CN116426735B - Rapid heat treatment equipment and method for metal bar - Google Patents
Rapid heat treatment equipment and method for metal bar Download PDFInfo
- Publication number
- CN116426735B CN116426735B CN202310471990.6A CN202310471990A CN116426735B CN 116426735 B CN116426735 B CN 116426735B CN 202310471990 A CN202310471990 A CN 202310471990A CN 116426735 B CN116426735 B CN 116426735B
- Authority
- CN
- China
- Prior art keywords
- metal bar
- clamp
- clamping
- electrode clamp
- movable
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 155
- 239000002184 metal Substances 0.000 title claims abstract description 155
- 238000010438 heat treatment Methods 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010791 quenching Methods 0.000 claims abstract description 15
- 230000000171 quenching effect Effects 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 20
- 239000010949 copper Substances 0.000 claims description 20
- 239000000498 cooling water Substances 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 11
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0075—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rods of limited length
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
-
- 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
- C21D11/00—Process control or regulation for heat treatments
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention belongs to the technical field of intelligent heat treatment production lines, and particularly relates to a metal bar rapid heat treatment device and a metal bar rapid heat treatment method. According to the invention, high-power direct current is combined with water quenching, so that the heating and temperature rising rate of the metal bar are accurately controlled.
Description
Technical Field
The invention belongs to the technical field of intelligent heat treatment production lines, and particularly relates to a quick heat treatment device and method for metal bars.
Background
Heat treatment refers to modification of the metallic structure by heating, maintaining and cooling to obtain the desired properties. The heating rate, heating temperature, heat preservation time and cooling mode of the heat treatment have obvious influence on the material tissue performance. The titanium alloy is light in weight, high in strength and good in corrosion resistance, and is widely applied to the advanced technological fields of aerospace, medical appliances and the like. However, the characteristics of low heat conductivity, strong high-temperature activity, strong tissue sensitivity and the like of the titanium alloy determine that the adoption of rapid heat treatment in the processing process of the titanium alloy can not only remarkably improve the production efficiency and reduce the production cost, but also reduce the oxidation loss of materials and provide a new way for improving the tissues and the performances.
Induction heating, high frequency current heating, is currently the main type of rapid metal heating.
Although the heating rate of the material can be improved by adopting an induction heating mode, the temperature distribution in the material is not uniform in the heating process due to the characteristic of the material from outside to inside, and the temperature gradient from the surface of the material to the inside exists, so that the uniform regulation and control of the material structure are provided with a serious challenge.
The inherent nature of high frequency current heating, however, makes it only possible to work on small-sized sheet materials, making it difficult to perform effective heat treatment of part-level products.
Compared with the cooling modes such as air cooling, gas quenching, oil quenching and the like, the water quenching mode has controllable cooling rate, better cooling effect and higher economy. The rapid heat treatment equipment for rapidly heating the two metals is difficult to carry out water quenching and oil quenching on the parts.
The high-power direct current can synchronously generate a rapid thermal effect in a short time everywhere in the metal material, and is very suitable for rapid thermal treatment. At present, a metal rapid heat treatment device combining high-power direct current with water quenching is needed to realize accurate control of material heating and heating rate, improve material performance and fill the blank in the field of rapid heat treatment devices.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides the rapid heat treatment equipment and the rapid heat treatment method for the metal bar.
The scheme is realized by the following technical measures: the quick heat treatment equipment for the metal bar comprises a cabinet, wherein a control part, a temperature measuring part, a clamping heating part and a cooling part are integrated on the cabinet;
The control part is used for controlling the temperature measuring part and the clamping heating part to work and comprises a control screen arranged on the cabinet and a controller arranged in the cabinet, and the control screen is electrically connected with the controller;
the temperature measuring part is positioned above the clamping heating part and is used for measuring the temperature of the metal bar clamped by the clamping heating part in real time and feeding back the measuring structure to the controller in real time, and the controller controls the heating and clamping work of the clamping heating part according to the temperature information of the metal bar fed back by the temperature measuring part;
The clamping and heating part is used for clamping and heating the metal bars with different lengths, and after the metal bars are heated to a preset temperature, the clamping and heating part stops heating and loosens the metal bars;
And the cooling part is positioned below the clamping heating part and is used for carrying out water quenching on the metal bar falling from the clamping heating part.
Preferably, the temperature measuring part comprises a far infrared thermometer and a supporting frame, wherein the far infrared thermometer is electrically connected with the controller, one end of the supporting frame is fixedly connected with the cabinet, and the other end of the supporting frame is fixedly connected with the far infrared thermometer.
