CN115449808A - Copper strips surface treatment pickling equipment - Google Patents
Copper strips surface treatment pickling equipment Download PDFInfo
- Publication number
- CN115449808A CN115449808A CN202210999859.2A CN202210999859A CN115449808A CN 115449808 A CN115449808 A CN 115449808A CN 202210999859 A CN202210999859 A CN 202210999859A CN 115449808 A CN115449808 A CN 115449808A
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- Prior art keywords
- liquid
- copper strip
- acid
- conveying
- tank
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 81
- 239000010949 copper Substances 0.000 title claims abstract description 81
- 238000005554 pickling Methods 0.000 title claims abstract description 51
- 238000004381 surface treatment Methods 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 183
- 239000002253 acid Substances 0.000 claims abstract description 77
- 238000005507 spraying Methods 0.000 claims abstract description 62
- 238000005406 washing Methods 0.000 claims abstract description 30
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000011010 flushing procedure Methods 0.000 description 7
- 101100372509 Mus musculus Vat1 gene Proteins 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
- C23G3/02—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
- C23G3/023—Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously by spraying
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention relates to the technical field of copper strip surface treatment processing equipment, in particular to copper strip surface treatment pickling equipment, wherein the inside of an acid tank is divided into an upper shallow washing tank and a lower acid liquid storage tank up and down by a liquid leakage plate transversely arranged in the acid tank, the acid liquid storage tank is connected with an acid liquid pump, a conveying rail is transversely arranged in the shallow washing tank, the conveying rails are arranged at the upper end and the lower end of the copper strip at intervals, the length direction of the conveying rail is perpendicular to the conveying direction of the copper strip, each conveying rail is provided with a liquid spraying wheel, a liquid outlet is formed in the direction, facing one end of the copper strip, of each liquid spraying wheel, the liquid outlet end of the acid liquid pump is connected with a liquid conveying pipe, the liquid conveying pipe is designed into a telescopic structure, the liquid outlet end of the liquid conveying pipe is connected with the liquid spraying wheels, so that acid liquid in the acid liquid storage tank is continuously pumped into the liquid conveying pipe through the acid liquid spraying wheels, the liquid spraying wheels move along the conveying rails in a reciprocating manner, the liquid spraying wheels are close to the copper strip surface spraying liquid, and form turbulent flow or jet flow, and the aim of high-efficient and uniform pickling is fulfilled.
Description
Technical Field
The invention relates to the technical field of copper strip surface treatment processing equipment, in particular to copper strip surface treatment pickling equipment.
Background
The copper strip pickling processing system comprises a pickling device and a winding device, wherein the pickling device comprises a pickling tank, the middle inside of the pickling tank is divided into a first pickling tank and a second pickling tank through a partition plate, pickling solutions with different concentrations are respectively arranged in the first pickling tank and the second pickling tank to form secondary pickling, the deburring device can effectively remove burrs on the edge of the copper strip, and the air drying device can further dry residual acid liquor on the surface of the copper strip.
Disclosure of Invention
In view of the above, the invention aims to provide a copper strip surface treatment pickling device to solve the problems that the actual pickling quality is not high and the requirements of the copper strip on higher surface quality and color uniformity are difficult to meet.
Based on the above purpose, the invention provides a copper strip surface treatment pickling device, which comprises an acid tank, a squeezing roller arranged at one end outside the acid tank, and a coiling machine arranged at the other end outside the acid tank, and further comprises:
the copper strip is extruded and transmitted by the extrusion roller to enter the shallow washing tank for pickling, and then is wound by the winding machine in a rotating way, and the acid liquid storage tank is connected with an acid liquid pump;
the conveying rails are transversely arranged in the shallow washing tank, are arranged at the upper end and the lower end of the copper strip at intervals, and the length direction of the conveying rails is vertical to the conveying direction of the copper strip;
the liquid spraying wheel is arranged on each conveying rail, a liquid outlet is formed in the liquid spraying wheel towards one end of the copper strip, a liquid outlet end of the acid liquid pump is connected with a liquid conveying pipe, the liquid conveying pipe is designed to be of a telescopic structure, a liquid outlet end of the liquid conveying pipe is connected onto the liquid spraying wheel, and the liquid spraying wheel moves back and forth along the conveying rails and presses close to the surface of the copper strip to spray liquid.
