CN108705190B - Vacuum high-frequency induction heating composite device - Google Patents
Vacuum high-frequency induction heating composite device Download PDFInfo
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- CN108705190B CN108705190B CN201810361539.8A CN201810361539A CN108705190B CN 108705190 B CN108705190 B CN 108705190B CN 201810361539 A CN201810361539 A CN 201810361539A CN 108705190 B CN108705190 B CN 108705190B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 63
- 230000006698 induction Effects 0.000 title claims abstract description 63
- 239000002131 composite material Substances 0.000 title claims abstract description 49
- 238000007789 sealing Methods 0.000 claims abstract description 148
- 239000000843 powder Substances 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 7
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 41
- 230000008569 process Effects 0.000 abstract description 39
- 238000013329 compounding Methods 0.000 abstract description 27
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- General Induction Heating (AREA)
Abstract
本发明涉及一种用于双金属复合的真空高频感应加热复合装置，属于焊接装备领域。高频感应加热复合工艺具有工艺简单，复合效率高等一系列优点。本发明的高频感应加热复合装置包含感应加热线圈、密封容器、输送辊道、密封门和抽真空装置，密封容器与抽真空装置相连，在密封容器内布置有输送辊道，输送辊道的相邻输送辊筒之间通过链条链轮连接，所述感应加热线圈为U型结构，上下布置在所述密封容器的左右中间位置，并插入到所述输送辊道辊筒之间，输送辊筒上表面高度位于U型线圈之间，在所述密封容器左右两端均设置有密封门。本发明可以有效地解决高频感应加热复合工艺容易产生氧化夹杂和堆焊层厚度薄等问题。
The invention relates to a vacuum high-frequency induction heating compound device for bimetal compounding, belonging to the field of welding equipment. The high-frequency induction heating composite process has a series of advantages such as simple process and high composite efficiency. The high-frequency induction heating compound device of the present invention comprises an induction heating coil, a sealed container, a conveying roller table, a sealing door and a vacuuming device. The sealing container is connected with the vacuuming device, and a conveying roller table is arranged in the sealed container. The adjacent conveying rollers are connected by a chain sprocket. The induction heating coil is a U-shaped structure, arranged up and down at the left and right middle positions of the sealed container, and inserted between the conveying rollers. The conveying roller The height of the upper surface of the cylinder is located between the U-shaped coils, and sealing doors are provided at the left and right ends of the sealed container. The invention can effectively solve the problems that the high-frequency induction heating composite process is easy to produce oxide inclusions and the thickness of the surfacing layer is thin.
Description
Technical Field
The invention relates to a vacuum high-frequency induction heating composite device for bimetal composite, belonging to the field of welding equipment.
Background
The high-frequency induction heating compounding process is used for compounding a layer of wear-resistant material such as high-chromium cast iron on a tough steel plate, and has a series of advantages of simple process, high compounding efficiency and the like, so that the process is widely applied to actual production. However, in the process, metal powder is stacked on a steel plate and compounded under the condition of high-frequency induction heating, in order to prevent oxidation of metal powder particles and increase the conductivity among the powder particles in the compounding process, a large amount of solvent must be added into the metal powder, so that the large burning loss of the metal powder cannot be completely avoided, the possibility of generating non-metal inclusions in a build-up welding layer in the compounding process is increased, and the structure performance of a composite layer is reduced.
In the high-frequency compounding process, manual operation is mainly adopted at present, the manual operation efficiency is low, the labor intensity is high, the operation is unstable, and quality defects easily occur in the compounding process.
The problems of the high-frequency composite process seriously affect the application of the process in practical production, so a more effective process method needs to be found for solving the problems.
Disclosure of Invention
The present invention has been made in an effort to provide a vacuum high-frequency induction heating composite apparatus which can effectively solve the above-mentioned problems of the high-frequency composite process.
