A high temperature solid melting furnace for heat treatment of metal powder injection molding and use method thereof

Abstract

The present invention discloses a high-temperature solid solution furnace for heat treatment of metal powder injection molding and a method for using the same. The present invention relates to the technical field of high-temperature heat treatment furnaces for metal powder injection molding, including a screw push rod, a screw motor, a mesh belt, a furnace door inlet, a thermal insulation fiber felt, a molybdenum wire heating tube, a thermocouple, a furnace body, a cooling water jacket, a furnace door, a tensioner, a support seat, a drive motor and an explosion-proof valve, wherein the screw push rod is connected to the screw motor, and the furnace door inlet is opened on the side of the cooling water jacket. The present invention is equipped with an injection molding part that is quickly transported from a high-temperature zone to a cooling section through a mesh belt, so as to achieve rapid cooling and heat treatment of the part. The drive motor drives the mesh belt to move, and the movement of the mesh belt drives the tensioner to rotate. The rotation of the tensioner facilitates the adjustment of the tightness of the mesh belt, so as to achieve smooth operation of the entire movement. Through the present invention, the solid solution heat treatment of metal powder injection molding parts can be achieved, and the comprehensive mechanical properties of the injection molding parts can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of high-temperature heat treatment furnaces for metal powder injection molding, and in particular to a high-temperature solid melting furnace for heat treatment of metal powder injection molding and a use method thereof. Background Art

[0002] Most of the pit-type carburizing furnaces currently used in heat treatment furnaces use iron-chromium-aluminum materials for the heating body, with a maximum temperature of 1100°C. The heat treatment temperature is relatively low, and the quenching heat treatment work efficiency is low. Traditional heat treatment is applied to quenching and tempering processes of metal materials. In practical applications, there are certain problems with heat treatment industrial furnaces, which affect their performance and heat treatment effects. First, the temperature control is not accurate, and the temperature deviation is relatively large. Due to structural problems, the upper and lower temperatures in the furnace are inconsistent, resulting in incomplete transformation of the material during the heat treatment process, unstable metallographic structure, and unstable material properties. Another problem is uneven heating speed. The speed of heating during the heat treatment process will affect the organization and performance of the material. This uneven heating leads to inconsistent heating uniformity of injection molded parts, thereby affecting the transformation of the material organization and mechanical properties.

[0003] The existing high temperature solid melting furnace for heat treatment of metal powder injection molding has the following defects:

[0004] 1. Patent document CN112573492B discloses a strontium europium nitride solid solution powder and a preparation method thereof. "The strontium europium nitride solid solution powder is prepared by crushing a strontium europium nitride solid solution. The chemical formula of the strontium europium nitride solid solution is (Sr1-xEux)2N; wherein 0<x≤0.02. The preparation method comprises the following steps: S1, weighing metal strontium Sr and metal europium Eu, placing them in a vacuum melting furnace, vacuuming and cleaning the furnace, and then introducing argon as a protective gas, and then pouring them into an ingot mold after melting to obtain an alloy. Ingot; S2, after cleaning the surface of the alloy ingot, place it in a hydrogen crushing furnace, introduce hydrogen and heat it to crush the alloy ingot, and then heat and dehydrogenate it to obtain a coarse alloy powder; S3, lower the temperature of the hydrogen crushing furnace to below 150°C, introduce nitrogen into the hydrogen crushing furnace and gradually increase the temperature to 450°C and keep it warm for 5 hours to obtain strontium europium nitride solid solution powder. However, the existing high-temperature solid solution furnace for metal powder injection molding heat treatment cannot achieve solid solution heat treatment of metal powder injection molding parts, which will reduce the comprehensive mechanical properties of injection molded parts;

[0005] 2. Patent document CN210528994U discloses an online solid solution equipment for stainless steel wire, "including a furnace front insulation conveying device arranged before entering the furnace, an online solid solution furnace and a water-cooled conveying device after the furnace, the furnace front insulation conveying device includes a furnace front conveying roller and a heat preservation cover arranged on the furnace front conveying roller, the online solid solution furnace includes a furnace box, furnace rollers arranged in sequence along the length direction of the furnace box and arranged in the furnace box, and a burner arranged on the furnace wall, at least the furnace front and the middle and rear sections of the furnace box are provided with thermocouple metal thermometers. The furnace of the present application has good temperature controllability, uniform heat in each area, short production cycle, and the stability and uniformity of the grain size and mechanical properties of the finished product after solid solution are better than the previous offline solid solution. The solid solution furnace of the present application has a simple structure and is easy to disassemble and maintain", but the mesh belt of the existing high-temperature solid solution furnace for heat treatment of metal powder injection molding cannot quickly adjust the tension, which reduces the use efficiency;

[0006] 3. Patent document CN219010389U discloses a solid solution treatment furnace for the production of low temperature resistant springs, "including a base, a solid solution treatment furnace body and a shell are provided on the top of the base, a connecting tube is inserted between the solid solution treatment furnace body and the shell, one side outer wall of the solid solution treatment furnace body and one side outer wall of the shell are both rotatably connected with a rotating roller, a metal mesh belt is transmission-connected between the two rotating rollers, the metal mesh belt passes through the solid solution treatment furnace body, the connecting tube and the shell, one side outer wall of the solid solution treatment furnace body is fixedly connected with a motor, the output end of the motor is fixedly connected with one end of one of the rotating rollers, a cold water tank is provided on the top of the base, and a pump body is fixedly connected to the top outer wall of the cold water tank. The utility model drives the metal mesh belt to rotate by rotating the rotating roller driven by the motor, thereby transmitting the spring, so that the spring is conveniently and quickly moved in the solid solution treatment furnace", but the tensioning wheel of the existing high temperature solid solution furnace for metal powder injection molding heat treatment cannot be automatically lubricated, which increases wear and reduces service life;