Preferably, the support frame comprises a horizontal linear guide rail fixedly connected inside the cabinet, horizontal support rods capable of being slidingly adjusted along the left and right directions are respectively arranged on the left side and the right side of the horizontal linear guide rail, vertical mounting blocks are fixedly connected to the front ends of the horizontal support rods, horizontal adjusting grooves for the sliding adjustment of the horizontal support rods are formed in the cabinet, vertical support rods are respectively fixedly connected to the bottoms of the two vertical mounting blocks, two far infrared thermometers are arranged, the range of one far infrared thermometer is 200-800 ℃, the range of the other far infrared thermometer is 600-1400 ℃, the two far infrared thermometers are respectively and fixedly arranged on the two mounting brackets, and the two mounting brackets are respectively connected and fixed with the vertical support rods through hoops.
Preferably, the clamping and heating part comprises a hydraulic electrode clamp, an electric sliding table and a heating element, wherein the hydraulic electrode clamp comprises a fixed hydraulic electrode clamp and a movable hydraulic electrode clamp, the electric sliding table is used for driving the movable hydraulic electrode clamp to horizontally move, the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp are respectively used for clamping two ends of the metal bar, and the heating element is used for heating the metal bar.
Preferably, the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp respectively comprise clamp supports, the lower ends of the clamp supports are provided with mounting openings, the front sides in the mounting openings are fixedly provided with fixed clamp bodies, the rear sides of the clamp supports are fixedly provided with hydraulic cylinders or air cylinders, the front ends of piston rods of the hydraulic cylinders or air cylinders penetrate through the clamp supports and extend into the mounting openings, the front ends of the piston rods of the hydraulic cylinders or air cylinders are fixedly connected with movable clamp bodies corresponding to the fixed clamp bodies, and the fixed clamp bodies and the movable clamp bodies are matched to clamp or loosen metal bars.
Preferably, the electric slipway comprises a motor, a horizontal lead screw and an upper horizontal guide rod and a lower horizontal guide rod, wherein the motor is fixedly connected with the cabinet, one end of the horizontal lead screw is fixedly connected with an output shaft of the motor, the other end of the horizontal lead screw is rotationally connected with the cabinet, the lower ends of clamp supports of the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp are respectively fixedly connected with a support limit block, one ends of the two horizontal guide rods are fixedly connected with the support limit block at the lower end of the fixed hydraulic electrode clamp, the other ends of the two horizontal guide rods are fixedly connected with the cabinet, the rear side of the support limit block at the lower end of the movable hydraulic electrode clamp is provided with an arc-shaped guide groove matched with the upper horizontal guide rod and the lower horizontal guide rod, the rear side of the support limit block at the lower end of the fixed hydraulic electrode clamp is in no contact with the horizontal lead screw, one side of the support limit block at the lower end of the movable hydraulic electrode clamp is fixedly connected with a connecting frame, a temperature sensor is arranged between the support limit block at the lower end of the movable hydraulic electrode clamp and the connecting frame, the motor and the temperature sensor are electrically connected with the controller, the rear side of the connecting frame is provided with an arc-shaped guide groove matched with the upper horizontal guide rod and the lower horizontal guide rod, and the middle part is provided with the screw.
Preferably, the heating element comprises a transformer and two groups of red copper soft bars, the transformer is arranged in the cabinet, a high-power thyristor is connected between the two groups of red copper soft bars and the transformer, the transformer and the two high-power thyristors are respectively electrically connected with the controller, one ends of the two groups of red copper soft bars are respectively electrically connected with the high-power thyristors, the other ends of the two groups of red copper soft bars are respectively contacted with two ends of the metal bar, working voltage output by the transformer is directly loaded to two ends of the metal bar through the two groups of red copper soft bars, and the whole metal bar is directly heated by utilizing the thermal effect of current in the metal bar.
Preferably, when the diameter of the metal bar is greater than or equal to 300mm, the highest working voltage output by the transformer is 50V, and when the diameter of the metal bar is less than 300mm, the highest working voltage output by the transformer is 25V.
Preferably, the cooling part comprises a cooling water tank, a plurality of front and rear supports perpendicular to the metal bar are fixedly arranged in the cooling water tank, a filter screen is supported and arranged above each front and rear support, and when the metal bar falls on the filter screen, the water surface of cooling water in the cooling water tank is higher than the top end of the metal bar.