The purpose of the invention is realized as follows: a vacuum high-frequency induction heating composite device for producing a bimetal composite workpiece comprises an induction heating coil, a sealed container, a conveying roller way, a sealing door and a vacuumizing device, wherein the vacuumizing device is connected to the sealed container through a pipeline, the conveying roller way is arranged in the sealed container, adjacent conveying rollers of the conveying roller way are connected through chain sprockets with the same specification, the conveying rollers are connected with a rotary driving device through a connecting shaft and a coupler, the connecting shaft penetrates through the wall of the sealed container, a sealing ring is arranged at the contact part of the connecting shaft and the wall of the sealed container, the induction heating coil is of a U-shaped structure and is arranged at the left middle position and the right middle position of the sealed container from top to bottom and inserted between rollers of the conveying roller way, the upper surface of the conveying roller is highly positioned between the U-shaped coils, the induction heating coil penetrates, the device is characterized in that the outside of the sealed container is connected with a cooling water system and an induction heating power supply, a space between the induction heating coil and the wall of the sealed container is sealed by sealant, sealing doors are arranged at the positions, opposite to the conveying rollers, of the left end and the right end of the sealed container, and a sealed transparent observation window is arranged on the wall of the sealed container.
And conveying rollers of the conveying roller way are symmetrically arranged at the left end and the right end of the induction heating coil.
The sealing door consists of a sealing door plate, a lateral pressurizing device, a door guide groove, a sealing element and an inlet and an outlet, wherein the sealing door plate is inserted into the door guide groove, and the lateral pressurizing device can pressurize the sealing door plate to tightly press the sealing door plate on the sealing element to seal the inlet and the outlet.
The side pressurizing device comprises a guide post frame with a guide post hole, a spring and a guide post, the guide post frame is connected to the side face of the sealed container, the spring is placed in the guide post hole, one end of the guide post is in contact with the spring, and the other end of the guide post extends out of the guide post hole and is opposite to the sealed door panel.
The sealing element is of a structure with a lug, and the lug is clamped into a sealing groove arranged on the wall of the sealing container.
Conveying roller ways are arranged on two sides of the sealed container sealing door, conveying rollers of the conveying roller ways are connected through a chain wheel and chain mechanism, and the height and the specification of the conveying roller ways are consistent with those of the conveying roller ways in the sealed container.
The induction heating coil is arranged on a sealing plate in a penetrating mode, the sealing plate is made of non-magnetic materials and is arranged on the sealing container in a pressing mode through bolts, and a sealing gasket is arranged between the sealing plate and the side wall of the sealing container.
And one end of the guide post, which extends out of the guide post hole, is provided with a roller.
The mounting height of guide post frame guarantees that sealing door panel when rising to the highest position, and the wedge on gyro wheel and the sealing door panel is taken off completely, and when sealing door panel dropped to the lowest position, the gyro wheel can also be pressed on the wedge to guarantee to compress the sealing member 2 ~ 4 mm.
And an air filtering device is arranged on a connecting pipeline between the vacuumizing device and the sealed container, the air filtering device adopts filter cloth to filter, and the size of filter holes of the filter cloth is smaller than the granularity of the high-frequency composite metal powder.
Because the high-frequency induction heating is compounded in the sealed container, in the compounding process, the vacuumizing device is adopted to vacuumize the sealed container, so that the whole compounding process is carried out in a state close to vacuum, the oxygen content in the compounding environment is greatly reduced, the degree of oxidation of metal powder particles by oxygen in the air in the compounding process is effectively reduced, the content of a solvent in the composite powder can be greatly reduced, the problems of a large amount of non-metal impurities and small thickness of a composite layer in the metal composite layer in the compounding process are solved, and the method has the very obvious advantage.
