A vacuum high-pressure gas quenching furnace with diverse flow channels and its processing method

Abstract

The present application discloses a vacuum high-pressure gas quenching furnace with diverse flow channels and a processing method thereof, relating to the field of heat treatment technology, comprising a gas quenching furnace body, a support frame provided at the bottom of the gas quenching furnace body, a fixed structure provided on the inner wall of the gas quenching furnace body, a gas quenching chamber provided on the fixed structure, a fixed frame for placing workpieces provided on the inner wall of the gas quenching chamber, a heating structure provided on the inner wall of the gas quenching chamber, a cooling structure connected to the inner wall of the gas quenching furnace body provided at one end of the gas quenching chamber body, a convection mechanism connected to the gas quenching furnace body provided on the side of the cooling structure away from the gas quenching chamber body, and a guide mechanism corresponding to the side wall of the gas quenching chamber body provided on the side of the gas quenching chamber body. The workpiece is quenched by heating through the heating structure, and the heat flow in the gas quenching chamber is transported to the cooling structure for cooling through the guide mechanism and the convection mechanism, thereby accelerating the airflow rate, ensuring sufficient contact between the workpiece and the airflow, and improving the heat treatment efficiency of the workpiece.

Description

Technical Field

[0001] The present application relates to the field of heat treatment technology, and in particular to a vacuum high-pressure gas quenching furnace with diverse flow channels and a processing method thereof. Background Art

[0002] Vacuum high-pressure gas quenching furnaces are mainly used for heat treatment processes such as vacuum quenching, annealing, aging and tempering of tool steel, die steel, other high-alloy special steels and non-ferrous metals.

[0003] At present, when a vacuum high-pressure gas quenching furnace is used to quench a workpiece, the air flow velocity in the gas quenching furnace is slow, which makes the air flow distribution around the workpiece uneven and makes the heat treatment time of the workpiece too long.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the air flow velocity in the gas quenching furnace is relatively slow, which causes the heat treatment time of the workpiece to be too long. Summary of the Invention

[0005] The purpose of the present application is to provide a vacuum high-pressure gas quenching furnace with diverse flow channels and a processing method thereof, so as to improve the problem that the air flow velocity in the quenching furnace is slow, resulting in an excessively long heat treatment time for the workpiece.

[0006] The present application provides a vacuum high-pressure gas quenching furnace with diverse flow channels, which adopts the following technical solutions:

[0007] A vacuum high-pressure gas quenching furnace with diverse flow channels comprises a gas quenching furnace body, a support frame is provided at the bottom of the gas quenching furnace body, a fixed structure is provided on the inner wall of the gas quenching furnace body, a gas quenching chamber is provided on the fixed structure, a fixed frame for placing workpieces is provided on the inner wall of the gas quenching chamber, a heating structure is provided on the inner wall of the gas quenching chamber, a cooling structure connected to the inner wall of the gas quenching furnace body is provided at one end of the gas quenching chamber, a convection mechanism connected to the gas quenching furnace body is provided on the side of the cooling structure away from the gas quenching chamber, and a guide mechanism corresponding to the side wall of the gas quenching chamber is provided on the side of the gas quenching chamber.

[0008] By adopting the above technical solution, a gas quenching chamber is provided in the gas quenching furnace body, the workpiece is placed on a fixed frame, the gas quenching chamber is heated by a heating structure provided in the gas quenching chamber, and the workpiece is quenched, and then the heat flow in the gas quenching chamber is transported to the cooling structure through a guide mechanism provided on the gas quenching chamber, the heated gas is cooled by the cooling structure, and then the flow speed of the cold flow and the hot flow is accelerated by the guide mechanism and the convection mechanism, so that the workpiece is in contact with the air flow more evenly, thereby accelerating the heat treatment efficiency of the workpiece.

[0009] Optionally, the heating structure includes a heating component, which is arranged on the inner wall of the gas quenching chamber, a connecting groove 1 is provided on the gas quenching chamber, and a connecting groove 2 communicating with the connecting groove 1 is provided on the gas quenching furnace body. A connecting pipe 1 for transporting inert gas to the heating chamber is provided in the connecting groove 1 and the connecting groove 2, and a protective part in contact with the outer wall of the gas quenching furnace body is provided on the connecting pipe 1. A guide groove is provided on the side wall of the gas quenching chamber, and the guide groove is connected to the guide mechanism.