Preferably, the liquid leakage plate is provided with uniformly distributed liquid leakage holes for leaking liquid downwards.
Preferably, when the acid tank is shut down, the acid liquor gradually leaks into the acid liquor storage tank from the liquor leakage plate.
Preferably, the liquid spraying wheels are aligned in the same direction along the conveying direction of the copper strip.
Preferably, the conveying rail is a reciprocating screw rod, and the liquid spraying wheel is connected to the reciprocating screw rod in an engaged mode.
Preferably, one end of the conveying rail penetrates out of the shallow washing tank and is connected with the driving wheels, and the driving wheels rotate synchronously to drive the conveying rail to rotate synchronously.
Preferably, the driving wheels are in transmission connection with the coiling machine, and the driving wheels are synchronously driven to rotate by the coiling machine.
Preferably, a liquid inlet is arranged on the liquid spraying wheel, and the liquid outlet end of the liquid conveying pipe is connected to the liquid inlet.
Preferably, the liquid outlet is designed in an annular shape along the liquid spraying wheel towards one end of the copper strip, or in a hole shape along the liquid spraying wheel towards one end of the copper strip.
Preferably, the liquid outlet is gradually closed from inside to outside.
The invention has the beneficial effects that: the copper strip is extruded and conveyed by the extrusion roller to enter the shallow washing tank for pickling, and then the copper strip is rotated and wound by the winding machine, the acid liquid storage tank is connected with an acid liquid pump, conveying rails are transversely arranged in the shallow washing tank, the conveying rails are arranged at the upper end and the lower end of the copper strip at intervals, the length direction of the conveying rails is perpendicular to the conveying direction of the copper strip, each conveying rail is provided with a liquid spraying wheel, a liquid outlet is formed in the direction, facing one end of the copper strip, of each liquid spraying wheel, the liquid outlet end of the acid liquid pump is connected with a liquid conveying pipe, the liquid conveying pipes are designed to be of a telescopic structure, the liquid outlet ends of the liquid conveying pipes are connected to the liquid spraying wheels, so that the acid liquid in the acid liquid storage tank is continuously pumped into the liquid conveying pipes through the acid liquid pump, the liquid spraying wheels are introduced, and the surfaces of the copper strip are close to the liquid spraying wheels while reciprocating along the conveying rails, and turbulent flow or pickling jet flow is formed, and the aim of efficient and uniform pickling is fulfilled.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description in the prior art will be briefly described below, it is obvious that the drawings in the following description are only the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the conveying rail and the liquid spraying wheel of the present invention;
FIG. 3 is a schematic view of the liquid spraying wheel of the present invention;
FIG. 4 is a schematic view of the construction of the shallow wash tank and the acid liquid storage tank of the present invention;
FIG. 5 is a schematic view of the structure of the liquid-jet wheel of the present invention.
Labeled as:
1. an acid tank; 2. a squeeze roll; 3. a coiler; 4. a liquid leakage plate; 5. shallow washing; 6. an acid liquor storage tank; 7. an acid liquid pump; 8. a transfer rail; 9. a liquid-spraying wheel; 91. a liquid inlet; 10. a liquid outlet; 11. a transfusion tube; 12. a driving wheel; 13. a first cold water flush tank; 14. a second cold water flush tank; 15. a brushing box; 16. a hot water storage tank; 17. a hot water flushing tank; 18. and (5) a drying box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to specific embodiments.
