CN114131166A - Welding method and welding equipment for stainless steel foil strip - Google Patents
Welding method and welding equipment for stainless steel foil strip Download PDFInfo
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- CN114131166A CN114131166A CN202111537518.5A CN202111537518A CN114131166A CN 114131166 A CN114131166 A CN 114131166A CN 202111537518 A CN202111537518 A CN 202111537518A CN 114131166 A CN114131166 A CN 114131166A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/36—Auxiliary equipment
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- Arc Welding In General (AREA)
Abstract
The invention relates to the technical field of foil welding, in particular to a welding method and welding equipment for a stainless steel foil, wherein a spot welder is arranged on a movable assembly through the arrangement of the movable assembly, so that the spot welder can keep moving welding operation in a fixed direction, the directional stability of a welding process is ensured, and the attractiveness of a welding spot is improved; and through setting up mounting fixture at weld zone both ends, pass through mounting fixture and fix two stainless steel foil strips that are being welded connection, avoid welding process slip, dislocation, lead to the dislocation between the eclipsed layer and cause the relatively poor defect of welding quality, the solder joint area that has greatly improved when the stainless steel foil strip welding extends is pleasing to the eye and welding quality.
Description
Technical Field
The invention relates to the technical field of foil strip welding, in particular to a welding method and welding equipment for a stainless steel foil strip.
Background
The stainless steel foil strip is an ultra-thin strip-shaped material formed by repeatedly rolling a steel strip, and the thickness of the stainless steel foil strip is usually about one hundred to several hundred micrometers. When the stainless steel foil strips are produced and used, two sections of foil strips are often required to be spliced to increase the length, so that the stainless steel foil strips are convenient to use in more environments, and at present, two stainless steel foil strips are generally connected in a welding mode to be lengthened.
At present, stainless steel foil area welding extension adopts spot welding more, melts foil area local heating through high temperature and welds the back and be in the same place, and concrete operation is: two stainless steel foil strips are overlapped end to end, and staggered spot welding is respectively carried out on two sides of the overlapped area to form a plurality of welding points. However, the stainless steel foil is very thin, so that the foil is easy to break down and melt during welding, and the requirement on welding technology is extremely high; in the prior art, the thicker foil strip is often required to be covered on the outer side of the overlapping area, so that the spot welding machine is in contact with the thicker foil strip, the spot welding machine is prevented from being directly in contact with the ultrathin stainless steel foil strip, the ultrahigh temperature is prevented from being directly acted on the ultrathin foil strip, the welding connection of the ultrathin stainless steel foil strip is ensured not to be broken down by high temperature when being prolonged, and the welding effect is ensured.
The auxiliary use of the thicker foil strip greatly increases the thickness of the overlapping area, and the stability of welding connection can be ensured only by welding a plurality of welding spots in the overlapping area; however, often, during spot welding construction, a welder needs to manually adjust the position of a spot welder or a foil to achieve the purpose of prolonging the welding connection of a plurality of welding points, which causes the welding points to be arranged irregularly and the welding area to have poor aesthetic property, and greatly influences the use effect of the foil prolonged by welding connection; meanwhile, the number of overlapping layers of the overlapping area needing welding connection is increased due to the auxiliary use of the thicker foil strip, the welding process is easily influenced by welding technicians and other factors, the space of the welding overlapping area is staggered, the attractiveness of welding spots is influenced, the quality of the foil strip obtained by prolonging the welding connection is not up to standard easily, the foil strip needs to be welded again, and otherwise, the connection stability is poor.
In view of this, the present researchers comb corresponding technical defects encountered when welding stainless steel foil strips in daily life, and through continuous efforts and studies, improve welding equipment used when welding stainless steel foil strips, and provide a new idea for prolonging the technical field of stainless steel foil strip welding connection.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a welding method and welding equipment for a stainless steel foil strip.