Because the whole compounding process is carried out in the sealed container, the manual direct operation is very troublesome, a conveying roller way is arranged in the sealed container, workpieces to be compounded and compounded are placed on a roller way roller, the roller is driven to rotate by a rotation driving device, the workpieces are driven to move stably at a uniform speed, the problems of low manual compounding efficiency, high labor intensity and unstable compounding quality are solved, and the problem of conveying the workpieces in the sealed container is also solved. The rotary driving device is arranged outside the sealed container, so that the sealed container is convenient to overhaul, the rotary driving device is connected with the roller table rollers through the couplers and the connecting shaft, and in order to ensure the sealing performance of the sealed container, the connecting shaft is provided with a sealing ring at the contact part with the wall of the sealed container. In order to reduce the number of the rotary driving devices, chain wheels with the same specification are arranged on the roller table rollers, and the chain wheels on the adjacent rollers are connected by chains, so that the rollers can rotate at the same speed in the same direction, the stability of workpiece conveying can be ensured, and the rotary driving device has the obvious advantage.
The induction heating coil is of a U-shaped structure, is vertically arranged at the left middle position and the right middle position of the sealed container and is inserted between the rollers of the conveying roller way, and the upper surface of the conveying roller is highly positioned between the U-shaped coils, so that the composite workpiece can be guaranteed to be sent into the U-shaped induction heating coil through the conveying roller to be heated. The induction heating coil penetrates through the wall of the sealed container and is connected with the cooling water system and the induction heating power supply outside the sealed container, so that the arrangement and the maintenance of the induction heating power supply and the cooling water system are facilitated. In order to ensure the sealing performance of the sealed container, the induction heating coil and the wall of the sealed container are sealed by sealant.
The roller way rollers are symmetrically arranged at the left end and the right end of the induction heating coil, the number of the composite workpieces which are placed at the conveying end and the output end after the composite is finished in advance can be balanced left and right, the times of opening and closing of the inlet and the outlet of the sealed container are reduced, the efficiency of the composite process is improved, and the advantages are obvious.
In order to ensure that the composite workpiece can smoothly enter and exit the sealed container, the left side and the right side of the sealed container are provided with an inlet and an outlet. The sealing piece is arranged on the wall of the sealing container around the inlet and the outlet, the sealing pressing plate is arranged at the position corresponding to the inlet and the outlet, and the sealing pressing plate can cover and press the sealing piece, so that the inlet and the outlet are closed, sealed and opened by moving the sealing pressing plate leftwards and rightwards in the compounding process, the compounding process is carried out in a sealing state, and after the compounding operation is completed, the inlet and the outlet are opened, the sealing is released, and the workpiece can smoothly enter and exit the sealing container. Through the arrangement of the sealing pressing plate, the problems that the workpiece is in a sealing composite state and smoothly enters and exits the sealing container in a non-vacuum state are smoothly solved, and the sealing device is simple in structure and reliable in performance.
The side surfaces of the inlet and the outlet are provided with guide post frames, guide holes are formed in the guide post frames, springs are placed at the bottoms in the guide holes, guide posts are arranged in front of the springs, rollers are arranged at the end portions of the guide posts, wedge-shaped blocks are arranged at the positions, corresponding to the rollers, of the sealing pressing plates, the sealing pressing plates are connected with the oil cylinders and can move up and down. When the sealing is needed to be combined, the oil cylinder pushes the sealing pressure plate downwards, in the process, the wedge-shaped block on the sealing pressure plate firstly contacts the roller and pushes the guide post connected with the roller towards the direction in which the spring is placed, the spring applies certain pressure to the wedge-shaped block and the sealing pressure plate, the sealing pressure plate is pressed on the sealing element on the wall of the sealing container, and the inlet and the outlet are sealed. Because in the vacuum production process, the sealing pressure plate is subjected to the suction inside the sealed container, therefore, the pressure generated by the wedge-shaped block is not required to be overlarge, and smooth sealing of an inlet and an outlet in the vacuum pumping process can be ensured, therefore, the distance of the sealing door plate for compressing the sealing element in the up-and-down moving process is determined to be 2-4 mm, the compression distance can not only ensure the original sealing condition requirement in the vacuum pumping process, but also avoid excessive compression of the sealing element, and the service life of the sealing element is shortened. After the workpieces are compounded in the vacuum state, the vacuum state of the sealed container is released, the sealed pressing plate is lifted upwards by the oil cylinder, and the inlet and the outlet are opened, so that the workpieces can be sent out and conveyed. Due to the adoption of the structure of the roller and the spring for pressurization, the sliding friction force borne by the sealing pressure plate in the up-and-down moving process can be greatly reduced, the opening and closing of the inlet and the outlet are facilitated, and the sealing of the sealing pressure plate and the releasing of the sealing are facilitated.