It is to be noted that technical terms or scientific terms used herein should have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
As shown in fig. 1 to 5, a copper strip surface treatment pickling apparatus comprises an acid tank 1, a squeezing roller 2 arranged at one end outside the acid tank 1, a coiling machine 3 arranged at the other end outside the acid tank 1, and a leakage plate 4 transversely arranged in the acid tank 1 to vertically divide the interior of the acid tank 1 into a shallow washing tank 5 at the upper end and an acid liquid storage tank 6 at the lower end, wherein a copper strip is squeezed and conveyed by the squeezing roller 2 into the shallow washing tank 5 for pickling, and then is rotated and coiled by the coiling machine 3, an acid liquid pump 7 is connected to the acid liquid storage tank 6, a conveying rail 8 is transversely arranged in the shallow washing tank 5, the conveying rails 8 are arranged at the upper end and the lower end of the copper strip at intervals, the length direction of the conveying rail 8 is perpendicular to the conveying direction of the copper strip, each conveying rail 8 is provided with a liquid spraying wheel 9, a liquid outlet 10 is arranged on the liquid spraying wheel 9 towards one end of the copper strip, the liquid outlet of the acid liquid pump 7 is connected with a liquid conveying pipe 11, the liquid conveying pipe 11 is designed to be a telescopic structure, the liquid outlet end of the liquid spraying pipe 11 is connected to the liquid spraying wheel 9, the liquid spraying wheel 9 moves back and forth along the conveying rail 8, and forth, and back and forth, and back, and forth, and back and forth, and forth the copper strip surface treatment device is arranged on the copper strip surface.
The invention is characterized in that an acid tank 1, a squeezing roller 2 arranged at one end outside the acid tank 1, a coiling machine 3 arranged at the other end outside the acid tank 1 and a liquid leaking plate 4 transversely arranged in the acid tank 1 are arranged to divide the interior of the acid tank 1 into a shallow washing tank 5 at the upper end and an acid liquid storage tank 6 at the lower end up and down, a copper strip is squeezed and conveyed into the shallow washing tank 5 through the squeezing roller 2 to be pickled and then is rotated and coiled through the coiling machine 3, an acid liquid pump 7 is connected on the acid liquid storage tank 6, conveying rails 8 are transversely arranged in the shallow washing tank 5, the conveying rails 8 are arranged at the upper end and the lower end of the copper strip at intervals, the length direction of the conveying rails 8 is vertical to the conveying direction of the copper strip, a liquid spraying wheel 9 is arranged on each conveying rail 8, a liquid outlet 10 is arranged at one end of the liquid spraying wheel 9 facing the copper strip, the liquid outlet end of the acid liquid pump 7 is connected with a conveying pipe 11, the liquid conveying pipe 11 is designed to be a telescopic structure, the liquid outlet end of the liquid conveying pipe 11 is connected with the liquid spraying wheel 9, thereby continuously pumping the acid liquid in the acid liquid storage tank 6 into the liquid conveying pipe 11 through the acid liquid pump 7, introducing the acid liquid into the liquid spraying wheel 9, enabling the liquid spraying wheel 9 to move back and forth along the conveying rail 8 and press close to the surface of the copper strip for spraying liquid, specifically, arranging uniformly distributed liquid leaking holes on the liquid leaking plate 4 for downward liquid leaking, enabling the speed of the leaked liquid to be equivalent to the extraction speed, basically maintaining the process of conveying the copper strip in the shallow washing tank 5 for shallow washing, but being equivalent to the existing direct immersion type drifting pickling mode, adopting the transverse isolation of the liquid leaking plate 4 to form the shallow washing mode of the shallow washing tank 5, enabling the liquid spraying wheel 9 to move back and forth along the conveying rail 8 while pickling the copper strip through shallow liquid transmission, enabling the liquid spraying to be close to the surface of the copper strip, efficiently forming turbulent flow or pickling jet flow in the shallow washing tank, and enabling the shallow washing tank 5 to flow from the acid liquid storage tank 6 to the acid liquid storage tank 6 and then to the shallow washing tank 5 to circularly flow, the aim of efficient and uniform pickling is achieved, under-pickling is avoided, in the process, no hardware is in direct contact, abrasion damage to the copper strip is avoided, in addition, each liquid spraying wheel 9 is aligned in the same direction in the conveying direction of the copper strip, the liquid spraying wheels 9 synchronously move in the same direction, each area on the surface of the copper strip is sequentially and completely pickled through the liquid spraying wheels 9 in a turbulent flow mode or a jet flow mode in a turbulent flow mode in the conveying direction, and the areas in the shallow pickling tank 5 are distributed in the turbulent flow mode or the jet flow pickling area, so that the efficient pickling effect is achieved, when the acid tank 1 is stopped, generally, when power failure occurs in a factory or abnormal maintenance of a machine set occurs, continuous operation of the machine set is interrupted, the metal stays in acid liquor for too long time, and the problem of over-pickling is easily caused, therefore, the acid liquid pump 7 stops working, and acid liquor gradually leaks into the acid liquor storage tank 6 from the liquid leakage plate 4 until the shallow pickling tank 5 is completely emptied, and the occurrence of over-pickling is avoided.