The method is realized by the following technical scheme:
one of the purposes of the invention is to provide stainless steel foil strip welding equipment, which comprises an operation table, wherein a moving assembly is arranged on one side of the upper surface of the operation table, and a welding area is arranged on the opposite side of the upper surface of the operation table and the moving assembly; fixing clamps are arranged at two ends of the welding area, and a spot welding machine is arranged right above the welding area; the spot welder is connected with the moving assembly, and the moving assembly can drive the spot welder to move.
The spot welding machine is arranged on the movable assembly through the arrangement of the movable assembly, so that the spot welding machine can keep moving welding operation in a fixed direction, the directional stability of the welding process is guaranteed, and the attractiveness of a welding spot is improved; and through setting up mounting fixture at weld zone both ends, pass through mounting fixture and fix two stainless steel foil strips that are being welded connection, avoid welding process slip, dislocation, lead to the dislocation between the eclipsed layer and cause the relatively poor defect of welding quality, the solder joint area that has greatly improved when the stainless steel foil strip welding extends is pleasing to the eye and welding quality.
In order to fix the spot welding machine in one direction, move the spot welding machine in another direction to complete the spot welding operation, and ensure that the spot welding operation on the next welding line is performed after the spot welding on one line is completed, so as to improve the stability and convenience of the movement of the spot welding position of the spot welding machine, preferably, the moving assembly comprises a second sliding rail, the second sliding rail is connected with a second sliding table, and the second sliding table can freely slide on the second sliding rail; the second sliding table is connected with a first driving assembly, and the first driving assembly can drive and adjust the position of the second sliding table; a first sliding rail is arranged on the second sliding table, a first sliding table is connected to the first sliding rail, and the first sliding table can freely slide on the first sliding rail; the first sliding table is connected with a second driving assembly, and the second driving assembly can drive and adjust the position of the first sliding table; be equipped with the stand on the first slip table, the stand top is equipped with the crossbeam, the crossbeam is connected with third drive assembly, third drive assembly with the spot welder is connected.
In order to directly adjust the position of the spot welder directly above a welding area by using a manual operation and improve convenience, preferably, the first driving assembly comprises a second screw rod, two ends of the second screw rod are connected to the operating platform, a threaded hole for the second screw rod to pass through is formed in the second sliding table, and the second screw rod is matched with the threaded hole and penetrates through the threaded hole; a second handle is arranged at any end of the second screw rod; and a sliding assembly is arranged between the second screw and the operating platform. More preferably, the second driving assembly comprises a first screw, two ends of the first screw are connected to the second sliding table, a threaded hole for the first screw to pass through is formed in the first sliding table, and the first screw is matched with the threaded hole and penetrates through the threaded hole; a first handle is arranged at any end of the first screw rod; and a sliding assembly is arranged between the first screw and the second sliding table. More preferably, the sliding component is a bearing.
In order to automatically adjust the position of the spot welding machine entering the welding area, adjust the height of the spot welding machine from the welding area and control the welding process, preferably, the third driving assembly comprises a telescopic cylinder, the telescopic cylinder is fixed on the cross beam, a telescopic rod is arranged on the telescopic cylinder, and the telescopic rod can extend vertically and downwards; the bottom end of the telescopic rod is fixedly connected with the spot welding machine. The telescopic cylinder is selected from but not limited to an electric telescopic cylinder, a pneumatic telescopic cylinder or an oil cylinder; the fixed connection is realized by adopting bolt fixed connection, so that the spot welding machine is convenient to disassemble, replace, overhaul, install and the like.
In order to quickly take down the stainless steel foil strip and quickly clamp and fix the stainless steel foil strip, preferably, the fixing clamp comprises a fixing seat and a pressing plate, a rotating shaft is arranged between the fixing seat and the pressing plate, and the rotating shaft can enable the pressing plate to freely rotate on the fixing seat; the end part of the pressing plate is provided with a clamping tongue; the fixed seat is arranged on the upper surface of the operating platform, and a clamping plate is arranged at a position corresponding to the position where the fixed seat is arranged; the clamping plate is provided with a clamping hole, and the clamping hole can be matched and clamped with the clamping tongue; the cardboard is the elasticity cardboard.
