Continuous high-temperature siliconizing furnace

Abstract

The invention relates to the field of siliconizing furnaces, in particular to a continuous high-temperature siliconizing furnace which comprises a feeding replacement chamber, a sintering chamber, a discharging replacement chamber, a cooling chamber, a discharging chamber, a conveying assembly and a ventilation assembly, the conveying assembly is used for conveying workpieces, and the workpieces sequentially enter the feeding replacement chamber, the sintering chamber, the discharging replacement chamber, the cooling chamber and the discharging chamber through the conveying assembly; the feeding replacement chamber, the sintering chamber, the discharging replacement chamber, the cooling chamber and the discharging chamber are all internally connected to a ventilation assembly, the ventilation assembly is used for replacing indoor air into shielding gas and enabling the indoor gas to have certain pressure intensity, a heating assembly is arranged in the sintering chamber, and the feeding replacement chamber is used for reducing the oxygen content of workpieces; the sintering chamber is used for heat treatment of workpieces, and the cooling chamber is used for cooling the workpieces. Workpieces sequentially enter the feeding replacement chamber, the sintering chamber, the discharging replacement chamber, the cooling chamber and the discharging chamber to be treated, the siliconizing furnace does not need to be heated and cooled repeatedly, production efficiency is improved, and energy consumption is reduced.

Description

Technical Field

[0001] The present application relates to the field of siliconizing furnaces, and in particular to a continuous high-temperature siliconizing furnace. Background Art

[0002] Siliconizing furnaces are mainly used to infiltrate silicon into the matrix of other materials, such as metals, ceramic matrix composites, and carbon-carbon composites. This infiltration process is usually carried out under high temperature and specific pressure conditions to improve the performance of the material, such as improving surface hardness, corrosion resistance, wear resistance, and enhancing the stability of the material in high temperature or harsh environments.

[0003] With the continuous advancement of science and technology and the rapid development of the industrial field, the market demand for siliconizing furnaces continues to grow. Most of the existing siliconizing furnaces are single siliconizing furnaces, which have problems during use. Each time the equipment goes from loading to heating, and then to cooling and starting the furnace, it takes a long period of time. On average, each cycle takes 15 days. If large-scale production is required, the production capacity can only be increased by increasing the number of equipment.

[0004] The equipment repeatedly heats and cools down, resulting in large energy loss, high production costs, long equipment operation cycle, non-continuous material loading and unloading, and can only be loaded and unloaded within the equipment operation cycle, resulting in low production efficiency. Summary of the invention

[0005] In order to reduce energy loss, the present application provides a continuous high-temperature siliconizing furnace.

[0006] The present application provides a continuous high-temperature siliconizing furnace adopts the following technical solution: A continuous high-temperature siliconizing furnace comprises a feed displacement chamber, a sintering chamber, a discharging displacement chamber, a cooling chamber, a discharging chamber, a transmission component and a ventilation component, wherein the transmission component is used to transmit workpieces, and the workpieces enter the feed displacement chamber, the sintering chamber, the discharging displacement chamber, the cooling chamber and the discharging chamber in sequence via the transmission component, and the feed displacement chamber, the sintering chamber, the discharging displacement chamber, the cooling chamber and the discharging chamber are all connected to the ventilation component, and the ventilation component is used to replace the air in the room with protective gas and make the indoor gas have a certain pressure, a heating component is provided in the sintering chamber, the feed displacement chamber is used to reduce the oxygen content of the workpiece, the feed displacement chamber and the sintering chamber are used to heat treat the workpiece, and the cooling chamber is used to cool the workpiece.

[0007] By adopting the above technical solution, the workpieces are sequentially processed in the feed replacement chamber, sintering chamber, discharge replacement chamber, cooling chamber and discharge chamber. The siliconizing furnace does not need to repeatedly heat up and cool down, thereby improving production efficiency and reducing energy consumption.

[0008] Preferably, it also includes a first gate valve and a second gate valve, and the two ends of the sintering chamber are respectively connected to the feed displacement chamber and the discharge displacement chamber, the first gate valve and the second gate valve are both connected to the inner wall of the feed displacement chamber, the first gate valve is arranged on the side of the second gate valve away from the sintering chamber, the first gate valve is used to control the connection between the feed displacement chamber and the outside, and the second gate valve is used to control the connection between the feed displacement chamber and the sintering chamber.