Due to the large friction force between the sealing pressure plate and the sealing element during the up-and-down movement of the sealing pressure plate, if the sealing element is not firmly arranged on the wall of the sealing container, the position of the sealing element can be changed under the action of the friction force, and the sealing can be failed. Therefore, the convex block is arranged on the sealing element and is arranged in the groove arranged on the wall of the sealed container, so that the change of the position of the sealing element caused by the friction force in the process of moving the sealing door plate up and down can be effectively prevented, and the sealing reliability of the whole device is ensured.
For workpieces of different sizes and shapes, induction heating coils of different sizes and shapes need to be used, and therefore the induction heating coils need to be replaced frequently. Therefore, a sealing plate is made of nonmagnetic materials, the induction heating coil is fixed on the sealing plate, and the induction heating coil and the sealing plate are bonded and sealed by sealant. The sealing plate is connected to the sealing container through bolts, and the sealing plate and the sealing container are sealed through sealing gaskets. The structure facilitates the replacement of the induction heating coil, and can avoid the problem that the whole sealing container needs to be replaced when the induction heating coil is replaced. Because a certain induced current is generated between the induction heating coils, the sealing plate is made of a non-magnetic material, so that the sealing plate can be prevented from generating eddy currents in the sealing plate to cause temperature rise in the process of compounding workpieces, and the sealing plate and the sealing gasket are damaged, and the induction heating type composite sealing plate has the obvious advantage.
In the process of taking and placing the workpieces, if the composite workpieces are manually put into and taken out of the sealed container, due to the limitation of spatial positions, the operation is very inconvenient, and the efficiency of the composite production process is seriously reduced. Therefore, conveying roller ways are arranged on two sides of the sealing door of the sealing container in the same manner, the conveying roller way rollers are connected by a chain wheel and chain mechanism in the same manner, and the height and the specification of the conveying roller ways are consistent with those of the conveying roller ways in the sealing container.
The length of the conveying roller way on one side of the non-composite workpiece can be increased as required, so that the number of the non-composite workpieces can be increased, and the trouble degree of operation is reduced. The length of the conveying roller way for conveying one end of the compounded workpiece can be shorter, a collecting and storing box can be arranged at the end of the roller way, the compounded workpiece is directly conveyed into the collecting and storing box, and then the compounded workpiece is collected and cleaned regularly.
Because the granularity of the metal powder used for high-frequency induction compounding is smaller, generally smaller than 200 meshes, the small-particle metal powder is easy to enter a vacuumizing device in the vacuumizing process to damage the vacuumizing device. Therefore, an air filtering device is arranged between the vacuumizing device and a pipeline of the sealed container, the air filtering device filters air by adopting filter cloth, and the size of filter holes of the filter cloth is smaller than the granularity of the composite powder, so that the composite powder can be effectively prevented from entering the vacuumizing device in the composite process, and the vacuumizing device is protected.
Drawings
Fig. 1 and 2 are schematic structural views showing an embodiment of the present invention.
Detailed Description
Fig. 1 and 2 show an embodiment of the present invention, fig. 1 shows a cross-sectional view at a position B-B in fig. 2, and fig. 2 shows a cross-sectional view at a position a-a in fig. 1.