The invention also provides a metal bar rapid heat treatment method based on the metal bar rapid heat treatment equipment, which comprises the following steps:
S1: inputting the density, length and diameter of the metal bar through a control screen, and setting heating temperature, heating rate and heat preservation time;
S2: according to the actual length of the metal bar, the controller controls the motor to start, the motor drives the horizontal screw rod to rotate, the support limiting block at the lower end of the movable hydraulic electrode clamp is driven by the rotation of the horizontal screw rod to move to the clamping position required by the metal bar, and the motor is closed;
s3: the distance between the two far infrared thermometers is adjusted according to the length of the metal bar, the longer the length of the metal bar is, the larger the distance between the two far infrared thermometers is, and the height of the far infrared thermometers is adjusted according to the diameter of the metal bar: the larger the diameter of the metal bar is, the higher the height of the far infrared thermometer is;
S4: placing two ends of the metal bar in the mounting port, selecting a clamping option by approaching the control screen, controlling the hydraulic cylinder or the air cylinder to start by the controller, extending the piston rod of the hydraulic cylinder or the air cylinder and driving the movable clamp body to move forwards, and clamping the metal bar by the cooperation of the fixed clamp body and the movable clamp body;
s5: the controller controls the high-power thyristor to be started, the working voltage output by the transformer is directly loaded to two ends of the metal bar through two groups of red copper soft bars, the metal bar is directly heated by utilizing the thermal effect of current in the metal bar, the metal bar is softened after being heated, the tension of the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp can be reduced, at the moment, the controller controls the motor to start, the movable hydraulic electrode clamp is slowly moved outwards, after a preset distance is moved, the motor is closed, the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp keep constant tension, and the real-time temperature of the metal bar is measured by the far infrared thermometer and fed back to the controller;
s6: when the temperature of the metal bar reaches the preset temperature, the controller controls the high-power thyristor to be closed, then the controller controls the hydraulic cylinder or the piston rod of the cylinder to reset and drive the movable clamp body to move backwards, the metal bar is rapidly released, the metal bar accurately falls into a cooling water tank below to finish quenching, and the operation is finished.
The invention has the beneficial effects that: according to the invention, the temperature measuring part is used for measuring the temperature of the metal bar clamped by the clamping heating part in real time through controlling the work of the temperature measuring part and the clamping heating part, the measuring structure is fed back to the controller in real time, and the controller is used for controlling the heating and clamping work of the clamping heating part according to the temperature information of the metal bar fed back by the temperature measuring part, so that the clamping heating part clamps and heats the metal bar with different lengths, and after the metal bar is heated to a preset temperature, the clamping heating part stops heating and loosens the metal bar, so that the metal bar falls into the cooling part for water quenching. According to the invention, high-power direct current is combined with water quenching, so that the heating and temperature rising rate of the metal bar are accurately controlled, and the performance of the metal bar is improved. It can be seen that the present invention has outstanding substantial features and significant advances over the prior art, as well as the benefits of its implementation.
Drawings
Fig. 1 is a schematic structural view of a rapid thermal processing apparatus for metal bar materials according to the present invention.
Fig. 2 is a schematic structural view of a fixed hydraulic electrode clamp and a movable hydraulic electrode clamp.
Fig. 3 is a schematic top view of the interior of the cooling water tank.
In the figure: the device comprises a 1-cabinet, a 2-vertical mounting block, a 3-horizontal adjusting groove, a 4-horizontal supporting rod, a 5-clamp, a 6-red copper soft bar, a 7-vertical supporting rod, an 8-far infrared thermometer, a 9-horizontal lead screw, a 10-connecting frame, an 11-supporting limiting block, a 12-movable hydraulic electrode clamp, a 13-horizontal guide rod, a 14-cooling water tank, a 15-motor, a 16-fixed hydraulic electrode clamp, a 17-clamp support, a 18-hydraulic cylinder or air cylinder, a 19-fixed clamp body, a 20-movable clamp body, a 21-mounting port, a 22-metal bar, a 23-front-rear support, a 24-filter screen, a 25-mounting support and a 26-arc-shaped guide groove.
Detailed Description
In order to clearly illustrate the technical characteristics of the present solution, the present solution is described below by means of specific embodiments and with reference to the accompanying drawings.
The quick heat treatment equipment for the metal bar comprises a cabinet 1, wherein a control part, a temperature measuring part, a clamping heating part and a cooling part are integrated on the cabinet 1;
The control part is used for controlling the temperature measuring part and the clamping heating part to work and comprises a control screen (not shown in the figure) arranged on the cabinet 1 and a controller arranged inside the cabinet 1, wherein the control screen is electrically connected with the controller;
The temperature measuring part is positioned above the clamping heating part and is used for measuring the temperature of the metal bar 22 clamped by the clamping heating part in real time and feeding back the measuring structure to the controller in real time, and the controller controls the heating and clamping work of the clamping heating part according to the temperature information of the metal bar 22 fed back by the temperature measuring part;
A clamping heating part for clamping and heating the metal bars 22 with different lengths, wherein after the metal bars 22 are heated to a predetermined temperature, the clamping heating part stops heating and releases the metal bars 22;
And the cooling part is positioned below the clamping heating part and is used for carrying out water quenching on the metal bar 22 falling from the clamping heating part.
