thermometer and an infrared thermometer are used for measuring the temperature of the inner surface and the outer surface of the composite pipe, the mechanical property and the corrosion resistance of the composite pipe under different solid solution parameters are tested, and finally a complete process parameter interval is given, namely the speed of a rotating mechanism 2 is 20rad/min, the feeding speed of a moving mechanism 1 is 140-160mm/min, and the heating current of a temperature-supplementing solid solution mechanism 4 is set to be 100-120A, so that the intergranular corrosion resistance of the stainless steel wall on the inner wall is improved, and the mechanical property requirement of the carbon steel on the outer wall is also considered.
The following is a specific process of an experiment required for determining the inter-parameter cooperation mechanism:
because the parameters influencing the solid solution effect are mainly the rotating speed, the feeding speed and the solid solution current, in order to obtain the optimal parameter range, the inventor of the application designs the following experiment, five values are selected for each of three influencing factors, and because 125 groups of experiments are needed by adopting a comprehensive experiment method, the experiment amount is large, 25 groups of experiments are designed by adopting an orthogonal experiment method, and in the experiments, a plurality of groups of comparison experiments are carried out by taking the rotating speed of 10-30rad/min, the feeding speed of 130-170mm/min and the current of 90-130A. The experimental data are shown in table 1 below.
TABLE 1 orthogonal experimental data sheet
The experiment shows that when the rotating speed is less than 20rad/min, the feeding speed is less than 140mm/min or the current is more than 120A, the temperature of the base carbon steel exceeds 850 ℃, and the base carbon steel is over-burnt, so that the brittleness is increased, the toughness is insufficient, and the mechanical property requirement of the composite pipe cannot be met; when the rotating speed is more than 20rad/min, the feeding speed is more than 160mm/min or the current is less than 100A, the temperature of the coated stainless steel cannot reach 1050 ℃, at the moment, carbide cannot be completely dissolved, and a small amount of sigma phase is precipitated at the boundary of ferrite and austenite, so that the intergranular corrosion resistance of the composite tube coating is weakened.
Therefore, the technological parameters of the application are that the speed of the rotating mechanism is 20rad/min, the feeding speed of the moving mechanism is 140-160mm/min, and the heating current of the temperature-compensating solid solution mechanism is set to be 100-120A.
In view of the above, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 2-6, the online solution treatment device for the bimetal composite pipe comprises: the device comprises a moving mechanism 1, a rotating mechanism 2, a driving mechanism 3, a temperature-supplementing solid-solution mechanism 4 and a quick cooling mechanism 5.
As shown in fig. 2, 3 and 6, in the present invention, the moving mechanism 1 has a fixed part 11 and a moving part 12, and after the moving part 12 is matched with the fixed part 11, the moving part 12 can realize the feeding movement on the fixed part 11.
In this embodiment, the fixing portion 11 is a set of symmetrically arranged fixing slide rails, and a cross section of each fixing slide rail is i-shaped; the moving section 12 includes: the feeding mechanism comprises a group of symmetrically arranged slide rail platforms 121 and a connecting plate 122 for connecting the two symmetrical slide rail platforms 121, wherein each slide rail platform 121 is buckled on a corresponding fixed slide rail to realize the feeding motion on the corresponding fixed slide rail.
As shown in fig. 2, 3 and 5, in the present invention, the rotating mechanism 2 has a plurality of supporting wheel assemblies 21 with uniform specification and uniform arrangement, which are placed on two sides of the bimetal composite pipe and have a rotating function, the supporting wheel assemblies 21 support the bimetal composite pipe and drive the bimetal composite pipe to rotate during the rotation, and the lower part of the supporting wheel assemblies 21 is connected to the moving part 12.
In the present embodiment, the plurality of supporting wheel assemblies 21 are designed to be arranged in pairs and symmetrically arranged in front and back on two sides of the bimetal composite pipe, and also designed to be arranged in pairs and staggered in front and back on two sides of the bimetal composite pipe. In the embodiment, a mode that two double metal composite pipes are arranged in a group and symmetrically arranged in front and back is preferably selected and arranged on two sides of the double metal composite pipe.
In this embodiment, each of the supporting wheel assemblies 21 includes a supporting wheel 211, a rotating shaft 212, and a base bracket 213, the supporting wheel 211 is fixed on the base bracket 213 through the rotating shaft 212, and the base bracket 213 is fixed on the corresponding slide rail platform 121.
As shown in fig. 2 to 6, in the present invention, a driving mechanism 3 is provided on the moving part 12 for driving the supporting wheel assembly 21 and the bimetal composite pipe to rotate at a constant speed and also driving the moving part 12 to perform a feeding motion on the fixed part 11.
