Device and process for quickly releasing residual stress of base material and wear-resistant layer of striking plate

Abstract

The present invention discloses a device for quickly releasing the residual stress of the base material of the striking plate and the wear-resistant layer, and the main technical solution adopted is as follows: a number of base materials of the striking plate, and any two base materials of the striking plate are welded back to back to form a group of base materials of the striking plate. The group of base materials of the striking plate includes two front surfacing working surfaces and a large-area side surfacing working surface, and wear-resistant layers are surfacing on both the two front surfacing working surfaces and the large-area side surfacing working surface; an air mist cooling device, which includes a water supply unit, a gas supply unit, a first pressure-flow frequency conversion control unit connected to the water supply unit, a second pressure-flow frequency conversion control unit connected to the gas supply unit, at least one spraying unit respectively connected to the first pressure-flow frequency conversion control unit and the second pressure-flow frequency conversion control unit, a temperature sensor for real-time monitoring the temperature of the wear-resistant layer, and a control device.

Description

Technical Field

[0001] The present invention relates to the technical field of fan mills, and in particular to a device and process for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate. Background Art

[0002] During the use of a fan mill, the impact wheel is a wearing part and needs to be replaced regularly. According to the difference in coal quality, the designed safety working limit of the impact wheel is 2,000 hours. Each group of impact wheels is generally equipped with 12 inner impact plates and 12 outer impact plates. When the wear-resistant plate welding machine builds a wear-resistant layer on the base material, the production process of the inner and outer impact plates should fully consider eliminating the stress of the base material and controlling the deformation amount. The original process has a low production efficiency and there is a bottleneck. Since there are few domestic manufacturers of fan mills and the attention is not high, the efficient elimination of the stress of the base material and the control of the deformation amount have not been overcome. As a professional manufacturer of fan mills, our company has important research value in developing and reserving new welding processes and efficient stress elimination devices that meet the above requirements.

[0003] When the original equipment builds the impact plate by surfacing, the welding voltage is 350 - 400, the current is 31 - 33, the welding speed is 700 mm / min, the width of the weld bead is 10 - 12 mm, and the thickness of each layer increases by 2 - 3 mm. The surfacing sequence is as follows: side, front. According to the original process requirements, after surfacing one layer on the current plane, it needs to be flipped to continue surfacing the next plane. If the surfacing area is small and continuous surfacing is carried out, the surface temperature of the just-surfaced working surface will be too high. When surfacing again, the temperature of the base material will remain high, resulting in serious deformation and unable to meet the subsequent machining requirements. It is necessary to stop surfacing and wait for natural cooling. After the stress of the base material and the wear-resistant layer is fully released, surfacing can continue. Even overnight repair welding is required. A large amount of time cost is consumed on flipping and cooling, which seriously reduces the production efficiency.

[0004] The efficiency of natural cooling is extremely low and cannot meet the production requirements. In addition to natural cooling, several common cooling methods at present are mainly laminar flow cooling technology, through-water cooling technology and aerosol cooling technology. For the release of stress of the base material and the wear-resistant layer, because the density of water molecules in the laminar flow cooling technology is relatively large, it not only causes a large waste of water resources, but once a large amount of water remains on the working surface, it will lead to serious consequences such as delamination, honeycombing and bubbles between the surfacing layers, resulting in waste of scrap. The through-water cooling technology is mostly used for the controlled cooling of bars and cannot meet the actual needs of this process. Summary of the Invention

[0005] In view of this, the present invention provides a device and process for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate, mainly aiming to provide a device and process for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate that can instantaneously release the stress of the wear-resistant layer, prevent the excessive deformation of the base material of the impact plate, and improve the surfacing efficiency.