The temperature measuring part comprises a far infrared thermometer 8 and a supporting frame, wherein the far infrared thermometer 8 is electrically connected with the controller, one end of the supporting frame is fixedly connected with the cabinet 1, and the other end of the supporting frame is fixedly connected with the far infrared thermometer 8. The support frame includes the horizontal linear guide of fixed connection in cabinet 1 inside, horizontal bracing piece 4 that can follow left and right directions sliding adjustment is installed respectively to horizontal linear guide's left and right sides, the front end fixedly connected with vertical installation piece 2 of horizontal bracing piece 4, offer the horizontal adjustment groove 3 that supplies horizontal bracing piece 4 sliding adjustment on cabinet 1, the bottom of two vertical installation pieces 2 has linked firmly vertical bracing piece 7 respectively, far infrared thermoscope 8 is provided with two, the range of a far infrared thermoscope is 200-800 ℃, the range of another far infrared thermoscope is 600-1400 ℃ to guarantee the temperature measurement precision, two far infrared thermoscope 8 are fixed mounting respectively on two installing support 25, two installing support 25 are connected fixedly through clamp 5 and vertical bracing piece 7 respectively. Can adjust the interval between two far infrared thermoscope 8 according to the length of metal rod 22, the length of metal rod 22 is longer, and the interval between two far infrared thermoscope 8 is greater, and during the regulation, remove two horizontal bracing pieces 4 along horizontal adjustment groove 4, two horizontal bracing pieces 4 drive far infrared thermoscope 8 through vertical installation piece 2, vertical bracing piece 7 and installing support 25 and remove, realize the regulation of interval between two far infrared thermoscope 8. The height of two far infrared thermometers 8 can also be adjusted according to the diameter of the metal bar 22, the larger the diameter of the metal bar 22 is, the higher the height of the far infrared thermometers 8 is, and when the height is adjusted, the position of the clamp 5 is adjusted up and down along the vertical supporting rod 7, the clamp 5 drives the far infrared thermometers 8 to synchronously move up and down through the mounting bracket 25, and after the height of the far infrared thermometers 8 is adjusted in place, the clamp 5 is fixed on the vertical supporting rod 7. The far infrared thermometer 8 adopts an infrared online temperature sensor, the comprehensive temperature test range is 200-2000 ℃, the temperature signal measurement feedback speed is less than or equal to 2 milliseconds, namely the temperature measurement reaction speed is 1/500 seconds, and the infrared laser aiming facula visible to naked eyes can be started for accurately aiming at the metal bars 22 with different diameters.
The clamping and heating part comprises a hydraulic electrode clamp, an electric sliding table and a heating element, wherein the hydraulic electrode clamp comprises a fixed hydraulic electrode clamp 16 and a movable hydraulic electrode clamp 12, the electric sliding table is used for driving the movable hydraulic electrode clamp 12 to horizontally move, the fixed hydraulic electrode clamp 16 and the movable hydraulic electrode clamp 12 are respectively used for clamping two ends of the metal bar 22, and the heating element is used for heating the metal bar 22.
Specifically, the fixed hydraulic electrode clamp 16 and the movable hydraulic electrode clamp 12 respectively comprise a clamp support 17, a mounting opening 21 is formed in the lower end of the clamp support 17, a fixed clamp body 19 is fixedly mounted on the front side in the mounting opening 21, a hydraulic cylinder or an air cylinder 18 is fixedly mounted on the rear side outside of the clamp support 17, the front end of a piston rod of the hydraulic cylinder or the air cylinder 18 penetrates through the clamp support 17 and extends into the mounting opening 21, a movable clamp body 20 corresponding to the fixed clamp body 19 is fixedly connected to the front end of the piston rod of the hydraulic cylinder or the air cylinder 18, and the fixed clamp body 19 and the movable clamp body 20 are matched to clamp or unclamp a metal bar 22. The controller controls the starting and stopping of the hydraulic cylinder or the air cylinder 18, and when the hydraulic cylinder or the air cylinder 18 is started, a piston rod of the hydraulic cylinder or the air cylinder 18 extends forwards, and the piston rod drives the movable clamp body 20 to move forwards so as to clamp the metal bar 22. When the controller controls the hydraulic cylinder or the air cylinder 18 to be closed, the piston rod of the hydraulic cylinder or the air cylinder 18 is reset backwards, and the piston rod drives the movable clamp body 20 to move backwards, so that the metal bar 22 is loosened, and the metal bar 22 falls into the cooling water tank 14.