[0010] By adopting the above technical solution, the connecting groove 2 opened on the gas quenching furnace body and the connecting groove 2 opened on the gas quenching chamber are communicated, so that the gas quenching furnace body transports inert gas to the gas quenching chamber through the connecting pipe 1 set in the connecting groove 1 and the connecting groove 2, and the inert gas is heated by the heating component set on the inner wall of the gas quenching chamber to quench the workpiece. The protective part set on the connecting pipe 1 partitions the inert gas in the gas quenching chamber to prevent the high-temperature gas from flowing out of the gas quenching chamber. Through the guide groove opened on the side wall of the gas quenching chamber, the heat flow passes through the guide groove and flows from the guide mechanism to the cooling structure faster.

[0011] Optionally, the guide mechanism includes a plurality of guide plates, which are rotatably connected to the side walls of the gas quenching chamber, and the guide plates are abutted against the guide grooves. A driving member connected to the outer wall of the gas quenching furnace body is provided on the side of the guide plate away from the gas quenching chamber, and a driving rod of the driving member is rotatably connected to the guide plate. The fixed structure includes a fixed plate, which is provided between the gas quenching furnace body and the gas quenching chamber body, and a mounting groove is provided on the fixed plate to fit the outer wall of the gas quenching chamber body. A plurality of baffles corresponding to the guide plates are provided between the gas quenching chamber body and the gas quenching furnace body, and the baffles are abutted against the side of the fixed plate close to the gas quenching chamber body.

[0012] By adopting the above technical solution, a guide plate is rotatably set on the gas quenching chamber, and a driving member is used to drive the opening and closing of the guide plate to realize the opening and closing of the guide groove on the gas quenching chamber. A plurality of baffles and fixed plates are set between the gas quenching chamber and the gas quenching furnace body to separate the outer wall of the gas quenching chamber, support the gas quenching chamber, and prevent the air flow cooled by the cooling structure from mixing with the heat flow in the gas quenching chamber, thereby affecting the cooling of the workpiece. When cooling the workpiece, the driving member drives the guide plate to open, so that the convection mechanism flows the heat flow in the gas quenching chamber along the channel between the two adjacent baffles to the cooling structure for cooling, and the cooled air flow flows back to the gas quenching chamber through the channel on the other side of the gas quenching chamber to cool the workpiece, so that the workpiece is evenly contacted with the cold flow, thereby improving the cooling efficiency of the workpiece.

[0013] Optionally, the inner wall of the gas quenching furnace body is provided with a baffle 2 in contact with the cooling structure, the side of the baffle 2 close to the gas quenching chamber body is against the baffle 1, the baffle 2 is located between adjacent baffles 1 and a connecting groove is provided, the connecting groove is provided with a guide pipe connected to the cooling structure, the cooling structure includes a cooling frame, the cooling frame is connected to the guide pipe, the cooling frame is provided with a cooling component corresponding to the guide pipe, and the side of the cooling frame away from the baffle 2 corresponds to the convection mechanism.

[0014] By adopting the above technical solution, the baffle 2 and baffle 1 provided in the gas quenching chamber are offset against each other to block the heat flow to the cooling structure. The connecting groove and the guide pipe provided on the baffle 2 allow the heat flow to flow directly to the cooling component in the cooling frame, thereby preventing the cold flow from flowing directly to the convection structure at one end of the cooling frame and causing damage to the convection structure. The airflow is guided by the guide pipe connected to the cooling frame, so that the airflow can enter the gas quenching chamber more quickly through the channel formed by the baffle 1 provided on the gas quenching chamber, thereby cooling the workpiece in the gas quenching chamber more quickly.

[0015] Optionally, a rear end cover is provided at one end of the gas quenching furnace body close to the cooling frame, and the convection mechanism includes a centrifugal fan, which is arranged on the rear end cover corresponding to the cooling frame, and a connecting groove three is provided on the side wall of the gas quenching furnace body away from the gas quenching chamber, and a connecting pipe three is provided in the connecting groove three, and the connecting pipe three passes through the gas quenching furnace body and is connected to fan one, and a collector is provided on the side of fan one.

[0016] By adopting the above technical solution, a rear end cover is provided at one end of the gas quenching furnace body, and the hot flow gas in the gas quenching chamber is transported into the cooling frame through the guide groove and the guide pipe for cooling by the centrifugal fan provided on the rear end cover, and the cold flow gas is then transported back to the gas quenching chamber to cool the workpiece. A connecting groove three is provided on the gas quenching furnace body, and a fan one is provided on the connecting pipe three. After the cooling of the workpiece is completed, the remaining gas in the gas quenching furnace body is transported into the collector by the fan one for collection, so as to prevent the residual gas from polluting the outside air as the gas quenching furnace body is opened.