Wherein, still be equipped with first cold water flushing tank 13 between acid vat 1 and the squeeze roll 2, acid vat 1 rear end still is equipped with second cold water flushing tank 14 for the cold water washes the copper strips, second cold water flushing tank 14 rear end still is equipped with washing case 15 for further scrub the copper strips, washing case 15 rear end still is equipped with hot water flushing tank 17, hot water flushing tank 17 bottom is connected with hot water liquid reserve tank 16, is used for hot water to wash the copper strips, hot water flushing tank 17 rear end still is equipped with stoving case 18, is used for the copper strips of stoving to handle.
In the embodiment of the present invention, as shown in fig. 2 to 4, the conveying rail 8 is a reciprocating screw rod, the liquid spraying wheel 9 is engaged and connected to the reciprocating screw rod, one end of the conveying rail 8 penetrates out of the shallow washing tank 5 and is connected to a driving wheel 12, specifically, the driving wheel 12 can be a chain wheel, and the chain wheels can be engaged and connected by surrounding chains, so that the driving wheels 12 rotate synchronously to drive the conveying rail 8 to rotate synchronously and drive the liquid spraying wheel 9 to reciprocate synchronously along the conveying rail 8.
In the embodiment of the invention, the transmission wheel 12 is in transmission connection with the coiling machine 3, and specifically, the output end of the coiling machine 3 can be additionally connected in series with a sub-gear or sub-chain wheel structure, and is in transmission connection with the transmission wheel 12, so that the transmission wheels 12 are synchronously driven to rotate by the coiling machine 3, the transmission speed of the copper strip is in associated matching with the transverse moving speed of the liquid spraying wheel 9, and the effect of comprehensive pickling is achieved.
In the embodiment of the invention, as shown in fig. 5, the liquid spraying wheel 9 is provided with a liquid inlet 91, and the liquid outlet end of the liquid conveying pipe 11 is connected to the liquid inlet 91, so that the purpose of stable liquid conveying is achieved, and the purpose of limiting the liquid spraying wheel 9 to avoid rotation is achieved.
In the embodiment of the present invention, as shown in fig. 5, the liquid outlet 10 is designed in a ring shape along the spraying wheel 9 toward the end of the copper strip, or in a hole shape along the spraying wheel 9 toward the end of the copper strip, and the liquid outlet 10 is designed in a gradually closing-up shape from inside to outside, so as to spray liquid toward the copper strip to efficiently generate turbulence or jet.
In the copper strip surface treatment pickling equipment disclosed by the invention, the inside of an acid tank 1 is vertically divided into an upper shallow washing tank 5 and a lower acid liquid storage tank 6 by a liquid leakage plate 4 transversely arranged in the acid tank 1, a copper strip is extruded and conveyed by an extrusion roller 2 to enter the shallow washing tank 5 for pickling, and then is rotated and wound by a winding machine 3, an acid liquid pump 7 is connected onto the acid liquid storage tank 6, a conveying rail 8 is transversely arranged in the shallow washing tank 5, the conveying rails 8 are arranged at the upper end and the lower end of the copper strip at intervals, the length direction of the conveying rail 8 is perpendicular to the copper strip conveying direction, a liquid spraying wheel 9 is arranged on each conveying rail 8, a liquid outlet 10 is formed in one end, facing the copper strip, of the liquid spraying wheel 9, a liquid conveying pipe 11 is connected onto the liquid conveying pipe 11, the liquid conveying pipe 11 is designed to be of a telescopic structure, the liquid outlet end of the liquid spraying wheel 11 is connected onto the liquid conveying pipe 9, so that the acid liquid in the acid liquid storage tank 6 is continuously pumped into the liquid conveying pipe 11 by the acid liquid spraying wheel 7 and is introduced into the liquid conveying pipe 9, the liquid spraying wheel 9, the liquid conveying pipe 9 moves along the conveying rail 8, and turbulence is formed in the copper strip surface treatment pickling tank 5, and the copper strip surface is formed into a high-turbulence flow.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to those examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides a copper strips surface treatment pickling installation, includes the acid tank, locates the squeeze roll of the outer one end of acid tank, and locate the coiling machine of the outer other end of acid tank, its characterized in that still includes:
the copper strip is extruded and conveyed by the extrusion roller to enter the shallow washing tank for pickling, and then is rotated and wound by the winding machine, and the acid liquid storage tank is connected with an acid liquid pump;
the conveying rails are transversely arranged in the shallow washing tank, the conveying rails are arranged at the upper end and the lower end of the copper strip at intervals, and the length direction of the conveying rails is perpendicular to the conveying direction of the copper strip;
the liquid spraying wheels are arranged on the conveying rails, a liquid outlet is formed in one end, facing the copper strip, of each liquid spraying wheel, the liquid outlet end of the acid liquid pump is connected with a liquid conveying pipe, the liquid conveying pipe is designed to be of a telescopic structure, the liquid outlet end of the liquid conveying pipe is connected to the liquid spraying wheels, and the liquid spraying wheels move along the conveying rails in a reciprocating mode and are close to the surface of the copper strip for liquid spraying.
2. The copper strip surface treatment pickling equipment as recited in claim 1, wherein the weep plate is provided with weep holes uniformly distributed for weeping downwards.
3. The copper strip surface treatment pickling equipment as recited in claim 1, wherein acid liquor gradually leaks downwards from the liquor leaking plate into the acid liquor storage tank when the acid tank is shut down.
4. The copper strip surface treatment pickling apparatus according to claim 1, wherein each of the liquid spraying wheels is aligned in the same direction along the conveying direction of the copper strip.
5. The copper strip surface treatment pickling equipment as claimed in claim 1, wherein the conveying rail is a reciprocating screw rod, and the liquid spraying wheel is connected to the reciprocating screw rod in a meshing manner.
6. The pickling apparatus for copper strip surface treatment according to claim 5, wherein one end of the conveying rail penetrates out of the shallow washing tank and is connected with a driving wheel, and each driving wheel rotates synchronously to drive the conveying rail to rotate synchronously.
7. The copper strip surface treatment pickling equipment as claimed in claim 6, wherein the transmission wheels are in transmission connection with the recoiling machine, and the transmission wheels are synchronously driven to rotate by the recoiling machine.
8. The copper strip surface treatment pickling equipment as claimed in claim 1, wherein a liquid inlet is formed in the liquid spraying wheel, and a liquid outlet end of the liquid conveying pipe is connected to the liquid inlet.
9. The pickling apparatus for copper strip surface treatment according to claim 1, wherein the liquid outlet is designed in an annular shape along the end of the liquid spraying wheel facing the copper strip, or in a hole shape along the end of the liquid spraying wheel facing the copper strip.
10. The copper strip surface treatment pickling equipment according to claim 9, wherein the liquid outlet is gradually closed from inside to outside.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210999859.2A CN115449808A (en) | 2022-08-19 | 2022-08-19 | Copper strips surface treatment pickling equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202210999859.2A CN115449808A (en) | 2022-08-19 | 2022-08-19 | Copper strips surface treatment pickling equipment |
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CN115449808A true CN115449808A (en) | 2022-12-09 |
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CN202210999859.2A Pending CN115449808A (en) | 2022-08-19 | 2022-08-19 | Copper strips surface treatment pickling equipment |
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CN216192739U (en) * | 2021-10-10 | 2022-04-05 | 武汉钢铁江北集团金属制品有限公司 | Pickling high pressure washing unit |
CN114059076A (en) * | 2021-10-26 | 2022-02-18 | 四川汇源钢建科技股份有限公司 | Spraying device for pickling processing and using method thereof |
CN114029274A (en) * | 2021-12-03 | 2022-02-11 | 萍乡市合兴机械五金科技有限公司 | Zipper puller outer surface cleaning device |
CN216738552U (en) * | 2021-12-06 | 2022-06-14 | 嘉兴永励精密钢管有限公司 | Pickling device of production of precision tube usefulness |
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