The electric sliding table comprises a motor 15, a horizontal lead screw 9 and an upper horizontal guide rod 13 and a lower horizontal guide rod 13, wherein the motor 15 is fixedly connected with the cabinet 1, one end of the horizontal lead screw 9 is fixedly connected with an output shaft of the motor 15, the other end of the horizontal lead screw is rotatably connected with the cabinet 1, the fixed hydraulic electrode clamp 16 and the lower end of a clamp support 17 of the movable hydraulic electrode clamp 12 are respectively fixedly connected with a support limiting block 11, one end of the two horizontal guide rods 13 is fixedly connected with the support limiting block 11 at the lower end of the fixed hydraulic electrode clamp 16, the other end of the two horizontal guide rods are fixedly connected with the cabinet 1, the rear side of the support limiting block 11 at the lower end of the movable hydraulic electrode clamp 12 is provided with an arc-shaped guide groove 26 matched with the upper horizontal guide rod 13 and the lower horizontal guide rod 13, the rear side of the support limiting block 11 at the lower end of the fixed hydraulic electrode clamp 16 is in non-contact with the horizontal lead screw 9, one side of the support limiting block 11 at the lower end of the movable hydraulic electrode clamp 12 is fixedly connected with a connecting frame 10, a temperature sensor is arranged between the support limiting block 11 at the lower end of the movable hydraulic electrode clamp 12 and the connecting frame 10, the temperature sensor is used for detecting the temperature of an input end of a metal bar 22, the temperature controller is arranged between the support limiting block 11 at the lower end of the movable hydraulic electrode clamp 12 and the connecting frame 10, the rear side of the movable electrode clamp is provided with the arc-shaped guide groove, the temperature sensor is electrically connected with the arc-shaped guide groove 10, and the arc-shaped guide groove is in real time, and the rear of the electric guide groove is connected with the arc-shaped guide rod controller, and the electric guide rod is in real-time, and the electric device is connected with the electric device. The electric slipway can adjust the distance between the fixed hydraulic electrode clamp 16 and the movable hydraulic electrode clamp 12 according to the length of the metal bar 22 so as to adapt to the clamping requirements of the metal bars 22 with different lengths. During adjustment, the controller controls the motor 15 to start, the motor 15 drives the horizontal screw rod 9 to rotate, the connecting frame 10 drives the movable hydraulic electrode clamp 12 to move to the clamping position required by the metal bar 22 through rotation of the horizontal screw rod 9, and the motor 15 is turned off.
The heating element comprises a transformer and two groups of red copper soft bars 6, the transformer is arranged in the cabinet 1, a high-power thyristor is connected between the two groups of red copper soft bars 6 and the transformer, the transformer and the two high-power thyristors are respectively electrically connected with the controller, one ends of the two groups of red copper soft bars 6 are respectively electrically connected with the high-power thyristors, the other ends of the two groups of red copper soft bars are respectively contacted with two ends of the metal bar 22, working voltage output by the transformer is directly loaded to two ends of the metal bar 22 through the two groups of red copper soft bars 6, the metal bar 22 is directly heated by the heat effect of current in the metal bar 22, the internal heat and the external heat of the metal bar 22 are consistent, and the heating is uniform. The transformer converts 380V voltage of the power grid into two low-voltage steps of 50V and 25V, when the diameter of the metal bar 22 is greater than or equal to 300mm, the highest working voltage output by the transformer is 50V, and when the diameter of the metal bar 22 is less than 300mm, the highest working voltage output by the transformer is 25V.
The cooling part comprises a cooling water tank 14, a plurality of front and rear supports 23 perpendicular to the metal bar 22 are fixedly arranged in the cooling water tank 14, a filter screen 24 is supported and arranged above each front and rear support 23, when the metal bar 22 falls on the filter screen 24, the water level of cooling water in the cooling water tank 14 is higher than the top end of the metal bar 22, the metal bar 22 is guaranteed to be fully quenched, and the metal bar 22 is conveniently taken out.
