High standard performance high pressure vacuum air quenching furnace

Abstract

The utility model discloses a high -standard performance's high pressure vacuum air quenching furnace belongs to high pressure vacuum air quenching furnace field, including furnace body and install four installing rod in the top surface of furnace body, this high -standard performance's high pressure vacuum air quenching furnace through setting heating box, electric heating tube, first fan, second fan and cooling coil, utilize the effect of heating box and electric heating tube, seal the assembly when heating and close heating box, make heating box inside form a closed space, and heating assembly heats work piece in closed space, effectively promote heating effect and heating efficiency, to reduce the heat exchange of heat from the furnace inner wall and cooling coil and outside, reduce heat loss, combine the effect of cooling coil, first fan and second fan, form cold air circulation, and then can to the work piece of heating finish and carry out the quick cooling temperature reduction processing of heating, reduce the load of first fan and second fan, improved the stability of the device.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-pressure vacuum quenching furnaces, specifically relating to a high-performance high-pressure vacuum quenching furnace. Background Technology

[0002] Quenching, designed specifically for high-temperature experiments and materials research, provides stable and accurate temperature control, enabling annealing and quenching of samples at high temperatures to meet experimental production needs. Commonly found in university laboratories and corporate testing facilities, it has wide applications in metal annealing, catalysts, new materials, molds, and aerospace. It is primarily used for vacuum gas quenching of materials such as tool and die steel, alloy steel, high-speed steel, and ultra-high-strength steel. It has no special requirements on the shape of the workpieces loaded into the furnace, resulting in minimal deformation and excellent cooling after gas quenching. It is also used for bright quenching of bearing steel, elastic alloys, stainless steel, and for vacuum heat treatment of magnetic materials. The vacuum gas quenching furnace has a molybdenum foil furnace chamber or a graphite furnace liner (with graphite felt as the heat insulation screen).

[0003] However, since both heating and cooling are located inside the same cavity, the cooling pipes cannot work when heating, which causes the temperature of the cooling fan to remain high. When cooling is needed, the cooling fan is still at a high temperature, which increases the workload of the cooling fan and affects its stability. Utility Model Content

[0004] The purpose of this invention is to provide a high-performance high-pressure vacuum quenching furnace to solve the problem mentioned in the background art, where heating and cooling are both located inside the same cavity. During heating, the cooling pipe cannot work, which causes the temperature of the cooling fan to remain high. When cooling is needed, the cooling fan is still at a high temperature, resulting in a greater workload for the cooling fan and affecting its operational stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a furnace body and four mounting rods installed on the top surface of the furnace body. A heating box with an opening on the left side is installed at the bottom end of the four mounting rods. Several U-shaped electric heating tubes are installed inside the heating box. Two U-shaped sliding rods are installed on the inner bottom surface of the heating box, and sliding plates are slidably mounted on the sliding rods. A placement platform is installed on the upper surface of the two sliding plates. A ventilation hole is opened on the right side of the heating box, and a first fan is installed inside the ventilation hole. Two support plates are installed on the right side of the inner wall of the furnace body, and a cooling coil is installed between the two support plates. An inlet pipe and an outlet pipe are respectively connected to the upper and lower ends of the cooling coil. One end of each inlet pipe extends through the furnace body. A second fan is installed on the right side of the inner wall of the furnace body. Two air inlet pipes are connected to the right side of the furnace body, and valves are installed on each of the two air inlet pipes. An exhaust pipe is connected to the upper surface of the heating box, and the top end of the exhaust pipe extends through the furnace body. A sealing assembly is provided on the heating box.

[0006] By adopting the above scheme, a heating box, electric heating tubes, a first fan, a second fan, and a cooling coil are set up. The heating box and electric heating tubes are used to seal the heating box during heating, creating a closed space inside. The heating components heat the workpiece within this closed space, effectively improving the heating effect and efficiency. This reduces heat exchange with the outside environment through the furnace wall and cooling coils, minimizing heat loss. Combined with the cooling coil, the first fan, and the second fan, cold air circulation is created, allowing for rapid cooling of the heated workpiece. This reduces the load on the first and second fans and improves the stability of the device.

[0007] In the above scheme, it should be noted that the first fan, the second fan, and the electric heating element are all electrically connected to an external power source.