In the present invention, the drive mechanism 3 includes: a sprocket drive assembly 31 and a rack drive assembly 32. The sprocket drive assembly 31 is mainly used for driving the rotation of the rotation mechanism 2, and the rack drive assembly 32 is mainly used for driving the feeding of the moving mechanism 1.
As shown in fig. 5, in the present embodiment, the sprocket driving assembly 31 includes a first inverter motor 311 and a sprocket driving unit 312, the first inverter motor 311 is fixed on the connecting plate 122, an output end of the first inverter motor 311 is connected to a transmission shaft 313 provided in the sprocket driving unit 312, a plurality of driving sprockets 314 are uniformly provided on the transmission shaft 313, and after the driving sprockets 314 are connected to the driven sprocket 214 provided on the rotating shaft 212 in the supporting wheel assembly 21 through a transmission chain 315, the driving force of the first inverter motor 311 drives the transmission shaft 313 to rotate, so as to drive the plurality of driving sprockets 314 and the driven sprocket 214 to rotate, thereby finally realizing the constant speed rotation of the supporting wheel 211 and the bimetal composite pipe in the rotating mechanism 2.
On the basis, the transmission shaft 313 is fixed on the connecting plate 122 through rolling bearing supports 317 at two ends of the transmission shaft 313, and a driving sprocket 314 arranged on the transmission shaft 313 is connected and fixed through a key 316.
As shown in fig. 6, in this embodiment, the rack driving assembly 32 has a second inverter motor 321 and a helical rack 322, the second inverter motor 321 is fixed on a side surface of the slide rail platform 121, and an output end of the second inverter motor 321 is provided with a helical gear 323, the helical gear 323 is engaged with the helical rack 322 arranged on the side surface of the fixed slide rail, so that the driving force of the second inverter motor 321 drives the helical gear 323 to engage with the helical rack 322, thereby implementing the feeding motion of the slide rail platform 121 on the fixed slide rail.
As shown in fig. 2, in the present invention, the temperature-compensating and solid-solution mechanism 4 includes a temperature-compensating heating head 41, a solid-solution heating power supply 42 connected to the temperature-compensating heating head 41, and a solid-solution heating control cabinet 43, wherein the temperature-compensating heating head 41 is disposed inside the bimetal composite tube, and performs temperature-compensating and solid-solution treatment on each part of the moving and rotating bimetal composite tube coating, and the solid-solution heating control cabinet 43 performs solid-solution treatment on the inner layer of the composite tube by controlling the current of the solid-solution heating power supply 42 during the temperature-compensating and solid-solution treatment.
As shown in fig. 2, in the present invention, the rapid cooling mechanism 5 has a cooling water spray 51 and a cooling water circulation pump 52 connected to the cooling water spray 51, and a double-layered cooling water copper bar 53, and the cooling water spray 51 is also disposed inside the bimetal composite pipe, and rapidly cools each part of the bimetal composite pipe cladding which moves and rotates while maintaining the synchronous and sequential operation with the temperature-compensating heating head 41.
In this embodiment, the double-layer cooling water copper rod 53 is composed of a loop bar 531 and a core bar 532, an insulated cable for supplying power to the temperature compensation heating head 41 is filled between the loop bar 531 and the core bar 532, high-pressure cooling water is introduced into the core bar 532, a cooling water spray head 51 is arranged at the end of the core bar 532, the core bar 532 is also communicated with a cooling water circulating pump 52, in addition, a plurality of spray holes are uniformly arranged on the cooling water spray head 51, and the hole walls of the spray holes and the pipe wall of the composite pipe coating form an angle of 45 °.
In addition, in the present embodiment, the rapid cooling mechanism 5 further includes a cooling water collecting bucket 54 for collecting the sprayed cooling water, as shown in fig. 2.
Meanwhile, in order to collect and discharge cooling water more conveniently and smoothly, an included angle of 3-5 degrees is designed between the fixed slide rail and the horizontal plane, and one end of the fixed slide rail, which is close to the solid solution heating power supply 42, is higher than the other end of the fixed slide rail, so that the structural design of the included angle is achieved.
As shown in fig. 2, on the basis of the above, the temperature-compensating heating head 41 is disposed on the same side of the cooling water spray head 51 and is located at one end of the double-layer cooling water copper rod 53, and the temperature-compensating heating head 41 and the cooling water spray head 51 are integrated to form a temperature-compensating cooling integrated component, so as to realize the synchronous heating and cooling.