In order to enhance the fixation of the stainless steel foil strip more tightly, preferably, a rubber cushion layer is arranged on the lower surface of the pressing plate.
The invention also aims to provide a welding method of the stainless steel foil strip, which utilizes the stainless steel foil strip welding equipment to weld and specifically comprises the following steps:
s1: placing two pieces of stainless steel foil strips to be welded and connected in a welding area, overlapping the two pieces of stainless steel foil strips to form a welding area, and fixing the stainless steel foil strips by using a fixing clamp;
s2: the moving assembly is utilized to adjust the moving position of the spot welding machine, so that after the spot welding machine moves to the direction capable of keeping fixed, the spot welding machine is operated to weld in a welding area, and then the stable welding of the stainless steel foil strip can be completed.
Compared with the prior art, the invention has the technical effects that:
the invention improves and researches the structure of the stainless steel foil strip welding equipment, adopts the structure arrangement of the movable assembly, realizes the fixation and adjustment of the spot welding machine, controls the working position of the spot welding machine, stabilizes the position of the spot welding machine when welding the stainless steel foil strip in a welding area, further stabilizes the accurate positioning of the welding position on the stainless steel foil strip, and improves the aesthetic property of the welding seam; meanwhile, the positions of the stainless steel foil strips are fixed by arranging the fixing clamps at the two ends of the welding area, the defect that the welding quality is poor due to the fact that overlapping areas are staggered is avoided, and the welding efficiency, the welding quality and the welding attractiveness of the stainless steel foil strips are guaranteed.
The stainless steel foil strip welding device is simple in structure, easy to prepare and process, convenient to use and simple to operate, requirements of stainless steel foil strips on professional technical talents during welding are reduced, and labor cost of construction workers is reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the invention.
Fig. 2 is a partial structural schematic diagram of the moving assembly in fig. 1.
Fig. 3 is a partially enlarged schematic view of fig. 1.
Fig. 4 is a schematic view of a welding operation.
The device comprises the following components of 1-a telescopic cylinder 2-a telescopic rod 3-a cross beam 4-an upright post 5-a first sliding table 6-a first screw rod 7-a first handle 8-a first sliding rail 9-a second sliding table 10-a second sliding rail 11-a second screw rod 12-a second handle 13-a spot welding machine 14-an operating table 15-a fixed clamp 16-a welding area 17-a rubber cushion layer 18-a fixed seat 19-a rotating shaft 20-a pressing plate 21-a clamping tongue 22-a clamping plate 23-a clamping hole.
Detailed Description
The technical solution of the present invention is further defined in the following description with reference to the accompanying drawings and the specific embodiments, but the scope of the claimed invention is not limited to the description.
As shown in fig. 1 and 4, in this embodiment, the stainless steel foil strip welding apparatus includes a console 14, a moving component is disposed on one side of the upper surface of the console 14, and a welding area 16 is disposed on the opposite side of the upper surface of the console 14 from the moving component; fixing clamps 15 are arranged at two ends of the welding area 16, and a spot welding machine 13 is arranged right above the welding area 16; the spot welder 13 is connected with the moving assembly, and the moving assembly can drive the spot welder 13 to move.