[0006] To achieve the above object, the present invention mainly provides the following technical solutions:

[0007] On the one hand, an embodiment of the present invention provides a device for quickly releasing the residual stress of the striker plate base material and the wear-resistant layer. It includes:

[0008] A number of striker plate base materials, any two of which are welded back to back to form a set of striker plate base materials. The set of striker plate base materials includes two front surfacing working surfaces and a large-area side surfacing working surface, and wear-resistant layers are surfacing on both the two front surfacing working surfaces and the large-area side surfacing working surface;

[0009] An air mist cooling device, which includes a water supply unit, a gas supply unit, a first pressure-flow frequency conversion control unit connected to the water supply unit, a second pressure-flow frequency conversion control unit connected to the gas supply unit, at least one spray unit respectively connected to the first pressure-flow frequency conversion control unit and the second pressure-flow frequency conversion control unit, a temperature sensor for real-time monitoring the temperature of the wear-resistant layer, and a control device; the water supply unit is used to provide spray water for the at least one spray unit, the gas supply unit is used to provide spray air flow for the at least one spray unit, the first pressure-flow frequency conversion control unit is used to adjust the water supply pressure of the water supply unit, the second pressure-flow frequency conversion control unit is used to adjust the gas supply pressure of the gas supply unit, the at least one spray unit is used to spray the water mist particles onto the wear-resistant layer being surfaced, and the control device is used to control the water supply unit, the gas supply unit, the first pressure-flow frequency conversion control unit, and the second pressure-flow frequency conversion control unit to work according to the real-time temperature of the wear-resistant layer being surfaced monitored by the temperature sensor.

[0010] As described above, any two of the striker plate base materials are welded back to back through fixing pieces.

[0011] As described above, the water supply unit includes: a water tank connected to an external water supply source, a multi-stage booster pump connected to the water tank, a filter connected to the multi-stage booster pump, a connecting pipe connected to the filter, a pressure gauge arranged on the connecting pipe, a quick connector connected to the connecting pipe, and a high-pressure rubber hose connected to the quick connector. The high-pressure rubber hose is connected to the first pressure-flow frequency conversion control unit.

[0012] As described above, the water supply unit further includes two liquid level detectors respectively arranged in the upper part and the lower part of the water tank.

[0013] As described above, the water supply unit further includes an electric heating device, and the electric heating device is installed at the lower part of the water tank.

[0014] As described above, the air supply unit includes: a screw air compressor, an air storage tank connected to the screw air compressor, and an air filter connected to the air storage tank, and the air filter is connected to the second pressure-flow frequency conversion control unit.

[0015] As described above, the first pressure-flow frequency conversion control unit includes a first throttle valve connected to the water supply unit, a first pressure reducing valve connected to the first throttle valve, and a first one-way check valve respectively connected to the first pressure reducing valve and the at least one spray unit.

[0016] As described above, the second pressure-flow frequency conversion control unit includes a second throttle valve connected to the air supply unit, a second pressure reducing valve connected to the second throttle valve, and a second one-way check valve respectively connected to the second pressure reducing valve and the at least one spray unit.

[0017] As described above, the at least one spray unit includes a first stop valve connected to the first pressure-flow frequency conversion control unit, a second stop valve connected to the second pressure-flow frequency conversion control unit, and a two-fluid nozzle respectively connected to the first stop valve and the second stop valve.

[0018] On the other hand, the present invention also provides a process for quickly releasing the residual stress of the striker base material and the wear-resistant layer, which is characterized in that it includes the following steps:

[0019] S1. Weld any two striker base materials back to back and splice them into a group of striker base materials;

[0020] S2. Use a wear-resistant plate welding machine to build up a wear-resistant layer on a front surfacing working surface of the group of striker base materials. At the same time, start an air mist cooling device to spray water mist particles onto the wear-resistant layer being built up, and complete the surfacing of the wear-resistant layer on a front surfacing working surface of the group of striker base materials;

[0021] S3. Flip the group of striker base materials to the other front surfacing working surface, use a wear-resistant plate welding machine to build up a wear-resistant layer on the other front surfacing working surface of the group of striker base materials. At the same time, start an air mist cooling device to spray water mist particles onto the wear-resistant layer being built up, and complete the surfacing of the wear-resistant layer on the other front surfacing working surface of the group of striker base materials;

