CN113000752A - High-pressure water descaling device and method for forge piece - Google Patents
High-pressure water descaling device and method for forge piece Download PDFInfo
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- CN113000752A CN113000752A CN202110377276.1A CN202110377276A CN113000752A CN 113000752 A CN113000752 A CN 113000752A CN 202110377276 A CN202110377276 A CN 202110377276A CN 113000752 A CN113000752 A CN 113000752A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/14—Removing waste, e.g. labels, from cleaning liquid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a high-pressure water descaling device for a forged piece, which comprises a spraying assembly and a flexible detection assembly, wherein the spraying assembly comprises a spraying box with openings at the front side and the bottom, the spraying box is used for carrying out high-pressure spraying operation on the forged piece entering the spraying box to remove scale, the flexible detection assembly is arranged at the front side of the spraying box and comprises two rigid pieces which are opposite to each other and vertically arranged, springs are sleeved on the two rigid pieces, the upper parts of the springs protrude out of the top ends of the rigid pieces for a certain length to form free parts, an area for the forged piece to pass through is arranged between the free parts of the two springs, and the forged piece passes through the free parts of the two springs and then enters the spraying box to carry. The invention also discloses a descaling method. The method solves the problem of removing the oxide skin on the surface of the forging, has the advantages of stability and high efficiency, and fills the blank of equipment of the high-pressure water descaling device in the forging field.
Description
Technical Field
The invention belongs to the technical field of forging production, and particularly relates to a high-pressure water descaling device and method for a forging.
Background
When a metal material is subjected to thermoplastic forming such as forging and the like, heating and heat preservation are usually carried out at 1100-1300 ℃, a layer of compact oxide skin (scale) is formed on the surface of a forging piece under the heating condition, and if the scale skin is not completely removed during die forging and is pressed into the forging piece, pits and pits appear after the surface of the forging piece is cleaned, so that the final forging piece cannot meet the requirements in the aspects of precision, roughness and the like, and the difficulty of subsequent machining is increased; if the oxide skin is pressed into the parts in the forged piece, the forged piece becomes a waste product; in addition, the oxide skin has higher hardness, so that the deformation energy consumption is increased during forging, the abrasion of the forging die is accelerated, and the service life of the forging die is shortened. At present, the requirement of the forging field on the surface quality of a forging piece is increasingly improved, so that the problem of oxide skin during die forging needs to be solved.
The high-pressure water descaling technology is a widely applied scale removing technology, has a good descaling effect on common carbon steel materials with relatively regular shapes (round rods and plates), is usually used for fixing the round rods or the plates on a conveying belt during descaling, and conveys the materials to a descaling room by using the conveying belt for automatic descaling, can be carried out in batches, has high automation degree, mainly aims at the stage of mass production after forging forming, but does not have a high-pressure water descaling device for the forgings in the test stage after the forgings are heated and before the forgings are formed, if the traditional conveying belt mode is adopted for high-pressure water descaling, firstly, because the conveying belt is too large if the size of the forgings is larger, the large forgings cannot be produced in mass production generally, mass production is not required for automatic conveying belt, and thirdly, the shapes of some special forgings are complex, and fourthly, the forge piece is not fixed well by using a conveyor belt, because the forge piece needs to be descaled as soon as possible after being taken out by a manipulator in a hot boiler, and then is directly forged, the transfer time cannot be too long, if the conveyor belt is used, the forge piece needs to be placed on the conveyor belt by using clamping equipment such as the manipulator and the like, and then the forge piece is clamped for removing the forge piece after the descaling, and the process time is too long, so that the device and the method for removing the scale on the surface of the forge piece before forging the forge piece are required to be designed, and the problem of removing the scale on the surface of the forge piece after heating and before forming is solved.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a forging high pressure water descaling device, solve the problem of getting rid of surface cinder before the forging die forging of forging, have stable, efficient advantage, fill the equipment blank of high pressure water descaling device in the forging and pressing field.
In order to solve the technical problems, the invention adopts the following technical scheme:
a high-pressure water descaling device for a forged piece comprises a spraying assembly and a flexible detection assembly, wherein the spraying assembly comprises a spraying box with openings at the front side and the bottom, the spraying box is used for carrying out high-pressure spraying operation on the forged piece entering the spraying box to descale, the flexible detection assembly is arranged at the front side of the spraying box and comprises two rigid pieces which are right opposite and vertically arranged, springs are sleeved on the two rigid pieces, the upper parts of the springs protrude out of the top ends of the rigid pieces for a certain length to form free parts, a region for the forged piece to pass through is arranged between the free parts of the two springs, and the forged piece enters the spraying box for spraying operation after passing through the free parts of the two springs;
the forging spraying device comprises a water return tank arranged below an opening at the bottom of a spraying box, wherein the water return tank is connected with a water inlet end of a pressurizing device through a pipeline, and a water outlet end of the pressurizing device is connected with a high-pressure water pipe so as to pressurize liquid in the water return tank and push the liquid into the spraying box for spraying a forging;
the device comprises a filtering device, wherein the filtering device is arranged on a liquid flowing path between a water return tank and a water inlet end of a pressurizing device and is used for filtering oxide skin and preventing the oxide skin from entering the pressurizing device.
