CN117443962B - Device and method for eliminating bending bulge of copper-aluminum composite bar - Google Patents
Device and method for eliminating bending bulge of copper-aluminum composite bar Download PDFInfo
- Publication number
- CN117443962B CN117443962B CN202311459370.7A CN202311459370A CN117443962B CN 117443962 B CN117443962 B CN 117443962B CN 202311459370 A CN202311459370 A CN 202311459370A CN 117443962 B CN117443962 B CN 117443962B
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- positioning
- block
- copper
- bulge
- hot pressing
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- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 238000005452 bending Methods 0.000 title claims abstract description 39
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims description 14
- 238000007731 hot pressing Methods 0.000 claims abstract description 41
- 238000007664 blowing Methods 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- -1 copper aluminium compound Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a copper-aluminum composite bar bending bulge eliminating device which comprises an operation table, wherein a support body is fixedly connected to the operation table, a mounting plate is mounted on the support body, a first air cylinder is fixedly mounted above the mounting plate, a first air cylinder piston rod penetrates through the mounting plate to be connected with a hot pressing head, a rotating shaft part is further arranged between the hot pressing head and the first air cylinder piston rod, and a multi-station bulge eliminating mechanism matched with the hot pressing head is further arranged on the operation table. The invention adopts a multi-positioning integrated mode, can be adjusted left and right and can move back and forth, so that the multi-product sharing of a jig can be realized during working, the bending part of the copper-aluminum composite row is further bent and shaped, and meanwhile, the bulge of the insulating coating at the bending part is pressurized and heated to be eliminated, thereby achieving the effects of easy personnel operation and improved efficiency.
Description
Technical Field
The invention relates to the field of copper-aluminum composite bar processing and forming, in particular to a copper-aluminum composite bar bending bulge eliminating device and method.
Background
The copper-aluminum composite bar is a multi-layer composite structure connection conductive bar, has the characteristics of repeatable electrical performance, composite resistance, interference resistance, good reliability, space saving, simple and quick assembly and the like, is widely applied to power conversion modules in the aspects of electric power and hybrid traction, electric traction equipment, cellular communication base stations, telephone switching systems, large-scale network equipment, large-medium-sized computers, electric power switching systems, welding systems, ship power supply, military equipment systems, energy systems, electric equipment and the like, is one of key components of the power modules, provides necessary guarantee for development of conversion technology, and represents the direction of connecting new technologies of power devices. The forming process of the copper-aluminum composite bar generally requires the process steps of cutting, drilling, bending and the like. In the prior art, when the composite bar is bent and formed, after the copper-aluminum composite bar is bent by a forming machine, the bending angle is not in place, and the bulge appears at the bending position, so that the forming size cannot be controlled, the size deviation is often easily caused, the requirement of the forming size is difficult to meet, and even the insulating structure is damaged.
Disclosure of Invention
Accordingly, an object of the present invention is to provide a device and a method for eliminating a bulge of a copper-aluminum composite bar, which further bend and shape a bending portion of the copper-aluminum composite bar, and eliminate a bulge of an insulating coating at the bending portion by heating under pressure.
The aim of the invention is achieved by the following technical scheme:
firstly, provide a copper aluminium compound row swell eliminating device that bends, including the operation panel, fixedly connected with supporter on the operation panel, the mounting panel is installed to the supporter, the top fixed mounting of mounting panel has first cylinder, and first cylinder piston rod passes the mounting panel is connected with the hot pressing head, the hot pressing head with still be provided with the pivot portion between the first cylinder piston rod, still be provided with on the operation panel with hot pressing head complex multistation swell eliminating mechanism.
Further, the rotating shaft part comprises a sleeve installed below the mounting plate, a connecting shaft arranged in the sleeve and connected with the first cylinder piston rod, a rotating shaft arranged in the sleeve and connected with the connecting shaft, a connecting block arranged below the rotating shaft, and a mounting block installed below the connecting block, and the hot pressing head is installed in the mounting block.
Further, the sleeve and the connecting shaft are provided with corresponding first positioning holes, and first locking pieces are arranged in the first positioning holes; the sleeve is also provided with a first positioning block, one side of the connecting shaft is provided with a flat shaft, and the first positioning block compresses the flat shaft; the mounting block and the hot pressing head are respectively provided with a corresponding second positioning hole, and a second locking piece is arranged in each second positioning hole.
Further, the multi-station bulge eliminating mechanism comprises a second air cylinder, a second positioning block, a positioning seat and a linear guide rail, wherein the second air cylinder and the linear guide rail are arranged at the front end and the rear end of the operating platform, the second positioning block is arranged at one end, close to the second air cylinder, of the linear guide rail, the positioning seat is slidably arranged on the linear guide rail, and the second air cylinder penetrates through the supporting body to be connected with the positioning seat.