[0017] Optionally, a front end cover is rotatably provided at one end of the gas quenching furnace body away from the cooling frame, and a mounting block is provided on the side of the front end cover close to the gas quenching furnace body, which is against the side wall of the gas quenching chamber body, and an isolation piece 1 is provided on the mounting block, which fits the inner wall of the gas quenching chamber body, and a plurality of fans 2 are provided on the front end cover, and positioning grooves corresponding to the two directions of the fans are provided on the fixing plate, and the positioning grooves correspond to the connecting grooves on the baffle 2.

[0018] By adopting the above technical solution, a second fan is provided on the front end cover of the gas quenching furnace body away from the cooling frame. The second fan accelerates the flow rate of the airflow in the guide channel composed of the first baffle, the second baffle and the fixed plate between the gas quenching chamber and the gas quenching furnace body. At the same time, when the centrifugal fan transports the cold flow back to the gas quenching chamber, the second fan corresponding to the guide pipe on the connecting groove for outputting the cold flow is reversed to accelerate the flow rate of the cold flow, thereby increasing the speed of the cold flow flowing to the workpiece, and further accelerating the cooling speed of the workpiece.

[0019] Optionally, a block that abuts against the outer wall of the gas quenching chamber is provided on the guide plate, and a mounting frame corresponding to the fixed plate is provided between the gas quenching chamber and the gas quenching furnace body, and the block abuts against the mounting frame when the guide plate rotates a certain angle under the drive of the driving member 1.

[0020] By adopting the above technical solution, a stopper is provided on the guide plate to abut against the outer wall of the gas quenching chamber to limit the rotation degree of the guide plate, thereby preventing the guide plate from rotating too much, so that the guide groove on the gas quenching chamber cannot be completely closed, and the temperature of the air flow in the gas quenching furnace body cannot reach the predetermined temperature. The gas quenching chamber is further supported by the gas quenching chamber and the mounting frame provided for the gas quenching chamber, and at the same time, the guide plate is restricted to prevent the guide plate from abutting against the gas quenching furnace body under the drive of the driving member 1, causing the guide plate to be deformed and affecting the sealing of the gas quenching chamber.

[0021] Optionally, an elastic member connected to the mounting frame is provided on the stop block, and a sealing member is provided on the side of the guide plate close to the gas quenching chamber body. When the stop block abuts against the gas quenching chamber body after the guide plate rotates, the sealing member fits into the guide groove.

[0022] By adopting the above technical solution, an elastic member connected to the mounting frame is provided on the stop block. When the guide plate turns toward the mounting frame, the elastic member on the stop block contracts, so that the stop block and the mounting frame maintain a certain distance, thereby preventing the guide plate from being slightly deformed after the stop block on the guide plate and the mounting frame collide with each other. A sealing member is provided on the side of the guide plate close to the gas quenching chamber to seal the guide groove at the upper end of the gas quenching chamber, thereby reducing the possibility of air leakage in the gas quenching chamber after the guide plate is deformed.

[0023] Optionally, a method for processing a workpiece in a vacuum high-pressure gas quenching furnace with diverse flow channels comprises the following steps:

[0024] Place the workpiece to be processed on the fixed frame of the gas quenching chamber in the gas quenching furnace, close the front cover, and make the mounting block on the front cover abut against the gas quenching chamber to keep the gas quenching furnace sealed;

[0025] The gas quenching furnace delivers inert gas to the gas quenching chamber through the connecting pipe. The guide plate at the upper end of the gas quenching chamber is closed, and then the heating component in the gas quenching chamber starts to heat the inert gas in the gas quenching chamber to quench the workpiece.

[0026] After the workpiece is quenched, the guide plate is opened, and the centrifugal fan installed in the gas quenching furnace body transports the hot flow into the cooling frame through the guide pipe. The cold flow cooled by the cooling components in the cooling frame is input into the gas quenching chamber through the guide pipe, so that the cold flow contacts the workpiece evenly and the workpiece is fully cooled.

[0027] After the workpiece is cooled, the blower 1 conveys the remaining gas to the collector through the connecting pipe 3, and then the front cover is opened to take out the workpiece.

[0028] Optionally, a gas quenching process of a vacuum high-pressure gas quenching furnace with diverse flow channels includes:

[0029] After the gas quenching furnace body delivers inert gas into the gas quenching chamber through the connecting pipe, a driving member provided on the outer wall of the gas quenching furnace body drives the guide plate to rotate and fit into the gas quenching chamber, so that the stopper on the guide plate abuts against the outer wall of the gas quenching chamber, and the sealing member provided on the guide plate fits into the guide groove on the gas quenching chamber to seal the gas quenching chamber;

[0030] After the workpiece is quenched, the driving member drives the guide plate to rotate away from the gas quenching chamber, so that the guide groove on the gas quenching chamber is opened. Then the centrifugal fan passes through the guide plate and the baffle plate between the gas quenching chamber and the gas quenching furnace body, and transports the heat flow in the gas quenching chamber through the guide pipe to the cooling frame, and is cooled by the cooling assembly.