[0022] S4. Flip the group of striker base materials to a large-area side surfacing working surface, use a wear-resistant plate welding machine to build up a wear-resistant layer on the large-area side surfacing working surface of the group of striker base materials. At the same time, start an air mist cooling device to spray water mist particles onto the wear-resistant layer being built up, and complete the surfacing of the wear-resistant layer on the large-area side surfacing working surface of the group of striker base materials;

[0023] S5. Repeat steps S1 - S4 to continue the surfacing of the wear-resistant layer of the next group of striker base materials.

[0024] By the above technical solution, the present invention (name) has at least the following advantages:

[0025] 1. The device for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate of the present invention is provided with a plurality of base materials of the impact plate. Any two base materials of the impact plate are welded back to back to form a group of base materials of the impact plate. The group of base materials of the impact plate includes two front surfacing operation surfaces and a large-area side surfacing operation surface. Wear-resistant layers are surfacing on both the two front surfacing operation surfaces and the large-area side surfacing operation surface; it enables the present invention to change the surfacing operation surface from the single 2 surfacing operation surfaces of the impact plate to 3 surfacing operation surfaces of a group of impact plates. The area of the side surfacing operation surface is twice the area of the side surfacing operation surface of the original single impact plate. The single plane becomes two upper and lower positive planes. Through process innovation, the number of surfacing operation surfaces is increased and the area of the surfacing operation surface is enlarged. Then, by cooperating with the continuous flipping of the surfacing operation surface, the base material is heated evenly, the temperature conduction is accelerated, and the high-temperature oxidation time is reduced, so as to eliminate the residual stress generated in the base material when surfacing the impact plate. And by setting an air mist cooling device, the broken water mist particles are ejected from at least one spraying unit by using accelerating gas. The two-fluid nozzle moves along with the wear-resistant plate welding machine, and the ejected water mist particles are dispersed onto the wear-resistant layer of the operation surface by their own weight, which can achieve temperature difference cooling, instantaneously release the stress of the wear-resistant layer, and prevent the excessive deformation of the base material, thereby improving the surfacing efficiency.

[0026] 2. In terms of time cost, the device for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate of the present invention not only saves the waiting time for natural cooling when releasing the stress of the wear-resistant layer, but also saves the processing time for frequently flipping the operation surface required by the original process. In terms of economic cost, it not only saves labor costs but also saves the cost of the fan mill. Its economic benefits are considerable. The above description is only an overview of the technical solution of the present invention. In order to be able to more clearly understand the technical means of the present invention and implement it in accordance with the content of the specification, the following takes the preferred embodiment of the present invention and combines with the drawings to describe in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of a group of base materials of the impact plate of an embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of the air mist cooling device of an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0029] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following combines with the drawings and preferred embodiments to describe in detail the specific implementation manners, structures, features and their effects according to the application of the present invention as follows.

[0030] AsFigure 1 and Figure 2 As shown in Figure 2 , a device for quickly releasing the residual stress of a striker plate base material and a wear-resistant layer according to an embodiment of the present invention includes: a plurality of striker plate base materials 1 and an aerosol cooling device 2.

[0031] As Figure 1 shown, for the plurality of striker plate base materials 1, any two striker plate base materials 1 are welded back to back to form a group of striker plate base materials. The group of striker plate base materials includes two front surfacing working surfaces 11 and a large-area side surfacing working surface 12. Wear-resistant layers 13 are surfacing-welded on both the two front surfacing working surfaces 11 and the large-area side surfacing working surface 12. Specifically, any two striker plate base materials 1 are temporarily welded back to back through fixing pieces.