[0007] 4. Patent document CN213866327U discloses a solid solution aging heat treatment device for metal castings, "including: a solid solution furnace, a quenching furnace and a track, support plates are fixedly installed on both sides of the lower outer wall of the solid solution furnace, the support plates are fixedly connected, and the support columns are fixedly installed on the fixed seats. Two drive motors 2 are arranged on the top of the solid solution furnace, a rotating rod is fixedly installed under the drive motor 2, a rotating wheel is fixedly installed under the rotating rod, a chain is arranged on the rotating wheel, and a hook is fixedly installed at the end of the chain; a wheel is arranged on the track, and the wheel is fixedly connected to the drive motor 1 through a horizontal axis. The top of the driving motor 1 is fixedly connected to the plate through a connecting rod 1. A material basket, a quenching furnace and an aging furnace are placed on the plate from left to right. The material basket, the quenching furnace and the aging furnace are fixedly connected through a connecting rod 2. Cylinders 1 and 2 are fixedly installed above the solid solution furnace and the aging furnace, respectively. Cylinders 1 and 2 are fixedly connected to the furnace door. The utility model saves space and can shorten the transfer time. However, the protective gas of the existing high-temperature solid solution furnace for metal powder injection molding heat treatment is prone to leaking when entering the device, and the connection sealing is not high. Summary of the invention

[0008] The purpose of the present invention is to provide a high-temperature solid solution furnace for metal powder injection molding heat treatment and a method of use, so as to solve the technical problem raised in the above background technology that the existing high-temperature solid solution furnace for metal powder injection molding heat treatment cannot achieve solid solution heat treatment of metal powder injection molding parts, which will reduce the comprehensive mechanical properties of injection molding parts.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-temperature solid melting furnace for heat treatment of metal powder injection molding, comprising a screw push rod, a screw motor, a mesh belt, a furnace door inlet, a thermal insulation fiber felt, a molybdenum wire heating tube, a thermocouple, a furnace body, a cooling water jacket, a furnace door, a tensioner, a support seat, a drive motor and an explosion-proof valve, wherein the screw push rod is connected to the screw motor, and the furnace door inlet is opened on the side of the cooling water jacket to facilitate the metal powder injection molding parts to enter and exit the furnace, and the parts can be pushed to the surface of the mesh belt, the mesh belt is formed by connecting molybdenum bars in series, the mesh belt is located on one side of the furnace door inlet, a tensioner is provided on one side of the mesh belt, a furnace body is installed at one end of the cooling water jacket, a corundum tube is installed on the inner wall of the furnace body, the thermal insulation fiber felt is evenly distributed on the upper and lower positions of the corundum tube of the furnace body, and five layers are provided on the upper and lower positions, a ceramic insulating tube is installed on the inner wall of the furnace body, and a plurality of molybdenum wire heating tubes are wound on the ceramic insulating tube, an explosion-proof valve is provided on the top of the furnace body, and a tensioner adjustment assembly is installed on the outer wall of the mesh belt, and the tensioner adjustment assembly is used to quickly adjust the position of the tensioner.

[0010] Preferably, the temperature of the molybdenum wire heating tube can reach ℃, the cooling water jacket is welded from stainless steel plates into a square sandwich shape, circulating cooling water is passed in the middle of the sandwich, the mesh belt reciprocates back and forth in a cycle, and parts are transported smoothly during the movement.

[0011] Preferably, the tensioner wheel adjustment assembly includes a box body, a moving head, a No. 1 rod, an H-shaped frame, and a clamping column. The box body is located at the outer wall of the mesh belt, the moving head is located at the inner wall of the box body, the No. 1 rod is located at the inner wall of the box body, a No. 1 cylinder is installed on the outer wall of the No. 1 rod, the H-shaped frame runs through the bottom of the box body, a support plate is installed on the outer wall of the No. 1 cylinder, and one end of the H-shaped frame is connected to the outer wall of the support plate, the tensioner wheel is located on the outer wall of the H-shaped frame, a No. 2 plate is installed on the inner wall of the box body, a No. 2 opening is opened on the outer wall of the No. 2 plate, a No. 3 cylinder is installed through the outer wall of the support plate, an electromagnetic block is installed on the inner wall of the No. 3 cylinder, a No. 4 spring is installed on the outer wall of the electromagnetic block, the clamping column runs through the outer wall of the No. 3 cylinder, and one end of the clamping column is connected to one end of the No. 4 spring, and a lubrication assembly is installed on the outer wall of the H-shaped frame, and the function of the lubrication assembly is to provide lubrication for the tensioner wheel.

[0012] Preferably, one end of the clamping column can be clamped into the interior of the No. 2 port, and the No. 1 tube is moved by the support of the No. 1 rod.

[0013] Preferably, the lubrication assembly includes a collecting box, a diverter block, a guide head, a striking head, a No. 6 spring, and a No. 5 rod. The collecting box is located on the outer wall of the H-shaped frame, the diverter block is located on the inner wall of the collecting box, an oil outlet pipe is installed through the bottom of the collecting box, a No. 5 rod is installed on the bottom of the collecting box, a No. 6 barrel is installed on the outer wall of the No. 5 barrel, a No. 7 plate is installed on the outer wall of the No. 6 barrel, a No. 6 plate is installed on the outer wall of the No. 5 rod, the No. 6 spring is located on the outer wall of the No. 6 plate, and one end of the No. 6 spring is connected to the outer wall of the No. 7 plate, a guide head is installed on the outer wall of the No. 7 plate, a guide head is installed on the outer wall of the No. 7 plate, a No. 4 motor is installed on the outer wall of the No. 4 motor, and a striking head is installed on the output end of the No. 4 motor.

[0014] Preferably, the No. 6 cylinder is moved by the support of the No. 5 rod, and the guide head closes the oil outlet pipe.

[0015] Preferably, an air inlet head is installed through the outer wall of the cooling water jacket, and a gas sealing component is installed on the outer wall of the air inlet head. The gas sealing component is used to prevent gas leakage when protecting the gas from entering the high-temperature solid melting furnace.