In use (as shown in fig. 4): overlapping the stainless steel foil strips to be welded, connected and extended end to end, and then placing the stainless steel foil strips on a welding area 16 to form a welding area on the overlapped area; then, the two stainless steel foil belts positioned at the two ends of the welding area 16 are clamped and fixed by using the fixing clamp 15, so that the area overlapped on the welding area 16 is stable; after adjusting the moving assembly so that the spot welder 13 is moved to the appropriate position on the welding zone 16 and remains fixed directly above the welding zone 16, the spot welder 13 and the moving assembly are turned on, the spot welder 13 is moved to the overlapping portion in the welding zone 16 up to a height position where the stainless steel foil strip can be welded, so that the stainless steel foil strip is welded, and moves along one direction to realize the formation of a straight welding spot and a welding seam, and then after the completion of a straight welding spot and a welding seam, moving the welding rod to form another welding point position and welding line until the welding is finished, loosening the fixing clamp 15, taking down the stainless steel foil belt, the welding of the stainless steel foil strip can be finished, the welding spot position and the attractiveness of the formed welding line are improved, meanwhile, the quality of welding spots and welding seams is improved, and the welding stability of the stainless steel foil strips is guaranteed.
As shown in fig. 1 and fig. 2, in this embodiment, the moving assembly includes a second slide rail 10, a second sliding table 9 is connected to the second slide rail 10, and the second sliding table 9 can freely slide on the second slide rail 10; the second sliding table 9 is connected with a first driving assembly, and the first driving assembly can drive and adjust the position of the second sliding table 9; a first sliding rail 8 is arranged on the second sliding table 9, a first sliding table 5 is connected to the first sliding rail 8, and the first sliding table 5 can freely slide on the first sliding rail 8; the first sliding table 5 is connected with a second driving assembly, and the second driving assembly can drive and adjust the position of the first sliding table 5; be equipped with stand 4 on the first slip table 5, 4 tops of stand are equipped with crossbeam 3, crossbeam 3 is connected with third drive assembly, third drive assembly with spot welder 13 is connected. When in use, the spot welding machine 13 is moved to a proper position of a welding area by the action of the second slide rail 10 and the second sliding table 9; and then the spot welding machine 13 is driven to a proper height away from the overlapping area of the stainless steel foil belt by utilizing the action of the third driving assembly on the cross beam 3, and after the spot welding machine 13 is started for welding, the spot welding machine 13 is driven and adjusted by utilizing the action of the first sliding rail 8 and the first sliding table 5, so that the operation of moving the spot welding machine 13 on a straight line is realized, the welding area of the spot welding machine 13 at the overlapping position of the stainless steel foil belt is ensured to be stabilized on a straight line, the welding attractiveness is improved, and meanwhile, the welding quality is improved by combining the action of the fixing clamp 15.
As shown in fig. 1 and fig. 2, in this embodiment, the first driving assembly includes a second screw 11, two ends of the second screw 11 are connected to the operating table 14, a threaded hole for the second screw 11 to pass through is formed in the second sliding table 9, and the second screw 11 is matched with the threaded hole and penetrates through the threaded hole; a second handle 12 is arranged at any end of the second screw rod 11; a sliding component, such as a bearing, is arranged between the second screw 11 and the operating platform 14. The welding device is convenient to operate and adjust, can fix the position after the adjustment is completed, improves the stability of the welding process, and ensures the convenience and the welding quality of welding.
As shown in fig. 1 and 2, in this embodiment, the second driving assembly includes a first screw rod 6, two ends of the first screw rod 6 are connected to the second sliding table 9, a threaded hole for the first screw rod 6 to pass through is formed in the first sliding table 5, and the first screw rod 6 is matched with the threaded hole and penetrates through the threaded hole; a first handle 7 is arranged at any end of the first screw 6; a sliding component, such as a bearing, is arranged between the first screw 6 and the second sliding table 9. The convenience is improved by utilizing the handle for adjustment.
As shown in fig. 1 and fig. 2, in this embodiment, the third driving assembly includes a telescopic cylinder 1, the telescopic cylinder 1 is fixed on the cross beam 3, a telescopic rod 2 is disposed on the telescopic cylinder 1, and the telescopic rod 2 can extend vertically and downwardly; the bottom end of the telescopic rod 2 is fixedly connected with the spot welding machine 13. The height of the spot welding machine 13 from the welding area 16 can be conveniently adjusted, the strength of the surface action of the stainless steel foil strip can be conveniently adjusted, and the welding effect is guaranteed. The telescopic cylinder 1 in the embodiment is selected from, but not limited to, an electric telescopic cylinder, a pneumatic telescopic cylinder or an oil cylinder; in this embodiment, the fixed connection is a bolt fixed connection, which is more convenient for operations such as replacement, overhaul and installation of the spot welding machine 13.
