A quenching cooling mechanism and quenching method for heavy-duty end cap processing

Abstract

The present invention discloses a quenching cooling mechanism and a quenching method for heavy-duty head processing, which relate to the technical field of head quenching, and include: a quenching pool and a cooling component, wherein the quenching pool is divided into a first cavity and a second cavity by the cooling component, and a suction device, and the water in the second cavity is transported to the first cavity by the suction device so that a pressure difference is generated between the first cavity and the second cavity; the cooling component includes an upper mold, a base and a locking part, a cavity for accommodating a head blank is provided between the upper mold and the base, and the upper mold and the base are locked by a connecting part; wherein, after the cooling component is placed in the quenching pool; during cooling, the present invention forms a first flow channel and a second flow channel between the cooling component and the head blank, and the coolant circulates along the first flow channel and the second flow channel, and the inner and outer surfaces of the head blank dissipate heat evenly to reduce the temperature difference, so that the deformation of the head during cooling is more stable, which is helpful to improve the quality of the head.

Description

Technical Field

[0001] The invention relates to the technical field of end cap quenching, in particular to a quenching cooling mechanism and a quenching method for heavy end cap processing. Background Art

[0002] The end cap is a component used to seal the end of a container to isolate the internal and external media, also known as an end cap. The end cap of a cylindrical container is generally a rotating shell. The end caps corresponding to some large pressure vessels require corresponding large-diameter end caps, which are required to have the characteristics of high overall strength and strong sealing performance. Therefore, in the prior art, the heavy-duty large-diameter end caps are integrated to obtain the end caps with high overall strength and good sealing performance.

[0003] During the head forming process, it is necessary to perform multiple pressings, and after its hardness is greater than a certain value, it is quenched. The head is heated to a certain temperature in the furnace and then cooled in water to improve the overall strength of the head. At present, when the head blank is put into water, it is generally covered and buckled in the water. There is less water on the inner surface of the head blank and the fluidity is poor, which will inevitably lead to an increase in the temperature difference between the inner and outer surfaces of the blank. Especially for some heavy heads, the diameter and thickness are large. The increase in the temperature difference between the inner and outer surfaces will inevitably lead to an increase in the deformation during the cooling process, which will ultimately affect the forming quality of the head. Summary of the invention

[0004] The purpose of the present invention is to provide a quenching cooling mechanism and a quenching method for heavy-duty head processing to solve the deficiencies in the above-mentioned prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a quenching and cooling mechanism for heavy-duty head processing, comprising:

[0006] A quenching pool and a cooling assembly, wherein the quenching pool is separated into a first cavity and a second cavity by the cooling assembly;

[0007] A suction device, wherein the water in the second cavity is transported to the first cavity through the suction device so as to generate a pressure difference between the first cavity and the second cavity;

[0008] The cooling assembly comprises an upper die, a base and a locking portion, a cavity for accommodating the head blank is provided between the upper die and the base, and the upper die and the base are locked by a connecting portion;

[0009] After the cooling assembly is placed in the quenching tank, the locking portion is passively unlocked, and the upper die and the base are separated, so that a first flow channel is formed between the head blank and the upper die, and a second flow channel is formed between the head blank and the base;

[0010] The first flow channel and the second flow channel both communicate with the first cavity and the second cavity.

[0011] Preferably, it comprises an anchor rod, the lower end of which is fixedly mounted on the base, and the anchor rod slides through the upper mold.

[0012] Preferably, the cooling assembly further comprises a lifting plate, a clearance groove is provided on the upper portion of the lifting plate, and the lifting plate is slidably connected in the base.

[0013] Preferably, the locking portion includes a connecting plate, a trigger rod, a screw, a plug-in block and a trigger assembly, the connecting plate is fixedly mounted on the outside of the upper mold, the screw is rotatably connected to the connecting plate, the plug-in block is slidably plugged into the connecting plate, and a socket matching the plug-in block is provided on the outside of the base. When the cooling assembly is placed in the quenching pool, the trigger assembly drives the screw to rotate so that the plug-in block is separated from the base.