[0016] Preferably, the air sealing assembly includes a support ring, a sealing ring, a No. 8 rod, a No. 9 tube, and a bracket. The support ring is located on the outer wall of the cooling water jacket, the sealing ring passes through the outer wall of the support ring, the No. 8 rod is located on the inner wall of the support ring, the No. 9 tube passes through the outer wall of the No. 8 rod, the bracket is located on the outer wall of the sealing ring, a connecting block is installed on the outer wall of the bracket, and one end of the connecting block is connected to the outer wall of the No. 9 tube, a No. 9 spring is installed on the outer wall of the bracket, and one end of the No. 9 spring is connected to the inner wall of the support ring.

[0017] Preferably, the sealing ring is made of rubber, and the No. 9 cylinder moves with the support of the No. 8 rod.

[0018] Preferably, the method for using the solid melting furnace comprises the following steps:

[0019] Step S1, the function of the furnace body is to provide a place for parts processing, the function of the support seat is to improve the support for the furnace body, the function of the furnace door entrance is to facilitate the entry and exit of parts, and the function of the thermocouple is to timely measure the temperature in the furnace, with high temperature measurement accuracy, and the temperature is uniform, adjustable and controllable. The cooling water jacket can achieve rapid cooling, and the injection molded parts are quickly transported from the high temperature zone to the cooling section through the mesh belt, so as to achieve rapid cooling and heat treatment process for the parts. The driving motor drives the mesh belt to move, and the movement of the mesh belt drives the tensioning wheel to rotate. The rotation of the tensioning wheel facilitates the adjustment of the tightness of the mesh belt, so as to achieve smooth operation of the entire movement. Through the present invention, the solid solution heat treatment of metal powder injection molded parts can be achieved, and the comprehensive mechanical properties of injection molded parts can be improved;

[0020] Step S2, the electromagnetic block is started to generate magnetic force to drive the card column to move. The card column is made of iron. The movement of the card column drives the No. 4 spring to move. The movement of the No. 4 spring causes the card column to move out of the No. 2 port. At this time, the movement of the moving head drives the support plate to move. The movement of the support plate drives the No. 1 cylinder to move. The movement of the No. 1 cylinder causes the support plate to drive the H-shaped frame to move. The movement of the H-shaped frame drives the tensioner to adjust its position. The tensioner adjusts its position to drive the mesh belt to move. The mesh belt moves to quickly prop it up. After the mesh belt is propped up to a suitable position, the electromagnetic block is closed, and the No. 4 spring drives the card column to clamp into the No. 2 port to fix it, thereby realizing the function of quickly adjusting the tension of the mesh belt of the high-temperature solid melting furnace to improve its use efficiency.

[0021] Step S3, the lubrication assembly is located above the tensioner wheel, the rotation of the No. 4 motor drives the striking head to rotate, the rotation of the striking head drives the No. 7 plate to move, the movement of the No. 7 plate drives the No. 6 cylinder to move, the movement of the No. 6 cylinder drives the No. 6 spring to move, the No. 6 spring moves the No. 7 plate to drive the guide head to move, the guide head moves to move away from the oil outlet pipe, at this time, the lubricating oil in the collection box is discharged through the oil outlet pipe, and flows to the connection between the tensioner wheel and the H-shaped frame through the guide head to automatically lubricate it, when the No. 4 motor stops, the tension of the No. 6 spring drives the No. 7 plate to drive the guide head to block the oil outlet pipe, realizing the function of automatic lubrication of the tensioner wheel of the high-temperature solid melting furnace, reducing wear and improving service life;

[0022] Step S4, the top of the support ring is an arc-shaped edge to facilitate the connection of the air pipe, and ammonia or nitrogen enters the furnace body through the air pipe connected to the air inlet head. When the air pipe is connected to the air inlet head, the support ring is wrapped, and the air pipe continues to move to drive the sealing ring to move, the movement of the sealing ring drives the bracket to move, the movement of the bracket drives the connecting block to move, the movement of the connecting block causes the bracket to drive the No. 9 spring to move, and the movement of the No. 9 spring tightly connects the sealing ring and the air pipe to prevent air leakage, thereby preventing the protective gas of the high-temperature solid melting furnace from leaking when entering the device and improving the connection sealing.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention is equipped with a furnace body to provide a place for parts processing, a support seat to improve the support for the furnace body, a furnace door inlet to facilitate the entry and exit of parts, and a thermocouple to timely measure the temperature in the furnace. The temperature measurement has high accuracy, and the temperature is uniform, adjustable and controllable. The cooling water jacket can achieve rapid cooling, and the injection molded parts are quickly transported from the high-temperature zone to the cooling section through the mesh belt, so that the parts can be quickly cooled and subjected to a rapid cooling heat treatment process. The driving motor drives the mesh belt to move, and the movement of the mesh belt drives the rotation of the tensioning wheel. The rotation of the tensioning wheel facilitates the adjustment of the tightness of the mesh belt, so that the entire movement can be smoothly operated. Through the present invention, the solid solution heat treatment of metal powder injection molded parts can be achieved, and the comprehensive mechanical properties of injection molded parts can be improved;

[0025] 2. The present invention generates magnetic force to drive the clamping column to move by installing an electromagnetic block to start. The clamping column is made of iron. The movement of the clamping column drives the No. 4 spring to move. The movement of the No. 4 spring causes the clamping column to move out of the No. 2 port. At this time, the movement of the moving head drives the movement of the support plate. The movement of the support plate drives the No. 1 cylinder to move. The movement of the No. 1 cylinder causes the support plate to drive the H-shaped frame to move. The movement of the H-shaped frame drives the tensioner to adjust its position. The tensioner adjusts its position to drive the mesh belt to move. The mesh belt moves to quickly prop it up. After the mesh belt is propped up to a suitable position, the electromagnetic block is closed, and the No. 4 spring drives the clamping column to clamp into the No. 2 port to fix it, thereby realizing the function of quickly adjusting the tension of the mesh belt of the high-temperature solid melting furnace to improve its use efficiency.