[0008] In a preferred embodiment, the sealing assembly includes a sealing plate, and slots are provided at the four corners of the left side of the heating box. Pins are provided in the slots, and the sealing plate is installed at one end of the four pins. The sealing plate is in close contact with the heating box.

[0009] By adopting the above solution, a sealing plate and a pin are set up. The pin is accommodated by the slot, and the opening of the heating box is sealed in time by the sealing plate, thereby improving the airtightness of the heating box and accelerating the rise of the internal temperature. The sealing plate is fixed by the pin, which also makes it easy to disassemble and remove the sealing plate at any time.

[0010] In a preferred embodiment, a fixing plate is installed on the slide rod, and a spring is sleeved on the slide rod, with its two ends respectively fixedly connected to the fixing plate and the slide plate.

[0011] By adopting the above scheme, a fixed plate and a spring are set up. The fixed plate provides fixed support for one end of the spring. Combined with the elasticity of the spring itself, the slide plate is elastically supported. This allows the placement platform to extend out of the heating box by itself under the reaction force of the spring, thus improving the efficiency and speed of the placement platform when it moves.

[0012] In a preferred embodiment, a heat insulation sleeve is fitted onto the outer side of the spring, and the two ends of the heat insulation sleeve are respectively fixedly connected to a fixed plate and a sliding plate on the same side.

[0013] By adopting the above solution, a heat insulation sleeve is installed to wrap and insulate the spring, thereby preventing the spring from deforming due to high temperatures and improving the stability and robustness of the spring during operation.

[0014] In a preferred embodiment, an L-shaped support rod is installed on the left side of the bottom surface of the heating box, and a positioning plate is rotatably installed on the horizontal part of the support rod. The positioning plate is vertically arranged and abuts against the placement platform.

[0015] By adopting the above solution, a support rod and a positioning plate are set up. The support rod is used to rotate and support the positioning plate. Combined with the positioning plate being located on one side of the placement platform, the position of the placement platform is intercepted and fixed, which facilitates the rapid extension of the heating box from the placement platform later.

[0016] In a preferred embodiment, a sealing plate is provided on the right side of the heating box. The sealing plate is located to the right of the ventilation hole and is in close contact with the outer surface of the heating box. A driving component is provided on the sealing plate.

[0017] By adopting the above solution, the sealing plate is installed to seal the ventilation holes in a timely manner, thereby preventing heat from leaking out of the heating box from the ventilation holes when the electric heating element is heating, thus improving the sealing performance of the heating box.

[0018] In a preferred embodiment, the drive assembly includes a mounting plate mounted on the front side of the inner wall of the furnace body, and an electric push rod mounted on the rear side of the mounting plate, the output shaft of which is fixedly connected to the sealing plate.

[0019] By adopting the above solution, a mounting plate and an electric push rod are set up. The mounting plate is used to fix and support the electric push rod. Combined with the function of the electric push rod, the sealing plate can be easily moved away from one side of the ventilation hole at any time, thus making the operation convenient.

[0020] In a preferred embodiment, a circular baffle is installed at one end of the transverse portion of the support rod, and the outer diameter of the baffle is larger than the width of the positioning plate.

[0021] By adopting the above solution, a baffle is set up to block the end of the support rod, thereby preventing the positioning plate from falling off the support rod and further improving the firmness and stability of the positioning plate.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This high-performance high-pressure vacuum quenching furnace is equipped with a heating box, electric heating tubes, a first fan, a second fan, and a cooling coil. Utilizing the heating box and electric heating tubes, a sealing assembly encloses the heating box during heating, creating a sealed space. The heating components heat the workpiece within this enclosed space, effectively improving heating effect and efficiency. This reduces heat exchange with the outside environment through the furnace inner wall and cooling coils, minimizing heat loss. Combined with the cooling coils, the first and second fans, cold air circulation is created, allowing for rapid cooling of the heated workpiece. This reduces the load on the first and second fans and improves the stability of the device.

[0024] This high-performance high-pressure vacuum quenching furnace uses a sealing plate and a pin. The pin is accommodated by a slot, and the sealing plate seals the opening of the heating chamber in a timely manner, thereby improving the airtightness of the heating chamber and accelerating the rise of the internal temperature. The pin also secures the sealing plate and allows it to be easily removed at any time. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the main cross-sectional structure of the furnace body of this utility model;

[0027] Figure 3 This is a schematic diagram of the main cross-sectional structure of the heating box of this utility model.