As an optimization of the temperature compensating cooling integrated part, in this example, the temperature compensating cooling integrated part is designed as a temperature compensating heating head 41 located at the middle position and cooling water spray heads 51 located at both sides of the temperature compensating heating head 41.
The above description is a detailed description of the online solid solution device for the bimetal composite pipe of carbon steel/stainless steel according to the present invention.
The online solution method of the bimetal composite pipe according to the invention will be described in detail with reference to fig. 1.
As shown in figure 1, the invention provides an online solid solution method for a bimetal composite pipe, which adopts the online solid solution device for the bimetal composite pipe, and comprises the following steps:
s1, heating and preserving heat of a bimetal composite pipe by a heating furnace, conveying the bimetal composite pipe by a roller way after discharging the bimetal composite pipe, and sequentially performing perforation, rolling and fixed reducing procedures, wherein the waste heat of the composite pipe after fixed reducing is kept at more than 750 degrees;
s2, passing the high-temperature composite tube after reducing through a steel pushing roller way, enabling the rolled tube span to enter a heat treatment span, and realizing the solution treatment of the cladding of the composite tube through an online solution treatment device of the bimetal composite tube, wherein the solution treatment comprises the following steps:
s21: when the composite pipe is fed to the rotating mechanism 2 through the steel pushing roller way, the driving mechanism 3 drives the moving mechanism 1 to feed and the rotating mechanism 2 to rotate, so that the composite pipe keeps horizontal feeding movement while rotating, the temperature-compensating heating head 41 in the temperature-compensating solid solution mechanism 4 is arranged at the initial end of the solid solution treatment of the composite pipe coating, and meanwhile, the temperature-compensating heating head 41 is utilized to heat the composite pipe coating to the solid solution temperature of 1100 ℃ on the premise of ensuring that the temperature of the outer wall of the composite pipe does not exceed 850 ℃;
s22: on the premise of ensuring that the temperature compensating heating head 41 is positioned at the initial end of the cladding solution treatment of the composite tube, the driving mechanism 3 continues to drive the moving mechanism 1 to feed and the rotating mechanism 2 to rotate, and simultaneously the supporting wheel assembly 21 in the rotating mechanism 2 is set to rotate at the constant speed of 20rad/min, and the moving part 12 in the moving mechanism 1 is set to advance at the feeding speed of 140-160 mm/min; meanwhile, a solid solution heating power supply 42 in the temperature compensation solid solution mechanism 4 and a cooling water spray head 51 in the rapid cooling mechanism 5 are synchronously started, and solid solution heating current is set to be 100-120A, at the moment, under the condition that a closed magnetic field generated by the temperature compensation heating head 41 compensates the temperature of the cladding layer of the composite pipe, the rapid cooling mechanism 5 sprays high-pressure cooling water to the cladding layer of the composite pipe in a high-pressure jet water cooling mode, the cooling strength is higher than 20 ℃/s, and the cooling temperature is required to be not lower than 800 ℃, so that the cladding layer temperature of the composite pipe is extremely cooled to 400 ℃ in extremely short time, and finally solid solution treatment is realized;
and S3, when the temperature compensation heating head 41 is positioned at the end of the composite pipe coating solution treatment, closing the temperature compensation solution treatment mechanism 4, the rapid cooling mechanism 5 and the driving mechanism 3, sequentially straightening and finishing the composite pipe subjected to solution treatment, and conveying the composite pipe to a cooling bed for cooling and storage.
In the above method and in combination with the structure of the solid solution apparatus, the step S21 specifically includes: conveying the composite tube subjected to the perforation, rolling and fixed diameter reduction processes to a rotating mechanism 2 by a steel pushing roller way, driving the sliding rail platform 121 to advance by a second variable frequency motor 321 fixed on one side, sleeving a temperature compensation heating head 41 at one end of the composite tube, stopping advancing when the temperature compensation heating head 41 advances to the other end of the composite tube, completely sleeving the composite tube outside a double-layer cooling water copper rod 53, and enabling the temperature compensation heating head 41 to be located at the initial end of solid solution treatment of a cladding layer of the composite tube; during the process of the temperature compensation heating head 41, the cladding temperature of the composite tube is heated to the solid solution temperature of 1100 ℃.