[0026] 3. The present invention installs a lubrication assembly above the tensioner, and the rotation of the No. 4 motor drives the striking head to rotate, and the rotation of the striking head drives the No. 7 plate to move, and the movement of the No. 7 plate drives the No. 6 cylinder to move, and the movement of the No. 6 cylinder drives the No. 6 spring to move, and the No. 7 plate drives the guide head to move, and the guide head moves to move away from the oil outlet pipe. At this time, the lubricating oil in the collection box is discharged through the oil outlet pipe, and flows to the connection between the tensioner and the H-shaped frame through the guide head to automatically lubricate it. When the No. 4 motor stops, the tension of the No. 6 spring drives the No. 7 plate to drive the guide head to block the oil outlet pipe, thereby realizing the function of automatic lubrication of the tensioner of the high-temperature solid melting furnace, reducing wear and improving service life;

[0027] 4. The present invention facilitates the connection of the air pipe by installing a support ring with an arc-shaped edge on the top. Ammonia or nitrogen enters the furnace body through the air pipe connected to the air inlet head. When the air pipe is connected to the air inlet head, the support ring is wrapped. The air pipe continues to move, driving the sealing ring to move. The movement of the sealing ring drives the bracket to move. The movement of the bracket drives the connecting block to move. The movement of the connecting block causes the bracket to drive the No. 9 spring to move. The No. 9 spring moves to tightly connect the sealing ring and the air pipe to prevent air leakage in the protective gas of the high-temperature solid melting furnace when entering the device and improve the connection sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the axial cross-sectional structure of the present invention;

[0029] Figure 2 For the present invention Figure 1 Schematic diagram of radial cross-sectional structure;

[0030] Figure 3 It is a schematic diagram of the H-shaped frame structure of the present invention;

[0031] Figure 4 For the present invention Figure 3 A structural diagram of ;

[0032] Figure 5 It is a schematic diagram of the structure of the collection box of the present invention;

[0033] Figure 6 For the present invention Figure 5 Schematic diagram of the B structure;

[0034] Figure 7 It is a schematic diagram of the sealing ring structure of the present invention;

[0035] Figure 8 It is a schematic diagram of the structure of the air intake head from a top view according to the present invention.

[0036] In the figure: 1. Screw push rod; 2. Screw motor; 3. Mesh belt; 4. Furnace door inlet; 5. Insulation fiber felt; 6. Molybdenum wire heating tube; 7. Thermocouple; 8. Furnace body; 9. Cooling water jacket; 10. Furnace door; 11. Tensioner; 12. Support seat; 13. Drive motor; 14. Explosion-proof valve; 15. Box; 16. Moving head; 17. No. 1 rod; 18. No. 1 cylinder; 19. H-shaped frame; 20. No. 2 plate; 21. No. 2 mouth; 22. No. 3 cylinder; 23. Electric Magnetic block; 24. Spring No. 4; 25. Clamping column; 26. Collecting box; 27. Diverter block; 28. Oil outlet pipe; 29. ​​Rod No. 5; 30. Cylinder No. 6; 31. Plate No. 7; 32. Guide head; 33. Motor No. 4; 34. Beating head; 35. Plate No. 6; 36. Spring No. 6; 37. Inlet head; 38. Support ring; 39. Sealing ring; 40. Rod No. 8; 41. Cylinder No. 9; 42. Connecting block; 43. Bracket; 44. Spring No. 9; 46. Support plate. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The present invention provides an embodiment: a high-temperature solid melting furnace for heat treatment of metal powder injection molding, comprising a screw push rod 1, a screw motor 2, a mesh belt 3, a furnace door inlet 4, a thermal insulation fiber felt 5, a molybdenum wire heating tube 6, a thermocouple 7, a furnace body 8, a cooling water jacket 9, a furnace door 10, a tensioner 11, a support seat 12, a drive motor 13 and an explosion-proof valve 14, wherein the screw push rod 1 is connected to the screw motor 2, and the furnace door inlet 4 is opened on the side of the cooling water jacket 9, which is convenient for metal powder injection molding parts. Parts enter and exit the furnace, and the parts can be pushed to the mesh belt surface 3. The mesh belt 3 is connected by molybdenum bars. The mesh belt 3 is located on one side of the furnace door inlet 4. A tensioning wheel 11 is provided on one side of the mesh belt 3. A furnace body 8 is installed at one end of the cooling water jacket 9. A corundum tube is installed on the inner wall of the furnace body 8. The thermal insulation fiber felt 5 is evenly distributed on the upper and lower positions of the corundum tube of the furnace body 8, and five layers are provided on the upper and lower sides. A ceramic insulating tube is installed on the inner wall of the furnace body 8. A plurality of molybdenum wire heating tubes 6 are wound on the ceramic insulating tube. The top of the furnace body 8 is provided with Explosion-proof valve 14, the outer wall of the mesh belt 3 is equipped with a tensioning wheel 11 adjustment component, the tensioning wheel 11 adjustment component is used to quickly adjust the position of the tensioning wheel 11, the temperature of the molybdenum wire heating tube 6 can reach 1600℃, the cooling water jacket 9 is welded from stainless steel plates into a square sandwich shape, and circulating cooling water is introduced into the middle of the sandwich. The mesh belt 3 reciprocates back and forth and smoothly transports parts during movement. An air inlet head 37 is installed through the outer wall of the cooling water jacket 9, and a gas sealing component is installed on the outer wall of the air inlet head 37. The gas sealing component is used to prevent gas leakage when the gas enters the high-temperature solid solution furnace. The solid solution furnace can realize the use of heat treatment such as solid solution and quenching of metal powder injection molded parts according to the needs of the heat treatment production process. The function of the furnace body 8 is to provide a place for parts processing, the function of the support seat 12 is to improve the support for the furnace body 8, the function of the furnace door inlet 4 is to facilitate the entry and exit of parts, and the function of the thermocouple 7 is to measure the temperature in the furnace in a timely manner. The temperature measurement has high accuracy and the temperature is uniform, adjustable and controllable. The cooling water jacket 9 can achieve rapid cooling. The injection molded parts are quickly transported from the high temperature zone to the cooling section through the mesh belt 3 to achieve rapid cooling and heat treatment of the parts. The driving motor 13 drives the mesh belt 3 to move, and the movement of the mesh belt 3 drives the tensioning wheel 11 to rotate. The rotation of the tensioning wheel 11 is convenient for adjusting the tightness of the mesh belt 3 to achieve smooth operation of the entire movement. Through the present invention, solid solution heat treatment of metal powder injection molded parts can be achieved, and the comprehensive mechanical properties of injection molded parts can be improved.