The spraying box is characterized in that two vertical spraying pipes are arranged in the spraying box, a plurality of nozzles are arranged on the spraying pipes at intervals along the length direction of the spraying pipes, the positions of the nozzles on the two spraying pipes correspond to one another, a spraying operation space is formed between the two spraying pipes, the spraying pipes are connected with high-pressure water pipes, a cross rod is horizontally arranged in the spraying box, a first sliding groove is formed in the cross rod along the length direction of the cross rod, and the upper portions of the spraying pipes are clamped in the first sliding groove and can move in the first sliding groove so as to adjust the distance between the two spraying pipes.
Preferably, the upper part of the spray pipe is sleeved with a limiting plate, the bottom surface of the limiting plate is connected with the top surface of the cross rod, and the limiting plate is locked with the cross rod through a locking structure.
Preferably, the locking structure comprises an annular groove formed in the limiting plate, a second sliding groove formed in the cross rod and parallel to the first sliding groove, and a bolt fastener, the groove width of the annular groove is matched with the groove width of the second sliding groove, and the bolt fastener penetrates through the annular groove and the second sliding groove and is locked through a nut so as to lock the limiting plate and the cross rod.
Preferably, the pressurizing device comprises a hydraulic station and an oil-water cylinder, the oil-water cylinder is provided with a water inlet and a water outlet, the water inlet is connected with the water return tank through a pipeline, the water outlet is connected with the high-pressure water pipe, and an oil passage is arranged between the hydraulic station and the oil-water cylinder, so that the pressure in the oil-water cylinder is controlled in a manner of introducing hydraulic oil, and the liquid in the water return tank is pressurized and then sent into the high-pressure water pipe for spraying operation.
Preferably, the free parts of the two springs are areas through which forgings pass, the distance between the two springs is smaller than or equal to the distance between any two corresponding nozzles, and the central symmetry planes of the two springs and the central symmetry planes of the two spray pipes are coplanar.
Preferably, the front side of the spraying box is provided with a long plate parallel to the cross rod, and the two rigid parts are slidably arranged on the long plate.
Preferably, the filtering device comprises a sieve plate arranged in the water return tank, a plurality of sieve holes for filtering oxide skin are formed in the sieve plate, the periphery of the sieve plate is tightly connected with the wall of the water return tank, so that the sieve plate divides the water return tank into two parts, one part forms a liquid storage cavity, the other part forms an oxide skin storage cavity, and the liquid storage cavity is connected with the water inlet end of the pressurizing device through a pipeline.
The secondary filtering device comprises a transition water tank, a water inlet and a water outlet are respectively arranged on two sides of the transition water tank, the transition water tank is positioned outside the water return tank, the water inlet and the water outlet of the transition water tank are respectively connected with the liquid storage cavity and the water inlet end of the pressurizing device through pipelines, a vertical partition plate is further arranged between the water inlet and the water outlet in the transition water tank, the side wall and the bottom end of the partition plate are respectively connected with the side wall and the bottom surface of the transition water tank in a sealing mode, and an overflow seam is arranged between the top end of the partition plate and the inner top surface of the transition.
The invention also provides a high-pressure water descaling method for the forge piece, which adopts the high-pressure water descaling device for the forge piece to descale and comprises the following specific steps:
step a, before descaling, adjusting the angle and the distance between the two spray pipes and the distance between the two springs according to the shape characteristics of the forge piece, so that the forge piece can theoretically pass between the two springs under the condition of not contacting with the springs;
and b, during descaling, the clamping equipment clamps the forge piece to pass through the space between the two springs and then enter the spraying box along a straight line to perform spraying operation, if the forge piece is contacted with the springs, the springs deform, namely the forge piece withdraws, and the clamping action of the clamping equipment is readjusted until the forge piece is not connected with the springs when passing through the space between the two springs.