[0031] The second fan installed on the front cover of the gas quenching furnace body is started to speed up the delivery of heat flow in the gas quenching chamber. The cold flow cooled by the cooling assembly is transported into the gas quenching chamber through the guide groove on the other side of the gas quenching chamber by the centrifugal fan. The second fan corresponding to the guide groove on the other side is reversed to speed up the flow of the cold flow, so that the workpiece is evenly contacted with the cold flow for cooling.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. A guide plate is rotatably arranged on the gas quenching chamber, and a driving member is used to drive the opening and closing of the guide plate to realize the opening and closing of the guide groove on the gas quenching chamber. A plurality of baffles and fixed plates are arranged between the gas quenching chamber and the gas quenching furnace body to separate the outer wall of the gas quenching chamber, support the gas quenching chamber, and prevent the air flow cooled by the cooling structure from mixing with the heat flow in the gas quenching chamber, thereby affecting the cooling of the workpiece. When cooling the workpiece, the driving member drives the guide plate to open, so that the convection mechanism flows the heat flow in the gas quenching chamber along the channel between the two adjacent baffles to the cooling structure for cooling, and the cooled air flow flows back to the gas quenching chamber through the channel on the other side of the gas quenching chamber to cool the workpiece, so that the workpiece is evenly contacted with the cold flow, thereby improving the cooling efficiency of the workpiece.

[0034] 2. A rear end cover is provided at one end of the gas quenching furnace body. A centrifugal fan provided on the rear end cover transports the hot gas in the gas quenching chamber through the guide groove and the guide pipe into the cooling frame for cooling, and then transports the cold gas back to the gas quenching chamber to cool the workpiece. A connecting groove three is provided on the gas quenching furnace body. A fan one is provided on the connecting pipe three. After the workpiece is cooled, the remaining gas in the gas quenching furnace body is transported by the fan one into the collector for collection to prevent the residual gas from polluting the outside air when the gas quenching furnace body is opened.

[0035] 3. A second fan is provided on the front end cover of the gas quenching furnace body away from the cooling frame. The second fan accelerates the flow rate of the airflow in the guide channel composed of baffles 1, 2 and a fixed plate between the gas quenching chamber and the gas quenching furnace body. At the same time, when the centrifugal fan transports the cold flow back to the gas quenching chamber, the second fan corresponding to the guide pipe on the connecting groove for outputting the cold flow is reversed to accelerate the flow rate of the cold flow, thereby increasing the speed of the cold flow flowing to the workpiece and further accelerating the cooling speed of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an overall schematic diagram of a vacuum high-pressure gas quenching furnace with diverse flow channels.

[0037] Figure 2 It is a partial cross-sectional view of the interior of a vacuum high-pressure gas quenching furnace.

[0038] Figure 3 It is a front cross-sectional view of the interior of a vacuum high-pressure gas quenching furnace.

[0039] In the figure, 1. Gas quenching furnace body; 12. Support frame; 13. Connection groove 2; 14. Protective member; 15. Rear end cover; 16. Connection groove 3; 161. Connection pipe 3; 17. Fan 1; 18. Front end cover; 181. Mounting block; 182. Isolation member 1; 2. Fixing structure; 21. Fixing plate; 211. Mounting groove; 212. Positioning groove; 22. Baffle 1; 23. Baffle 2; 231. Connecting groove; 24. Mounting frame; 3. Gas quenching chamber Body; 31. Fixing frame; 32. Connecting groove 1; 321. Connecting pipe 1; 35. Guide groove; 4. Heating structure; 41. Heating assembly; 5. Cooling structure; 51. Cooling frame; 52. Cooling assembly; 6. Convection mechanism; 61. Centrifugal fan; 62. Fan 2; 7. Guide mechanism; 71. Guide plate; 711. Stop block; 712. Elastic member; 713. Sealing member; 72. Driving member 1; 73. Guide pipe; 8. Collector. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given. Example