The meaning of the respective part numbers in fig. 1 and 2 is as follows: 1. a conveying roller; 2. a spring; 3. a guide post frame; 4. a roller; 5. an oil cylinder; 6. a cylinder support; 7. sealing the pressure plate; 8. a wedge block; 9. a seal member; 10. a vacuum gauge; 11. an induction heating coil; 12. a vacuum pumping device; 13. sealing the container; 14. a guide post; 15. compounding the workpiece; 16. a workpiece to be compounded; 17. a gasket; 18. a sprocket; 19. a motor; 20. a coupling; 21. a connecting shaft; 22. a seal ring; 23. a chain; 24. sealing glue; 25. a cover plate; 26. a bolt; 27. a cooling water system; 28. an induction heating power supply; 29. a roller base; 30. a transparent viewing window; 31. an inlet and an outlet; 32. filtering cloth; 33. an air filtration device.
The vacuum-pumping device is arranged on the sealed container to generate vacuum in the sealed container, and the vacuum meter can display the vacuum degree in the sealed container to ensure that the composite process is carried out under the condition of certain vacuum degree. The conveying roller ways are arranged in the sealed container, one conveying roller way roller is driven to rotate by a motor through a coupler and a connecting shaft, the connecting shaft penetrates through the wall of the sealed container, a sealing ring is used for sealing between the conveying roller ways and the wall of the sealed container, the rollers of the conveying roller ways in the sealed container are symmetrically arranged at two ends of an induction heating coil, the adjacent rollers are connected by a chain wheel and chain structure, all the chain wheel and chain structures are the same in size and specification, and all the rollers are enabled to synchronously rotate in the same direction after the motor is started.
The induction heating coil is of a U-shaped structure, is vertically arranged at the left middle position and the right middle position of the sealed container and is inserted between the rollers of the conveying roller way, and the upper surface of the conveying roller is highly positioned between the U-shaped coils, so that the composite workpiece can be guaranteed to be conveyed into the U-shaped induction heating coil through the conveying roller to be heated.
The induction heating coil is penetrated on the sealing plate, the sealing plate is sealed by adopting a sealant, and the sealant adopts a high-temperature-resistant sealant to ensure that the temperature generated in the working process of the induction heating coil is borne. The sealing plate is installed on the wall of the sealed container through bolts, so that the sealing plate can be very conveniently disassembled and assembled, and a sealing gasket is arranged between the sealing plate and the wall of the sealed container, so that the sealing performance of the sealed container is guaranteed. The induction heating coil is connected with the induction heating power supply and the cooling water system outside the sealed container respectively, wherein the cooling water circulates through the inner hole of the induction heating coil, and the temperature of the induction heating coil is guaranteed to be maintained at a lower degree.
The left side and the right side of the sealed container are both provided with an inlet and an outlet, and a sealed door plate is arranged corresponding to the inlet and the outlet and is arranged in the guide door groove, so that the distance of the left swinging, the right swinging, the front swinging and the back swinging of the sealed door plate is ensured to be within a certain range. The upper part of the sealing door plate is connected with an oil cylinder, the oil cylinder is arranged on an oil cylinder support, the support is arranged on a sealing container, and the oil cylinder can move the sealing door plate up and down. The wedge-shaped block is connected to the sealing door plate, the sealing door plate pressing device is installed on the outer layer of the sealing door plate and consists of a spring, a guide post frame and a guide post, the spring is installed in the guide post hole formed in the guide post frame, the guide post is also inserted into the guide post hole, one end of the spring is connected with the spring, the other end of the spring extends out of the guide post hole, the roller is installed at the end part of the roller, and the whole guide post frame is connected to the sealing container. The mounting height of guide post frame guarantees that sealing door panel when rising to the highest position, and the wedge on gyro wheel and the sealing door panel takes off completely and leaves, and when sealing door panel descends, when guaranteeing that sealing door panel descends to the lowest position, the gyro wheel can also be pressed on the wedge to guarantee to compress about 3mm with the sealing member, initial sealing requirement when this compressive strain can guarantee sealed container evacuation.