In the above method and in combination with the structure of the solid solution apparatus, the step S22 specifically includes: when the temperature-compensating heating head 41 moves to the initial end of the solution treatment, the cooling water circulating pump 52 starts to work, and the cooling water spray head 51 sprays high-pressure cooling water; meanwhile, a first variable frequency motor 311 for controlling the rotation of the composite pipe is started, and a transmission shaft 313 connected with the first variable frequency motor drives the supporting wheel 211 pair to rotate at a constant speed of 20 rad/min; and simultaneously starting the solid solution heating power supply 42, setting the solid solution heating current to be 100-120A, simultaneously starting the second variable frequency motor 321 for controlling the feeding of the sliding rail platform 121, driving the sliding rail platform 121 and driving the composite tube to advance at the speed of 140-160mm/min, and cooperatively finishing the solid solution treatment of the composite tube.
When the solution treatment is actually performed by the method, the temperature of the composite tube itself is reduced, so that the temperature of the tail end is reduced, at this time, the rotating speed of the second variable frequency motor 321 should be changed, the feeding speed of the slide rail platform 121 is reduced, and the temperature compensation time is prolonged to reach the predetermined solution temperature, so that the solution treatment on the composite tube can be completed by the synergistic effect of the rotating speed of the composite tube, the feeding speed of the composite tube and the temperature of the temperature compensation heating head 41 on the inner layer of the composite tube.
The above solution method will be used to perform a specific practical operation on the bimetal clad pipe blank of the outer layer carbon steel 20/the inner layer stainless steel 316L.
Example 1
1) Selecting a bimetal composite pipe blank of 20L carbon steel on the outer layer and 316L stainless steel on the inner layer, and producing a composite pipe after multiple working procedures such as piercing and rolling, wherein the size parameters of the composite pipe are 159mm of outer diameter, 139mm of inner diameter and 800mm of length of the composite pipe, the wall thickness of the carbon steel on the outer layer of the composite pipe is 7.5mm, and the wall thickness of the stainless steel on the inner layer is 2.5mm.
2) According to the size of the composite pipe selected by the example, the temperature compensating heating head 41 is selected in a matching way, and the size of the temperature compensating heating head 41 is 128mm in diameter and 58mm in width.
3) The composite pipe is fed onto the rotating mechanism 2 through the steel pushing mechanism, the rotating speed of the composite pipe is set to be 20rad/min, the feeding speed of the sliding rail platform 121 is set to be 140mm/min, and the inner wall of the composite pipe is heated to 1100 ℃ on the premise that the temperature of the outer wall of the composite pipe is not more than 850 ℃.
4) The temperature-compensating heating head 41 starts to be electrified and simultaneously sets the solid solution heating current to be 100A, the high-pressure jet cooling water spray head 51 is started, the cooling intensity of the cooling water is 20 ℃/s, and then the inner wall temperature of the composite tube is cooled to 400 ℃ extremely by matching the tube rotating speed and the feeding speed, so that the composite tube 1 of the embodiment is obtained.
Example 2
1) Selecting a bimetal composite pipe blank of 20L carbon steel on the outer layer and 316L stainless steel on the inner layer, and producing a composite pipe after multiple working procedures such as piercing and rolling, wherein the size parameters of the composite pipe are 159mm of outer diameter, 139mm of inner diameter and 800mm of length of the composite pipe, the wall thickness of the carbon steel on the outer layer of the composite pipe is 7.5mm, and the wall thickness of the stainless steel on the inner layer is 2.5mm.
2) According to the size of the composite pipe selected by the example, the temperature compensating heating head 41 is selected in a matching way, and the size of the temperature compensating heating head 41 is 128mm in diameter and 58mm in width.
3) The composite pipe is fed onto the rotating mechanism 2 through the steel pushing mechanism, the rotating speed of the composite pipe is set to be 20rad/min, the feeding speed of the sliding rail platform 121 is set to be 160mm/min, and the inner wall of the composite pipe is heated to 1100 ℃ on the premise that the temperature of the outer wall of the composite pipe is not higher than 850 ℃.
4) And (3) setting the solid solution heating current to be 120A while the temperature compensation heating head 41 starts to be electrified, starting the high-pressure jet cooling water spray head 51, and matching the pipe rotating speed and the feeding speed to ensure that the temperature of the inner wall of the composite pipe is extremely cooled to 400 ℃ to obtain the composite pipe 2 of the embodiment.
The example composite pipes 1 and 2 obtained as described above were subjected to a performance test. The testing method selects a corrosion austenite of GB/T4334-2020 metal and alloy and a ferrite-austenite (duplex) stainless steel intercrystalline corrosion testing method, samples are respectively taken from the composite tube 1 in the embodiment and the composite tube 2 in the embodiment in the testing process, the sampling standard refers to GB/T4334-2020, finally, a sample 1 and a sample 2 are obtained from the composite tube 1 in the embodiment, and a sample 3 and a sample 4 are obtained from the composite tube 2 in the embodiment.