[0028] In the diagram: 1. Furnace body; 2. Mounting rod; 3. Heating box; 4. Electric heating tube; 5. Slide rod; 6. Slide plate; 7. Placement platform; 8. Cooling coil; 9. Support plate; 10. Liquid inlet pipe; 11. Liquid outlet pipe; 12. First fan; 13. Second fan; 14. Air inlet pipe; 15. Fixing plate; 16. Spring; 17. Heat insulation sleeve; 18. Support rod; 19. Baffle; 20. Positioning plate; 21. Sealing plate; 22. Pin; 23. Mounting plate; 24. Electric push rod; 25. Sealing plate; 26. Exhaust pipe. Detailed Implementation

[0029] Please see Figure 1-3This utility model provides a high-performance high-pressure vacuum quenching furnace, including a furnace body 1 and four mounting rods 2 installed on the top surface of the furnace body 1. The mounting rods 2 are used to fix and support a heating box 3. The bottom end of the four mounting rods 2 is equipped with a heating box 3 with an opening on the left side. The heating box 3 is used to fix electric heating tubes 4. Several U-shaped electric heating tubes 4 are installed inside the heating box 3 to heat the heating components. Two U-shaped sliding rods 5 are installed on the bottom surface of the heating box 3. The sliding rods 5 are used to slide and support a sliding plate 6. A sliding plate is slidably mounted on the sliding rods 5. 6. The mounting platform 7 is fixedly supported by the sliding plate 6. The mounting platform 7 is installed on the upper surface of the two sliding plates 6. The heating component is placed on the mounting platform 7. The right side of the heating box 3 has a ventilation hole, which is used to accommodate the first fan 12. The first fan 12 is installed in the ventilation hole. Two support plates 9 are installed on the right side of the inner wall of the furnace body 1. The cooling coil 8 is fixedly supported by the support plates 9. The cooling coil 8 is installed between the two support plates 9. The upper and lower ends of the cooling coil 8 are respectively connected to the liquid inlet pipe 10 and the liquid outlet pipe 11. One end of each component extends through the furnace body 1. A second fan 13 is installed on the right side of the inner wall of the furnace body 1 to draw in outside air. Two air inlet pipes 14 are connected to the right side of the furnace body 1, and valves are installed on both air inlet pipes 14 to control the air inlet pipes 14. An exhaust pipe 26 is connected to the upper surface of the heating box 3, and the top end of the exhaust pipe 26 extends through the furnace body 1. A sealing component is provided on the heating box 3. By setting up the heating box 3, electric heating tube 4, first fan 12, second fan 13 and cooling coil 8, the heating box 3 and the electric heating tube 4 are used to draw in outside air. The function of the heating tube 4 is to seal the heating box 3 during heating, forming a closed space inside the heating box 3. The heating component heats the workpiece within this closed space, effectively improving the heating effect and efficiency. This reduces heat exchange between the furnace body 1 and the outside environment through the cooling coil 8, thus reducing heat loss. Combined with the functions of the cooling coil 8, the first fan 12, and the second fan 13, cold air circulation is formed, which can quickly cool the heated workpiece, reducing the load on the first fan 12 and the second fan 13 and improving the stability of the device.

[0030] The sealing assembly includes a sealing plate 21, which seals the heating chamber 3. Slots are provided at the four corners of the left side of the heating chamber 3 to accommodate pins 22. Pins 22 are installed within the slots to fix the sealing plate 21. The sealing plate 21 is installed at one end of each of the four pins 22, ensuring a tight fit between the sealing plate 21 and the heating chamber 3. By using the sealing plate 21 and pins 22, and utilizing the slots to accommodate the pins 22, the openings of the heating chamber 3 are promptly sealed, thereby improving the airtightness of the heating chamber 3 and accelerating the rise in internal temperature. The pins 22 also facilitate easy removal and disassembly of the sealing plate 21.

[0031] A fixing plate 15 is installed on the slide rod 5 to fix and support one end of the spring 16. The slide rod 5 is fitted with a spring 16, whose two ends are fixedly connected to the fixing plate 15 and the slide plate 6 respectively. The spring 16 provides elastic support to the slide plate 6. By setting the fixing plate 15 and the spring 16, the fixing plate 15 fixes and supports one end of the spring 16. Combined with the elasticity of the spring 16 itself, the slide plate 6 is elastically supported. This makes it easier for the placement platform 7 to extend out of the heating box 3 by the reaction force of the spring 16, thus improving the efficiency and speed of the movement of the placement platform 7.