[0032] As Figure 2As shown, the aerosol cooling device 2 includes a water supply unit 21, an air supply unit 22, a first pressure-flow variable frequency control unit 23 connected to the water supply unit 21, a second pressure-flow variable frequency control unit 24 connected to the air supply unit 22, at least one spray unit 25 respectively connected to the first pressure-flow variable frequency control unit 23 and the second pressure-flow variable frequency control unit 24, a temperature sensor for real-time monitoring of the temperature of the wear-resistant layer, and a control device 26; the water supply unit 21 is used to supply spray water to the at least one spray unit 25, the air supply unit 22 is used to supply spray air flow to the at least one spray unit 25, the first pressure-flow variable frequency control unit 23 is used to adjust the water supply pressure of the water supply unit 21, the second pressure-flow variable frequency control unit 24 is used to adjust the air supply pressure of the air supply unit 22, the at least one spray unit 25 is used to spray the water mist particles onto the wear-resistant layer 13 being surfacing welded, and the control device 26 is used to control the operation of the water supply unit 21, the air supply unit 22, the first pressure-flow variable frequency control unit 23 and the second pressure-flow variable frequency control unit 24 according to the real-time temperature of the wear-resistant layer 13 being surfacing welded monitored by the temperature sensor. Specifically, the water supply unit 21 includes: a water tank 211 connected to an external water supply source, a multi-stage booster pump 212 connected to the water tank 211, a filter 213 connected to the multi-stage booster pump 212, a connecting pipe connected to the filter 213, a pressure gauge 214 provided on the connecting pipe, a quick connector 215 connected to the connecting pipe, and a high-pressure rubber hose 216 connected to the quick connector 215, the high-pressure rubber hose 216 is connected to the first pressure-flow variable frequency control unit 23, and the filter 213 is a three-in-one filter. The water tank 211 includes a water inlet 2111 for connecting to an external water supply source and a water discharge port 2112. The water supply unit 21 further includes a return water safety valve 217 respectively connected to the water tank 211 and the multi-stage booster pump 212. The air supply unit 22 includes: a screw air compressor 221, an air storage tank 222 connected to the screw air compressor 221, and an air filter 223 connected to the air storage tank 222, and the air filter 223 is connected to the second pressure-flow variable frequency control unit 24. The first pressure-flow variable frequency control unit 23 includes a first throttle valve 231 connected to the water supply unit 21, a first pressure reducing valve 232 connected to the first throttle valve 231, and a first one-way check valve 233 respectively connected to the first pressure reducing valve 232 and the at least one spray unit 25. The second pressure-flow variable frequency control unit 24 includes a second throttle valve 241 connected to the air supply unit 22, a second pressure reducing valve 242 connected to the second throttle valve 241, and a second one-way check valve 243 respectively connected to the second pressure reducing valve 242 and the at least one spray unit 25.The at least one spray unit 25 includes a first cut-off valve 251 connected to the first pressure-flow variable-frequency control unit 23, a second cut-off valve 252 connected to the second pressure-flow variable-frequency control unit 24, and a two-fluid nozzle 253 connected to the first cut-off valve 251 and the second cut-off valve 252 respectively. Among them, a high-pressure rubber hose 216 is connected to a first throttle valve 231, an air filter 223 is connected to a second throttle valve 241, a first check valve 233 is connected to the first cut-off valve 251, and a second check valve 243 is connected to the second cut-off valve 252.

[0033] Further, in order to ensure that the water in the water tank is sufficient, as Figure 2 shown, the water supply unit 21 further includes two liquid level detectors 218 respectively arranged at the upper part and the lower part inside the water tank 211, and the two liquid level detectors 218 are used to detect the height of the water level in the water tank in real time.

[0034] Further, in order to facilitate the use of the aerosol cooling device in a low-temperature state, as Figure 2 shown, the water supply unit 21 further includes an electric heating device 219, and the electric heating device 219 is installed at the lower part of the water tank 211.