And (3) performing corrosion bending on the samples 1-4 by adopting an E method, observing the corroded and bent samples 1-4 under a microscope with the magnification of 10 times, wherein the surfaces of the samples 1-4 are all intact and have no cracks, namely, no intergranular corrosion tendency appears. The performance test result shows that the online solid solution method can still obtain excellent corrosion resistance under the conditions of saving the production cost and shortening the production period. As shown in fig. 7-10.
The mechanical property test is carried out on the composite pipe in the embodiment 1, the test method selects a GB/T6396-2008 composite steel plate mechanical and process property test method, a GB/T228.1-2010 metal material tensile test and a GB/T230.1-2018 metal material Rockwell hardness test, all of which meet the performance requirements, and the test results are shown in the following table 2.
TABLE 2 mechanical property testing table
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The online solid solution method for the bimetal composite pipe of the carbon steel 20/austenitic stainless steel 316L utilizes an online solid solution device for the bimetal composite pipe, and is characterized by comprising the following steps of:
s1, heating and preserving heat of a bimetal composite pipe by a heating furnace, conveying the bimetal composite pipe by a roller way after discharging the bimetal composite pipe, and sequentially performing perforation, rolling and fixed reducing procedures, wherein the waste heat of the composite pipe after fixed reducing is kept at more than 750 degrees;
s2, passing the high-temperature composite tube after reducing through a steel pushing roller way, enabling the rolled tube span to enter a heat treatment span, and realizing the solution treatment of the cladding of the composite tube through an online solution treatment device of the bimetal composite tube, wherein the solution treatment comprises the following steps:
s21: when the composite pipe is fed to the rotating mechanism through the steel pushing roller way, the driving mechanism drives the moving mechanism to feed and the rotating mechanism to rotate, so that the composite pipe keeps horizontal feeding movement while rotating, a temperature compensation heating head in the temperature compensation and solution treatment mechanism is arranged at the initial end of solution treatment of a composite pipe coating, and meanwhile, the temperature compensation heating head is utilized to heat the composite pipe coating to the solution treatment temperature of 1100 ℃ on the premise of ensuring that the temperature of the outer wall of the composite pipe does not exceed 850 ℃;
s22: on the premise of ensuring that the temperature compensating heating head is positioned at the initial end of the cladding solution treatment of the composite tube, the driving mechanism continues to drive the feeding of the moving mechanism and drives the rotating mechanism to rotate, simultaneously, the supporting wheel assembly in the rotating mechanism is set to rotate at the constant speed of 20rad/min, and simultaneously, the moving part in the moving mechanism is set to advance at the feeding speed of 140-160 mm/min; meanwhile, a solid solution heating power supply in the temperature compensation solid solution mechanism and a cooling water spray head in the rapid cooling mechanism are synchronously started, solid solution heating current is set to be 100-120A, and under the condition that a closed magnetic field generated by the temperature compensation heating head is used for compensating the temperature of the cladding layer of the composite pipe, the rapid cooling mechanism sprays high-pressure cooling water to the cladding layer of the composite pipe in a high-pressure jet water cooling mode, the cooling strength is higher than 20 ℃/s, and the opening cooling temperature is required to be not lower than 800 ℃, so that the cladding layer temperature of the composite pipe is extremely cooled to 400 ℃ in extremely short time, and finally solid solution treatment is realized;
s3, when the temperature compensation heating head is positioned at the finishing end of the composite pipe coating solution treatment, closing the temperature compensation solution treatment mechanism, the rapid cooling mechanism and the driving mechanism, and conveying the composite pipe subjected to solution treatment to a cooling bed for cooling and storage after sequentially carrying out straightening and finishing processes;
wherein, online solid solution device of bimetal composite pipe includes:
the moving mechanism is provided with a fixed part and a moving part, and after the moving part is matched with the fixed part, the moving part can realize feeding movement on the fixed part;
the rotating mechanism is provided with a plurality of supporting wheel assemblies with the rotating function, the supporting wheel assemblies are uniform in specification and are uniformly arranged and are arranged on two sides of the bimetal composite pipe, the supporting wheel assemblies support the bimetal composite pipe in the rotating process and drive the bimetal composite pipe to rotate, and the lower part of each supporting wheel assembly is connected with the moving part;
the driving mechanism is arranged on the moving part and is used for driving the supporting wheel assembly and the bimetal composite pipe to rotate at a constant speed and simultaneously driving the moving part to perform feed motion on the fixed part;
the temperature supplementing and solid dissolving mechanism is provided with a temperature supplementing heating head and a solid dissolving heating power supply connected with the temperature supplementing heating head, wherein the temperature supplementing heating head is arranged inside the bimetal composite pipe and is used for supplementing temperature and solid dissolving each part of the moving and rotating bimetal composite pipe coating;
and the quick cooling mechanism is provided with a cooling water spray head and a cooling water circulating pump connected with the cooling water spray head, the cooling water spray head is also arranged in the bimetal composite pipe, and under the condition of keeping synchronous and same-sequence operation with the temperature supplementing heating head, each part of the moving and rotating bimetal composite pipe coating is quickly cooled.