[0009] By adopting the above technical solution, when the workpiece needs to be processed, the first gate valve is opened and the second gate valve is closed. At this time, the feed replacement chamber is connected to the outside world, the workpiece enters the feed replacement chamber, the first gate valve is closed, and the ventilation component is ventilated. After ventilation, the second gate valve is opened, and the workpiece is moved closer to the sintering chamber, thereby reducing the probability of external air polluting the sintering chamber and improving production quality.

[0010] Preferably, it also includes a third gate valve and a fourth gate valve, and the two ends of the cooling chamber are respectively connected to the discharge replacement chamber and the discharge chamber, and the third gate valve and the fourth gate valve are both connected to the inner wall of the discharge chamber. The third gate valve is arranged on the side of the fourth gate valve close to the cooling chamber, and the third gate valve is used to control the connection between the cooling chamber and the discharge chamber, and the fourth gate valve is used to control the connection between the discharge chamber and the outside world.

[0011] By adopting the above technical solution, the third gate valve and the fourth gate valve are both closed, and the ventilation component performs ventilation. When the workpiece is processed, the third gate valve is opened, and the workpiece enters the discharge chamber. The third gate valve is closed, and the fourth gate valve is opened, and the workpiece is away from the discharge chamber, reducing the probability of external air polluting the cooling chamber.

[0012] Preferably, it also includes a first gate valve and a second gate valve, wherein the first gate valve and the second gate valve are both connected to the inner wall of the discharge displacement chamber, the first gate valve is arranged on the side of the second gate valve close to the sintering chamber, the first gate valve is used to control the connection between the sintering chamber and the discharge displacement chamber, and the second gate valve is used to control the connection between the discharge displacement chamber and the cooling chamber.

[0013] By adopting the above technical solution, the first gate valve and the second gate valve reduce the probability of heat exchange between the sintering chamber and the cooling chamber, thereby reducing energy loss.

[0014] Preferably, it also includes an air source box and a transition box, the cooling chamber is provided with an air supply port and an air exchange port, the height of the air exchange port is greater than the height of the air supply port, the air exchange port is connected to the transition box through a first air pump, the air supply port is connected to the air source box, and the transition box is connected to the lower end of the sintering chamber.

[0015] By adopting the above technical solution, the temperature of the protective gas in the cooling chamber rises after heat exchange with the workpiece, and the heated gas is arranged in the upper part of the cooling chamber. The first air pump draws air so that the gas in the cooling chamber is discharged from the air exchange port and then enters the transition box for storage. The transition box is connected to the lower end of the sintering chamber. The gas in the transition box has a certain temperature, which can keep the sintering chamber warm and reduce energy loss.

[0016] Preferably, it also includes a first spring and a pressing block, the length direction of the sintering chamber is parallel to the length direction of the cooling chamber, the first air pump is arranged between the sintering chamber and the cooling chamber, and a switch is provided on the outer wall of the first air pump facing the cooling chamber, one end of the first spring is fixedly connected to the outer wall of the first air pump facing the cooling chamber, and the other end of the first spring is fixedly connected to the pressing block, and the end of the pressing block facing the first air pump is used to abut the switch, when the first spring is not subjected to external force, the pressing block is away from the switch, and the first air pump stops working, and when the first spring is compressed, the pressing block abuts the switch, and the first air pump starts.

[0017] By adopting the above technical solution, the start of the first air pump is controlled by controlling the state of the pressing block, so that the hot air in the cooling room is discharged to the transition box for storage.

[0018] Preferably, it also includes a first magnetic block, a second magnetic block and a memory alloy, the inner wall of the ventilation port is provided with a mounting groove, the first magnetic block is slidably connected to the groove wall of the mounting groove, the second magnetic block is fixedly connected to the end of the pressing block away from the first air pump, the first magnetic block and the second magnetic block repel each other, when the first magnetic block slides close to the second magnetic block, the pressing block approaches the switch, the memory alloy is arranged on the side of the first magnetic block away from the bottom of the mounting groove, one end of the memory alloy is fixedly connected to the inner wall of the ventilation port, and the other end of the memory alloy is fixedly connected to the first magnetic block.

[0019] By adopting the above technical solution, the memory alloy detects the gas temperature of the ventilation port. When the gas temperature of the ventilation port is greater than the highest preset temperature of the memory alloy, the memory alloy deforms, the first magnetic block approaches the second magnetic block, the pressing block abuts the switch, the first air pump starts working, and ventilation is performed. When the gas temperature of the ventilation port is lower than the lowest preset temperature of the memory alloy, the memory alloy restores its deformation, the first magnetic block moves away from the second magnetic block, the first spring pushes the pressing block away from the switch, and the first air pump stops working, thereby facilitating automatic control of ventilation.