The left side and the right side outside the sealed container are respectively provided with a conveying roller way, the left conveying roller way and the right conveying roller way are independently provided with a rotary driving system, and chain wheels and chains are respectively adopted to connect adjacent roller way rollers, so that smooth transfer of the workpieces to be compounded and compounded inside and outside the sealed container is ensured, and the compounding efficiency is improved.
An observation window made of transparent glass fiber reinforced plastics is arranged on the wall of the sealed container, and the observation window can be used for observing and monitoring the compounding process and finding out the accident condition in the compounding process in time.
When the composite operation is carried out, the workpiece to be composited is firstly placed on the conveying roller way on the right side, then the motor is started, the conveying roller way rotates, and the workpiece to be composited is sent into the sealed container and is close to the position of the induction heating coil. The oil cylinder is enabled to act, the sealing door plate is pushed downwards, in the process, the wedge-shaped block on the sealing door plate is in contact with the roller at the end part of the guide pillar and is pressed to the sealing element, the sealing element is compressed by 3mm at the lowest position, and the sealing performance of the inlet and outlet positions is guaranteed. And then vacuumizing, when the vacuum degree displayed by a vacuum meter meets the requirement, switching on cooling water and an induction power supply, starting the roller of the conveying roller again to rotate, feeding the workpiece to be compounded into an induction heating coil at a constant speed for heating, melting the wear-resistant composite powder coated on the steel plate of the workpiece, and compounding the wear-resistant composite powder on the steel plate. And adjusting the conveying speed of the conveying roller according to the heating compounding speed of the workpiece. And after the composite operation is finished, stopping the conveying roller way, removing the vacuum in the sealed container, lifting the oil cylinder by action, opening the left inlet and the right inlet, starting the conveying roller way again, and conveying the composite workpiece out of the sealed container to finish the composite production operation of the workpiece.
In order to reduce the opening and closing times of the inlet, the outlet and the sealing door plate, the length of each conveying roller way can be lengthened, and a plurality of workpieces are placed on the conveying roller ways at one time, so that the workpieces can be continuously produced, meanwhile, when the continuous production is started, the workpieces can be fed in and out at one time, and the opening times of the inlet, the outlet and the sealing door plate can also be reduced.
An air filtering device is arranged on a pipeline between the vacuumizing device and the sealed container, the air filtering device adopts filter cloth to filter, and the size of filter holes of the filter cloth is smaller than the granularity of the composite powder. The granularity of the alloy particles of the composite powder in the embodiment of the invention is 200 meshes, and the size of the filter holes of the used filter cloth is 320 meshes, so that the composite powder dust generated in the composite process can be ensured to be filtered, and the vacuum pump can be protected from being damaged.
Claims (5)
1. The utility model provides a vacuum high frequency induction heating set composite for producing bimetal composite workpiece, contains induction heating coil, sealed container, rollgang, sealing door and evacuating device, its characterized in that: the vacuumizing device is connected to a sealed container through a pipeline, a conveying roller way is arranged in the sealed container, adjacent conveying rollers of the conveying roller way are connected through chain sprockets with the same specification, the conveying rollers are connected with a rotary driving device through a connecting shaft and a coupler, the connecting shaft penetrates through the wall of the sealed container, a sealing ring is arranged at the contact part of the wall of the sealed container, the induction heating coil is of a U-shaped structure and is arranged at the left middle position and the right middle position of the sealed container from top to bottom and is inserted between the rollers of the conveying roller way, the upper surface of the conveying roller is highly positioned between the U-shaped coils, the induction heating coil penetrates through the wall of the sealed container and is connected with a cooling water system and an induction heating power supply outside the sealed container, the induction heating coil and the wall of the sealed container are sealed by adopting sealant, and sealing doors are arranged at the positions, opposite, a sealed transparent observation window is arranged on the wall of the sealed container; conveying rollers of the conveying roller way are symmetrically arranged at the left end and the right end of the induction heating coil; the sealing door consists of a sealing door plate, a lateral pressurizing device, a door guide groove, a sealing element and an inlet and an outlet, wherein the sealing door plate is inserted into the door guide groove, and the lateral pressurizing device can pressurize the sealing door plate, press the sealing door plate on the sealing element and seal the inlet and the outlet; the side pressurizing device comprises a guide post frame with a guide post hole, a spring and a guide post, the guide post frame is connected to the side surface of the sealed container, the spring is placed in the guide post hole, one end of the guide post is in contact with the spring, and the other end of the guide post extends out of the guide post hole and is opposite to the sealed door panel; the sealing element is of a structure with a lug, and the lug is clamped into a sealing groove arranged on the wall of the sealing container; conveying roller ways are arranged on two sides of the sealed container sealing door, conveying rollers of the conveying roller ways are connected through a chain wheel and chain mechanism, and the height and the specification of the conveying roller ways are consistent with those of the conveying roller ways in the sealed container.