[0032] A heat insulation sleeve 17 is fitted onto the outer side of the spring 16 to wrap the spring 16. The two ends of the heat insulation sleeve 17 are fixedly connected to the fixing plate 15 and the sliding plate 6 on the same side, respectively. By setting the heat insulation sleeve 17, the spring 16 is wrapped and insulated from the heat, thereby preventing the spring 16 from deforming due to high temperature and improving the stability and firmness of the spring 16 during operation.

[0033] An L-shaped support rod 18 is installed on the left side of the bottom surface of the heating box 3. The support rod 18 is used to rotate and support the positioning plate 20. The positioning plate 20 is rotatably installed on the horizontal part of the support rod 18. The positioning plate 20 is used to position the placement platform 7. The positioning plate 20 is vertically arranged and abuts against the placement platform 7. By setting the support rod 18 and the positioning plate 20, the positioning plate 20 is rotated and supported by the support rod 18. Combined with the position of the positioning plate 20 on one side of the placement platform 7, the position of the placement platform 7 is intercepted and fixed, so that the placement platform 7 can be quickly extended out of the heating box 3 later.

[0034] A sealing plate 25 is provided on the right side of the heating box 3 to block the ventilation hole. The sealing plate 25 is located on the right side of the ventilation hole and is tightly attached to the outer surface of the heating box 3. A driving component is provided on the sealing plate 25. By setting the sealing plate 25, the ventilation hole is sealed in time, thereby preventing heat from the heating box 3 from leaking out of the ventilation hole when the electric heating tube 4 is heating, thus improving the sealing performance of the heating box 3.

[0035] The drive assembly includes a mounting plate 23, which is used to fix and support the electric push rod 24. The mounting plate 23 is installed on the front side of the inner wall of the furnace body 1, and the electric push rod 24 is installed on the rear side of the mounting plate 23. The electric push rod 24 is used to fix and support the sealing plate 25 and further drive the sealing plate 25 to move. The output shaft of the electric push rod 24 is fixedly connected to the sealing plate 25. By setting the mounting plate 23 and the electric push rod 24, the electric push rod 24 is fixedly supported by the mounting plate 23. Combined with the function of the electric push rod 24, the sealing plate 25 can be easily moved away from one side of the ventilation hole at any time, thus making the operation convenient.

[0036] A circular baffle 19 is installed at one end of the horizontal portion of the support rod 18. The baffle 19 is used to block one end of the support rod 18, thereby preventing the positioning plate 20 from falling off. The outer diameter of the baffle 19 is larger than the width of the positioning plate 20. By setting the baffle 19, the end of the support rod 18 is blocked by the baffle 19 located at the end of the support rod 18, thereby preventing the positioning plate 20 from falling off the support rod 18, and further improving the firmness and stability of the positioning plate 20.

[0037] In use, open the furnace door on the furnace body 1, then move the sealing plate 21. The movement of the sealing plate 21 moves the pin 22, allowing the sealing plate 21 to be removed. The pin 22 is accommodated by the slot. Combined with the function of the sealing plate 21, the opening of the heating box 3 is sealed in time, thereby improving the airtightness of the heating box 3 and accelerating the rise of the internal temperature of the heating box 3. The sealing plate 21 is fixed by the pin 22, which also facilitates the removal and disassembly of the sealing plate 21 at any time. Then, rotate the positioning plate 20, changing it from a vertical state to a horizontal state. At this time, the sliding plate 6 moves forward on the sliding rod 5 under the reaction force of the spring 16. The spring 16 extends and stretches the heat insulation sleeve 17. The heat insulation sleeve 17 wraps and insulates the spring 16, thus preventing the spring 16 from deforming due to high temperature and improving the stability and firmness of the spring 16 during operation. The movement of the sliding plate 6 moves the placement platform 7, which gradually... Extend the heating chamber 3, then place the heating component on the placement platform 7, then reset the placement platform 7 and move it back into the heating chamber 3. Then rotate the positioning plate 20 to a vertical position again, reset the sealing plate 21, connect the inlet pipe 10 and outlet pipe 11 to the external cooling equipment, then close the furnace door on the furnace body 1, start the electric heating tube 4, the electric heating tube 4 heats up to increase the temperature inside the heating chamber 3, and heats the heating component. After heating is completed, turn off the electric heating tube 4, then start the external cooling equipment, the coolant enters the cooling coil 8, start the electric push rod 24, the first fan 12 and the second fan 13, open the valve on the air inlet pipe 14, at this time the electric push rod 24 drives the sealing plate 25 to move to one side, the sealing plate 25 gradually moves away from the ventilation hole, the second fan 13 absorbs the outside air through the air inlet pipe 14, after being cooled by the cooling coil 8, it is absorbed by the first fan 12 and transported into the heating chamber 3, the cooled air is discharged through the exhaust pipe 26.