[0020] Preferably, it also includes an elastic membrane, a second spring and a pull rope, the transition box is connected to the sintering chamber, the transition box is used to supply air to the sintering chamber, the outer wall of the transition box is provided with a control port, the control port is arranged on the side of the ventilation port close to the first magnetic block, the elastic membrane is fixedly connected to the inner wall of the control port and covers the control port, the inner wall of the ventilation port is provided with a placement groove, the placement groove and the installation groove are arranged opposite to each other, one end of the second spring is fixedly connected to the bottom of the placement groove, the other end of the second spring is fixedly connected to the memory alloy, one end of the pull rope is fixedly connected to the outer wall of the elastic membrane facing the cooling chamber, and the other end of the pull rope passes through the bottom of the installation groove and is connected to the end of the first magnetic block away from the memory alloy.

[0021] By adopting the above technical solution, the control valve controls the connection between the transition box and the sintering chamber. The gas in the transition box has a certain temperature. Further heating in the sintering chamber can reduce energy loss compared with the gas in the gas source box. When the gas in the transition box is reduced, the gas pressure is reduced, and the elastic membrane is deformed. The elastic membrane pulls the first magnetic block to move through the pull rope, and the second spring is deformed. The first magnetic block approaches the second magnetic block, and the gas in the cooling chamber is drawn into the transition box. New gas is added to the cooling chamber so that there is sufficient gas for the sintering chamber.

[0022] Preferably, it also includes a control block, the air source box is provided with an air outlet, the transition box is provided with an exhaust port, one end of the connecting pipe is coaxially fixedly connected to the inner wall of the air outlet, the other end of the connecting pipe is coaxially fixedly connected to the inner wall of the exhaust port, the outer wall of the connecting pipe is provided with an air supply port, the air supply port is connected to the feed replacement chamber, the control block is slidably connected to the inner wall of the connecting pipe, the control block is provided with a first connecting channel and a second connecting channel, the first connecting channel is used to connect the air supply port with the transition box, and the second connecting channel is used to connect the air supply port with the air source box.

[0023] By adopting the above technical solution, both the gas source box and the transition box can supply gas to the feed replacement chamber. When the gas pressure in the transition box is too high, the gas in the transition box can be used for ventilation of the feed replacement chamber, reducing energy loss.

[0024] Preferably, it also includes a connecting column, a control rod and a limit block, the connecting pipe is arranged below the elastic membrane, the upper end of the connecting pipe is provided with a through hole, the control block covers the through hole, the connecting column is fixedly connected to the upper end of the control block, the connecting column extends out of the through hole, one end of the control rod is fixedly connected to the outer wall of the elastic membrane facing the cooling chamber, the other end of the control rod is fixedly connected to the limit block, the limit block is provided with a limit groove, and the limit groove is used for the connecting column to be embedded.

[0025] By adopting the above technical solution, when the elastic membrane is deformed, the connecting column is pulled to move by the control rod and the limit block, so that the control block moves in the connecting pipe. When the gas pressure in the transition box is too high, the control block slides to connect the first connecting channel with the air supply port, which facilitates the discharge of the gas in the transition box and prevents safety hazards caused by excessive pressure in the transition box.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The workpieces are sequentially placed in the feed replacement chamber, sintering chamber, discharge replacement chamber, cooling chamber and discharge chamber for processing. The siliconizing furnace does not need to be repeatedly heated and cooled, which improves production efficiency and reduces energy consumption. 2. The temperature of the protective gas in the cooling chamber rises after heat exchange with the workpiece. The heated gas is arranged at the upper part of the cooling chamber. The first air pump exhausts the gas in the cooling chamber from the air exchange port and then enters the transition box for storage. The transition box is connected to the lower end of the sintering chamber. The gas in the transition box has a certain temperature, which can keep the sintering chamber warm and reduce energy loss. 3. The control valve controls the connection between the transition box and the sintering chamber. The gas in the transition box has a certain temperature. Further heating in the sintering chamber can reduce energy loss compared to the gas in the gas source box. When the gas in the transition box decreases and the gas pressure decreases, the elastic membrane deforms, and the elastic membrane pulls the first magnetic block to move through the pull rope. The second spring deforms, and the first magnetic block approaches the second magnetic block, drawing the gas in the cooling chamber into the transition box. New gas is added to the cooling chamber so that there is sufficient gas for the sintering chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a continuous high-temperature siliconizing furnace.

[0028] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0029] Figure 3 It is a partial cross-sectional view of a continuous high-temperature siliconizing furnace.