[0041] A vacuum high-pressure gas quenching furnace with diverse flow channels and its processing method, referring to Figures 1 to 3 , comprising a gas quenching furnace body 1, a support frame 12 is fixed to the lower outer wall of the gas quenching furnace body 1 with bolts to support the gas quenching furnace body 1, a mounting frame 24 is welded to the inner wall of the gas quenching furnace body 1, a gas quenching chamber 3 is fixed to the mounting frame 24 with bolts, a heat-resistant metal baffle 22 and a fixing plate 21 are welded between the gas quenching chamber 3 and the gas quenching furnace body 1, a mounting groove 211 is opened on the fixing plate 21 to fit with the gas quenching chamber 3, four guide grooves 35 are evenly opened on the side wall of the gas quenching chamber 3, and the baffles 22 are evenly distributed on both sides of the guide groove 35 and abut against the fixing plate 21 and the gas quenching furnace body 1 An air flow channel is formed on the inner wall of the gas quenching chamber 3, a connecting groove 13 communicating with the connecting groove 1 32 is provided on the gas quenching furnace body 1, a heat-resistant metal connecting pipe 1 321 is sealedly connected to the connecting grooves on the gas quenching chamber 3 and the gas quenching furnace body 1, the connecting pipe 1 321 is connected to the inert gas conveyor, and inert gas is vertically injected into the gas quenching chamber 3 through the connecting pipe 1 321, and a protective member 14 is installed on the connecting pipe 1 321. The protective member 14 is an airflow blocking valve, which blocks the gas heated in the gas quenching chamber 3 to prevent the heat flow from flowing out of the gas quenching chamber 3.

[0042] Reference Figures 1 to 3 A heating assembly 41 is bolted to the inner wall of the gas quenching chamber 3. The heating assembly 41 is electrically connected to the power supply and control system. It heats the inert gas that is injected into the gas quenching chamber 3 through the connecting pipe 1 321 to quench the workpiece. A fixing frame 31 for placing the workpiece is bolted to the bottom of the gas quenching chamber 3. A metal guide plate 71 is rotatably connected to the side wall of the gas quenching chamber 3 via a rotating shaft. A driving member 72 is bolted to the outer wall of the gas quenching furnace body 1. The driving member 72 is a cylinder electrically connected to the power supply and control system. The driving rod of the cylinder passes through the gas quenching furnace body 1 and is in sealed contact with the gas quenching furnace body 1. The driving rod of the cylinder is rotatably connected to the guide plate 71. An integrally formed stopper 711 is provided on the guide plate 71. An elastic member 712 connected to the mounting bracket 24 is fixed on the stopper 711. The elastic member 712 is a high-temperature resistant metal spring. The cylinder drives the guide plate 71 to rotate on the outer wall of the gas quenching chamber 3, so that the guide plate 71 fits with the guide groove 35. The sealing member 713 fixed on the guide plate 71 completes the sealing of the guide groove 35. The sealing member 713 is a high-temperature resistant sealing gasket. The stopper 711 on the guide plate 71 abuts against the outer wall of the gas quenching chamber 3 to limit the rotation of the guide plate 71.

[0043] Reference Figures 1 to 3The cooling frame 51 is fixed to the inner wall of the gas quenching furnace body 1 with bolts, and the cooling assembly 52 is fixed to the cooling frame 51 with bolts. The cooling assembly 52 is electrically connected to the power supply and the control system. A metal baffle 23 in contact with the cooling frame 51 is sealed in the gas quenching furnace body 1. One side of the baffle 23 abuts against the baffle 1 22 for sealing. A connecting groove 231 is opened on the baffle 23 between the adjacent baffles 1 22 on both sides of the guide groove 35. A guide pipe 73 connected to the cooling frame 51 is sealed on 231, and a connecting groove 3 16 is opened on the side wall of the gas quenching furnace body 1. A connecting pipe 3 161 is sealed in the connecting groove 3 16. The connecting pipe 3 161 passes through the gas quenching furnace body 1 and is connected to the fan 2 62. The fan 2 62 is connected to the power supply and control system pad. After the workpiece is cooled, the remaining gas in the gas quenching furnace body 1 is transported by the fan 2 62 along the connecting pipe 3 161 to the collector 8 connected to the fan 2 62.

[0044] Reference Figures 1 to 3 The rear end cover 15 is fixed with bolts on the end of the gas quenching furnace body 1 close to the cooling frame 51, or the centrifugal fan 61 is fixed with bolts on the end cover. After the guide plate 71 is opened, the centrifugal fan 61 transports the heat flow in the gas quenching chamber 3 along the air flow channel into the cooling frame 51 to be cooled by the cooling assembly 52. ​​The end of the gas quenching chamber 3 away from the cooling frame 51 is rotatably connected to the front cover through a rotating shaft. The front cover is fixed with bolts to a mounting block 181 that fits with the gas quenching chamber 3. An isolation member that fits with the sealed chamber is provided on the mounting block 181. 182, the isolation member 182 is a high-temperature resistant isolation gasket, and a fan 17 is fixed to the front cover 18 with bolts. The fan 17 is connected to the power supply. The fan 17 corresponds to the air flow channel formed by the baffle 12 between the gas quenching chamber 3 and the gas quenching furnace body 1. The fan 17 is in contact with the positioning groove 212 provided on the fixed plate 21. The positioning groove 212 provided on the fixed plate 21 corresponds to the connecting groove 231 on the baffle 23. The fan 2 62 is used to accelerate the alternation of cold flow and hot flow gas in the gas quenching chamber 3, thereby improving the cooling rate of the workpiece. Example