2. The in-line solution treatment method of bimetal composite tube of carbon steel 20/austenitic stainless steel 316L according to claim 1, characterized in that,
the step S21 specifically includes: conveying the composite pipe subjected to the punching, rolling and fixed reducing processes to a rotating mechanism by a steel pushing roller way, driving a sliding rail platform to advance by a second variable frequency motor fixed on one side, sleeving a temperature compensation heating head at one end of the composite pipe, stopping advancing when the temperature compensation heating head advances to the other end of the composite pipe, completely sleeving the composite pipe outside a double-layer cooling water copper rod, and positioning the temperature compensation heating head at the initial end of solution treatment of a coating of the composite pipe; heating the cladding temperature of the composite tube to a solid solution temperature of 1100 ℃ in the process of advancing the temperature compensation heating head;
the step S22 specifically includes: when the temperature compensation heating head moves to the initial end of the solution treatment, the cooling water circulating pump starts to work, and the cooling water head sprays high-pressure cooling water; meanwhile, a first variable frequency motor for controlling the rotation of the composite pipe is started, and a supporting wheel pair is driven by a connected transmission shaft to rotate at a constant speed of 20 rad/min; and simultaneously starting a solid solution heating power supply, setting the solid solution heating current to be 100-120A, and simultaneously starting a second variable frequency motor for controlling the feeding of the sliding rail platform, driving the sliding rail platform and driving the composite tube to move forward at the speed of 140-160mm/min, thereby cooperatively finishing the solid solution treatment of the composite tube.
3. The online solid solution method for the bimetal composite tube of the carbon steel 20/austenitic stainless steel 316L according to the claim 1, wherein the fixed part is a set of fixed slide rails which are symmetrically arranged, and the section of each fixed slide rail is in an I shape; the moving part includes: the device comprises a group of symmetrically arranged slide rail platforms and a connecting plate for connecting the two symmetrical slide rail platforms, wherein each slide rail platform is buckled on a corresponding fixed slide rail to realize the feeding motion on the corresponding fixed slide rail.
4. The method for in-line solution treatment of a bimetal composite tube of carbon steel 20/austenitic stainless steel 316L according to claim 3, wherein the plurality of supporting wheel assemblies are designed in a pair-by-pair manner and symmetrically arranged in front and back on both sides of the bimetal composite tube or in a pair-by-pair manner and staggered in front and back on both sides of the bimetal composite tube; each supporting wheel assembly comprises a supporting wheel, a rotating shaft and a base support, the supporting wheels are fixed on the base supports through the rotating shafts, and the base supports are fixed on the corresponding sliding rail platforms.
5. The carbon steel 20/austenitic stainless steel 316L bimetallic composite tube in-line solutionizing method of claim 4, wherein the drive mechanism comprises:
the chain wheel driving assembly is provided with a first variable frequency motor and a chain wheel driving unit, the first variable frequency motor is fixed on the connecting plate, the output end of the first variable frequency motor is connected with a transmission shaft arranged in the chain wheel driving unit, a plurality of driving chain wheels are uniformly arranged on the transmission shaft, and after the driving chain wheels are connected with driven chain wheels arranged on rotating shafts in the supporting wheel assembly through transmission chains, the driving chain wheels drive the transmission shaft to rotate through the driving force of the first variable frequency motor, so that a plurality of driving chain wheels and driven chain wheels are driven to rotate, and the constant-speed rotation of a supporting wheel and a bimetal composite pipe in a rotating mechanism is finally realized; and
and the rack driving assembly is provided with a second variable frequency motor and a helical rack, the second variable frequency motor is fixed on the side surface of the sliding rail platform, a helical gear is arranged on the output end of the second variable frequency motor, and the helical gear is meshed with the helical rack arranged on the side surface of the fixed sliding rail, so that the helical gear is driven to mesh with the helical rack by the driving force of the second variable frequency motor, and the feeding motion of the sliding rail platform on the fixed sliding rail is realized.