[0030] Description of reference numerals: 1. Transmission assembly; 11. Bracket; 12. First conveyor platform; 13. First conveyor belt; 14. Second conveyor platform; 15. Second conveyor belt; 16. Push-pull electric cylinder; 21. Feed replacement chamber; 22. Sintering chamber; 221. Heating assembly; 2211. Heating tube; 2212. Intelligent temperature controller; 222. Heating chamber; 23. Discharge replacement chamber; 24. Cooling chamber; 241. Air supply port; 242. Ventilation port; 2421. Mounting slot; 2422. Placement slot; 25. Discharge chamber; 3. Ventilation assembly; 31. Ventilation element; 311. Intelligent barometer; 312. Ventilation pump; 32. Transition box; 321. Control port; 322. Exhaust port; 33 , air source box; 331, air outlet; 34, first air pump; 341, switch; 35, first spring; 36, pressing block; 371, first magnetic block; 372, second magnetic block; 38, second spring; 39, memory alloy; 4, auxiliary components; 41, first gate valve; 42, second gate valve; 43, third gate valve; 44, fourth gate valve; 45, first gate valve; 46, second gate valve; 5, control component; 51, elastic membrane; 52, pull rope; 53, connecting pipe; 531, air supply port; 532, through-hole; 54, control block; 541, first connecting channel; 542, second connecting channel; 55, connecting column; 56, control rod; 57, limit block; 571, limit groove. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses a continuous high temperature siliconizing furnace. Figure 1 A continuous high-temperature siliconizing furnace includes a transmission component 1, a feed replacement chamber 21, a sintering chamber 22, a discharge replacement chamber 23, a cooling chamber 24, a discharge chamber 25, a ventilation component 3, an auxiliary component 4 and a control component 5.

[0033] The transmission assembly 1 is used to transmit the workpiece, the workpiece is placed in the crucible, and the crucible is placed on the transmission assembly 1. The transmission assembly 1 includes a bracket 11, a first conveyor platform 12, a first conveyor belt 13, a second conveyor platform 14, and a second conveyor belt 15. The first conveyor platform 12 and the second conveyor platform 14 are fixedly connected to the upper end of the bracket 11. The length direction of the first conveyor platform 12 is parallel to the length direction of the second conveyor platform 14. The first conveyor belt 13 and the second conveyor belt 15 are both arranged between the first conveyor platform 12 and the second conveyor platform 14. The length direction of the first conveyor belt 13 is perpendicular to the length direction of the first conveyor platform 12. The length direction of the second conveyor belt 15 is parallel to the length direction of the first conveyor belt 13. The two ends of the first conveyor belt 13 respectively abut the first conveyor platform 12 and the second conveyor platform 14. The first conveyor belt 13 and the second conveyor belt 15 respectively abut the two ends of the second conveyor platform 14. The upper surfaces of the first conveyor platform 12, the first conveyor belt 13, the second conveyor platform 14 and the second conveyor belt 15 are flush. Both ends of the first conveyor belt 13 and the second conveyor belt 15 are connected to the bracket 11 through rotating rollers. The driving motor drives the rotating rollers to rotate to drive the first conveyor belt 13 and the second conveyor belt 15 to move.

[0034] Reference Figure 1 , the feed replacement chamber 21 is at the upper end of the first conveyor platform 12, and the feed replacement chamber 21 is used to reduce the oxygen content of the workpiece. The sintering chamber 22 is arranged at the upper end of the first conveyor belt 13, and a heating component 221 is arranged in the sintering chamber 22. The sintering chamber 22 includes a plurality of heating chambers 222, and the plurality of heating chambers 222 are evenly spaced along the extension direction of the first conveyor belt 13. There are a plurality of heating components 221, and the heating components 221 and the heating chambers 222 are arranged one by one. The heating component 221 includes a heating tube 2211 and an intelligent temperature controller 2212, and the heating tube 2211 is electrically connected to the intelligent temperature controller 2212. The sintering chamber 22 is used for heat treatment of the workpiece. The discharge replacement chamber 23 is arranged at the upper end of the second conveyor platform 14, and the cooling chamber 24 and the discharge chamber 25 are arranged at the upper end of the second conveyor belt 15. The cooling chamber 24 is used to cool the workpiece.

[0035] The workpiece enters the feed displacement chamber 21, the sintering chamber 22, the discharge displacement chamber 23, the cooling chamber 24 and the discharge chamber 25 in sequence through the transmission component 1. The feed displacement chamber 21, the sintering chamber 22, the discharge displacement chamber 23, the cooling chamber 24 and the discharge chamber 25 can be interconnected and isolated from the outside air. The feed displacement chamber 21, the sintering chamber 22, the discharge displacement chamber 23, the cooling chamber 24 and the discharge chamber 25 are all connected to the ventilation component 3, and the ventilation component 3 is used to replace the indoor air with protective gas and make the indoor gas have a certain pressure.