[0035] The device for quickly releasing the residual stress of the base material and wear-resistant layer of the quick-release striking plate in the embodiment of the present invention is equipped with a portable water mist laser particle size measuring instrument and a temperature measuring instrument, which are used to detect whether the spray content meets the standard and monitor the real-time temperature of the surfacing layer. A weld flaw detection instrument for structural parts can be optionally configured to detect in real time whether the surfacing operation surface meets the quality inspection requirements and whether there are quality problems such as delamination, honeycomb eyes, and bubbles. The innovative process and auxiliary device for quickly eliminating the residual stress of the surfacing wear-resistant layer of the striking plate have been put into use after several practices and debugging. The hardness index, appearance index and other parameters of the striking plate surfacing by the new process and auxiliary device fully meet the quality inspection requirements.

[0036] In the prior art, when a single-piece striking plate is welded, the deformation amount of the base material is relatively large, about 10 mm. A press with a pressure of more than 300T is required for leveling. This not only requires high parameters for the press, but also requires the operator to have rich experience, because the surfacing layer is prone to large-area cracking and falling off during the leveling process, and there are risks in operation; when optimized to weld two striking plates back to back, it takes 3 to 4 days to complete the welding of three pairs of striking plates. After using the stress elimination aerosol cooling device, the welding efficiency is greatly improved, and it only takes 1 day to complete the welding of three pairs of striking plates, and the production efficiency is increased by more than 3 times.

[0037] In terms of time cost, the advantage of the device for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate in the embodiment of the present invention is that it not only saves the waiting time for natural cooling during stress release, but also saves the processing time for frequently flipping the working surface required by the original process. When welding a complete set of impact plates for a fan mill, at least 12 days can be saved.

[0038] In terms of economic cost, the advantage of the device for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate in the embodiment of the present invention is that 2,400 yuan of labor cost can be saved in 12 days. Calculated based on an average overhaul period of 2,000 hours for each impact plate of the fan mill, 400,000 yuan can be saved for 40 fan mills in a year. Conservatively estimated for the company in ten years, the expenditure can be reduced by 4 million yuan, and the economic benefit is remarkable.

[0039] The device for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate of the present invention is provided with a number of base materials of the impact plate. Any two base materials of the impact plate are welded back to back to form a set of base materials of the impact plate. The set of base materials of the impact plate includes two front surfacing working surfaces and a large-area side surfacing working surface. Wear-resistant layers are surfacing on both the two front surfacing working surfaces and the large-area side surfacing working surface; enabling the present invention to change the surfacing working surface from the single 2 surfacing working surfaces of the impact plate to 3 surfacing working surfaces of a set of impact plates. The area of the side surfacing working surface is 2 times the area of the side surfacing working surface of the original single impact plate. The single plane becomes two upper and lower positive planes. Through process innovation, the number of surfacing working surfaces is increased and the area of the surfacing working surface is enlarged, and then combined with continuous flipping of the surfacing working surface to achieve uniform heating of the base material, accelerate temperature conduction and reduce the high-temperature oxidation time, so as to eliminate the residual stress generated in the base material when surfacing the impact plate. And by setting an air mist cooling device, accelerating gas is used to spray the broken water mist particles from at least one spraying unit. The two-fluid nozzle moves along with the wear-resistant plate welding machine, and the sprayed water mist particles are dispersed onto the wear-resistant layer of the working surface by their own weight, which can achieve temperature difference cooling, instantaneously release the stress of the wear-resistant layer, and prevent excessive deformation of the base material, thereby improving the surfacing efficiency.