Compared with the prior art, the invention has the following beneficial effects: through setting up the spray box, carry out the high pressure to the hot forging that is located the spray box and spray in order to detach the scale, the liquid and the scale that drop then get into the return water tank, through filtering the back, liquid gets into pressure device to liquid to in the return water tank pressurizes, lets in high pressure water pipe after the pressurization, thereby forms a spray circuit, and the circulation operation reaches the technological effect of stable, high-efficient removal scale, and energy-conserving effectual, fills the equipment blank of forging high pressure water descaling device in the forging and pressing field. And most forgings have large volume and complicated shape, the traditional conveyor belt type automatic operation cannot be adopted, the clamping equipment needs to be manually operated to clamp the forgings to enter the spraying box from the front side of the spraying box for high-pressure spraying descaling operation, deviation may occur when clamping is sent inwards every time, the forgings may collide with the spraying assembly, the positions of the forgings at each time are different, uniform descaling operation cannot be achieved on the surfaces of the forgings, the consistency of descaling results is reduced, a flexible detection assembly needs to be arranged on the front side of the spraying box, whether the clamping forgings are in the same position when being sent every time is detected, when the clamping forgings pass through the free parts of two springs, if the clamping forgings do not pass through the free parts of the two springs, if the clamping type of the forgings is contacted with the springs, the situation that the forgings are sent according to the clamping mode is possible to collide with the spraying assembly after entering the spraying box, therefore, the clamping mode needs to be withdrawn and readjusted until the clamping mode is free from contact with the spring when the clamping device passes through the clamping device, the upper portion of the spring is a free portion, the lower portion of the spring is sleeved on the rigid piece and restrained, and the clamping device can be quickly reset by utilizing elasticity of the spring to prepare for passing next time.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a flexible test assembly in an embodiment of the invention;
FIG. 3 is a schematic structural view of a spray assembly in an embodiment of the present invention;
fig. 4 is a partial structural schematic diagram of a spray assembly in an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: referring to fig. 1 to 4, a high-pressure water descaling device for a forged piece comprises a spraying assembly and a flexible detection assembly, wherein the spraying assembly comprises a spraying box 1 with an opening at the front side and the bottom, the spraying box is used for carrying out high-pressure spraying operation on the forged piece entering the spraying box to remove scale, the flexible detection assembly is arranged at the front side of the spraying box and comprises two rigid pieces 11 which are opposite and vertically arranged, springs 12 are sleeved on the two rigid pieces, the upper parts of the springs protrude out of the top ends of the rigid pieces to form free parts, an area for the forged piece to pass through is arranged between the free parts of the two springs, and the forged piece passes through the free parts of the two springs 12 and then enters the spraying box 1 to carry out spraying operation;
the forging spraying device comprises a water return tank 4 arranged below an opening at the bottom of a spraying box, wherein the water return tank 4 is connected with a water inlet end of a pressurizing device through a pipeline, and a water outlet end of the pressurizing device is connected with a high-pressure water pipe so as to pressurize liquid in the water return tank and push the liquid into the spraying box for spraying a forging;
the device comprises a filtering device, wherein the filtering device is arranged on a liquid flowing path between a water return tank and a water inlet end of a pressurizing device and is used for filtering oxide skin and preventing the oxide skin from entering the pressurizing device.
Therefore, through the arrangement of the spraying box, the hot forging in the spraying box is subjected to high-pressure spraying to remove oxide skins, the falling liquid and the oxide skins enter the water return tank, the liquid enters the pressurizing device after being filtered, so that the liquid in the water return tank is pressurized, and the high-pressure water pipe is introduced after the pressurization, so that a spraying loop is formed, the circulation operation is performed, the technical effect of stably and efficiently removing the oxide skins is achieved, the energy-saving effect is good, and the blank of the forging high-pressure water descaling device in the forging and pressing field is filled. And most forgings have large volume and complicated shape, the traditional conveyor belt type automatic operation cannot be adopted, the clamping equipment needs to be manually operated to clamp the forgings to enter the spraying box from the front side of the spraying box for high-pressure spraying descaling operation, deviation may occur when clamping is sent inwards every time, the forgings may collide with the spraying assembly, the positions of the forgings at each time are different, uniform descaling operation cannot be achieved on the surfaces of the forgings, the consistency of descaling results is reduced, a flexible detection assembly needs to be arranged on the front side of the spraying box, whether the clamping forgings are in the same position when being sent every time is detected, when the clamping forgings pass through the free parts of two springs, if the clamping forgings do not pass through the free parts of the two springs, if the clamping type of the forgings is contacted with the springs, the situation that the forgings are sent according to the clamping mode is possible to collide with the spraying assembly after entering the spraying box, therefore, the clamping mode needs to be withdrawn and readjusted until the clamping mode is free from contact with the spring when the clamping device passes through the clamping device, the upper portion of the spring is a free portion, the lower portion of the spring is sleeved on the rigid piece and restrained, and the clamping device can be quickly reset by utilizing elasticity of the spring to prepare for passing next time.