[0036] Reference Figure 1The auxiliary component 4 includes a first gate valve 41, a second gate valve 42, a third gate valve 43, a fourth gate valve 44, a first gate valve 45 and a second gate valve 46. The first gate valve 41, the second gate valve 42, the third gate valve 43, the fourth gate valve 44, the first gate valve 45 and the second gate valve 46 are all controlled by a lifting cylinder. The two ends of the sintering chamber 22 are respectively connected to the feed displacement chamber 21 and the discharge displacement chamber 23. The first gate valve 41 and the second gate valve 42 are both connected to the inner wall of the feed displacement chamber 21. The first gate valve 41 is arranged on the side of the second gate valve 42 away from the sintering chamber 22. The first gate valve 41 is used to control the connection between the feed displacement chamber 21 and the outside, and the second gate valve 42 is used to control the connection between the feed displacement chamber 21 and the sintering chamber 22.

[0037] The two ends of the cooling chamber 24 are connected to the discharge replacement chamber 23 and the discharge chamber 25, respectively. The third gate valve 43 and the fourth gate valve 44 are both connected to the inner wall of the discharge chamber 25. The third gate valve 43 is arranged on the side of the fourth gate valve 44 close to the cooling chamber 24. The third gate valve 43 is used to control the connection between the cooling chamber 24 and the discharge chamber 25, and the fourth gate valve 44 is used to control the connection between the discharge chamber 25 and the outside. The first gate valve 45 and the second gate valve 46 are both connected to the inner wall of the discharge replacement chamber 23. The first gate valve 45 is arranged on the side of the second gate valve 46 close to the sintering chamber 22. The first gate valve 45 is used to control the connection between the sintering chamber 22 and the discharge replacement chamber 23, and the second gate valve 46 is used to control the connection between the discharge replacement chamber 23 and the cooling chamber 24.

[0038] Reference Figure 1 The transmission component 1 also includes a push-pull electric cylinder 16. Three push-pull electric cylinders 16 are correspondingly connected to the first conveying platform 12. The three push-pull electric cylinders 16 are all arranged on both sides of the first gate valve 41 and the second gate valve 42. One push-pull electric cylinder 16 is arranged close to the first gate valve 41, and the other two push-pull electric cylinders 16 are arranged close to the second gate valve 42. The first push-pull electric cylinder 16 is used to push the crucible between the first gate valve 41 and the second gate valve 42. The outer wall of the crucible is connected to an iron sheet. A magnet is fixedly connected to the piston rod of the second push-pull electric cylinder 16. The second push-pull electric cylinder 16 is used to pull the crucible out from between the first gate valve 41 and the second gate valve 42. The third push-pull electric cylinder 16 is used to push the crucible to move along the width direction of the first conveying platform 12, so that the crucible moves from the first conveying platform 12 to the first conveyor belt 13.

[0039] The second conveying platform 14 is connected to three push-pull electric cylinders 16, which are respectively arranged on both sides of the first gate valve 45 and the second gate valve 46. One push-pull electric cylinder 16 is arranged close to the first gate valve 45, and the other two push-pull electric cylinders 16 are arranged close to the second gate valve 46. The first push-pull electric cylinder 16 is used to push the crucible in between the first gate valve 45 and the second gate valve 46, the second push-pull electric cylinder 16 is used to pull the crucible out from between the first gate valve 45 and the second gate valve 46, and the third push-pull electric cylinder 16 is used to push the crucible to move along the width direction of the second conveying platform 14, so that the crucible moves from the second conveying platform 14 to the second conveyor belt 15.

[0040] Reference Figure 1 and Figure 2 The ventilation assembly 3 includes a ventilation component 31, a transition box 32, an air source box 33, a first air pump 34, a first spring 35, a pressing block 36, a first magnetic block 371, a second magnetic block 372, a second spring 38 and a memory alloy 39. The ventilation component 31 includes an intelligent barometer 311 and a ventilation pump 312. The intelligent barometer 311 is used to detect the indoor pressure. The ventilation pump 312 is electrically connected to the intelligent barometer 311. The intelligent barometer 311 is used to control the opening and closing of the ventilation pump 312. The gas pressure in the feed replacement chamber 21, the sintering chamber 22, the discharge replacement chamber 23, the cooling chamber 24 and the discharge chamber 25 is slightly greater than the outside air.