[0014] Preferably, the trigger assembly includes a positioning plate, a rack, and a gear. The positioning plate is fixedly mounted on the bottom of the quenching pool, the trigger rod is slidably inserted on the connecting plate, the rack and the trigger rod are fixedly connected, the gear is fixedly mounted on the outside of the screw rod, and the rack and the gear are meshed with each other.

[0015] Preferably, a protrusion is provided on the upper portion of the base, and the protrusion is matched with the inner surface of the head blank.

[0016] Preferably, a lifting ring is provided on the upper portion of the connecting plate, and the lifting ring is connected to the lifting equipment via a steel cable.

[0017] Preferably, the suction device includes a first pipe, a suction pump and a second pipe, one end of the first pipe is connected to the first cavity, the other end of the first pipe is connected to the suction pump, and the liquid inlet of the suction pump is connected to the second cavity through the second pipe.

[0018] A heavy head quenching method comprises the following steps:

[0019] S1, heating the head blank;

[0020] S2, heat preservation time of 20 to 30 minutes, then take out of the furnace and press;

[0021] S3, after pressing, measure the hardness of the head blank. If the hardness is ≥240HB, the head blank 4 is put into the furnace again;

[0022] S4, when the head blank is put into the furnace, the temperature in the furnace is >900℃, and then the temperature is raised to 1000±10℃ for insulation. After being taken out of the furnace, the head blank is transferred to the cooling assembly;

[0023] S5, the cooling assembly is cooled by water, and the suction device is turned on, and the water cools the head blank through the first flow channel and the second flow channel.

[0024] Preferably, in S2, the temperature of the head blank needs to be monitored in real time to ensure that the temperature of the head blank is maintained at ≥300°C during pressing, and if it is lower than 300°C, it is re-heated in the furnace.

[0025] In the above technical scheme, the present invention provides a quenching cooling mechanism and quenching method for heavy-duty head processing. After the cooling assembly is placed in the quenching pool, the locking part is passively unlocked to form a first flow channel between the head blank and the upper mold, and a second flow channel is formed between the head blank and the base. A height difference of the coolant is differentially generated between the first cavity and the second cavity through a suction device, so that the coolant circulates along the first flow channel and the second flow channel, and the inner and outer surfaces of the head blank dissipate heat evenly to reduce the temperature difference. The reduction in temperature difference helps to make the deformation of the head more stable during cooling, which helps to improve the quality of the head. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 It is an overall schematic diagram of a quenching cooling mechanism and a quenching method for heavy-duty head processing of the present invention;

[0028] Figure 2 It is an overall cross-sectional view of a quenching cooling mechanism and a quenching method for heavy-duty head processing of the present invention;

[0029] Figure 3 This is an appendix of a quenching cooling mechanism and quenching method for heavy head processing of the present invention. Figure 2 The enlarged schematic diagram of point A in the middle;

[0030] Figure 4 This is an appendix of a quenching cooling mechanism and quenching method for heavy head processing of the present invention. Figure 2 The enlarged schematic diagram of point B in the middle;

[0031] Figure 5 It is a structural schematic diagram of a quenching and cooling mechanism and a quenching method for heavy-duty head processing of the present invention when the upper die and the base are fixedly connected;

[0032] Figure 6 A cross-sectional view of a cooling assembly of a quenching cooling mechanism and a quenching method for heavy-duty end cap processing according to the present invention;

[0033] Figure 7 This is an appendix of a quenching cooling mechanism and quenching method for heavy head processing of the present invention. Figure 6Schematic diagram of the structure at C in the middle;

[0034] Figure 8 It is a schematic diagram of the upper die structure of a quenching cooling mechanism and a quenching method for heavy-duty head processing of the present invention;

[0035] Fig. 9 It is a schematic diagram of the base structure of a quenching cooling mechanism and a quenching method for heavy-duty head processing of the present invention;

[0036] Fig.10 It is a schematic diagram of the lifting plate structure of a quenching cooling mechanism and a quenching method for heavy-duty head processing of the present invention;

[0037] Fig.11 The present invention is a schematic diagram of the elastic component structure of a quenching cooling mechanism and a quenching method for heavy-duty head processing.

