Vacuum high-pressure gas quenching furnace with diversified runners and machining method of vacuum high-pressure gas quenching furnace

Abstract

The invention discloses a vacuum high-pressure gas quenching furnace with diversified runners and a machining method of the vacuum high-pressure gas quenching furnace, and relates to the technical field of heat treatment.The vacuum high-pressure gas quenching furnace comprises a gas quenching furnace body, a supporting frame is arranged at the bottom of the gas quenching furnace body, a fixing structure is arranged on the inner side wall of the gas quenching furnace body, and a gas quenching cabin is arranged on the fixing structure; a fixing frame for placing workpieces is arranged on the inner side wall of the gas quenching cabin body, a heating structure is arranged on the inner side wall of the gas quenching cabin body, a cooling structure connected with the inner side wall of the gas quenching furnace body is arranged at one end of the gas quenching cabin body, and a convection mechanism connected with the gas quenching furnace body is arranged on the side, away from the gas quenching cabin body, of the cooling structure; and a flow guide mechanism corresponding to the side wall of the gas quenching cabin body is arranged on the side surface of the gas quenching cabin body. Workpieces are heated and quenched through the heating structure, heat flow in the gas quenching cabin is conveyed into the cooling structure through the flow guide mechanism and the convection mechanism to be cooled, the airflow speed is increased, the workpiece airflow makes full contact, and the heat treatment efficiency of the workpieces is improved.

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 furnace is mainly used for heat treatment process requirements such as vacuum quenching, annealing, aging and tempering of tool steel, die steel, other high alloy special steel and non-ferrous metals.

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

[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 makes the heat treatment time of the workpiece 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 diversified flow channels, which adopts the following technical solution: A vacuum high-pressure gas quenching furnace with diverse flow channels comprises a gas quenching furnace body, a support frame is arranged at the bottom of the gas quenching furnace body, a fixed structure is arranged on the inner wall of the gas quenching furnace body, a gas quenching chamber is arranged on the fixed structure, a fixed frame for placing workpieces is arranged on the inner wall of the gas quenching chamber, a heating structure is arranged on the inner wall of the gas quenching chamber, a cooling structure connected to the inner wall of the gas quenching furnace body is arranged at one end of the gas quenching chamber, a convection mechanism connected to the gas quenching furnace body is arranged 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 arranged on the side of the gas quenching chamber.

[0007] By adopting the above technical scheme, a gas quenching chamber is arranged in the gas quenching furnace body, the workpiece is placed on a fixed frame, the gas quenching chamber is heated by a heating structure arranged in the gas quenching chamber, the workpiece is quenched, and then the heat flow in the gas quenching chamber is transported to the cooling structure by a guide mechanism arranged 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 airflow more evenly, thereby accelerating the heat treatment efficiency of the workpiece.

[0008] Optionally, the heating structure includes a heating component, which is arranged on the inner wall of the gas quenching chamber, the gas quenching chamber is provided with a connecting groove 1, the gas quenching furnace body is provided with a connecting groove 2 which is communicated with the connecting groove 1, the connecting groove 1 and the connecting groove 2 are provided with a connecting pipe 1 for conveying inert gas to the heating chamber, the connecting pipe 1 is provided with a protective part which contacts the outer wall of the gas quenching furnace body, the side wall of the gas quenching chamber is provided with a guide groove, and the guide groove is connected to the guide mechanism.

[0009] By adopting the above technical scheme, 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 arranged on the connecting groove 1 and the connecting groove 2, and the inert gas is heated by the heating component arranged on the inner wall of the gas quenching chamber to quench the workpiece. The protective part arranged on the connecting pipe 1 separates the inert gas in the gas quenching chamber to prevent the high-temperature gas from flowing out of the gas quenching chamber, and the heat flow passes through the guide groove and flows from the guide mechanism to the cooling structure faster through the guide groove through the side wall of the gas quenching chamber.