[0041] The transition box 32 is connected to the lower end of the sintering chamber 22. The cooling chamber 24 is provided with a gas supply port 241 and a gas exchange port 242. The height of the gas exchange port 242 is greater than that of the gas supply port 241. The gas exchange port 242 is connected to the transition box 32 through the first air pump 34. The gas supply port 241 is connected to the air source box 33 through the gas exchange member 31. The discharge chamber 25 is connected to the air source box 33 through the gas exchange member 31. The air source box 33 supplies air to the feed replacement chamber 21, the cooling chamber 24 and the discharge chamber 25 in one direction.

[0042] Reference Figure 2 The first air pump 34 is arranged between the sintering chamber 22 and the cooling chamber 24. A switch 341 is provided on the outer wall of the first air pump 34 facing the cooling chamber 24. One end of the first spring 35 is fixedly connected to the outer wall of the first air pump 34 facing the cooling chamber 24. The other end of the first spring 35 is fixedly connected to the pressing block 36. The end of the pressing block 36 facing the first air pump 34 is used to abut the switch 341. When the first spring 35 is not subjected to external force, the pressing block 36 is away from the switch 341, and the first air pump 34 stops working. When the first spring 35 is compressed, the pressing block 36 abuts the switch 341, and the first air pump 34 starts.

[0043] Reference Figure 1 and Figure 2, the ventilation port 242 is provided with a mounting groove 2421 on the inner wall facing the discharge displacement chamber 23, the first magnetic block 371 is slidably connected to the groove wall of the mounting groove 2421, the sliding direction of the first magnetic block 371 is parallel to the length direction of the cooling chamber 24, the second magnetic block 372 is fixedly connected to the end of the pressing block 36 away from the first air pump 34, the first magnetic block 371 and the second magnetic block 372 repel each other, when the first magnetic block 371 slides close to the second magnetic block 372, the pressing block 36 approaches the switch 341. The ventilation port 242 is provided with a placement groove 2422 on the inner wall facing the feed displacement chamber 21, the placement groove 2422 and the mounting groove 2421 are arranged oppositely, one end of the second spring 38 is fixedly connected to the groove bottom of the placement groove 2422, the other end of the second spring 38 is fixedly connected to one end of the memory alloy 39, and the other end of the memory alloy 39 is fixedly connected to the first magnetic block 371.

[0044] Reference Figure 1 and Figure 2 The control assembly 5 includes an elastic membrane 51, a pull rope 52, a connecting pipe 53, a control block 54, a connecting column 55, a control rod 56 and a stop block 57. The transition box 32 is connected to the sintering chamber 22 through the ventilation member 31. The transition box 32 is used to supply air to the sintering chamber 22. The outer wall of the transition box 32 is provided with a control port 321. The control port 321 is provided on the side of the ventilation port 242 close to the first magnetic block 371. The elastic membrane 51 is fixedly connected to the inner wall of the control port 321 and covers the control port 321. One end of the pull rope 52 is fixedly connected to the outer wall of the elastic membrane 51 facing the cooling chamber 24, and the other end of the pull rope 52 passes through the bottom of the mounting groove 2421 and is connected to the end of the first magnetic block 371 away from the memory alloy 39.

[0045] The air source box 33 is provided with an air outlet 331, the transition box 32 is provided with an exhaust port 322, one end of the connecting tube 53 is coaxially fixedly connected to the inner wall of the air outlet 331, and the other end of the connecting tube 53 is coaxially fixedly connected to the inner wall of the exhaust port 322. The connecting tube 53 is arranged below the elastic membrane 51, and an air supply port 531 is provided on the outer wall of the connecting tube 53. The air supply port 531 is connected to the feed replacement chamber 21 through the ventilation component 31 for supplying air to the feed replacement chamber 21.

[0046] Reference Figure 1 and Figure 3 The control block 54 is slidably connected to the inner wall of the connecting pipe 53. The control block 54 is provided with a first connecting channel 541 and a second connecting channel 542. The first connecting channel 541 is used to connect the air supply port 531 with the transition box 32, and the second connecting channel 542 is used to connect the air supply port 531 with the air source box 33.

[0047] Reference Figure 2A through hole 532 is provided at the upper end of the connecting pipe 53, and the control block 54 covers the through hole 532. The connecting column 55 is fixedly connected to the upper end of the control block 54, and the connecting column 55 extends out of the through hole 532. One end of the control rod 56 is fixedly connected to the outer wall of the elastic membrane 51 facing the cooling chamber 24, and the other end of the control rod 56 is fixedly connected to the limit block 57. The limit block 57 is provided with a limit groove 571. The upper end of the connecting column 55 is embedded in the limit groove 571. The deformation of the elastic membrane 51 pushes the connecting column 55 to move, so that the control block 54 moves.