[0040] On the other hand, the embodiment of the present invention also provides a process for quickly releasing the residual stress of the base material and wear-resistant layer of the impact plate, which is characterized in that it includes the following steps:

[0041] S1. Weld any two base materials of the impact plate back to back to form a set of base materials of the impact plate;

[0042] S2. Use a wear-resistant plate welding machine to surfacing a wear-resistant layer on one of the front surfacing working surfaces of the set of base materials of the impact plate. At the same time, start the air mist cooling device to spray water mist particles onto the wear-resistant layer being surfaced, and complete the surfacing of the wear-resistant layer on one of the front surfacing working surfaces of the set of base materials of the impact plate;

[0043] S3. Flip the set of striker plate base materials to another front surfacing operation surface, and use a wear-resistant plate welding machine to surfacing-weld a wear-resistant layer on the another front surfacing operation surface of the set of striker plate base materials. Meanwhile, start the aerosol cooling device to spray water mist particles onto the wear-resistant layer being surfacing-welded, and complete the surfacing-welding of the wear-resistant layer on the another front surfacing operation surface of the set of striker plate base materials;

[0044] S4. Flip the set of striker plate base materials to the large-area side surfacing operation surface, and use a wear-resistant plate welding machine to surfacing-weld a wear-resistant layer on the large-area side surfacing operation surface of the set of striker plate base materials. Meanwhile, start the aerosol cooling device to spray water mist particles onto the wear-resistant layer being surfacing-welded, and complete the surfacing-welding of the wear-resistant layer on the large-area side surfacing operation surface of the set of striker plate base materials;

[0045] S5. Repeat the steps of S1 - S4 to continue the surfacing-welding of the wear-resistant layer of the next set of striker plate base materials.

[0046] The device for quickly releasing the residual stress of the striker plate base material and the wear-resistant layer of the present invention is provided with a number of striker plate base materials. Any two striker plate base materials are welded back to back to form a set of striker plate base materials. The set of striker plate base materials includes two front surfacing operation surfaces and a large-area side surfacing operation surface, and wear-resistant layers are surfacing-welded on both the two front surfacing operation surfaces and the large-area side surfacing operation surface; this enables the present invention to change the surfacing operation surface from the single 2 surfacing operation surfaces of the striker plate to 3 surfacing operation surfaces of a set of striker plates. The area of the side surfacing operation surface is twice the area of the side surfacing operation surface of the original single striker plate. The single plane becomes two upper and lower positive planes. Through process innovation, the number of surfacing operation surfaces is increased and the area of the surfacing operation surface is enlarged. Then, by continuously flipping the surfacing operation surface, the base material is heated evenly, the temperature conduction is accelerated, and the high-temperature oxidation time is reduced, thereby eliminating the residual stress generated in the base material when surfacing the striker plate. And by setting an aerosol cooling device, the broken water mist particles are sprayed out from at least one spraying unit by using the accelerating gas. The two-fluid nozzle moves along with the wear-resistant plate welding machine, and the sprayed water mist particles are dispersed onto the wear-resistant layer of the operation surface by their own weight, which can achieve temperature difference cooling, instantaneously release the stress of the wear-resistant layer, and prevent the excessive deformation of the base material, thereby improving the surfacing efficiency. The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A process for quickly releasing the residual stress of the base material and wear-resistant layer of a striking plate, characterized in that, It includes the following steps: S1. Weld and splice any two striker plate base materials back to back to form a group of striker plate base materials; S2. Use a wear-resistant plate welding machine to build up a wear-resistant layer on one front facing welding surface of the group of striker plate base materials. Meanwhile, start the aerosol cooling device to spray water mist particles onto the wear-resistant layer being built up, and complete the build-up of the wear-resistant layer on one front facing welding surface of the group of striker plate base materials; S3. Flip the group of striker plate base materials to the other front facing welding surface, use a wear-resistant plate welding machine to build up a wear-resistant layer on the other front facing welding surface of the group of striker plate base materials. Meanwhile, start the aerosol cooling device to spray water mist particles onto the wear-resistant layer being built up, and complete the build-up of the wear-resistant layer on the other front facing welding surface of the group of striker plate base materials; S4. Flip the group of striker plate base materials to the large area side facing welding surface, use a wear-resistant plate welding machine to build up a wear-resistant layer on the large area side facing welding surface of the group of striker plate base materials. Meanwhile, start the aerosol cooling device to spray water mist particles onto the wear-resistant layer being built up, and complete the build-up of the wear-resistant layer on the large area side facing welding surface of the group of striker plate base materials; S5. Repeat steps S1 - S4 to continue the build-up of the wear-resistant layer for the next group of striker plate base materials; The aerosol cooling device includes a water supply unit, a gas supply unit, a first pressure and flow frequency conversion control unit connected to the water supply unit, a second pressure and flow frequency conversion control unit connected to the gas supply unit, at least one spray unit respectively connected to the first pressure and flow frequency conversion control unit and the second pressure and flow frequency conversion control unit, a temperature sensor for real-time monitoring of the temperature of the wear-resistant layer, and a control device; the water supply unit is used to provide spray water for the at least one spray unit, the gas supply unit is used to provide spray air flow for the at least one spray unit, the first pressure and flow frequency conversion control unit is used to adjust the water supply pressure of the water supply unit, the second pressure and flow frequency conversion control unit is used to adjust the gas supply pressure of the gas supply unit, the at least one spray unit is used to spray the water mist particles onto the wear-resistant layer being built up, and the control device is used to control the operation of the water supply unit, the gas supply unit, the first pressure and flow frequency conversion control unit, and the second pressure and flow frequency conversion control unit according to the real-time temperature of the wear-resistant layer monitored by the temperature sensor.