The invention also provides a metal bar rapid heat treatment method based on the metal bar rapid heat treatment equipment, which comprises the following steps:
S1: inputting the density, length and diameter of the metal bar 22 through a control screen, and setting the heating temperature, heating rate and heat preservation time;
s2: according to the actual length of the metal bar 22, the controller controls the motor 15 to start, the motor 15 drives the horizontal screw rod 9 to rotate, the rotation of the horizontal screw rod 9 enables the support limiting block 11 at the lower end of the movable hydraulic electrode clamp 12 to drive the movable hydraulic electrode clamp 12 to move to the clamping position required by the metal bar 22, and the motor 15 is closed;
S3: according to the length of the metal bar 22, the distance between the two far infrared thermometers 8 is adjusted, the longer the length of the metal bar 22 is, the larger the distance between the two far infrared thermometers 8 is, and the height of the far infrared thermometers 8 is adjusted according to the diameter of the metal bar 22: the larger the diameter of the metal bar 22 is, the higher the height of the far infrared thermometer 8 is;
S4: placing two ends of a metal bar 22 in the mounting port 21, selecting a clamping option by approaching the control screen, controlling the hydraulic cylinder or the air cylinder 18 to start by the controller, extending the piston rod of the hydraulic cylinder or the air cylinder 18 and driving the movable clamp body 20 to move forwards, and clamping the metal bar 22 by the cooperation of the fixed clamp body 19 and the movable clamp body 20;
S5: the controller controls the high-power thyristor to be started, the working voltage output by the transformer is directly loaded to the two ends of the metal bar 22 through the two groups of red copper soft bars 6, the metal bar 22 is directly heated by the thermal effect of current in the metal bar 22, the metal bar 22 is softened after being heated, the tension of the fixed hydraulic electrode clamp 16 and the movable hydraulic electrode clamp 12 is reduced, at the moment, the controller controls the motor 15 to start, the movable hydraulic electrode clamp 12 is slowly moved outwards, after a preset distance is moved, the motor 15 is closed, the fixed hydraulic electrode clamp 16 and the movable hydraulic electrode clamp 12 are kept at a constant tension, and the real-time temperature of the metal bar 22 is measured by the far infrared thermometer 8 and fed back into the controller;
s6: when the temperature of the metal bar 22 reaches the preset temperature, the controller controls the high-power thyristor to be closed, so that quick power-off of the red copper soft bar 6 is realized, then the controller controls the piston rod of the hydraulic cylinder or the air cylinder 18 to reset and drive the movable clamp body 20 to move backwards, the metal bar 22 is quickly released, the metal bar 22 accurately falls into the cooling water tank 14 below to finish quenching, and the operation is finished.
The technical features not described in the present invention may be implemented by the prior art, and are not described herein. The present invention is not limited to the above-described embodiments, and variations, modifications, additions, or substitutions within the spirit and scope of the present invention will be within the scope of the present invention by those of ordinary skill in the art.
Claims (8)
1. The utility model provides a quick heat treatment equipment of metal rod, it includes rack, characterized by: the cabinet is integrated with a control part, a temperature measuring part, a clamping heating part and a cooling part;
The control part is used for controlling the temperature measuring part and the clamping heating part to work and comprises a control screen arranged on the cabinet and a controller arranged in the cabinet, and the control screen is electrically connected with the controller;
the temperature measuring part is positioned above the clamping heating part and is used for measuring the temperature of the metal bar clamped by the clamping heating part in real time and feeding back the measuring structure to the controller in real time, and the controller controls the heating and clamping work of the clamping heating part according to the temperature information of the metal bar fed back by the temperature measuring part;
The clamping and heating part is used for clamping and heating the metal bars with different lengths, and after the metal bars are heated to a preset temperature, the clamping and heating part stops heating and loosens the metal bars; the clamping and heating part comprises a hydraulic electrode clamp, an electric sliding table and a heating element, wherein the hydraulic electrode clamp comprises a fixed hydraulic electrode clamp and a movable hydraulic electrode clamp, the electric sliding table is used for driving the movable hydraulic electrode clamp to horizontally move, the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp are respectively used for clamping two ends of a metal bar, and the heating element is used for heating the metal bar; the heating element comprises a transformer and two groups of red copper soft bars, the transformer is arranged in the cabinet, a high-power thyristor is connected between the two groups of red copper soft bars and the transformer, the transformer and the two high-power thyristors are respectively and electrically connected with the controller, one ends of the two groups of red copper soft bars are respectively and electrically connected with the high-power thyristors, the other ends of the two groups of red copper soft bars are respectively and electrically contacted with two ends of the metal bar, working voltage output by the transformer is directly loaded to the two ends of the metal bar through the two groups of red copper soft bars, and the whole metal bar is directly heated by utilizing the thermal effect of current in the metal bar;
And the cooling part is positioned below the clamping heating part and is used for carrying out water quenching on the metal bar falling from the clamping heating part.
2. The rapid thermal processing apparatus for metal bars according to claim 1, characterized in that: the temperature measuring part comprises a far infrared thermometer and a supporting frame, wherein the far infrared thermometer is electrically connected with the controller, one end of the supporting frame is fixedly connected with the cabinet, and the other end of the supporting frame is fixedly connected with the far infrared thermometer.
3. The rapid thermal processing apparatus for metal bars according to claim 2, characterized in that: the support frame includes the horizontal linear guide of fixed connection in the rack inside, horizontal bracing piece that can follow left and right directions slip regulation is installed respectively to horizontal linear guide's left and right sides, the front end fixedly connected with vertical installation piece of horizontal bracing piece, offer the horizontal adjustment groove that supplies horizontal bracing piece slip regulation on the rack, the bottom of two vertical installation pieces has linked firmly vertical bracing piece respectively, far infrared thermoscope is provided with two, and the range of one far infrared thermoscope is 200-800 ℃, and the range of another far infrared thermoscope is 600-1400 ℃, and two far infrared thermoscope are fixed mounting respectively on two installing supports, and two installing supports are fixed with vertical bracing piece connection through the clamp respectively.