[0048] The implementation principle of a continuous high-temperature siliconizing furnace in an embodiment of the present application is as follows: a workpiece is placed in a crucible, and a transmission component 1 transports the workpiece so that the workpiece enters the feed displacement chamber 21, the sintering chamber 22, the discharge displacement chamber 23, the cooling chamber 24 and the discharge chamber 25 for processing in sequence, and the hot air in the cooling chamber 24 is recovered into the transition box 32, and the transition box 32 is used to supply air to the sintering chamber 22. When the air pressure in the transition box 32 is too low to supply air to the sintering chamber 22, the control component 5 controls the first air pump 34 to exhaust air so that the air pressure in the transition box 32 is within a normal range. When the air pressure in the transition box 32 is too high to easily cause safety hazards, the transition box 32 discharges the gas to replace the air in the feed displacement chamber 21.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A continuous high temperature siliconizing furnace, characterized in that: The invention comprises a feed displacement chamber (21), a sintering chamber (22), a discharge displacement chamber (23), a cooling chamber (24), a discharge chamber (25), a transmission component (1) and a ventilation component (3), wherein the transmission component (1) is used to transmit workpieces, and the workpieces enter the feed displacement chamber (21), the sintering chamber (22), the discharge displacement chamber (23), the cooling chamber (24) and the discharge chamber (25) in sequence through the transmission component (1), and the feed displacement chamber (21), the sintering chamber (22), the discharge displacement chamber (23), the cooling chamber (24) and the discharge chamber (25) in sequence. The displacement chamber (23), the cooling chamber (24) and the discharge chamber (25) are all connected to a ventilation assembly (3), the ventilation assembly (3) is used to replace the air in the chamber with protective gas and make the gas in the chamber have a certain pressure, the sintering chamber (22) is provided with a heating assembly (221), the feed displacement chamber (21) is used to reduce the oxygen content of the workpiece, the feed displacement chamber (21) and the sintering chamber (22) are used to heat treat the workpiece, and the cooling chamber (24) is used to cool the workpiece.

2. A continuous high temperature siliconizing furnace according to claim 1, characterized in that: The sintering chamber (22) further comprises a first gate valve (41) and a second gate valve (42). The two ends of the sintering chamber (22) are respectively connected to the feed displacement chamber (21) and the discharge displacement chamber (23). The first gate valve (41) and the second gate valve (42) are both connected to the inner wall of the feed displacement chamber (21). The first gate valve (41) is arranged on a side of the second gate valve (42) away from the sintering chamber (22). The first gate valve (41) is used to control the connection between the feed displacement chamber (21) and the outside, and the second gate valve (42) is used to control the connection between the feed displacement chamber (21) and the sintering chamber (22).

3. A continuous high temperature siliconizing furnace according to claim 2, characterized in that: The cooling chamber (24) further comprises a third gate valve (43) and a fourth gate valve (44); the two ends of the cooling chamber (24) are respectively connected to the discharge replacement chamber (23) and the discharge chamber (25); the third gate valve (43) and the fourth gate valve (44) are both connected to the inner wall of the discharge chamber (25); the third gate valve (43) is arranged on a side of the fourth gate valve (44) close to the cooling chamber (24); the third gate valve (43) is used to control the connection between the cooling chamber (24) and the discharge chamber (25); and the fourth gate valve (44) is used to control the connection between the discharge chamber (25) and the outside.

4. A continuous high temperature siliconizing furnace according to claim 3, characterized in that: The invention also comprises a first gate valve (45) and a second gate valve (46), wherein the first gate valve (45) and the second gate valve (46) are both connected to the inner wall of the discharge displacement chamber (23), the first gate valve (45) is arranged on a side of the second gate valve (46) close to the sintering chamber (22), the first gate valve (45) is used to control the communication between the sintering chamber (22) and the discharge displacement chamber (23), and the second gate valve (46) is used to control the communication between the discharge displacement chamber (23) and the cooling chamber (24).

5. A continuous high temperature siliconizing furnace according to claim 4, characterized in that: It also includes an air source box (33) and a transition box (32); the cooling chamber (24) is provided with an air supply port (241) and an air exchange port (242); the height of the air exchange port (242) is greater than the height of the air supply port (241); the air exchange port (242) is connected to the transition box (32) via a first air pump (34); the air supply port (241) is connected to the air source box (33); and the transition box (32) is connected to the lower end of the sintering chamber (22).