During implementation, two vertical spray pipes 2 are arranged in the spray box 1, a plurality of nozzles 3 are arranged on the spray pipes along the length direction at intervals, the positions of the nozzles on the two spray pipes correspond to one another, a spray operation space is arranged between the two spray pipes, the spray pipes 2 are connected with high-pressure water pipes, a cross rod 5 is horizontally arranged in the spray box, a first sliding groove 6 is formed in the cross rod along the length direction of the cross rod, and the upper portion of each spray pipe 2 is clamped in the first sliding groove 6 and can move in the first sliding groove to adjust the distance between the two spray pipes.
It is such, spray the case through setting up, at the incasement spray tube and nozzle of spraying, when spraying, the water under high pressure that the water under high pressure pipe came carries out the high pressure through the nozzle blowout to being located the steel that sprays the operation space and sprays in order to get rid of the oxide scale, and two spray tubes are vertical just to setting up, be convenient for carry out high-pressure injection to the side about the forging, get rid of the cinder of forging side, two spray tubes carry out the regulation of position through first spout, can be applicable to the forging of different grade type, have stably when getting rid of the forging cinder, efficient beneficial effect.
During implementation, the upper portion of the spray pipe 2 is sleeved with a limiting plate 7, the bottom surface of the limiting plate is connected with the top surface of the cross rod, and the limiting plate is locked with the cross rod through a locking structure.
Therefore, the spray pipe can be used for arranging the position of the spray pipe through the limiting plate, and the spray pipe is locked through the locking structure after the spray pipe is rotated and adjusted to a certain angle, so that the spray pipe is fixed firmly, and a good descaling effect is achieved.
During implementation, the locking structure includes ring channel 8, second spout 9 and the bolt fastener of seting up on limiting plate 7 and being parallel with first spout on the horizontal pole, and the groove width of ring channel and the groove width phase-match of second spout, bolt fastener pass ring channel and second spout and lock through the nut to locking limiting plate 7 and horizontal pole 5.
Therefore, through setting up the ring channel, after rotatory along with the spray tube, can have the place of coincidence with the second spout, the bolt fastener of being convenient for passes both and is connected with the nut to fixed rotatory spray tube after adjusting, the central angle that the ring channel corresponds represents the angular range that the spray tube can rotate promptly, in this application, selects the central angle that the ring channel corresponds to be 60 degrees.
When in implementation, the pressurizing device comprises a hydraulic station and an oil-water cylinder 10, the oil-water cylinder is provided with a water inlet and a water outlet, the water inlet is connected with the water return tank 4 through a pipeline, the water outlet is connected with a high-pressure water pipe, and an oil passage is arranged between the hydraulic station and the oil-water cylinder, so that the pressure in the oil-water cylinder is controlled in a manner of introducing hydraulic oil, and the liquid in the water return tank 4 is pressurized and then sent into the high-pressure water pipe for spraying operation.
The pressurizing device comprises a hydraulic station and an oil-water cylinder, a piston is arranged in the oil-water cylinder, an oil cavity and a water cavity are respectively arranged on two sides of the piston, the oil cavity is connected with the hydraulic station through an oil passage, the water cavity is provided with a water inlet and a water outlet and is respectively connected with a water return tank and a high-pressure water pipe, and a one-way valve can be respectively arranged on the two sides of the piston; when the spray gun works again, water is sucked firstly, and the piston is pulled back to the initial position to prepare for the next spray.
In implementation, the free parts of the two springs are areas through which forgings pass, the distance between the two springs is smaller than or equal to the distance between any two corresponding nozzles, and the central symmetry planes of the two springs 12 and the central symmetry planes of the two spray pipes 2 are coplanar.
Therefore, by setting the distance between the two springs and the position relation between the two springs and the nozzle, the clamping forge piece can be ensured not to collide with the nozzle when passing through the two springs in a contactless manner and then entering the spraying box, meanwhile, the forge piece can be centered and detected at every time, the forge piece is ensured not to deviate when entering at every time, and the descaling consistency is better.
In implementation, the front side of the spraying box 1 is provided with a long plate 13 parallel to the cross bar, and the two rigid parts are slidably arranged on the long plate.
Thus, by arranging the long plate, the rigid parts can slide, so that the distance between the two rigid parts can be adjusted, and the long plate is suitable for forgings with different sizes.