[0045] S100, placing the workpiece to be processed on the fixing frame 31 of the gas quenching chamber 3 in the gas quenching furnace body 1, closing the front cover 18, so that the mounting block 181 provided on the front cover 18 abuts against the gas quenching chamber 3, so that the gas quenching furnace body 1 remains sealed;

[0046] At step S200, the gas quenching furnace 1 delivers inert gas to the gas quenching chamber 3 through the connecting pipe 1 321. The guide plate 71 at the upper end of the gas quenching chamber 3 is closed. Then, the heating assembly 41 in the gas quenching chamber 3 begins to heat the inert gas in the gas quenching chamber 3 to quench the workpiece.

[0047] S210, after the gas quenching furnace body 1 delivers inert gas into the gas quenching chamber 3 through the connecting pipe 321, the driving member 72 provided on the outer wall of the gas quenching furnace body 1 drives the guide plate 71 to rotate and fit into the gas quenching chamber 3, so that the stopper 711 on the guide plate 71 abuts against the outer wall of the gas quenching chamber 3, and the sealing member 713 provided on the guide plate 71 fits into the guide groove 35 on the gas quenching chamber 3, thereby sealing the gas quenching chamber 3;

[0048] S300: After the workpiece is quenched, the guide plate 71 is opened, and the centrifugal fan 61 installed in the gas quenching furnace body 1 conveys the hot fluid into the cooling frame 51 through the guide pipe 73. The cold fluid cooled by the cooling assembly 52 in the cooling frame 51 is then fed into the gas quenching chamber 3 through the guide pipe 73, so that the cold fluid contacts the workpiece evenly and fully cools the workpiece.

[0049] S310, after the workpiece is quenched, the driving member 72 drives the guide plate 71 to rotate away from the gas quenching chamber 3, opening the guide slot 35 on the gas quenching chamber 3. Then, the centrifugal fan 61 passes through the guide plate 71 and the baffle 22 between the gas quenching chamber 3 and the gas quenching furnace body 1, and transports the heat flow in the gas quenching chamber 3 through the guide pipe 73 to the cooling frame 51, where it is cooled by the cooling assembly 52.

[0050] At step S320, the second fan 62 provided on the front cover 18 of the gas quenching furnace body 1 is started to accelerate the transport speed of the heat flow in the gas quenching chamber 3. The cold flow cooled by the cooling assembly 52 is transported into the gas quenching chamber 3 through the guide groove 35 on the other side of the gas quenching chamber 3 by the centrifugal fan 61. The second fan 62 corresponding to the guide groove 35 on the other side is reversed to accelerate the flow speed of the cold flow, so that the workpiece is evenly contacted with the cold flow for cooling.

[0051] S400, after the workpiece is cooled, the blower 17 transports the remaining gas to the collector 8 through the connecting pipe 3 161, and then the front cover 18 is opened to take out the workpiece.

[0052] The implementation principle of the embodiment of this application is:

[0053] Open the front cover 18 of the gas quenching furnace body 1, place the workpiece to be processed on the fixed frame 31 in the gas quenching chamber 3 in the gas quenching furnace body 1, then close the front cover 18, and the driving member 72 drives the guide plate 71 to rotate and close with the guide groove 35 on the side wall of the gas quenching chamber 3 to seal the gas quenching chamber 3. Then, the gas quenching furnace body 1 flushes inert gas into the gas quenching chamber 3 through the connecting pipe 321 to fully contact the workpiece, and the inert gas is heated by the heating component 41 set in the gas quenching chamber 3 to quench the workpiece. After the quenching of the workpiece is completed, the driving member 72 drives the guide plate 71 to rotate, opens the guide groove 35 on the gas quenching chamber 3, and then the fan 2 62 set on the front cover 18 and the centrifugal fan 61 set on the rear cover 15 transport the heat flow in the gas quenching chamber 3 through the air flow channel formed by the guide groove 35 and the adjacent baffle 1 22 into the cooling frame 51 for cooling by the cooling component 52, and then the centrifugal fan 61 transports the cold flow from the air flow channel on the other side of the gas quenching chamber 3 back to the gas quenching chamber 3, and the fan 2 62 corresponding to the air flow channel on the other side is reversed to accelerate the flow rate of the cold flow, so that the cold flow flows into the gas quenching chamber 3 faster, contacts the workpiece evenly with the cold flow, and cools the workpiece, and then the fan 17 transports the remaining gas in the gas quenching furnace body 1 into the collector 8, opens the front cover 18 and takes out the workpiece in the gas quenching chamber 3. The centrifugal fan 61 and the second fan 62 accelerate the flow rate of the airflow in the gas quenching furnace body 1, so that the workpiece can fully contact the airflow through the guide groove 35 provided on the gas quenching chamber 3, thereby accelerating the heat treatment efficiency of the workpiece.