[0010] 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 arranged between the gas quenching furnace body and the gas quenching chamber, and a mounting groove is provided on the fixed plate to fit the outer wall of the gas quenching chamber. A plurality of baffles corresponding to the guide plates are arranged between the gas quenching chamber and the gas quenching furnace body, and the baffles are abutted against a side of the fixed plate close to the gas quenching chamber.

[0011] By adopting the above technical scheme, 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 airflow cooled by the cooling structure from mixing with the heat flow in the gas quenching chamber to affect 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 two adjacent baffles to the cooling structure for cooling, and the cooled airflow 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.

[0012] Optionally, a baffle plate 2 in contact with the cooling structure is provided on the inner wall of the gas quenching furnace body, a side of the baffle plate 2 close to the gas quenching chamber body is abutted against the baffle plate 1, a connecting groove is provided between adjacent baffle plates 1, a guide pipe connected to the cooling structure is provided in the connecting groove, the cooling structure includes a cooling frame, the cooling frame is connected to the guide pipe, a cooling component corresponding to the guide pipe is provided in the cooling frame, and a side of the cooling frame away from the baffle plate 2 corresponds to the convection mechanism.

[0013] By adopting the above technical solution, the baffle plate 2 and the baffle plate 1 arranged in the gas quenching chamber are abutted against each other to block the heat flow to the cooling structure, and the connecting groove and the guide pipe arranged on the baffle plate 2 allow the heat flow to flow directly to the cooling component in the cooling frame, thereby preventing the cold flow from directly flowing 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 plate 1 arranged on the gas quenching chamber, thereby cooling the workpiece in the gas quenching chamber more quickly.

[0014] 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, 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 a fan one, and a collector is provided on the side of the fan one.

[0015] By adopting the above technical scheme, a rear end cover is arranged 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 arranged on the rear end cover, and then the cold flow gas is transported back to the gas quenching chamber to cool the workpiece, and a connecting groove three is arranged on the gas quenching furnace body, and a fan one is arranged 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.

[0016] Optionally, a front end cover is rotatably provided at one end of the gas quenching furnace body away from the cooling frame, a mounting block abutting against the side wall of the gas quenching chamber body is provided on the side of the front end cover close to the gas quenching furnace body, an isolating piece 1 that fits with the inner wall of the gas quenching chamber body is provided on the mounting block, a plurality of fans 2 are provided on the front end cover, positioning grooves corresponding to the two fans are provided on the fixing plate, and the positioning grooves correspond to the connecting grooves on the baffle 2.

[0017] By adopting the above technical scheme, a second fan is arranged on the front end cover of the gas quenching furnace body away from the cooling frame, and the second fan is used to accelerate the flow rate of the airflow in the guide channel composed of baffle one, baffle two 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.

[0018] Optionally, a block abutting 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.

[0019] By adopting the above technical solution, a stopper abutting against the outer wall of the gas quenching chamber is provided on the guide plate 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 a 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.

[0020] Optionally, an elastic member connected to the mounting frame is provided on the stopper, and a sealing member is provided on the side of the guide plate close to the gas quenching chamber body, and the sealing member fits with the guide groove when the stopper abuts against the gas quenching chamber body after the guide plate rotates.

[0021] By adopting the above technical solution, an elastic member connected to the mounting frame is arranged on the stop block. When the guide plate turns to the mounting frame, the elastic member on the stop block contracts to keep a certain distance between the stop block and the mounting frame, thereby preventing the guide plate from being slightly deformed after the stop block on the guide plate abuts against the mounting frame. A sealing member is arranged on the side of the guide plate close to the gas quenching cabin to seal the guide groove at the upper end of the gas quenching cabin, thereby reducing the possibility of air leakage in the gas quenching cabin after the guide plate is deformed.