As shown in fig. 1 and 3, in this embodiment, the fixing clamp 5 includes a fixing seat 18 and a pressure plate 20, a rotating shaft 19 is disposed between the fixing seat 18 and the pressure plate 20, and the rotating shaft 19 enables the pressure plate 20 to rotate freely on the fixing seat 18; the end part of the pressure plate 20 is provided with a clamping tongue 21; the fixed seat 18 is installed on the upper surface of the operating table 14, and a clamping plate 22 is further arranged at a position corresponding to the position where the fixed seat 18 is installed; a clamping hole 23 is formed in the clamping plate 22, and the clamping hole 23 can be matched and clamped with the clamping tongue 21; the catch plate 22 is a resilient catch plate. The stainless steel foil strip can be clamped and fixed, the stainless steel foil strip is prevented from sliding, overlapping regions are prevented from being staggered, the defect of poor welding quality is overcome, and the welding effect and the welding seam quality of the stainless steel foil strip are improved.
In this embodiment, as shown in fig. 3, a cushion layer 17 is provided on the lower surface of the pressing plate 20. Can improve the stability of clamping and fixing the stainless steel foil belt, also can avoid simultaneously clamping and fixing the stainless steel foil belt and cause the phenomenon of deformation, ensure the steady quality of stainless steel foil belt.
As shown in fig. 4, in this embodiment, the welding method of the stainless steel foil strip, which uses the welding apparatus of the stainless steel foil strip shown in fig. 1-3 to weld, specifically includes the following steps:
s1: placing two stainless steel foil strips to be welded and connected in a welding area 16, overlapping the two stainless steel foil strips to form a welding area, and fixing the stainless steel foil strips by using a fixing clamp 15;
s2: the moving position of the spot welding machine 13 is adjusted by the moving assembly, so that after the spot welding machine 13 moves to the direction capable of keeping fixed, the spot welding machine 13 is operated to weld in a welding area, and then the stable welding of the stainless steel foil strip can be completed.
The welding process is simple, the stability of the stainless steel foil strips on the welding equipment can be fully guaranteed, the defects that welding seam quality and welding seam attractiveness are poor due to the fact that the stainless steel foil strips are overlapped and welded and connected in a staggered mode can be fully avoided, and the quality of welding connection of the stainless steel foil strips is greatly improved.
The invention can be realized by making reference to the prior art or common general knowledge and conventional technical means which are well known to those skilled in the art; technical terms for orientations set forth in the inventive concept are described with reference to the accompanying drawings, and thus, those skilled in the art should understand the inventive concept with reference to the accompanying drawings.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The stainless steel foil strip welding equipment is characterized by comprising an operation table (14), wherein a moving assembly is arranged on one side of the upper surface of the operation table (14), and a welding area (16) is arranged on one side, opposite to the moving assembly, of the upper surface of the operation table (14); fixing clamps (15) are arranged at two ends of the welding area (16), and a spot welding machine (13) is arranged right above the welding area (16); the spot welding machine (13) is connected with the moving assembly, and the moving assembly can drive the spot welding machine (13) to move.
2. The stainless steel foil strip welding device according to claim 1, wherein the moving assembly comprises a second slide rail (10), a second sliding table (9) is connected to the second slide rail (10), and the second sliding table (9) can freely slide on the second slide rail (10); the second sliding table (9) is connected with a first driving assembly, and the first driving assembly can drive and adjust the position of the second sliding table (9); a first sliding rail (8) is arranged on the second sliding table (9), a first sliding table (5) is connected to the first sliding rail (8), and the first sliding table (5) can freely slide on the first sliding rail (8); the first sliding table (5) is connected with a second driving assembly, and the second driving assembly can drive and adjust the position of the first sliding table (5); be equipped with stand (4) on first slip table (5), stand (4) top is equipped with crossbeam (3), crossbeam (3) are connected with third drive assembly, third drive assembly with spot welder (13) are connected.