2. The vacuum high-frequency induction heating composite apparatus according to claim 1, characterized in that: the induction heating coil is arranged on a sealing plate in a penetrating mode, the sealing plate is made of non-magnetic materials and is arranged on the sealing container in a pressing mode through bolts, and a sealing gasket is arranged between the sealing plate and the side wall of the sealing container.
3. The vacuum high-frequency induction heating composite apparatus according to claim 1, characterized in that: and one end of the guide post, which extends out of the guide post hole, is provided with a roller.
4. The vacuum high-frequency induction heating composite apparatus according to claim 3, characterized in that: the mounting height of guide post frame guarantees that sealing door panel when rising to the highest position, and the wedge on gyro wheel and the sealing door panel is taken off completely, and when sealing door panel dropped to the lowest position, the gyro wheel can also be pressed on the wedge to guarantee to compress the sealing member 2 ~ 4 mm.
5. The vacuum high-frequency induction heating composite apparatus according to claim 1, characterized in that: and an air filtering device is arranged on a connecting pipeline between the vacuumizing device and the sealed container, the air filtering device adopts filter cloth to filter, and the size of filter holes of the filter cloth is smaller than the granularity of the high-frequency composite metal powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361539.8A CN108705190B (en) | 2018-04-20 | 2018-04-20 | Vacuum high-frequency induction heating composite device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810361539.8A CN108705190B (en) | 2018-04-20 | 2018-04-20 | Vacuum high-frequency induction heating composite device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108705190A CN108705190A (en) | 2018-10-26 |
| CN108705190B true CN108705190B (en) | 2021-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201810361539.8A Expired - Fee Related CN108705190B (en) | 2018-04-20 | 2018-04-20 | Vacuum high-frequency induction heating composite device |
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| DE69119204T2 (en) * | 1990-06-21 | 1996-11-14 | Nippon Steel Corp | MANUFACTURING PROCESS OF POWDER OR GRANULAR-FILLED TUBES |
| CN100436021C (en) * | 2003-12-10 | 2008-11-26 | 上海工程技术大学 | An Automatic built up welding method and equipment |
| CN100999032B (en) * | 2006-08-21 | 2010-08-18 | 大连大高阀门有限公司 | New technology of valve sealing element vacuum induction pile-up welding hard alloy and improved equipment |
| CN201952487U (en) * | 2010-12-01 | 2011-08-31 | 东莞宏威数码机械有限公司 | Vacuum substrate heating and loading equipment |
| CN103264259B (en) * | 2013-05-15 | 2015-04-22 | 张兵权 | Abrasion-resistant fire-proof brick mold plate and fast manufacturing method thereof |
| CN103394783B (en) * | 2013-07-30 | 2015-09-30 | 哈尔滨工业大学（威海） | Ultrasonic auxiliary vacuum brazing equipment |
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