[0022] Optionally, a method for processing a workpiece in a vacuum high-pressure gas quenching furnace with a variety of flow channels comprises the following steps: Place the workpiece to be processed on the fixed frame of the gas quenching chamber in the gas quenching furnace body, close the front cover, make the mounting block provided on the front cover abut against the gas quenching chamber body, so that the gas quenching furnace body remains sealed; The gas quenching furnace body transports inert gas to the gas quenching chamber through the connecting pipe 1, 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; After the workpiece is quenched, the guide plate is opened, and the centrifugal fan installed in the gas quenching furnace body is used to transport the heat flow into the cooling frame through the guide pipe. The cold flow cooled by the cooling assembly in the cooling frame is input into the gas quenching cabin through the guide pipe, so that the cold flow is in uniform contact with the workpiece and the workpiece is fully cooled. After the workpiece is cooled, the fan 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.

[0023] Optionally, a gas quenching process of a vacuum high-pressure gas quenching furnace with a variety of flow channels includes: After the gas quenching furnace body delivers inert gas into the gas quenching chamber through the connecting pipe, a driving member arranged on the outer wall of the gas quenching furnace body drives the guide plate to rotate and fit with the gas quenching chamber body, so that the stopper on the guide plate abuts against the outer wall of the gas quenching chamber body, and the sealing member arranged on the guide plate fits with the guide groove on the gas quenching chamber body to seal the gas quenching chamber body; After the workpiece is quenched, the driving member 1 drives the guide plate to rotate away from the gas quenching chamber, so that the guide groove on the gas quenching chamber is opened, and then the centrifugal fan passes through the guide plate and the baffle 1 between the gas quenching chamber and the gas quenching furnace body, and transports the heat flow in the gas quenching chamber to the cooling frame through the guide pipe, and is cooled by the cooling assembly; The second fan arranged on the front cover of the gas quenching furnace body is started to speed up the conveying speed of the heat flow in the gas quenching chamber. The cold flow cooled by the cooling assembly is conveyed into the gas quenching chamber from 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 speed of the cold flow, so that the workpiece is evenly contacted with the cold flow for cooling.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 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 a fixed plate 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 airflow after cooling by the cooling structure from mixing with the heat flow in the gas quenching chamber to affect 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 two adjacent baffles to the cooling structure for cooling, and the cooled airflow 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; 2. A rear end cover is arranged at one end of the gas quenching furnace body. The hot 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 arranged on the rear end cover, and the cold gas is transported back to the gas quenching chamber to cool the workpiece. A connection groove three is arranged on the gas quenching furnace body. Through the fan one arranged on the connecting pipe three, after the workpiece is cooled, 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; 3. A second fan is arranged 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

[0025] Figure 1 It is an overall schematic diagram of a vacuum high-pressure gas quenching furnace with diverse flow channels.

[0026] Figure 2 It is a partial cross-sectional view of the interior of a vacuum high-pressure gas quenching furnace.

[0027] Figure 3 It is a front cross-sectional view of the interior of a vacuum high-pressure gas quenching furnace.

[0028] In the figure, 1, gas quenching furnace body; 12, support frame; 13, connecting groove 2; 14, protective member; 15, rear end cover; 16, connecting groove 3; 161, connecting pipe 3; 17, fan 1; 18, front end cover; 181, mounting block; 182, isolating 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 component; 5, cooling structure; 51, cooling frame; 52, cooling component; 6, convection mechanism; 61, centrifugal fan; 62, fan 2; 7, guide mechanism; 71, guide plate; 711, block; 712, elastic member; 713, sealing member; 72, driving member 1; 73, guide pipe; 8, collector. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Figure 3 , further details of this application are given. Example

[0030] A vacuum high pressure gas quenching furnace with diversified flow channels and a processing method thereof, referring to Figures 1 to 3 , comprising a gas quenching furnace body 1, a support frame 12 is fixed to the outer side wall of the gas quenching furnace body 1 with bolts to support the gas quenching furnace body 1, a mounting frame 24 is welded on the inner side wall of the gas quenching furnace body 1, a gas quenching chamber body 3 is fixed to the mounting frame 24 with bolts, a heat-resistant metal baffle plate 22 and a fixing plate 21 are welded between the gas quenching chamber body 3 and the gas quenching furnace body 1, a mounting groove 211 that fits the gas quenching chamber body 3 is opened on the fixing plate 21, four guide grooves 35 are evenly opened on the side wall of the gas quenching chamber body 3, and the baffle plates 22 are evenly distributed on both sides of the guide grooves 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 32 is provided on the gas quenching furnace body 1, a connecting groove 13 communicating with the connecting groove 32 is provided, a heat-resistant metal connecting pipe 321 is sealed and connected to the connecting grooves on the gas quenching chamber 3 and the gas quenching furnace body 1, the connecting pipe 321 is connected to the inert gas conveyor, and inert gas is vertically injected into the gas quenching chamber 3 through the connecting pipe 321, and a protective member 14 is installed on the connecting pipe 321. The protective member 14 is an air flow 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.