[0038] Explanation of the reference numerals: 1. quenching pool; 2. upper die; 21. first flow channel; 3. base; 31. second flow channel; 32. raised portion; 4. head blank; 5. lifting plate; 51. elastic member; 6. clearance groove; 7. positioning plate; 8. locking portion; 81. connecting plate; 82. trigger rod; 83. rack; 84. screw rod; 85. plug-in block; 851. socket; 86. gear; 9. anchor rod; 101. first cavity; 102. second cavity; 11. first pipeline; 12. suction pump; 13. second pipeline. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] See also Figure 1-11 , a quenching and cooling mechanism for heavy-duty head processing provided by an embodiment of the present invention comprises:

[0041] A quenching pool 1 and a cooling assembly, wherein the quenching pool 1 is separated into a first cavity 101 and a second cavity 102 by the cooling assembly;

[0042] A suction device, wherein the water in the second cavity 102 is transported to the first cavity 101 through the suction device so as to generate a pressure difference between the first cavity 101 and the second cavity 102;

[0043] The cooling assembly includes an upper die 2, a base 3 and a locking portion 8. A cavity for accommodating a head blank 4 is provided between the upper die 2 and the base 3. The upper die 2 and the base 3 are locked by the locking portion 8.

[0044] After the cooling assembly is placed in the quenching pool 1, the locking portion 8 is passively unlocked, and the upper die 2 and the base 3 are separated, so that a first flow channel 21 is formed between the head blank 4 and the upper die 2, and a second flow channel 31 is formed between the head blank 4 and the base 3;

[0045] The first flow channel 21 and the second flow channel 31 both communicate with the first cavity 101 and the second cavity 102 .

[0046] In the embodiment of the present invention, the upper mold 2 and the base 3 are combined to form a cavity that can easily accommodate the head blank 4. The cavity is adapted to the head blank 4. The upper cooling assembly is hoisted into the quenching pool 1 by a hoisting device, and the quenching pool 1 is separated into a first cavity 101 and a second cavity 102 by the cooling assembly.

[0047] During the hoisting process, the upper die 2 and the base 3 are fixedly connected by the locking part 8. When hoisted into the quenching tank 1, the locking part 8 is passively unlocked, and the base 3 moves downward under the action of gravity, and the head blank 4 moves downward synchronously, as shown in the attached figure. Figure 2 As shown in , a first flow channel 21 is formed between the head blank 4 and the upper mold 2, and a second flow channel 31 is formed between the head blank 4 and the base 3. At this time, the suction device sucks the cooling liquid in the second cavity 102 into the first cavity 101, so that there is a height difference between the cooling liquid in the first cavity 101 and the second cavity 102. The cooling liquid in the first cavity 101 has a tendency to flow to the second cavity 102. Through the setting of the first flow channel 21 and the second flow channel 31, the cooling liquid can flow continuously from the first cavity 101 to the second cavity 102. The cooling liquid circulates along the first flow channel 21 and the second flow channel 31, and the inner and outer surfaces of the head blank 4 dissipate heat evenly to reduce the temperature difference. The reduction in temperature difference helps to make the deformation of the head more stable during cooling, which helps to improve the quality of the head.

[0048] Yet another embodiment of the present invention comprises an anchor rod 9 , the lower end of which is fixedly mounted on the base 3 , and the anchor rod 9 slides through the upper mold 2 .

[0049] By setting the anchor rod 9, the upper mold 2 and the base 3 can be connected. After cooling is completed, the upper mold 2 is lifted upward by the lifting equipment, and the anchor rod 9 will slide relatively, and the gap between the upper mold 2 and the base 3 will increase until the end of the anchor rod 9 contacts the upper mold 2. In this way, under the connection action of the anchor rod 9, the upper mold 2 moves upward and the base 3 moves upward synchronously to complete the removal of the cooling assembly from the quenching pool 1. In addition, there is enough gap between the upper mold 2 and the base 3, which is convenient for unloading the head blank 4 and placing new materials.

[0050] In an embodiment of the present invention, the cooling assembly further comprises a lifting plate 5 , a clearance groove 6 is formed on the upper portion of the lifting plate 5 , and the lifting plate 5 is slidably connected in the base 3 .