4. A metal bar rapid thermal processing apparatus according to claim 3, characterized in that: the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp respectively comprise clamp supports, the lower ends of the clamp supports are provided with mounting openings, the front sides in the mounting openings are fixedly provided with fixed clamp bodies, the rear sides of the clamp supports are fixedly provided with hydraulic cylinders or air cylinders, the front ends of piston rods of the hydraulic cylinders or air cylinders penetrate through the clamp supports and extend into the mounting openings, the front ends of the piston rods of the hydraulic cylinders or air cylinders are fixedly connected with movable clamp bodies corresponding to the fixed clamp bodies, and the fixed clamp bodies and the movable clamp bodies are matched to clamp or loosen metal bars.
5. The rapid thermal processing apparatus for metal bar according to claim 4, wherein: the electric sliding table comprises a motor, a horizontal lead screw and an upper horizontal guide rod and a lower horizontal guide rod, wherein the motor is fixedly connected with a cabinet, one end of the horizontal lead screw is fixedly connected with an output shaft of the motor, the other end of the horizontal lead screw is rotationally connected with the cabinet, the lower ends of clamp supports of a fixed hydraulic electrode clamp and a movable hydraulic electrode clamp are respectively fixedly connected with a support limiting block, one ends of the two horizontal guide rods are fixedly connected with the support limiting block at the lower end of the fixed hydraulic electrode clamp, the other ends of the two horizontal guide rods are fixedly connected with the cabinet, arc-shaped guide grooves matched with the upper horizontal guide rod and the lower horizontal guide rod are formed in the rear side of the support limiting block at the lower end of the movable hydraulic electrode clamp, the rear side of the support limiting block at the lower end of the fixed hydraulic electrode clamp is not contacted with the horizontal lead screw, one side of the support limiting block at the lower end of the movable hydraulic electrode clamp is far away from the fixed hydraulic electrode clamp is fixedly connected with a connecting frame, a temperature sensor is mounted between the support limiting block at the lower end of the movable hydraulic electrode clamp and the connecting frame, the motor and the temperature sensor are electrically connected with a controller, arc-shaped guide grooves matched with the upper horizontal guide rods and lower horizontal guide rods are formed in the rear side of the connecting frame, and the middle of the connecting frame is provided with screw threads.
6. The rapid thermal processing apparatus for metal bar according to claim 5, characterized in that: when the diameter of the metal bar is greater than or equal to 300mm, the highest working voltage output by the transformer is 50V, and when the diameter of the metal bar is less than 300mm, the highest working voltage output by the transformer is 25V.
7. The rapid thermal processing apparatus for metal bar according to claim 6, wherein: the cooling part comprises a cooling water tank, a plurality of front and rear supports perpendicular to the metal bar are fixedly arranged in the cooling water tank, a filter screen is supported and arranged above each front and rear support, and when the metal bar falls on the filter screen, the water surface of cooling water in the cooling water tank is higher than the top end of the metal bar.
8. A method for rapid heat treatment of metal bar based on the rapid heat treatment apparatus for metal bar according to any one of claims 1 to 7, characterized in that: it comprises the following steps:
S1: inputting the density, length and diameter of the metal bar through a control screen, and setting heating temperature, heating rate and heat preservation time;
S2: according to the actual length of the metal bar, the controller controls the motor to start, the motor drives the horizontal screw rod to rotate, the support limiting block at the lower end of the movable hydraulic electrode clamp is driven by the rotation of the horizontal screw rod to move to the clamping position required by the metal bar, and the motor is closed;
s3: the distance between the two far infrared thermometers is adjusted according to the length of the metal bar, the longer the length of the metal bar is, the larger the distance between the two far infrared thermometers is, and the height of the far infrared thermometers is adjusted according to the diameter of the metal bar: the larger the diameter of the metal bar is, the higher the height of the far infrared thermometer is;
S4: placing two ends of the metal bar in the mounting port, selecting a clamping option by approaching the control screen, controlling the hydraulic cylinder or the air cylinder to start by the controller, extending the piston rod of the hydraulic cylinder or the air cylinder and driving the movable clamp body to move forwards, and clamping the metal bar by the cooperation of the fixed clamp body and the movable clamp body;