[0041] Example 2: Please refer to Figure 1 , Figure 3 and Figure 4The present invention provides an embodiment: the tension wheel 11 adjustment assembly includes a box 15, a moving head 16, a No. 1 rod 17, an H-shaped frame 19, and a clamping column 25. The box 15 is located on the outer wall of the mesh belt 3, the moving head 16 is located on the inner wall of the box 15, the No. 1 rod 17 is located on the inner wall of the box 15, the outer wall of the No. 1 rod 17 is installed with a No. 1 cylinder 18, the H-shaped frame 19 runs through the bottom of the box 15, the outer wall of the No. 1 cylinder 18 is installed with a support plate 46, and one end of the H-shaped frame 19 is connected to the support The outer wall of the plate 46 is connected, the tensioner 11 is located on the outer wall of the H-shaped frame 19, the inner wall of the box body 15 is installed with a No. 2 plate 20, the outer wall of the No. 2 plate 20 is provided with a No. 2 opening 21, the outer wall of the support plate 46 is penetrated and installed with a No. 3 cylinder 22, the inner wall of the No. 3 cylinder 22 is installed with an electromagnetic block 23, the outer wall of the electromagnetic block 23 is installed with a No. 4 spring 24, the clamping column 25 penetrates the outer wall of the No. 3 cylinder 22, and one end of the clamping column 25 is connected to one end of the No. 4 spring 24, the outer wall of the H-shaped frame 19 The first cylinder 18 is moved by the support of the first rod 17, and the electromagnetic block 23 is started to generate a magnetic force to drive the clamping column 25 to move. The clamping column 25 is made of iron. The movement of the clamping column 25 drives the fourth spring 24 to move. The movement of the fourth spring 24 causes the clamping column 25 to move out of the second mouth 21. At this time, the moving head 16 moves to drive the support plate 46 to move, and the support plate 46 moves to drive the first cylinder 18 to move. The first cylinder 18 moves to cause the support plate 46 to drive the H-shaped frame 19 to move. The movement of the H-shaped frame 19 drives the tensioning wheel 11 to adjust its position. The tensioning wheel 11 adjusts its position to drive the mesh belt 3 to move. The mesh belt 3 moves to quickly support it. After the mesh belt 3 is supported to a suitable position, the electromagnetic block 23 is closed, and the fourth spring 24 drives the clamping column 25 to be clamped in the second mouth 21 to fix it, thereby realizing the function of quickly adjusting the tension of the mesh belt 3 of the high-temperature solid melting furnace to improve its utilization efficiency.

[0042] Example 3: Please refer to Figure 3 , Figure 5 and Figure 6, an embodiment provided by the present invention: the lubrication assembly includes a collection box 26, a diverter block 27, a guide head 32, a striking head 34, a No. 6 spring 36, and a No. 5 rod 29, the collection box 26 is located on the outer wall of the H-shaped frame 19, the diverter block 27 is located on the inner wall of the collection box 26, an oil outlet pipe 28 is installed through the bottom of the collection box 26, a No. 5 rod 29 is installed at the bottom of the collection box 26, a No. 6 cylinder 30 is installed on the outer wall of the No. 5 rod 29, a No. 7 plate 31 is installed on the outer wall of the No. 6 cylinder 30, a No. 6 plate 35 is installed on the outer wall of the No. 5 rod 29, a No. 6 spring 36 is located on the outer wall of the No. 6 plate 35, and one end of the No. 6 spring 36 is connected to the outer wall of the No. 7 plate 31, a guide head 32 is installed on the outer wall of the No. 7 plate 31, and the guide head 32 is conical, a No. 4 motor 33 is installed on the outer wall of the No. 5 rod 29, and a striking head 34 is installed on the output end of the No. 4 motor 33, and the No. 6 cylinder 30 passes through the No. 6 cylinder 30. The guide head 32 closes the oil outlet pipe 28 and the lubricating assembly is located above the tensioning wheel 11. The rotation of the No. 4 motor 33 drives the striking head 34 to rotate, and the rotation of the striking head 34 drives the No. 7 plate 31 to move, and the movement of the No. 7 plate 31 drives the No. 6 cylinder 30 to move, and the movement of the No. 6 cylinder 30 drives the No. 6 spring 36 to move, and the movement of the No. 6 spring 36 causes the No. 7 plate 31 to drive the guide head 32 to move, and the guide head 32 moves to move away from the oil outlet pipe 28. At this time, the lubricating oil in the collection box 26 is discharged through the oil outlet pipe 28, and flows to the connection between the tensioning wheel 11 and the H-shaped frame 19 through the guide head 32 to automatically lubricate it. When the No. 4 motor 33 stops, the tension of the No. 6 spring 36 forces the No. 7 plate 31 to drive the guide head 32 to block the oil outlet pipe 28, thereby realizing the function of automatic lubrication of the tensioning wheel 11 of the high-temperature solid melting furnace to reduce wear and increase service life.

[0043] Example 4: Please refer to Figure 1 , Figure 7 and Figure 8An embodiment of the present invention is as follows: an air inlet head 37 is installed through the outer wall of the cooling water jacket 9, and a gas sealing component is installed on the outer wall of the air inlet head 37. The gas sealing component is used to prevent gas leakage when the gas enters the high-temperature solid melting furnace. The gas sealing component includes a support ring 38, a sealing ring 39, an eighth rod 40, a ninth tube 41, and a bracket 43. The support ring 38 is located on the outer wall of the cooling water jacket 9, and the sealing ring 39 penetrates the outer wall of the support ring 38. The eighth rod 40 is located on the inner wall of the support ring 38. The ninth tube 41 penetrates the outer wall of the eighth rod 40. The bracket 43 is located on the outer wall of the sealing ring 39. A connecting block 42 is installed on the outer wall of the bracket 43, and one end of the connecting block 42 is connected to the outer wall of the ninth tube 41. The outer wall of the bracket 43 is installed with a ninth spring 44, and the ninth spring 44 is installed on the outer wall of the ninth tube 41. One end of the spring 44 is connected to the inner wall of the support ring 38, the sealing ring 39 is made of rubber, the No. 9 tube 41 is moved by the support of the No. 8 rod 40, and the top of the support ring 38 is an arc-shaped edge to facilitate the connection of the air pipe. Ammonia or nitrogen enters the furnace body 8 through the air pipe connected to the air inlet head 37, and wraps the support ring 38 when the air pipe is connected to the air inlet head 37. The air pipe continues to move to drive the sealing ring 39 to move, and the movement of the sealing ring 39 drives the bracket 43 to move. The movement of the bracket 43 drives the connecting block 42 to move. The movement of the connecting block 42 causes the bracket 43 to drive the No. 9 spring 44 to move. The movement of the No. 9 spring 44 tightly connects the sealing ring 39 to the air pipe to prevent air leakage in the minute, thereby preventing the protective gas of the high-temperature solid melting furnace from leaking when entering the device and improving the sealing of the connection.

[0044] The method for using the solid melting furnace comprises the following steps:

[0045] Step S1, the function of the furnace body 8 is to provide a place for parts processing, the function of the support seat 12 is to improve the support for the furnace body 8, the function of the furnace door inlet 4 is to facilitate the entry and exit of parts, and the function of the thermocouple 7 is to timely measure the temperature in the furnace, with high temperature measurement accuracy, and the temperature is uniform, adjustable and controllable. The cooling water jacket 9 can achieve rapid cooling, and the injection molded parts are quickly transported from the high temperature zone to the cooling section through the mesh belt 3 to achieve rapid cooling and heat treatment of the parts. The driving motor 13 drives the mesh belt 3 to move, and the movement of the mesh belt 3 drives the tensioning wheel 11 to rotate. The rotation of the tensioning wheel 11 facilitates the adjustment of the tightness of the mesh belt 3, so as to achieve smooth operation of the entire movement. Through the present invention, the solid solution heat treatment of metal powder injection molded parts can be achieved, and the comprehensive mechanical properties of injection molded parts can be improved;

[0046] Step S2, the electromagnetic block 23 is started to generate magnetic force to drive the clamping column 25 to move. The clamping column 25 is made of iron. The movement of the clamping column 25 drives the No. 4 spring 24 to move. The movement of the No. 4 spring 24 causes the clamping column 25 to move out of the No. 2 port 21. At this time, the moving head 16 moves to drive the support plate 46 to move. The support plate 46 moves to drive the No. 1 cylinder 18 to move. The No. 1 cylinder 18 moves to cause the support plate 46 to drive the H-shaped frame 19 to move. The H-shaped frame 19 moves to drive the tensioning wheel 11 to adjust its position. The tensioning wheel 11 adjusts its position to drive the mesh belt 3 to move. The mesh belt 3 moves to quickly prop up the mesh belt 3. After the mesh belt 3 is propped up to a suitable position, the electromagnetic block 23 is closed, and the No. 4 spring 24 drives the clamping column 25 to clamp into the No. 2 port 21 to fix it, thereby realizing the function of quickly adjusting the tension of the mesh belt 3 of the high-temperature solid melting furnace to improve its use efficiency.

[0047] Step S3, the lubrication assembly is located above the tensioner 11, the No. 4 motor 33 rotates to drive the striking head 34 to rotate, the striking head 34 rotates to drive the No. 7 plate 31 to move, the No. 7 plate 31 moves to drive the No. 6 cylinder 30 to move, the No. 6 cylinder 30 moves to drive the No. 6 spring 36 to move, the No. 6 spring 36 moves to make the No. 7 plate 31 drive the guide head 32 to move, the guide head 32 moves to move away from the oil outlet pipe 28, at this time, the lubricating oil in the collection box 26 is discharged through the oil outlet pipe 28, and flows to the connection between the tensioner 11 and the H-shaped frame 19 through the guide head 32 to automatically lubricate it, when the No. 4 motor 33 stops, the tension of the No. 6 spring 36 forces the No. 7 plate 31 to drive the guide head 32 to block the oil outlet pipe 28, thereby realizing the function of automatic lubrication of the tensioner 11 of the high-temperature solid melting furnace, reducing wear and improving service life;

[0048] Step S4, the top of the support ring 38 is an arc-shaped edge to facilitate the connection of the air pipe. Ammonia or nitrogen enters the furnace body 8 through the air pipe connected to the air inlet head 37. When the air pipe is connected to the air inlet head 37, the support ring 38 is wrapped. The air pipe continues to move, driving the sealing ring 39 to move. The movement of the sealing ring 39 drives the bracket 43 to move. The movement of the bracket 43 drives the connecting block 42 to move. The movement of the connecting block 42 causes the bracket 43 to drive the No. 9 spring 44 to move. The No. 9 spring 44 moves to tightly connect the sealing ring 39 to the air pipe to prevent air leakage in the high-temperature solid melting furnace when entering the device, thereby realizing the function of preventing air leakage of the protective gas of the high-temperature solid melting furnace when entering the device and improving the connection sealing.

[0049] Working principle: the function of the furnace body 8 is to provide a place for parts processing, the function of the support seat 12 is to improve the support for the furnace body 8, the function of the furnace door inlet 4 is to facilitate the entry and exit of parts, and the function of the thermocouple 7 is to timely measure the temperature in the furnace, with high temperature measurement accuracy, and the temperature is uniform, adjustable and controllable. The cooling water jacket 9 can achieve rapid cooling, and the injection molded parts are quickly transported from the high temperature zone to the cooling section through the mesh belt 3 to achieve rapid cooling and heat treatment of the parts. The driving motor 13 drives the mesh belt 3 to move, and the movement of the mesh belt 3 drives the tensioning wheel 11 to rotate. The rotation of the tensioning wheel 11 is convenient for adjusting the tightness of the mesh belt 3, so that the entire movement can run smoothly. Through the present invention, the solid solution heat treatment of metal powder injection molded parts can be achieved, and the comprehensive mechanical properties of injection molded parts can be improved. The electromagnetic block 23 is started to generate magnetic force to drive the clamping column 25 to move. The clamping column 25 is made of iron. The movement of the clamping column 25 drives the No. 4 spring 24 to move. The No. 4 spring 24 moves The clamping column 25 is moved out of the No. 2 port 21. At this time, the moving head 16 moves to drive the support plate 46 to move. The support plate 46 moves to drive the No. 1 cylinder 18 to move. The No. 1 cylinder 18 moves to drive the support plate 46 to drive the H-shaped frame 19 to move. The H-shaped frame 19 moves to drive the tensioning wheel 11 to adjust its position. The tensioning wheel 11 adjusts its position to drive the mesh belt 3 to move. The mesh belt 3 moves to quickly prop it up. After the mesh belt 3 is propped up to a suitable position, the electromagnetic block 23 is closed, and the clamping column 25 is driven by the No. 4 spring 24 to clamp it into the No. 2 port 21 to fix it, thereby realizing the function of quickly adjusting the tension of the mesh belt 3 of the high-temperature solid melting furnace to improve its use efficiency. The lubrication component is located above the tensioning wheel 11. The No. 4 electric The rotation of the machine 33 drives the striking head 34 to rotate, the rotation of the striking head 34 drives the No. 7 plate 31 to move, the movement of the No. 7 plate 31 drives the No. 6 cylinder 30 to move, the movement of the No. 6 cylinder 30 drives the No. 6 spring 36 to move, the No. 6 spring 36 moves to make the No. 7 plate 31 drive the guide head 32 to move, the guide head 32 moves to move away from the oil outlet pipe 28, at this time, the lubricating oil in the collection box 26 is discharged through the oil outlet pipe 28, and flows to the connection between the tensioner 11 and the H-shaped frame 19 through the guide head 32 to automatically lubricate it, when the No. 4 motor 33 stops, the tension of the No. 6 spring 36 works the No. 7 plate 31 to drive the guide head 32 to block the oil outlet pipe 28, realizing the high-temperature solid melting furnace The tensioning wheel 11 has the function of automatic lubrication, reducing wear and increasing service life. The top of the support ring 38 has an arc-shaped edge, which is convenient for the connection of the air pipe. Ammonia or nitrogen enters the furnace body 8 through the air pipe connected to the air inlet head 37. When the air pipe is connected to the air inlet head 37, the support ring 38 is wrapped. The air pipe continues to move, driving the sealing ring 39 to move. The movement of the sealing ring 39 drives the bracket 43 to move. The movement of the bracket 43 drives the connecting block 42 to move. The movement of the connecting block 42 causes the bracket 43 to drive the No. 9 spring 44 to move. The No. 9 spring 44 moves to tightly connect the sealing ring 39 to the air pipe to prevent air leakage in the minute, thereby preventing the protective gas of the high-temperature solid melting furnace from leaking when entering the device and improving the connection sealing.

[0050] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A high temperature solid melting furnace for heat treatment of metal powder injection molding, characterized in that: The invention comprises a screw push rod (1), a screw motor (2), a mesh belt (3), a furnace door inlet (4), a heat-insulating fiber felt (5), a molybdenum wire heating tube (6), a thermocouple (7), a furnace body (8), a cooling water jacket (9), a furnace door (10), a tensioning wheel (11), a support seat (12), a driving motor (13) and an explosion-proof valve (14). The screw push rod (1) is connected to the screw motor (2). The furnace door inlet (4) is provided on the side of the cooling water jacket (9) to facilitate the metal powder injection molding parts to enter and exit the furnace. The parts can be pushed onto the surface of the mesh belt (3). The mesh belt (3) is formed by connecting molybdenum bars in series. The mesh belt (3) is located at the furnace door. A tensioning wheel (11) is provided on one side of the inlet (4) and one side of the mesh belt (3); a furnace body (8) is installed on one end of the cooling water jacket (9); a corundum tube is installed on the inner wall of the furnace body (8); thermal insulation fiber felt (5) is evenly distributed on the upper and lower positions of the corundum tube of the furnace body (8), and five layers are provided on the upper and lower positions; a ceramic insulating tube is installed on the inner wall of the furnace body (8); a plurality of molybdenum wire heating tubes (6) are wound on the ceramic insulating tube; an explosion-proof valve (14) is provided on the top of the furnace body (8); a tensioning wheel (11) adjustment component is installed on the outer wall of the mesh belt (3); the tensioning wheel (11) adjustment component is used to quickly adjust the position of the tensioning wheel (11); The tension wheel (11) adjustment assembly comprises a box (15), a moving head (16), a No. 1 rod (17), an H-shaped frame (19), and a clamping column (25). The box (15) is located on the outer wall of the mesh belt (3), the moving head (16) is located on the inner wall of the box (15), the No. 1 rod (17) is located on the inner wall of the box (15), a No. 1 cylinder (18) is installed on the outer wall of the No. 1 rod (17), the H-shaped frame (19) runs through the bottom of the box (15), the outer wall of the No. 1 cylinder (18) is installed with a support plate (46), and one end of the H-shaped frame (19) is connected to the outer wall of the support plate (46). The tension wheel (11) is located on the outer wall of the mesh belt (3). A No. 2 plate (20) is installed on the outer wall of the H-shaped frame (19) and the inner wall of the box body (15), and a No. 2 opening (21) is opened on the outer wall of the No. 2 plate (20), and a No. 3 cylinder (22) is installed through the outer wall of the support plate (46), and an electromagnetic block (23) is installed on the inner wall of the No. 3 cylinder (22), and a No. 4 spring (24) is installed on the outer wall of the electromagnetic block (23), and a clamping column (25) penetrates the outer wall of the No. 3 cylinder (22), and one end of the clamping column (25) is connected to one end of the No. 4 spring (24), and a lubrication component is installed on the outer wall of the H-shaped frame (19), and the function of the lubrication component is to provide lubrication for the tensioner (11); The lubrication assembly comprises a collection box (26), a flow diverter block (27), a flow guide head (32), a striking head (34), a No. 6 spring (36), and a No. 5 rod (29). The collection box (26) is located on the outer wall of the H-shaped frame (19), the flow diverter block (27) is located on the inner wall of the collection box (26), an oil outlet pipe (28) is installed through the bottom of the collection box (26), the No. 5 rod (29) is installed at the bottom of the collection box (26), and a No. 6 cylinder (30) is installed on the outer wall of the No. 5 rod (29). The outer wall of the rod (30) is provided with a seventh plate (31), the outer wall of the rod (29) is provided with a sixth plate (35), the sixth spring (36) is located on the outer wall of the sixth plate (35), and one end of the sixth spring (36) is connected to the outer wall of the seventh plate (31), the outer wall of the seventh plate (31) is provided with a guide head (32), the guide head (32) is conical, the outer wall of the rod (29) is provided with a fourth motor (33), and the output end of the fourth motor (33) is provided with a striking head (34); An air inlet head (37) is installed through the outer wall of the cooling water jacket (9), and a gas sealing component is installed on the outer wall of the air inlet head (37), and the gas sealing component is used to prevent gas leakage when protecting the gas from entering the high-temperature solid melting furnace; The air sealing assembly comprises a support ring (38), a sealing ring (39), an eighth rod (40), a ninth tube (41), and a bracket (43); the support ring (38) is located on the outer wall of the cooling water jacket (9); the sealing ring (39) penetrates the outer wall of the support ring (38); the eighth rod (40) is located on the inner wall of the support ring (38); the ninth tube (41) penetrates the outer wall of the eighth rod (40); the bracket (43) is located on the outer wall of the sealing ring (39); a connecting block (42) is installed on the outer wall of the bracket (43); one end of the connecting block (42) is connected to the outer wall of the ninth tube (41); a ninth spring (44) is installed on the outer wall of the bracket (43); one end of the ninth spring (44) is connected to the inner wall of the support ring (38).

2. A high temperature solid melting furnace for heat treatment of metal powder injection molding according to claim 1, characterized in that: The temperature of the molybdenum wire heating tube (6) can reach 1600° C. The cooling water jacket (9) is welded from stainless steel plates into a square sandwich shape, and circulating cooling water is passed through the middle of the sandwich. The mesh belt (3) reciprocates back and forth in a cycle, and parts are smoothly transported during the movement.

3. A high temperature solid melting furnace for heat treatment of metal powder injection molding according to claim 1, characterized in that: One end of the clamping column (25) can be clamped into the interior of the No. 2 port (21), and the No. 1 cylinder (18) moves with the support of the No. 1 rod (17).

4. A high temperature solid melting furnace for heat treatment of metal powder injection molding according to claim 1, characterized in that: The sixth cylinder (30) is moved by being supported by the fifth rod (29), and the guide head (32) closes the oil outlet pipe (28).

5. The high-temperature solid melting furnace for heat treatment of metal powder injection molding according to claim 1, characterized in that: The sealing ring (39) is made of rubber, and the No. 9 cylinder (41) moves with the support of the No. 8 rod (40).

6. A method for using a high-temperature solid melting furnace for heat treatment of metal powder injection molding, applicable to a high-temperature solid melting furnace for heat treatment of metal powder injection molding according to any one of claims 1 to 5, characterized in that: The method for using the solid melting furnace comprises the following steps: Step S1, the function of the furnace body (8) is to provide a place for parts processing, the function of the support seat (12) is to improve the support for the furnace body (8), the function of the furnace door inlet (4) is to facilitate the entry and exit of parts, the function of the thermocouple (7) is to timely measure the temperature in the furnace, the temperature measurement accuracy is high, the temperature is uniform, adjustable and controllable, the cooling water jacket (9) can achieve rapid cooling, the injection molded parts are quickly transported from the high temperature zone to the cooling section through the mesh belt (3), and the temperature is quickly reduced to perform a rapid cooling heat treatment process on the parts, the driving motor (13) drives the mesh belt (3) to move, the movement of the mesh belt (3) drives the tension wheel (11) to rotate, and the rotation of the tension wheel (11) facilitates the adjustment of the tightness of the mesh belt (3), so as to achieve smooth operation of the entire movement; Step S2, the No. 1 cylinder (18) moves to make the support plate (46) drive the H-shaped frame (19) to move, the H-shaped frame (19) moves to drive the tension wheel (11) to adjust its position, the tension wheel (11) adjusts its position to drive the mesh belt (3) to move, the mesh belt (3) moves to make it quickly propped up, after the mesh belt (3) is propped up to a suitable position, the electromagnetic block (23) is closed, and the No. 4 spring (24) drives the clamping column (25) to clamp into the No. 2 opening (21) to fix it; Step S3, the guide head (32) moves to remove the oil outlet pipe (28), and the lubricating oil in the collection box (26) is discharged through the oil outlet pipe (28), and flows through the guide head (32) to the connection between the tensioner (11) and the H-shaped frame (19) to automatically lubricate it. When the fourth motor (33) stops, the tension of the sixth spring (36) pulls the seventh plate (31) to drive the guide head (32) to block the oil outlet pipe (28); Step S4, the trachea continues to move to drive the sealing ring (39) to move, the sealing ring (39) moves to drive the bracket (43) to move, the bracket (43) moves to drive the connecting block (42) to move, the connecting block (42) moves to make the bracket (43) drive the No. 9 spring (44) to move, and the No. 9 spring (44) moves to tightly connect the sealing ring (39) and the trachea to prevent air leakage.

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