[0051] After the upper mold 2 and the base 3 are separated, the base 3 moves downward, and the lower part of the lifting plate 5 contacts the lower inner wall of the quenching pool 1. In this way, after the base 3 moves downward, the head blank 4 moves downward synchronously, and the head blank 4 will be supported by the lifting plate 5. The head blank 4 is just embedded in the clearance groove 6, so that the head blank 4 is separated from the upper mold 2 and the base 3 to form a first flow channel 21 and a second flow channel 31. In addition, the clearance groove 6 can limit the head blank 4 in multiple directions and can still remain stable under the impact of the coolant.

[0052] In another embodiment of the present invention, please refer to Fig.11 An elastic member 51 is provided on one side of the lifting plate 5, and the elastic member 51 applies an upward thrust to the lifting plate 5. In this way, when unloading, under the thrust of the elastic member 51, the lifting plate 5 can push the head blank 4 upward, and there is still a certain gap between the head blank 4 and the base 3, which is more convenient when unloading the head blank 4.

[0053] In the embodiments of the present invention, please refer to Figure 2-6 The locking portion 8 includes a connecting plate 81, a screw rod 84, a plug-in block 85 and a trigger assembly. The connecting plate 81 is fixedly mounted on the outside of the upper mold 2. The screw rod 84 is rotatably connected to the connecting plate 81. The plug-in block 85 is slidably plugged into the connecting plate 81. A socket 851 that is compatible with the plug-in block 85 is provided on the outside of the base 3. When the cooling assembly is placed in the quenching pool 1, the trigger assembly drives the screw rod 84 to rotate so that the plug-in block 85 is separated from the base 3.

[0054] The connecting plate 81 is fixed on the upper mold 2, and the connecting plate 81 and the base 3 are slidably connected. By inserting the plug-in block 85 into the socket 851, the base 3 and the upper mold 2 can be relatively fixed. The movement of the plug-in block 85 can be controlled by the setting of the screw rod 84. When the cooling assembly is placed in the quenching pool 1, the screw rod 84 is driven by the trigger assembly to rotate the screw rod 84. In this way, the position of the plug-in block 85 can be adjusted. After the plug-in block 85 is detached from the base 3, the base 3 will move downward.

[0055] In an embodiment of the present invention, the trigger assembly includes a positioning plate 7, a trigger rod 82, a rack 83, and a gear 86. The positioning plate 7 is fixedly installed at the bottom of the quenching pool 1, the trigger rod 82 is slidably inserted into the connecting plate 81, the rack 83 and the trigger rod 82 are fixedly connected, and the gear 86 is fixedly installed on the outside of the screw rod 84, and the rack 83 and the gear 86 are meshed with each other.

[0056] When the cooling assembly is placed in the quenching pool 1, the positioning plates 7 respectively contact the two sides of the base 3, and the entire cooling assembly is positioned by the positioning plates 7. As the height of the cooling assembly decreases, the trigger rod 82 will contact the positioning plates 7, and the height of the trigger rod 82 cannot continue to decrease, while the base 3 and the upper mold 2 continue to move downward. During this process, the trigger rod 82 will synchronously limit the height of the rack 83, and the screw rod 84 will move downward with the upper mold 2. During the downward movement of the screw rod 84, the gear 86 will move downward along the rack 83. Since the gear 86 and the rack 83 are meshed with each other, the gear 86 will inevitably rotate during the downward movement. When the gear 86 rotates, it will synchronously drive the screw rod 84 to select. The screw rod 84 and the plug-in block 85 are threadedly connected. When the screw rod 84 rotates, the plug-in block 85 will move horizontally. 1 and 1. The upper mold 2 and the lower mold 3 are connected to each other by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5. The lower mold 2 and the lower mold 3 are connected by the lifting plate 5.

[0057] Furthermore, since the cooling component will only open and close after being immersed in the quenching pool 1 to form the first flow channel 21 and the second flow channel 31, the gas in the first flow channel 21 and the second flow channel 31 is greatly reduced. Even if a small amount of gas remains, the coolant flows in the first flow channel 21 and the second flow channel 31, and the gas can be discharged under the action of the flow of the coolant. The air in the second flow channel 31 is automatically discharged, which can avoid the residual air on the inner surface of the head blank 4 after entering the water, resulting in uneven contact of the inner wall of the head blank 4 with the coolant, thereby further improving the head molding quality.