6. A continuous high temperature siliconizing furnace according to claim 5, characterized in that: The invention also comprises a first spring (35) and a pressing block (36); the length direction of the sintering chamber (22) is parallel to the length direction of the cooling chamber (24); the first air pump (34) is arranged between the sintering chamber (22) and the cooling chamber (24); a switch (341) is arranged on the outer wall of the first air pump (34) facing the cooling chamber (24); one end of the first spring (35) is fixedly connected to the outer wall of the first air pump (34) facing the cooling chamber (24); the other end of the first spring (35) is fixedly connected to the pressing block (36); one end of the pressing block (36) facing the first air pump (34) is used to abut the switch (341); when the first spring (35) is not subjected to external force, the pressing block (36) is away from the switch (341), and the first air pump (34) stops working; when the first spring (35) is compressed, the pressing block (36) abuts the switch (341), and the first air pump (34) starts.

7. A continuous high temperature siliconizing furnace according to claim 6, characterized in that: The invention also comprises a first magnetic block (371), a second magnetic block (372) and a memory alloy (39); the inner wall of the ventilation port (242) is provided with a mounting groove (2421); the first magnetic block (371) is slidably connected to the groove wall of the mounting groove (2421); the second magnetic block (372) is fixedly connected to an end of the pressing block (36) away from the first air pump (34); the first magnetic block (371) and the second magnetic block (372) repel each other; when the first magnetic block (371) slides close to the second magnetic block (372), the pressing block (36) approaches the switch (341); the memory alloy (39) is arranged on a side of the first magnetic block (371) away from the bottom of the mounting groove (2421); one end of the memory alloy (39) is fixedly connected to the inner wall of the ventilation port (242); and the other end of the memory alloy (39) is fixedly connected to the first magnetic block (371).

8. A continuous high temperature siliconizing furnace according to claim 7, characterized in that: The invention also comprises an elastic membrane (51), a second spring (38) and a pull rope (52); the transition box (32) is connected to the sintering chamber (22); the transition box (32) is used to supply air to the sintering chamber (22); the outer wall of the transition box (32) is provided with a control port (321); the control port (321) is provided on a side of the ventilation port (242) close to the first magnetic block (371); the elastic membrane (51) is fixedly connected to the inner wall of the control port (321) and covers the control port (321); the inner wall of the ventilation port (242) is provided with a The placement groove (2422) and the installation groove (2421) are arranged opposite to each other, one end of the second spring (38) is fixedly connected to the bottom of the placement groove (2422), the other end of the second spring (38) is fixedly connected to the memory alloy (39), one end of the pull rope (52) is fixedly connected to the outer wall of the elastic membrane (51) facing the cooling chamber (24), and the other end of the pull rope (52) passes through the bottom of the installation groove (2421) and is connected to one end of the first magnetic block (371) facing away from the memory alloy (39).

9. A continuous high temperature siliconizing furnace according to claim 8, characterized in that: The invention also comprises a control block (54), wherein the gas source box (33) is provided with a gas outlet (331), the transition box (32) is provided with an exhaust port (322), one end of the connecting pipe (53) is coaxially fixedly connected to the inner wall of the gas outlet (331), the other end of the connecting pipe (53) is coaxially fixedly connected to the inner wall of the exhaust port (322), the outer wall of the connecting pipe (53) is provided with a gas supply port (531), the gas supply port (531) is connected to the feed replacement chamber (21), the control block (54) is slidably connected to the inner wall of the connecting pipe (53), the control block (54) is provided with a first connecting channel (541) and a second connecting channel (542), the first connecting channel (541) is used to connect the gas supply port (531) with the transition box (32), and the second connecting channel (542) is used to connect the gas supply port (531) with the gas source box (33).

10. A continuous high temperature siliconizing furnace according to claim 9, characterized in that: It also includes a connecting column (55), a control rod (56) and a limit block (57), wherein the connecting pipe (53) is arranged below the elastic membrane (51), the upper end of the connecting pipe (53) is provided with a through hole (532), the control block (54) covers the through hole (532), the connecting column (55) is fixedly connected to the upper end of the control block (54), the connecting column (55) extends out of the through hole (532), one end of the control rod (56) is fixedly connected to the outer wall of the elastic membrane (51) facing the cooling chamber (24), the other end of the control rod (56) is fixedly connected to the limit block (57), the limit block (57) is provided with a limit groove (571), and the limit groove (571) is used for the connecting column (55) to be embedded.

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