6. The on-line solid solution method for the bimetal composite tube of the carbon steel 20/austenitic stainless steel 316L according to claim 5, wherein the transmission shaft is fixed on the connecting plate through rolling bearing supports at two ends of the transmission shaft, and a driving sprocket arranged on the transmission shaft is fixed through key connection.
7. The online solid solution method for the bimetal composite tube of the carbon steel 20/austenitic stainless steel 316L according to claim 6, characterized in that the rapid cooling mechanism further comprises a double-layer cooling water copper rod, the double-layer cooling water copper rod is composed of a loop rod and a core rod, an insulating cable for supplying power to the temperature compensation heating head is filled between the loop rod and the core rod, high-pressure cooling water is introduced into the core rod, a cooling water spray head is arranged at the end part of the core rod, the interior of the core rod is communicated with a cooling water circulating pump, in addition, a plurality of spray holes are uniformly arranged on the cooling water spray head, and the hole walls of the spray holes and the tube wall of the cladding of the composite tube form an angle of 45 degrees.
8. The online solid solution method for the bimetal composite tube of the carbon steel 20/austenitic stainless steel 316L according to claim 7, wherein the temperature compensating heating head is arranged at the same side of the cooling water spray head and at one end of the double-layer cooling water copper rod, and the temperature compensating heating head and the cooling water spray head are integrated into a whole to form a temperature compensating cooling integrated piece, so that the heating and the cooling are synchronously carried out; in addition, the temperature-supplementing solid solution mechanism further comprises a solid solution heating control cabinet, and the solid solution heating control cabinet is used for realizing the solid solution treatment of the composite pipe by controlling the current of the solid solution heating power supply.
9. The online solid solution method for the bimetal composite tube of the carbon steel 20/austenitic stainless steel 316L according to claim 8, wherein the temperature supplementing cooling integrated assembly comprises a temperature supplementing heating head located at the middle position and cooling water nozzles located at two sides of the temperature supplementing heating head; in addition, an included angle of 3-5 degrees is formed between the fixed slide rail and the horizontal plane, and one end, close to the solid solution heating power supply, of the fixed slide rail is higher than the other end of the fixed slide rail; in addition, the quick cooling mechanism also comprises a cooling water collecting hopper arranged at the end part of the fixed slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211230790.3A CN115287433B (en) | 2022-10-08 | 2022-10-08 | Online solid solution device and method for bimetal composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211230790.3A CN115287433B (en) | 2022-10-08 | 2022-10-08 | Online solid solution device and method for bimetal composite pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115287433A CN115287433A (en) | 2022-11-04 |
| CN115287433B true CN115287433B (en) | 2022-12-09 |
Family
ID=83819438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211230790.3A Active CN115287433B (en) | 2022-10-08 | 2022-10-08 | Online solid solution device and method for bimetal composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115287433B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961134B (en) * | 2022-12-28 | 2023-07-18 | 浙江华顺炉业有限公司 | Continuous bar heat treatment production line |
| CN116213574B (en) * | 2023-03-06 | 2024-01-23 | 江苏杰润管业科技有限公司 | Online solid solution device and method for bimetal composite pipe |
| CN116329317B (en) * | 2023-05-11 | 2023-07-21 | 太原科技大学 | Bimetal composite seamless pipe and rolling process |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835578B2 (en) * | 1979-05-28 | 1983-08-03 | 日本精工株式会社 | Rotary hardening equipment for annular bodies |
| JPH0794690B2 (en) * | 1987-12-09 | 1995-10-11 | 株式会社クボタ | Heat treatment method for clad steel pipe |
| CN103305678B (en) * | 2013-06-20 | 2014-08-27 | 鞍山泰源实业有限公司 | Steel pipe inner wall hardening and quenching device and steel pipe inner wall hardening and quenching method |
| CN203546086U (en) * | 2013-10-24 | 2014-04-16 | 新昌县楷翔机电有限公司 | Walking mechanism of high-frequency quenching device |
| JP6244569B2 (en) * | 2014-02-28 | 2017-12-13 | 日立オートモティブシステムズ株式会社 | Method for manufacturing surface processed parts and apparatus for manufacturing surface processed parts |