[0058] In the embodiment of the present invention, a protrusion 32 is provided on the upper portion of the base 3 , and the protrusion 32 is matched with the inner surface of the head blank 4 .

[0059] The protrusion 32 and the inner surface of the head blank 4 are adapted to ensure the formation of the second flow channel 31 .

[0060] In an embodiment of the present invention, a lifting ring is provided on the upper part of the connecting plate 81, and the lifting ring is connected to a lifting device through a steel cable. The lifting ring is connected to the lifting device through a steel cable, and the lifting device can be a workshop crane, and the movement and height of the cooling assembly are controlled by the lifting device.

[0061] In an embodiment of the present invention, the suction device includes a first pipe 11, a suction pump 12 and a second pipe 13, one end of the first pipe 11 is connected to the first cavity 101, the other end of the first pipe 11 is connected to the suction pump 12, and the liquid inlet of the suction pump 12 is connected to the second cavity 102 through the second pipe 13.

[0062] After the base 3 and the upper mold 2 are placed in the quenching pool 1, the cooling liquid in the second cavity 102 can be continuously sucked by the suction pump 12. The cooling liquid enters the first cavity 101 after being transported through the first pipe 11. In this way, a height difference can be generated in the first cavity 101 and the second cavity 102. Since the first flow channel 21 and the second flow channel 31 are arranged to make the first cavity 101 and the second cavity 102 connected, the cooling liquid will flow from the first cavity 101 to the second cavity 102. During the flow process, the head blank 4 is cooled.

[0063] In another embodiment of the invention, the head blank 4 is extruded between the upper mold 2 and the base 3. The sizes of the upper mold 2 and the base 3 are fixed. After being extruded, the head blank 4 will correct the deformation caused by the heat treatment, thereby further reducing the dimensional deviation of the head.

[0064] A heavy head quenching method comprises the following steps:

[0065] S1, heating the head blank 4;

[0066] S2, heat preservation time of 20 to 30 minutes, then take out of the furnace and press;

[0067] S3, after pressing, measure the hardness of the head blank 4. If the hardness is ≥240HB, the head blank 4 is put into the furnace again;

[0068] S4, when the head blank 4 is put into the furnace, the temperature in the furnace is >900°C, and then the temperature is raised to 1000±10°C for insulation. After being taken out of the furnace, the head blank 4 is transferred to the cooling assembly;

[0069] S5, the cooling assembly is cooled by water, and the suction device is turned on, and the water cools the head blank 4 through the first flow channel 21 and the second flow channel 31.

[0070] In S2, the temperature of the head blank 4 needs to be monitored in real time to ensure that the temperature of the head blank 4 is maintained at ≥300°C during pressing, and if the temperature is lower than 300°C, it is re-heated in the furnace.

[0071] The head blank 4 is heated by an electric heating furnace, and is kept warm after being heated to a certain temperature. After the insulation is completed, the head blank 4 is taken out and pressed by a pressing device. The temperature needs to be detected during the pressing process. When the temperature is lower than 300 degrees Celsius, it needs to be heated again. After the pressing is completed and the hardness of the head blank 4 is greater than 240 HB, it needs to be put into the furnace again. The temperature in the furnace is above 900 degrees Celsius before entering the furnace. After entering the furnace, the temperature is raised to 1000 degrees Celsius and then kept warm. After the insulation is completed, the head blank 4 is taken out of the furnace and transferred to the cooling equipment, wherein the base 3 is supported by a support, and the lifting plate 5 needs to be suspended. After the head blank 4 is placed, the upper mold 2 descends, the upper mold 2 contacts the base 3, and the screw rod 84 is rotated to drive the plug-in block 85 to be inserted into the base 3.