[0031] Reference Figures 1 to 3 A heating component 41 is fixed to the inner wall of the gas quenching chamber 3 with bolts, and the heating component 41 is electrically connected to the power supply and the control system, and the inert gas rushed into the gas quenching chamber 3 through the connecting pipe 321 is heated to quench the workpiece. A fixing frame 31 for placing the workpiece is fixed to the lower part of the gas quenching chamber 3 with bolts, and a metal guide plate 71 is rotatably connected to the side wall of the gas quenching chamber 3 through a rotating shaft, and a driving member 72 is fixed to the outer wall of the gas quenching furnace body 1 with bolts. The driving member 72 is a cylinder electrically connected to the power supply and the control system, and the driving rod of the cylinder passes through the gas quenching furnace body 1 and is in sealing contact with the gas quenching furnace body 1. The driving rod of the cylinder is rotatably connected to the guide plate 71, and an integrally formed stopper 711 is provided on the guide plate 71. An elastic member 712 connected to the mounting frame 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.

[0032] 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 plate 23 in contact with the cooling frame 51 is sealed in the gas quenching furnace body 1. One side of the baffle plate 23 abuts against the baffle plate 1 22 for sealing. A connecting groove 231 is provided on the baffle plate 23 between the adjacent baffle plates 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.

[0033] Reference Figures 1 to 3 A rear end cover 15 is bolted to one end of the gas quenching furnace body 1 close to the cooling frame 51, or a centrifugal fan 61 is bolted to 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. A mounting block 181 that fits the gas quenching chamber 3 is bolted to the front cover. An isolation member that fits 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 on the front cover 18 by bolts. The fan 17 is connected to the power supply, and 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 contacts the positioning groove 212 provided on the fixing plate 21, and the positioning groove 212 provided on the fixing plate 21 corresponds to the connecting groove 231 on the baffle 23. The fan 262 is used to accelerate the alternation of cold flow and hot flow gas in the gas quenching chamber 3, thereby improving the cooling speed of the workpiece. Example

[0034] 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; S200, the gas quenching furnace body 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, and then the heating component 41 in the gas quenching chamber 3 starts to heat the inert gas in the gas quenching chamber 3 to quench the workpiece; S210, after the gas quenching furnace body 1 delivers inert gas into the gas quenching chamber body 3 through the connecting pipe 321, the driving member 72 arranged 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 arranged on the guide plate 71 fits with the guide groove 35 on the gas quenching chamber body 3 to seal the gas quenching chamber body 3; 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 heat flow into the cooling frame 51 through the guide pipe 73, and the cold flow cooled by the cooling assembly 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; S310, after the workpiece is quenched, the driving member 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 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 to the cooling frame 51 through the guide pipe 73, and is cooled by the cooling assembly 52; S320, the fan 2 62 provided on the front 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 fan 2 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; S400, after the workpiece is cooled, the fan 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.

[0035] The implementation principle of the embodiment of the present application is: Open the front cover 18 of the gas quenching furnace body 1, put the workpiece to be processed into the fixed frame 31 in the gas quenching chamber 3 in the gas quenching furnace body 1, and then close the front cover 18. 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 rushes 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 arranged 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 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 are used to increase the velocity 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 body 3, thereby increasing the heat treatment efficiency of the workpiece.

[0036] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present 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 arranged 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 flow guide mechanism (7) corresponding to the side wall of the gas quenching chamber body (3).

2. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 1, characterized in that: The heating structure (4) comprises a heating component (41), the heating component (41) being arranged on the inner side wall of a gas quenching chamber (3), the gas quenching chamber (3) being provided with a connecting groove (32), the gas quenching furnace body (1) being provided with a connecting groove (13) corresponding to the connecting groove (32), the connecting groove (32) and the connecting groove (13) being provided with a connecting pipe (321) for conveying inert gas to the heating chamber, the connecting pipe (321) being 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) being provided with a guide groove (35), the guide groove (35) being connected to the guide mechanism (7).

3. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 2, characterized in that: The guide mechanism (7) comprises a plurality of guide plates (71), the guide plates (71) being rotatably connected to the side wall of the gas quenching chamber (3), the guide plates (71) being in contact with the guide grooves (35), a driving member (72) connected to the outer wall of the gas quenching furnace body (1) being arranged on the side of the guide plate (71) away from the gas quenching chamber (3), a driving rod of the driving member (72) being rotatably connected to the guide plate (71), and the fixed structure (2) comprising The invention relates to a fixed plate (21), wherein the fixed plate (21) is arranged between the gas quenching furnace body (1) and the gas quenching chamber body (3), wherein a mounting groove (211) is provided on the fixed plate (21) and is fitted with an outer wall of the gas quenching chamber body (3), and a plurality of baffle plates (22) corresponding to the guide plates (71) are arranged between the gas quenching chamber body (3) and the gas quenching furnace body (1), wherein the baffle plates (22) abut against a side of the fixed plate (21) close to the gas quenching chamber body (3).

4. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 1, 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 (3) is against the first baffle (22); the second baffle (23) is provided with a connecting groove (231) between adjacent baffles (22); a guide pipe (73) connected to the cooling structure (5) is provided in the connecting groove (231); the cooling structure (5) comprises 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).

5. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 4, 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) comprises a centrifugal fan (61); the centrifugal fan (61) is arranged on the rear end cover (15) and corresponds to the cooling frame (51); a connecting groove three (16) is provided on a 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).

6. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 3, 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 a 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 piece (182) abutting against an inner side 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); positioning grooves (212) corresponding to the fans (62) are provided on the fixing plate (21); the positioning grooves (212) correspond to the connecting grooves (231) on the baffle plate (23).

7. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 3, characterized in that: The guide plate (71) is provided with a stopper (711) which 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) is driven by the driving member (72) to rotate to a certain angle, the stopper (711) abuts against the mounting frame (24).

8. The vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 7, characterized in that: The stopper (711) is provided with an elastic member (712) connected to the mounting frame (24); a sealing member (713) is provided on a side of the guide plate (71) close to the gas quenching chamber (3); and when the stopper (711) and the gas quenching chamber (3) are in contact with each other after the guide plate (71) rotates, the sealing member (713) is in contact with the guide groove (35).

9. A workpiece processing method of a vacuum high-pressure gas quenching furnace with diversified flow channels, characterized in that: A vacuum high-pressure gas quenching furnace with diversity comprising any one of claims 1 to 8, 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), so that the mounting block (181) provided on the front end cover (18) abuts 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 (3) through the connecting pipe 1 (321), the guide plate (71) at the upper end of the gas quenching chamber (3) is closed, and then the heating component (41) in the gas quenching chamber (3) starts to heat the inert gas in the gas quenching chamber (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 heat 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 fan 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.

10. The workpiece processing method of a vacuum high-pressure gas quenching furnace with diversified flow channels according to claim 9, characterized in that: S210, after the gas quenching furnace body (1) conveys inert gas into the gas quenching chamber body (3) through the connecting pipe (321), a driving member (72) disposed 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 a stopper (711) on the guide plate (71) abuts against the outer wall of the gas quenching chamber body (3), and a sealing member (713) disposed on the guide plate (71) fits with a 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) to the cooling frame (51) through the guide pipe (73), 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 evenly contacted with the cold flow for cooling.

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