3. The stainless steel foil strip welding device according to claim 2, wherein the first driving assembly comprises a second screw (11), two ends of the second screw (11) are connected to the operating platform (14), a threaded hole for the second screw (11) to pass through is formed in the second sliding platform (9), and the second screw (11) is matched with the threaded hole and penetrates through; a second handle (12) is arranged at any end of the second screw rod (11); a sliding assembly is arranged between the second screw rod (11) and the operating platform (14).
4. The stainless steel foil strip welding device according to claim 2, wherein the second driving assembly comprises a first screw (6), two ends of the first screw (6) are connected to the second sliding table (9), a threaded hole for the first screw (6) to pass through is formed in the first sliding table (5), and the first screw (6) is matched with the threaded hole and penetrates through; a first handle (7) is arranged at any end of the first screw (6); and a sliding assembly is arranged between the first screw (6) and the second sliding table (9).
5. The stainless steel foil strip welding apparatus of claim 3 or 4, wherein said sliding member is a bearing.
6. The stainless steel foil strip welding device according to claim 2, wherein the third driving assembly comprises a telescopic cylinder (1), the telescopic cylinder (1) is fixed on the cross beam (3), a telescopic rod (2) is arranged on the telescopic cylinder (1), and the telescopic rod (2) can extend vertically downwards; the bottom end of the telescopic rod (2) is fixedly connected with the spot welding machine (13).
7. The stainless steel foil strip welding device according to claim 6, wherein the telescopic cylinder (1) is an electric telescopic cylinder, a pneumatic telescopic cylinder or an oil cylinder; the fixed connection is realized by adopting a bolt.
8. The stainless steel foil strip welding device according to claim 1, wherein the fixing clamp (5) comprises a fixing seat (18) and a pressing plate (20), a rotating shaft (19) is arranged between the fixing seat (18) and the pressing plate (20), and the rotating shaft (19) can enable the pressing plate (20) to freely rotate on the fixing seat (18); the end part of the pressure plate (20) is provided with a clamping tongue (21); the fixed seat (18) is arranged on the upper surface of the operating platform (14), and a clamping plate (22) is arranged at a position corresponding to the position where the fixed seat (18) is arranged; a clamping hole (23) is formed in the clamping plate (22), and the clamping hole (23) can be matched and clamped with the clamping tongue (21); the clamping plate (22) is an elastic clamping plate.
9. The stainless steel foil strip welding device according to claim 8, wherein a rubber cushion layer (17) is arranged on the lower surface of the pressure plate (20).
10. A method for welding stainless steel foil strips, characterized in that the welding is carried out by using the stainless steel foil strip welding device according to any one of claims 1 to 9, and the method comprises the following steps:
s1: placing two pieces of stainless steel foil strips to be welded and connected in a welding area (16) so that the two pieces of stainless steel foil strips are overlapped with each other to form a welding area, and fixing the stainless steel foil strips by using a fixing clamp (15);
s2: the moving position of the spot welding machine (13) is adjusted by the moving assembly, so that after the spot welding machine (13) moves to the direction capable of keeping fixed, the spot welding machine (13) is operated to weld in a welding area, and then the stainless steel foil strip can be stably welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537518.5A CN114131166A (en) | 2021-12-15 | 2021-12-15 | Welding method and welding equipment for stainless steel foil strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537518.5A CN114131166A (en) | 2021-12-15 | 2021-12-15 | Welding method and welding equipment for stainless steel foil strip |
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| CN114131166A true CN114131166A (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111537518.5A Pending CN114131166A (en) | 2021-12-15 | 2021-12-15 | Welding method and welding equipment for stainless steel foil strip |
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