[0072] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quenching and cooling mechanism for heavy-duty head processing, characterized in that: include: A quenching pool (1) and a cooling component, wherein the quenching pool (1) is separated into a first cavity (101) and a second cavity (102) by the cooling component; A suction device, wherein the water in the second cavity (102) is transported to the first cavity (101) through the suction device so as to generate a pressure difference between the first cavity (101) and the second cavity (102); The cooling assembly comprises an upper die (2), a base (3) and a locking portion (8); a cavity for accommodating a head blank (4) is provided between the upper die (2) and the base (3); the upper die (2) and the base (3) are locked by the locking portion (8); After the cooling assembly is placed in the quenching pool (1), the locking portion (8) is passively unlocked, and the upper die (2) and the base (3) are separated, so that a first flow channel (21) is formed between the head blank (4) and the upper die (2), and a second flow channel (31) is formed between the head blank (4) and the base (3); The first flow channel (21) and the second flow channel (31) are both in communication with the first cavity (101) and the second cavity (102); The cooling assembly further comprises a lifting plate (5), the upper portion of the lifting plate (5) being provided with a clearance groove (6), and the lifting plate (5) being slidably connected in the base (3); The locking portion (8) comprises a connecting plate (81), a screw rod (84), a plug-in block (85) and a trigger assembly, wherein the connecting plate (81) is fixedly mounted on the outside of the upper mold (2), the screw rod (84) is rotatably connected to the connecting plate (81), the plug-in block (85) is slidably plugged into the connecting plate (81), and a socket (851) adapted to the plug-in block (85) is provided on the outside of the base (3), and when the cooling assembly is placed in the quenching pool (1), the trigger assembly drives the screw rod (84) to rotate so that the plug-in block (85) is separated from the base (3); The trigger assembly comprises a positioning plate (7), a trigger rod (82), a rack (83), and a gear (86); the positioning plate (7) is fixedly mounted on the bottom of the quenching pool (1); the trigger rod (82) is slidably plugged into the connecting plate (81); the rack (83) and the trigger rod (82) are fixedly connected; the gear (86) is fixedly mounted on the outside of the screw rod (84); and the rack (83) and the gear (86) are meshed with each other; After the upper die (2) and the base (3) are separated, the base (3) moves downward, and the lower part of the lifting plate (5) contacts the lower inner wall of the quenching pool (1). After the base (3) moves downward, the head blank (4) moves downward synchronously, and the head blank (4) is supported by the lifting plate (5). The head blank (4) is just embedded in the clearance groove (6), so that the head blank (4) is separated from the upper die (2) and the base (3), so as to form a first flow channel (21) and a second flow channel (31).

2. A quenching and cooling mechanism for heavy-duty head processing according to claim 1, characterized in that: It comprises an anchor rod (9), the lower end of which is fixedly mounted on a base (3), and the anchor rod (9) slides through the upper mold (2).

3. A quenching and cooling mechanism for heavy-duty head processing according to claim 1, characterized in that: A raised portion (32) is provided on the upper portion of the base (3), and the raised portion (32) is matched with the inner surface of the head blank (4).

4. A quenching and cooling mechanism for heavy-duty head processing according to claim 1, characterized in that: A lifting ring is provided on the upper part of the connecting plate (81), and the lifting ring is connected to the lifting equipment via a steel cable.

5. A quenching and cooling mechanism for heavy-duty head processing according to claim 1, characterized in that: The suction device comprises a first pipe (11), a suction pump (12) and a second pipe (13); one end of the first pipe (11) is connected to the first cavity (101); the other end of the first pipe (11) is connected to the suction pump (12); and the liquid inlet of the suction pump (12) is connected to the second cavity (102) via the second pipe (13).

6. A heavy-duty end cap quenching method, which is implemented by the quenching and cooling mechanism for heavy-duty end cap processing according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, heating the head blank (4); S2, heat preservation time of 20 to 30 minutes, then take out of the furnace and press; S3, measuring the hardness of the head blank (4) after pressing, if the hardness is ≥240HB, the head blank (4) is put into the furnace again; S4, when the head blank (4) enters the furnace, the temperature in the furnace is >900°C, and then the temperature is raised to 1000±10°C for insulation. After exiting the furnace, the head blank (4) is transferred to a cooling assembly; S5, the cooling component is cooled by water, and the suction device is turned on, so that the water cools the head blank (4) through the first flow channel (21) and the second flow channel (31).

7. A heavy-duty head quenching method according to claim 6, characterized in that: In S2, the temperature of the head blank 4 needs to be monitored in real time to ensure that the temperature of the head blank (4) is maintained at ≥300°C during pressing. If the temperature is lower than 300°C, the head blank is reheated in the furnace.

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