2. The process for quickly releasing the residual stress of the striker plate base material and the wear-resistant layer according to claim 1, characterized in that Any two striker plate base materials are welded together back to back through fixing pieces.

3. The process for quickly releasing the residual stress of the striker plate base material and the wear-resistant layer according to claim 1, characterized in that The water supply unit includes: a water tank connected to an external water supply source, a multi-stage booster pump connected to the water tank, a filter connected to the multi-stage booster pump, a connecting pipe connected to the filter, a pressure gauge arranged on the connecting pipe, a quick connector connected to the connecting pipe, and a high-pressure rubber hose connected to the quick connector, and the high-pressure rubber hose is connected to the first pressure and flow frequency conversion control unit.

4. The process for rapidly releasing the residual stress of the base material of the impact plate and the wear-resistant layer according to claim 3, characterized in that the water supply unit further includes two liquid level detectors respectively arranged at the upper part and the lower part inside the water tank.

5. The process for rapidly releasing the residual stress of the base material of the impact plate and the wear-resistant layer according to claim 3, characterized in that the water supply unit further includes an electric heating device, and the electric heating device is installed at the lower part of the water tank.

6. The process for rapidly releasing the residual stress of the base material of the impact plate and the wear-resistant layer according to claim 1, characterized in that the air supply unit includes: a screw air compressor, an air storage tank connected to the screw air compressor, and an air filter connected to the air storage tank, and the air filter is connected to the second pressure and flow frequency conversion control unit.

7. The process for rapidly releasing the residual stress of the base material of the impact plate and the wear-resistant layer according to claim 1, characterized in that the first pressure and flow frequency conversion control unit includes a first throttle valve connected to the water supply unit, a first pressure reducing valve connected to the first throttle valve, and a first one-way check valve respectively connected to the first pressure reducing valve and the at least one spray unit.

8. The process for rapidly releasing the residual stress of the base material of the impact plate and the wear-resistant layer according to claim 1, characterized in that the second pressure and flow frequency conversion control unit includes a second throttle valve connected to the air supply unit, a second pressure reducing valve connected to the second throttle valve, and a second one-way check valve respectively connected to the second pressure reducing valve and the at least one spray unit.

9. The process for rapidly releasing the residual stress of the base material of the striking plate and the wear-resistant layer according to claim 1, characterized in that, The at least one spray unit includes a first stop valve connected to the first pressure and flow frequency conversion control unit, a second stop valve connected to the second pressure and flow frequency conversion control unit, and a two-fluid nozzle respectively connected to the first stop valve and the second stop valve.

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