[0054] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A vacuum high-pressure gas quenching furnace with diversified flow channels, comprising a gas quenching furnace body (1), wherein a support frame (12) is provided at the bottom of the gas quenching furnace body (1), characterized in that: The inner wall of the gas quenching furnace body (1) is provided with a fixed structure (2), a gas quenching chamber body (3) is provided on the fixed structure (2), the inner wall of the gas quenching chamber body (3) is provided with a fixed frame (31) for placing workpieces, the inner wall of the gas quenching chamber body (3) is provided with a heating structure (4), one end of the gas quenching chamber body (3) is provided with a cooling structure (5) connected to the inner wall of the gas quenching furnace body (1), a side of the cooling structure (5) away from the gas quenching chamber body (3) is provided with a convection mechanism (6) connected to the gas quenching furnace body (1), and the side of the gas quenching chamber body (3) is provided with a guide mechanism (7) corresponding to the side wall of the gas quenching chamber body (3); The heating structure (4) includes a heating component (41), the heating component (41) is arranged on the inner side wall of the gas quenching chamber (3), the gas quenching chamber (3) is provided with a connecting groove (32), the gas quenching furnace body (1) is provided with a connecting groove (13) corresponding to the connecting groove (32), the connecting groove (32) and the connecting groove (13) are provided with a connecting pipe (321) for conveying inert gas to the heating chamber, the connecting pipe (321) is provided with a protective member (14) in contact with the outer side wall of the gas quenching furnace body (1), the side wall of the gas quenching chamber (3) is provided with a guide groove (35), and the guide groove (35) is connected to the guide mechanism (7); The guide mechanism (7) includes a plurality of guide plates (71), the guide plates (71) are rotatably connected to the side walls of the gas quenching chamber (3), the guide plates (71) are in contact with the guide grooves (35), and a driving member (72) connected to the outer wall of the gas quenching furnace (1) is provided on the side of the guide plate (71) away from the gas quenching chamber (3), and the driving rod of the driving member (72) is rotatably connected to the guide plate (71); A sealing member (713) is provided on a side of the guide plate (71) close to the gas quenching chamber (3).

2. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 1, characterized in that: The fixing structure (2) comprises a fixing plate (21), the fixing plate (21) being arranged between the gas quenching furnace body (1) and the gas quenching chamber body (3), the fixing plate (21) being provided with a mounting groove (211) which is in contact with the outer wall of the gas quenching chamber body (3), a plurality of baffles (22) corresponding to the guide plates (71) being arranged between the gas quenching chamber body (3) and the gas quenching furnace body (1), the baffles (22) being in contact with a side of the fixing plate (21) close to the gas quenching chamber body (3).

3. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 2, characterized in that: The inner wall of the gas quenching furnace body (1) is provided with a second baffle (23) in contact with the cooling structure (5); the side of the second baffle (23) close to the gas quenching chamber body (3) is against the first baffle (22); the second baffle (23) is located between adjacent first baffles (22) and is provided with a connecting groove (231); a guide pipe (73) connected to the cooling structure (5) is provided in the connecting groove (231); the cooling structure (5) includes a cooling frame (51); the cooling frame (51) is connected to the guide pipe (73); a cooling assembly (52) corresponding to the guide pipe (73) is provided in the cooling frame (51); and the side of the cooling frame (51) away from the second baffle (23) corresponds to the convection mechanism (6).

4. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 3, characterized in that: A rear end cover (15) is provided at one end of the gas quenching furnace body (1) close to the cooling frame (51); the convection mechanism (6) includes a centrifugal fan (61); the centrifugal fan (61) is provided on the rear end cover (15) and corresponds to the cooling frame (51); a connecting groove three (16) is provided on the side wall of the gas quenching furnace body (1) away from the gas quenching chamber (3); a connecting pipe three (161) is provided in the connecting groove three (16); the connecting pipe three (161) passes through the gas quenching furnace body (1) and is connected to a fan one (17); a collector (8) is provided on the side of the fan one (17).

5. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 4, characterized in that: A front end cover (18) is rotatably provided at one end of the gas quenching furnace body (1) away from the cooling frame body (51); a mounting block (181) abutting against the side wall of the gas quenching chamber body (3) is provided on the side of the front end cover (18) close to the gas quenching furnace body (1); an isolating member (182) abutting against the inner wall of the gas quenching chamber body (3) is provided on the mounting block (181); a plurality of fans (62) are provided on the front end cover (18); a positioning groove (212) corresponding to the fans (62) is provided on the fixing plate (21); the positioning groove (212) corresponds to the connecting groove (231) on the baffle (23).

6. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 5, characterized in that: The guide plate (71) is provided with a stopper (711) that abuts against the outer wall of the gas quenching chamber (3); a mounting frame (24) corresponding to the fixing plate (21) is provided between the gas quenching chamber (3) and the gas quenching furnace body (1); when the guide plate (71) rotates to a certain angle under the drive of the driving member (72), the stopper (711) abuts against the mounting frame (24).

7. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 6, characterized in that: The stopper (711) is provided with an elastic member (712) connected to the mounting frame (24); and when the guide plate (71) rotates and the stopper (711) abuts against the gas quenching chamber (3), the sealing member (713) fits into the guide groove (35).

8. A workpiece processing method for a vacuum high-pressure gas quenching furnace with diverse flow channels, characterized in that: Including a diversified vacuum high-pressure gas quenching furnace as described in claim 7, S100, placing the workpiece to be processed on the fixing frame (31) of the gas quenching chamber (3) in the gas quenching furnace body (1), closing the front end cover (18), and making the mounting block (181) provided on the front end cover (18) abut against the gas quenching chamber (3), so that the gas quenching furnace body (1) remains sealed; S200, the gas quenching furnace body (1) delivers inert gas to the gas quenching chamber body (3) through the connecting pipe 1 (321), the guide plate (71) at the upper end of the gas quenching chamber body (3) is closed, and then the heating component (41) in the gas quenching chamber body (3) starts to heat the inert gas in the gas quenching chamber body (3) to quench the workpiece; S300, after the workpiece is quenched, the guide plate (71) is opened, and the centrifugal fan (61) installed in the gas quenching furnace body (1) is used to transport the hot flow into the cooling frame (51) through the guide pipe (73), and the cold flow cooled by the cooling component (52) in the cooling frame (51) is input into the gas quenching chamber (3) through the guide pipe (73), so that the cold flow is in uniform contact with the workpiece, and the workpiece is fully cooled; S400, after the workpiece is cooled, the blower 1 (17) transports the remaining gas to the collector (8) through the connecting pipe 3 (161), and then the front cover (18) is opened to take out the workpiece.

9. The workpiece processing method of a vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 8, characterized in that: S210, after the gas quenching furnace body (1) conveys the inert gas into the gas quenching chamber body (3) through the connecting pipe (321), a driving member (72) provided on the outer wall of the gas quenching furnace body (1) drives the guide plate (71) to rotate and fit with the gas quenching chamber body (3), so that the stopper (711) on the guide plate (71) abuts against the outer wall of the gas quenching chamber body (3), and the sealing member (713) provided on the guide plate (71) fits with the guide groove (35) on the gas quenching chamber body (3), thereby sealing the gas quenching chamber body (3); S310, after the workpiece is quenched, the driving member 1 (72) drives the guide plate (71) to rotate away from the gas quenching chamber (3), so that the guide groove (35) on the gas quenching chamber (3) is opened, and then the centrifugal fan (61) passes through the guide plate (71) and the baffle 1 (22) between the gas quenching chamber (3) and the gas quenching furnace body (1), and transports the heat flow in the gas quenching chamber (3) through the guide pipe (73) to the cooling frame (51), and is cooled by the cooling component (52); S320, the second fan (62) provided on the front end cover (18) of the gas quenching furnace body (1) is started to accelerate the conveying speed of the heat flow in the gas quenching chamber (3), and the cold flow cooled by the cooling assembly (52) is conveyed into the gas quenching chamber (3) from the guide groove (35) on the other side of the gas quenching chamber (3) by the centrifugal fan (61), and the second fan (62) corresponding to the guide groove (35) on the other side is reversed to accelerate the flow speed of the cold flow, so that the workpiece is in uniform contact with the cold flow for cooling.

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