Claims

1. A high-performance high-pressure vacuum quenching furnace, characterized in that: The furnace includes a furnace body (1) and four mounting rods (2) installed on the top surface inside the furnace body (1). A heating box (3) with an opening on the left side is installed at the bottom end of each of the four mounting rods (2). Several U-shaped electric heating tubes (4) are installed inside the heating box (3). Two U-shaped sliding rods (5) are installed on the bottom surface of the heating box (3). A sliding plate (6) is slidably mounted on the sliding rod (5). A placement platform (7) is installed on the upper surface of the two sliding plates (6). A ventilation hole is opened on the right side of the heating box (3), and a first fan (12) is installed inside the ventilation hole. Two support plates (9) are installed on the right side of the inner wall of the furnace body (1). A cooling coil (8) is installed between the plates (9). The upper and lower ends of the cooling coil (8) are respectively connected to an inlet pipe (10) and an outlet pipe (11). One end of the inlet pipe (10) and the outlet pipe (11) extends through the furnace body (1). A second fan (13) is installed on the right side of the inner wall of the furnace body (1). Two air inlet pipes (14) are connected to the right side of the furnace body (1). Valves are installed on both air inlet pipes (14). An exhaust pipe (26) is connected to the upper surface of the heating box (3). The top end of the exhaust pipe (26) extends through the furnace body (1). A sealing assembly is provided on the heating box (3).

2. The high-performance high-pressure vacuum quenching furnace according to claim 1, characterized in that: The sealing assembly includes a sealing plate (21). Slots are provided at the four corners of the left side of the heating box (3). Pins (22) are provided in the slots. The sealing plate (21) is installed at one end of the four pins (22). The sealing plate (21) is tightly fitted to the heating box (3).

3. The high-performance high-pressure vacuum quenching furnace according to claim 1, characterized in that: A fixing plate (15) is installed on the slide rod (5), and a spring (16) is sleeved on the slide rod (5) with its two ends fixedly connected to the fixing plate (15) and the slide plate (6) respectively.

4. The high-performance high-pressure vacuum quenching furnace according to claim 3, characterized in that: A heat insulation sleeve (17) is fitted on the outside of the spring (16), and the two ends of the heat insulation sleeve (17) are fixedly connected to the fixing plate (15) and the sliding plate (6) on the same side, respectively.

5. The high-performance high-pressure vacuum quenching furnace according to claim 1, characterized in that: An L-shaped support rod (18) is installed on the left side of the bottom surface of the heating box (3). A positioning plate (20) is rotatably installed on the horizontal part of the support rod (18). The positioning plate (20) is vertically arranged and abuts against the placement platform (7).

6. The high-performance high-pressure vacuum quenching furnace according to claim 1, characterized in that: A sealing plate (25) is provided on the right side of the heating box (3). The sealing plate (25) is located to the right of the ventilation hole. The sealing plate (25) is in close contact with the outer surface of the heating box (3). A driving component is provided on the sealing plate (25).

7. The high-performance high-pressure vacuum quenching furnace according to claim 6, characterized in that: The drive assembly includes a mounting plate (23), which is mounted on the front side of the inner wall of the furnace body (1). An electric push rod (24) is mounted on the rear side of the mounting plate (23), and the output shaft of the electric push rod (24) is fixedly connected to the sealing plate (25).

8. The high-performance high-pressure vacuum quenching furnace according to claim 5, characterized in that: A circular baffle (19) is installed at one end of the transverse portion of the support rod (18), and the outer diameter of the baffle (19) is greater than the width of the positioning plate (20).

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