When the device is implemented, the filtering device comprises a sieve plate arranged in the water return tank 4, a plurality of sieve holes for filtering oxide skin are formed in the sieve plate, the periphery of the sieve plate is tightly connected with the wall of the water return tank, so that the sieve plate divides the water return tank into two parts, one part forms a liquid storage cavity, the other part forms an oxide skin storage cavity, and the liquid storage cavity is connected with the water inlet end of the pressurizing device through a pipeline.
It is so, through setting up the sieve, be divided into two with the return water tank, carry out preliminary cinder and filter, during the implementation, the sieve can incline to set up, and the sieve below is liquid storage chamber, and the top is cinder storage chamber, and the slope sets up and also can make the cinder fall the bottom easily and pile up, makes things convenient for the later stage to take out.
When the device is implemented, the device further comprises a secondary filtering device, the secondary filtering device comprises a transition water tank 14, a water inlet and a water outlet are respectively arranged on two sides of the transition water tank, the transition water tank is located outside the water return tank, the water inlet and the water outlet of the transition water tank are respectively connected with the liquid storage cavity and the water inlet end of the pressurizing device through pipelines, a vertical partition plate is further arranged between the water inlet and the water outlet in the transition water tank, the side wall and the bottom end of the partition plate are respectively connected with the side wall and the bottom surface of the transition water tank in a sealing mode, and an overflow seam is arranged between.
Therefore, the secondary filtering device is arranged, the filtering effect can be improved, no oxide skin enters the pressurizing device, the mode that the partition plate is arranged in the transition water tank is adopted for filtering, the effect that the oxide skin can be precipitated firstly when entering the transition water tank is utilized for filtering, and the overflow seam arranged at the top of the secondary filtering device is used for enabling liquid to pass through to the water outlet.
When the spray box is implemented, the front side of the spray box is open, the rear side of the spray box is closed, and the splash-proof frame 15 can be arranged at the front side opening of the spray box to prevent liquid from flying out of the spray box when the spray nozzles spray.
The invention also provides a high-pressure water descaling method for the forge piece, which adopts the high-pressure water descaling device for the forge piece to descale and comprises the following specific steps:
step a, before descaling, adjusting the angle and the distance between the corresponding nozzles and the distance between the two springs according to the shape characteristics of the forged piece, so that the forged piece can theoretically pass between the two springs under the condition of not contacting with the springs;
and b, during descaling, the clamping equipment clamps the forge piece to pass through the space between the two springs and then enter the spraying box along a straight line to perform spraying operation, if the forge piece is contacted with the springs, the springs deform, namely the forge piece withdraws, and the clamping action of the clamping equipment is readjusted until the forge piece is not connected with the springs when passing through the space between the two springs.
By the descaling method, the clamping position of the forge piece can be guided by the two springs before the forge piece is clamped by the clamping equipment and enters the spraying box, so that the damage to the nozzle caused by the forge piece entering the spraying box due to the clamping failure is prevented. In the embodiment, the forged piece is I-shaped steel, the parts needing to be emphatically removed with scale are two sides of the forged piece, the top and the bottom are not key parts to be removed, the top surface and the bottom surface of the forged piece are clamped during clamping, a cylindrical nozzle and a fan-shaped nozzle are selected to be matched for use in selection of the nozzles, water sprayed by the fan-shaped nozzle is in a fan shape, the striking surface is large and small, the unit striking force is small, the water sprayed by the cylindrical nozzle is cylindrical, the striking surface is a point and small in striking area, but large in unit striking force, the concave round corner part of the forged piece is sprayed by the cylindrical nozzle, the scale is most difficult to remove, larger unit striking force is needed, the other parts are sprayed by the fan-shaped nozzle, two spraying assemblies can be arranged side by side during actual operation, the number of the nozzles on one group of the spraying assemblies is increased, the water quantity is increased, so that the, the spray pipes on the group of spray assemblies reduce the number of the nozzles, improve the hitting power of a single nozzle, scour oxide skin, and better descale under the cooperation of the nozzles and the oxide skin.
Although embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents, and thus the embodiments of the present invention are intended only as illustrative examples of the invention and are not to be construed as limiting the invention in any way.
Claims (10)
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| CN202110377276.1A CN113000752B (en) | 2021-04-08 | 2021-04-08 | High-pressure water descaling device and method for forge piece |
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| CN202110377276.1A CN113000752B (en) | 2021-04-08 | 2021-04-08 | High-pressure water descaling device and method for forge piece |
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| CN113000752B CN113000752B (en) | 2022-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117600144A (en) * | 2023-12-15 | 2024-02-27 | 中国电子科技集团公司第二十九研究所 | Multifunctional cleaning machine and SIP product cleaning method |
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