| CN105618491B (en) * | 2014-11-28 | 2018-08-10 | 宝山钢铁股份有限公司 | A kind of Plate Production method, apparatus and control system for steel plate on-line solution |
| WO2017050227A1 (en) * | 2015-09-24 | 2017-03-30 | 宝山钢铁股份有限公司 | Seamless steel tube with high strength and toughness and manufacturing method therefor |
| CN110181230B (en) * | 2019-05-28 | 2022-01-04 | 中国石油天然气集团有限公司 | Bimetal metallurgy composite pipe and preparation method thereof |
| CN111396646A (en) * | 2020-04-01 | 2020-07-10 | 江苏福源泰管业有限公司 | Bimetal wear-resistant seamless composite steel pipe and forming process thereof |
| CN212533064U (en) * | 2020-05-14 | 2021-02-12 | 浙江天骄轴承制造有限公司 | Quenching component of high-frequency quenching machine |
| CN112077322B (en) * | 2020-08-27 | 2021-06-11 | 燕山大学 | Device for spinning semi-solid metal powder to form bimetal composite pipe on outer wall of steel pipe |
| CN213232422U (en) * | 2020-09-28 | 2021-05-18 | 二重（德阳）重型装备有限公司 | Large-scale supporting roll cold quenching device |
| CN112267011B (en) * | 2020-10-23 | 2021-10-19 | 东北大学 | Multifunctional stainless steel plate solid solution heat treatment process and device |
| CN112453084B (en) * | 2020-11-04 | 2023-03-21 | 太原科技大学 | Preparation method of multilayer metal composite pipe |
| CN214422703U (en) * | 2020-12-23 | 2021-10-19 | 上海天阳钢管有限公司 | Bimetal composite pipe heat treatment device |
| CN112877565B (en) * | 2021-01-12 | 2022-05-20 | 鞍钢股份有限公司 | Copper-steel solid-liquid bimetal composite material and preparation method thereof |
| CN113355496B (en) * | 2021-06-04 | 2022-09-13 | 东北大学 | On-line solution annealing process for rolling waste heat of stainless steel hot-rolled coil |
-
2022
- 2022-10-08 CN CN202211230790.3A patent/CN115287433B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN115287433A (en) | 2022-11-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115287433B (en) | Online solid solution device and method for bimetal composite pipe | |
| CN102363835B (en) | Intermediate frequency induction heat treatment device for steel tubes, and heat treatment method of the same | |
| CN101678425A (en) | The manufacture method of bending-processed product, manufacturing installation and apparatus for continously production | |
| KR100989418B1 (en) | A welder for a fin tube auto manufacturing device | |
| BRPI1008468B1 (en) | FLEXIBLE TAPE STEEL PROCESSING LINE SUITABLE FOR PRODUCING VARIOUS HIGH STRENGTH STEEL | |
| CN106077084B (en) | A kind of high speed wire rolling method of austenite stainless steel wire rod | |
| CN108220566A (en) | Compact fine grain high-strength plate output strip line flexible manufacturing method | |
| CN110170543A (en) | A kind of titanium alloy seamless pipe short route processing method | |
| CN104561462B (en) | A kind of bainite and martensite Multiphase Steel/iron progressive austempering heat treatment method and device | |
| CN114632837B (en) | Preparation method of spiral heat exchange tube of high-temperature gas cooled reactor steam generator | |
| CN109513766B (en) | Manufacturing method of high-concentricity martensitic stainless steel seamless pipe | |
| CN207770461U (en) | A kind of titanium alloy hot seamless tube production system | |
| CN213507113U (en) | Heat treatment device for thick-wall L80-13Cr seamless steel tube | |
| CN213416974U (en) | Hot-rolled high-strength steel full-continuous heat treatment production system | |
| CN117339999A (en) | Hot rolling-on-line solid solution-on-line pickling integrated process and production line of medium plate stainless steel | |
| CN115971263A (en) | Online gradient temperature control equipment for seamless metal composite tube and rolling and heat treatment method thereof | |
| CN102605308A (en) | Environment-friendly production technology of steel cord by directly hot plating copper zinc alloy and production device thereof | |
| CN216473342U (en) | Channel steel surface quenching device for ferrous metal smelting rolled product | |
| CN113976628A (en) | Production process and device of stainless steel seamless steel pipe | |
| CN108942102A (en) | A kind of manufacturing method of super-duplex stainless steel coiled tubing | |
| CN105598200B (en) | A kind of manufacture method of titanium alloy coiled tubing | |
| CN111974984B (en) | Iron-based alloy powder for high-speed laser cladding and cladding method thereof | |
| CN110257665A (en) | A kind of preparation method of soft/hard filament fine copper-brass composite wire | |
| CN113305471B (en) | Material preheating equipment for welding of power station | |
| CN116000631A (en) | Multi-working-procedure composite arc additive manufacturing device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |