Uniform decomposition treatment device for chromium hot work die steel carbide

Abstract

The utility model relates to the technical field of steel die carbide treatment, in particular to a chromium hot work die steel carbide uniform decomposition treatment device which can comprehensively quench die steel, improve quenching efficiency and improve treatment quality. Comprising a heating furnace, a plurality of heaters are arranged in the heating furnace, a cooling chamber is connected to the bottom of the heating furnace, quenching water is contained in the cooling chamber, a sealing assembly is installed between the heating furnace and the cooling chamber, and the sealing assembly comprises two storage boxes, two sealing plates, two moving plates and two double-output electric telescopic rods. The lifting assembly is installed in the cooling chamber and makes contact with the sealing assembly, the top end of the lifting assembly is connected with the supporting assembly, the stirring assembly is installed on the left side wall of the cooling chamber, and the pushing assembly is installed at the bottom of the cooling chamber.

Description

Technical Field

[0001] The utility model relates to the technical field of carbide treatment of steel molds, in particular to a device for uniformly decomposing carbides of chromium-based hot work die steel. Background Technique

[0002] With the continuous development of the mold manufacturing industry and the increasingly harsh working conditions of molds, the requirements for the metallurgical quality, performance, service life, etc. of mold materials are constantly increasing. Hot work die steel is a high-alloy steel with a relatively high carbon content in the steel. During the smelting or hot working process, a large amount of carbides exist in the steel, and the size, morphology, and distribution of these carbides have a great impact on the service life and performance stability of the mold. During the smelting process, the mold steel needs to be repeatedly calcined and quenched to reduce the carbon content in the mold steel. A device for uniformly decomposing carbides of mold steel disclosed in the prior art with publication number CN210916150U includes a heating furnace. A cooling chamber is provided on one side of the heating furnace. The heating furnace is connected to the cooling chamber through a communication port. Sealing plates are provided on both sides of the communication port. The sealing plates are fixedly connected through a support net. A support frame is fixedly provided on one side of the support net. Mold steel is provided on the support frame. A first hydraulic telescopic rod is provided on one side of the sealing plate. The end of the first hydraulic telescopic rod away from the sealing plate penetrates the heating furnace and is connected to the output end of a first hydraulic cylinder. A cooling device is provided inside the cooling chamber. The cooling device includes a plurality of nozzles, and the nozzles are connected to a horizontal pipe. However, quenching the mold steel by spraying has a low quenching efficiency and affects the processing quality. Summary of the Utility Model

[0003] To solve the above technical problems, the utility model provides a device for uniformly decomposing carbides of chromium-based hot work die steel that can comprehensively quench the mold steel, improve the quenching efficiency, and improve the processing quality.

[0004] A carbide uniform decomposition treatment device for chromium-based hot work die steel of the utility model includes a heating furnace. A plurality of heaters are arranged inside the heating furnace. A cooling chamber is connected to the bottom of the heating furnace. Quenching water is contained inside the cooling chamber. A sealing assembly is installed between the heating furnace and the cooling chamber. A lifting assembly is installed inside the cooling chamber. The lifting assembly contacts the sealing assembly. The top end of the lifting assembly is connected to a supporting assembly. An agitating assembly is installed on the left side wall of the cooling chamber. A pushing assembly is installed at the bottom of the cooling chamber. The die steel is placed on the supporting assembly. The die steel is heated and calcined. At the same time, the sealing assembly isolates and seals between the heating furnace and the cooling chamber. After the calcination is completed, the lifting assembly drives the die steel to move into the cooling chamber. The pushing assembly is used to push the quenching water to move upward in a line, so that the die steel is immersed in the quenching water, making the die steel fully contact with the quenching water. At the same time, the agitating assembly agitates the quenching water to improve the quenching efficiency. During quenching, the sealing assembly fully isolates and seals between the heating furnace and the cooling chamber to avoid heat loss.

[0005] Preferably, the sealing assembly includes two storage boxes, two sealing plates, two moving plates and two double-output electric telescopic rods. The two storage boxes are fixedly installed at the left and right ends of the bottom of the heating furnace. The sealing plates are located inside the storage boxes, and the sealing plates are slidably inserted into the lower part of the heating furnace. Pushing grooves are formed on the front and rear side walls of the storage boxes. The moving plates are slidably installed in the pushing grooves, and the moving plates are connected to the side walls of the sealing plates. The two double-output electric telescopic rods are fixedly installed on the front and rear side walls of the heating furnace. The left and right telescopic ends of the double-output electric telescopic rods are fixedly connected to the moving plates. The heating furnace and the cooling chamber are isolated and sealed by the two sealing plates. After the die steel moves downward, the double-output electric telescopic rods are started to push the sealing plates to move in the storage boxes through the moving plates, so that the two sealing plates approach each other, completely isolating and sealing between the heating furnace and the cooling chamber, avoiding heat loss and reducing energy consumption.

[0006] Preferably, the lifting assembly includes a lifting plate, a first transmission, a threaded rod, a threaded sleeve, and two guiding sliders. The bottom end of the lifting plate is fixedly connected with the threaded sleeve. Guiding chutes are provided on the front and rear side walls of the cooling chamber. The guiding sliders are slidably installed in the guiding chutes, and the guiding sliders are fixedly installed at the front and rear ends of the lifting plate. The first transmission is fixedly installed at the bottom of the cooling chamber. The input end of the first transmission is connected to the driving motor. The output end of the first transmission passes through the bottom of the cooling chamber and is fixedly connected with the threaded rod. The threaded rod is screwed inside the threaded sleeve. Sealing blocks matching the sealing plates are provided at the left and right ends of the lifting plate. The driving motor drives the threaded rod to rotate through the first transmission, pushing the threaded sleeve to move upward. The lifting plate drives the guiding sliders to move in the guiding chutes, so that a sealed connection is formed between the lifting plate and the two sealing plates. After the calcination is completed, the driving motor rotates in reverse to drive the threaded rod to rotate, so that the threaded sleeve moves downward to drive the lifting plate to move into the cooling chamber, immersing the die steel in the quenching water and enabling the die steel to be in full contact with the quenching water.

[0007] Preferably, the supporting assembly includes a heat-resistant bracket. The heat-resistant bracket is installed on the top of the lifting plate, and the upper part of the heat-resistant bracket is hollowed out. The die steel is placed on the top of the heat-resistant bracket to support the die steel, increasing the height of the die steel. The hollow design enables the bottom of the die steel to be heated, improving the calcination effect.

[0008] Preferably, the pushing assembly includes a plurality of electric telescopic rods, a piston plate, a liquid level gauge, a drain pipe, a water supply pipe, and a discharge valve. The plurality of electric telescopic rods are respectively fixedly installed at the four corners of the bottom of the cooling chamber. The top ends of the electric telescopic rods are fixedly connected with the piston plate. A round hole matching the threaded sleeve is provided in the middle of the piston plate. The liquid level gauge is installed at the upper end of the inner wall of the cooling chamber. The drain pipe is connected to the lower end of the cooling chamber, and a discharge valve is installed on the drain pipe. The water supply pipe is connected to the upper part of the cooling chamber. A plurality of exhaust holes are provided at the upper left and right ends of the cooling chamber, and a protective mesh cover is installed outside the exhaust holes. After the threaded sleeve drives the lifting plate to move downward, the electric telescopic rods are started to push the piston plate upward, pushing the quenching water upward. The liquid level is detected through the liquid level gauge, so that the die steel is immersed in the quenching water and the die steel is in full contact with the quenching water. The steam is discharged out through the exhaust holes.

[0009] Preferably, the stirring assembly includes a second transmission, a motor, a turntable, and a plurality of stirring blades. The second transmission is fixedly installed at the upper part of the left side wall of the cooling chamber. The input end of the second transmission is connected to the output end of the motor. The output end of the second transmission passes through the side wall of the cooling chamber and is connected with the turntable. A plurality of stirring blades are installed on the turntable. The motor is started to drive the turntable to rotate through the second transmission, so that the stirring blades rotate to stir the quenching water, improving the quenching efficiency.

[0010] Preferably, a sealing door is hinged to the front end of the heating furnace, a switch handle is arranged on the sealing door, a support cylinder is fixedly connected to the bottom of the cooling chamber, and a support plate is fixedly connected to the bottom of the support cylinder; the equipment is supported by the support cylinder and the support plate to ensure stability during use, and the die steel can be conveniently taken and placed through the sealing door, which is convenient and practical.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The die steel is placed on the support assembly, and the die steel is heated and calcined. At the same time, the sealing assembly isolates and seals between the heating furnace and the cooling chamber. After the calcination is completed, the lifting assembly drives the die steel to move into the cooling chamber, and the quenching water line is pushed to move upward by the pushing assembly, so that the die steel is immersed in the quenching water, making the die steel fully contact with the quenching water. At the same time, the stirring assembly stirs the quenching water to improve the quenching efficiency. During quenching, the sealing assembly fully isolates and seals between the heating furnace and the cooling chamber to avoid heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is a front view structural diagram of the present utility model;

[0014] Figure 3 is a front view sectional structural diagram of the present utility model;

[0015] Figure 4 is a right view sectional structural diagram of the present utility model;

[0016] Figure 5 is a left view sectional structural diagram of the present utility model;

[0017] Reference numerals in the drawings: 1, heating furnace; 2, heater; 3, cooling chamber; 4, storage box; 5, sealing plate; 6, moving plate; 7, double-output electric telescopic rod; 8, lifting plate; 9, heat-resistant bracket; 10, first transmission; 11, threaded rod; 12, threaded sleeve; 13, guiding slider; 14, electric telescopic rod; 15, piston plate; 16, liquid level gauge; 17, second transmission; 18, motor; 19, turntable; 20, stirring blade; 21, exhaust hole; 22, protective mesh cover; 23, drain pipe; 24, water supply pipe; 25, discharge valve; 26, sealing door; 27, support cylinder; 28, support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive. Example 1

[0019] As shown Figures 1 to 4 in the figure, a plurality of heaters 2 are arranged inside the heating furnace 1. A cooling chamber 3 is connected to the bottom of the heating furnace 1. Quenching water is contained inside the cooling chamber 3. Two storage boxes 4 are fixedly installed at the left and right ends of the bottom of the heating furnace 1. A sealing plate 5 is located inside the storage box 4, and the sealing plate 5 is slidably inserted into the lower part of the heating furnace 1. Push grooves are formed on the front and rear side walls of the storage box 4. A moving plate 6 is slidably installed in the push groove, and the moving plate 6 is connected to the side wall of the sealing plate 5. Two double-output electric telescopic rods 7 are fixedly installed on the front and rear side walls of the heating furnace 1. The left and right telescopic ends of the double-output electric telescopic rod 7 are fixedly connected to the moving plate 6. A threaded sleeve 12 is fixedly connected to the bottom end of the lifting plate 8. Guide chutes are formed on the front and rear side walls of the cooling chamber 3. A guide slider 13 is slidably installed in the guide chute, and the guide slider 13 is fixedly installed at the front and rear ends of the lifting plate 8. A first transmission 10 is fixedly installed at the bottom of the cooling chamber 3. The input end of the first transmission 10 is connected to the drive motor. The output end of the first transmission 10 passes through the bottom of the cooling chamber 3 and is fixedly connected to a threaded rod 11. The threaded rod 11 is screwed inside the threaded sleeve 12. Sealing blocks matching the sealing plate 5 are formed at the left and right ends of the lifting plate 8. A heat-resistant support 9 is installed on the top of the lifting plate 8. The upper part of the heat-resistant support 9 is hollowed out;

[0020] The die steel is placed on the top of the heat-resistant support 9 to support the die steel and increase the height of the die steel. The hollow design enables the bottom of the die steel to be heated, improving the calcination effect. The drive motor drives the threaded rod 11 to rotate through the first transmission 10, pushing the threaded sleeve 12 to move upward. The lifting plate 8 drives the guide slider 13 to move in the guide chute, so that the lifting plate 8 is hermetically connected between the two sealing plates 5. After the calcination is completed, the drive motor rotates in reverse to drive the threaded rod 11 to rotate, so that the threaded sleeve 12 moves downward to drive the lifting plate 8 to move into the cooling chamber 3, immersing the die steel in the quenching water, enabling the die steel to be in full contact with the quenching water. The heating furnace 1 and the cooling chamber 3 are isolated and sealed by the two sealing plates 5. After the die steel moves downward, the double-output electric telescopic rod 7 is started to push the sealing plate 5 to move in the storage box 4 through the moving plate 6, so that the two sealing plates 5 approach each other, completely isolating and sealing between the heating furnace 1 and the cooling chamber 3, avoiding heat loss and reducing energy consumption. Example 2

[0021] As shown Figures 3 to 5As shown, on the basis of Embodiment 1, it further includes a plurality of electric telescopic rods 14 respectively fixedly installed at the four corners of the bottom of the cooling chamber 3. The top end of the electric telescopic rod 14 is fixedly connected with a piston plate 15. A round hole matching the threaded sleeve 12 is provided in the middle of the piston plate 15. The liquid level gauge 16 is installed at the upper end of the inner wall of the cooling chamber 3. The drain pipe 23 is connected to the lower end of the cooling chamber 3. A discharge valve 25 is installed on the drain pipe 23. The water supply pipe 24 is connected to the upper part of the cooling chamber 3. A plurality of exhaust holes 21 are opened at the upper left and right ends of the upper part of the cooling chamber 3. A protective mesh cover 22 is installed outside the exhaust holes 21. The second transmission 17 is fixedly installed on the upper part of the left side wall of the cooling chamber 3. The input end of the second transmission 17 is connected to the output end of the motor 18. The output end of the second transmission 17 passes through the side wall of the cooling chamber 3 and is connected with a turntable 19. A plurality of stirring blades 20 are installed on the turntable 19. The front end of the heating furnace 1 is hinged with a sealing door 26. A switch handle is provided on the sealing door 26. The support cylinder 27 is fixedly connected to the bottom of the cooling chamber 3. The bottom of the support cylinder 27 is fixedly connected with a support plate 28;

[0022] The equipment is supported by the support cylinder 27 and the support plate 28 to ensure stability during use. The die steel can be conveniently taken and placed through the sealing door 26, which is convenient and practical. After the threaded sleeve 12 drives the lifting plate 8 to move downward, the electric telescopic rod 14 is started to push the piston plate 15 upward, pushing the quenching water upward. The liquid level is detected by the liquid level gauge 16, so that the die steel is immersed in the quenching water, enabling the die steel to be in full contact with the quenching water. The steam is discharged outward through the exhaust holes 21. The motor 18 is started to drive the turntable 19 to rotate through the second transmission 17, so that the stirring blades 20 rotate to stir the quenching water, improving the quenching efficiency.

[0023] As Figures 1 to 5 As shown, for a carbide uniform decomposition treatment device of a chromium-based hot work die steel of the present utility model, during operation, the equipment is supported by the support cylinder 27 and the support plate 28. The sealing door 26 is opened to place the die steel on the heat-resistant support 9, and the die steel is heated and calcined. After the calcination is completed, the motor is driven to reverse to drive the threaded rod 11 to rotate, so that the threaded sleeve 12 moves downward to drive the lifting plate 8 to move into the cooling chamber 3. The double-output electric telescopic rod 7 is started to push the sealing plate 5 to move in the storage box 4 through the moving plate 6, so that the two sealing plates 5 approach each other, completely isolating and sealing between the heating furnace 1 and the cooling chamber 3 to avoid heat loss. The electric telescopic rod 14 is started to push the piston plate 15 upward, pushing the quenching water upward. The liquid level is detected by the liquid level gauge 16, so that the die steel is immersed in the quenching water, enabling the die steel to be in full contact with the quenching water. The steam is discharged outward through the exhaust holes 21. The motor 18 is started to drive the turntable 19 to rotate through the second transmission 17, so that the stirring blades 20 rotate to stir the quenching water. After the die steel is water-cooled, it is sent into the heating furnace 1 for heating again, and so on in sequence, so that the alternation of heating and quenching can be realized.

[0024] The first transmission 10, liquid level gauge 16, second transmission 17 and motor 18 of a carbide uniform decomposition treatment device for chromium-based hot work die steel of the present utility model are purchased on the market. Those skilled in the art only need to install and operate according to the attached operation manual, without the need for creative labor from those skilled in the art.

[0025] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A device for uniformly decomposing carbides of chromium hot working die steel, characterized in that: The invention comprises a heating furnace (1), wherein a plurality of heaters (2) are arranged inside the heating furnace (1), a cooling chamber (3) is arranged and connected to the bottom of the heating furnace (1), quenching water is filled inside the cooling chamber (3), a sealing component is installed between the heating furnace (1) and the cooling chamber (3), a lifting component is installed inside the cooling chamber (3), the lifting component is in contact with the sealing component, a supporting component is connected to the top of the lifting component, a stirring component is installed on the left side wall of the cooling chamber (3), and a pushing component is installed at the bottom of the cooling chamber (3).

2. The device for uniformly decomposing carbides of chromium hot working die steel according to claim 1, characterized in that: The sealing assembly comprises two storage boxes (4), two sealing plates (5), two movable plates (6) and two dual-output electric telescopic rods (7). The two storage boxes (4) are fixedly mounted at the left and right ends of the bottom of the heating furnace (1). The sealing plates (5) are located inside the storage boxes (4) and are slidably inserted into the lower part of the heating furnace (1). Push grooves are provided on the front and rear end side walls of the storage boxes (4). The movable plates (6) are slidably mounted in the push grooves and are connected to the side walls of the sealing plates (5). The two dual-output electric telescopic rods (7) are fixedly mounted on the front and rear end side walls of the heating furnace (1). The left and right telescopic ends of the dual-output electric telescopic rods (7) are fixedly connected to the movable plates (6).

3. The device for uniformly decomposing carbides of chromium hot working die steel as claimed in claim 2, characterized in that: The lifting assembly comprises a lifting plate (8), a first transmission (10), a threaded rod (11), a threaded sleeve (12) and two guide slide blocks (13); the bottom end of the lifting plate (8) is fixedly connected to the threaded sleeve (12); guide slide grooves are provided on the front and rear side walls of the cooling chamber (3); the guide slide blocks (13) are slidably mounted in the guide slide grooves; and the guide slide blocks (13) are fixedly mounted on the front and rear ends of the lifting plate (8); the first transmission (10) is fixedly mounted on the bottom of the cooling chamber (3); the input end of the first transmission (10) is connected to the drive motor; the output end of the first transmission (10) passes through the bottom of the cooling chamber (3) and is fixedly connected to the threaded rod (11); the threaded rod (11) is screwed into the inside of the threaded sleeve (12); and sealing blocks matching the sealing plate (5) are provided on the left and right ends of the lifting plate (8).

4. The device for uniformly decomposing carbides of chromium hot working die steel as claimed in claim 3, characterized in that: The support assembly comprises a heat-resistant bracket (9), which is mounted on the top of the lifting plate (8), and the upper part of the heat-resistant bracket (9) is hollowed out.

5. The device for uniformly decomposing carbides of chromium hot working die steel as claimed in claim 1, characterized in that: The pushing assembly comprises a plurality of electric telescopic rods (14), a piston plate (15), a liquid level gauge (16), a drainage pipe (23), a water supply pipe (24) and a discharge valve (25). The plurality of electric telescopic rods (14) are respectively fixedly mounted at the four corners of the bottom of the cooling chamber (3). The top end of the electric telescopic rod (14) is fixedly connected to the piston plate (15). The middle of the piston plate (15) is provided with a circular hole matching the threaded sleeve (12). The liquid level gauge (16) is mounted on the upper end of the inner wall of the cooling chamber (3). The drainage pipe (23) is connected to the lower end of the cooling chamber (3). The discharge valve (25) is mounted on the drainage pipe (23). The water supply pipe (24) is connected to the upper part of the cooling chamber (3). A plurality of exhaust holes (21) are provided at the left and right ends of the upper part of the cooling chamber (3). A protective mesh cover (22) is mounted outside the exhaust hole (21).

6. The device for uniformly decomposing carbides of chromium hot working die steel as claimed in claim 1, characterized in that: The stirring assembly comprises a second transmission (17), a motor (18), a rotating disk (19) and a plurality of stirring blades (20); the second transmission (17) is fixedly mounted on the upper portion of the left side wall of the cooling chamber (3); the input end of the second transmission (17) is connected to the output end of the motor (18); the output end of the second transmission (17) passes through the side wall of the cooling chamber (3) and is connected to the rotating disk (19); and the rotating disk (19) is mounted with a plurality of stirring blades (20).

7. The device for uniformly decomposing carbides of chromium hot working die steel as claimed in claim 1, characterized in that: A sealed door (26) is hingedly connected to the front end of the heating furnace (1), a switch handle is provided on the sealed door (26), a support tube (27) is fixedly connected to the bottom of the cooling chamber (3), and a support plate (28) is fixedly connected to the bottom of the support tube (27).

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