s5: the controller controls the high-power thyristor to be started, the working voltage output by the transformer is directly loaded to two ends of the metal bar through two groups of red copper soft bars, the metal bar is directly heated by utilizing the thermal effect of current in the metal bar, the metal bar is softened after being heated, the tension of the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp can be reduced, at the moment, the controller controls the motor to start, the movable hydraulic electrode clamp is slowly moved outwards, after a preset distance is moved, the motor is closed, the fixed hydraulic electrode clamp and the movable hydraulic electrode clamp keep constant tension, and the real-time temperature of the metal bar is measured by the far infrared thermometer and fed back to the controller;
s6: when the temperature of the metal bar reaches the preset temperature, the controller controls the high-power thyristor to be closed, then the controller controls the hydraulic cylinder or the piston rod of the cylinder to reset and drive the movable clamp body to move backwards, the metal bar is rapidly released, the metal bar accurately falls into a cooling water tank below to finish quenching, and the operation is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310471990.6A CN116426735B (en) | 2023-04-27 | 2023-04-27 | Rapid heat treatment equipment and method for metal bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310471990.6A CN116426735B (en) | 2023-04-27 | 2023-04-27 | Rapid heat treatment equipment and method for metal bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116426735A CN116426735A (en) | 2023-07-14 |
| CN116426735B true CN116426735B (en) | 2024-04-30 |
Family
ID=87085389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310471990.6A Active CN116426735B (en) | 2023-04-27 | 2023-04-27 | Rapid heat treatment equipment and method for metal bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116426735B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391342A (en) * | 2008-09-26 | 2009-03-25 | 姚圣法 | Metal-bar automatic quench tempering butt-welding machine |
| JP2009263701A (en) * | 2008-04-23 | 2009-11-12 | Nippon Steel Corp | Method for heating material to be heated |
| JP2011096585A (en) * | 2009-10-30 | 2011-05-12 | Mitsui Eng & Shipbuild Co Ltd | Bar charger |
| CN112695158A (en) * | 2020-12-22 | 2021-04-23 | 燕山大学 | High-pressure water jet end quenching device |
| CN115029523A (en) * | 2022-08-12 | 2022-09-09 | 苏州集萃高合材料科技有限公司 | Device and method for rapidly eliminating residual stress of high-temperature alloy bar |
-
2023
- 2023-04-27 CN CN202310471990.6A patent/CN116426735B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009263701A (en) * | 2008-04-23 | 2009-11-12 | Nippon Steel Corp | Method for heating material to be heated |
| CN101391342A (en) * | 2008-09-26 | 2009-03-25 | 姚圣法 | Metal-bar automatic quench tempering butt-welding machine |
| JP2011096585A (en) * | 2009-10-30 | 2011-05-12 | Mitsui Eng & Shipbuild Co Ltd | Bar charger |
| CN112695158A (en) * | 2020-12-22 | 2021-04-23 | 燕山大学 | High-pressure water jet end quenching device |
| CN115029523A (en) * | 2022-08-12 | 2022-09-09 | 苏州集萃高合材料科技有限公司 | Device and method for rapidly eliminating residual stress of high-temperature alloy bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116426735A (en) | 2023-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102925632B (en) | Vertical high-frequency quenching machine | |
| CN102266881A (en) | Stretching-straightening device for online heating-straightening process of magnesium alloy extrusion material | |
| CN112063804A (en) | Heat treatment device with adjustable heating position | |
| CN116426735B (en) | Rapid heat treatment equipment and method for metal bar | |
| CN218175027U (en) | Metal workpiece surface heat treatment device | |
| CN208266229U (en) | A kind of full-automatic whole pulse induction heating quenching lathe of automobile axle shaft | |
| CN116287590A (en) | Automatic heat treatment equipment for vertical high-frequency induction quenching | |
| CN211771551U (en) | Laser cladding equipment auxiliary heating module | |
| CN209745755U (en) | Controllable diffusion experimental apparatus of temperature pressure | |
| CN219174558U (en) | High-frequency induction quenching device | |
| CN109108428B (en) | Universal welding support for induction brazing | |
| CN219195031U (en) | High-frequency induction quenching positioning clamping device | |
| CN117904402A (en) | Electric heating and rapid quenching device and method | |
| CN112588974A (en) | Aluminum alloy heating equipment and operation method | |
| CN219778140U (en) | Heat treatment temperature control equipment based on intelligent touch screen | |
| CN219670552U (en) | Safe heat treatment fixture | |
| CN219174542U (en) | Quenching assembly of high-frequency induction quenching equipment | |
| CN220788691U (en) | Quenching device for crankshaft machining | |
| CN217451610U (en) | Upper and lower track stretch bender | |
| CN218225232U (en) | Induction heating device for rotating workpiece | |
| CN108707724A (en) | Automobile stabilizer bar mid-frequency quenching equipment | |
| CN219079586U (en) | Heat treatment furnace convenient for clamping heat treatment objects | |
| CN219637263U (en) | Quenching die for heat treatment of workpiece | |
| CN219174539U (en) | Automatic heat treatment device for hardware tool | |
| CN219174557U (en) | Automatic heat treatment equipment for vertical high-frequency induction quenching |
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 |