Further, the positioning seat comprises a positioning workbench and a sliding block fixedly installed below the positioning workbench and in sliding connection with the linear guide rail.
Further, the positioning workbench comprises a vertical positioning block and a horizontal positioning block connected with the vertical positioning block; the vertical positioning block is provided with a front positioning groove, the horizontal positioning block is provided with a left positioning groove and a right positioning groove, and the vertical positioning block is provided with a counter bore.
Further, the positioning workbench is a V-shaped adjustable angle device.
Further, the support body includes two support frames of horizontal interval arrangement, the both sides that carry out hot pressing station on the operation panel are provided with the air heater respectively for to the copper aluminium composite bar product of hot pressing design heat by blowing.
Secondly, a method for eliminating bending bulges of the copper-aluminum composite bar is provided, wherein the copper-aluminum composite bar bending bulge eliminating device is used, and the specific operation process is as follows:
The bending bulge of the copper-aluminum composite row is arranged at a corresponding groove position of the positioning workbench, a second cylinder is started, a piston rod of the second cylinder contracts, and the positioning seat is driven to move to the position below the hot pressing head;
The angle of the hot pressing head is adjusted through the rotating shaft part, the first cylinder is started, the hot pressing head is pressed down, the hot air blower is started, and the bending bulge eliminating work is completed.
The beneficial effects of the invention are as follows:
The invention adopts a multi-positioning integrated mode, can be adjusted left and right and can move back and forth, so that the multi-product sharing of a jig can be realized during working, the bending part of the copper-aluminum composite bar is further bent and shaped, and meanwhile, the bulge of the insulating coating at the bending part is eliminated by pressurizing and heating.
According to the invention, a plurality of positioning grooves are integrated on one jig, so that bending bulges in the left-right direction, the front-back direction and the vertical direction in the process of eliminating bending bulges of the copper-aluminum composite row can be positioned respectively; specifically, the copper-aluminum composite bar is placed on the positioning groove for positioning, and the copper-aluminum composite bar is reprocessed through hot-pressing head equipment after positioning, so that the effects of easy personnel operation and efficiency improvement are achieved.
Drawings
FIG. 1 is a schematic diagram of a device for eliminating bending bulges of a copper-aluminum composite bar in embodiment 1 of the present application;
FIG. 2 is a schematic view showing the structure of a rotary shaft part in embodiment 1 of the present application;
FIG. 3 is a schematic view of another view angle structure of the copper-aluminum composite row bending bulge eliminating device in embodiment 1 of the present application;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is a schematic view of the positioning table according to embodiment 1 of the present application;
FIG. 6 is a schematic view of the positioning table according to embodiment 2 of the present application;
Reference numerals: 1-operation platform, 2-supporting body, 3-mounting plate, 4-first cylinder, 5-pivot portion, 51-sleeve, 511-first locating hole, 512-first locating block, 52-connecting shaft, 53-rotation shaft, 54-connecting block, 55-mounting block, 56-second retaining member, 6-hot press head, 7-second cylinder, 8-air heater, 9-locating seat, 91-location workstation, 92-slider, 911-vertical locating block, 912-horizontal locating block, 913-front locating slot, 914-left and right locating slot, 915-counter bore, 10-linear guide rail.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific azimuth, and are constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected via an intermediary, or connected by communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1:
As shown in fig. 1, the invention provides a copper-aluminum composite bar bending bulge eliminating device, which comprises an operation table 1, wherein a support body 2 is fixedly connected to the operation table 1, a mounting plate 3 is mounted on the support body 2, a first air cylinder 4 is fixedly mounted above the mounting plate 3, a piston rod of the first air cylinder 4 penetrates through the mounting plate 3 to be connected with a hot pressing head 6, the hot pressing head 6 is of a V shape, a rotating shaft part 5 is further arranged between the hot pressing head 6 and the piston rod of the first air cylinder 4, and a multi-station bulge eliminating mechanism matched with the hot pressing head 6 is further arranged on the operation table 1. The supporting body 2 comprises two supporting frames which are horizontally arranged at intervals, and hot air blowers 8 are respectively arranged on two sides of the hot pressing station on the operating table 1 and used for carrying out blowing heating on the hot pressing and shaping copper-aluminum composite bar products.
As shown in fig. 2 to 4, the rotating shaft portion 5 of the present invention includes a sleeve 51 mounted below the mounting plate 3, a connecting shaft 52 provided in the sleeve 51 and connected to the piston rod of the first cylinder 4, a rotating shaft 53 provided in the sleeve 51 and connected to the connecting shaft 52, a connecting block 54 provided below the rotating shaft 53, and a mounting block 55 mounted below the connecting block 54, and the thermal head 6 is mounted in the mounting block 55. The rotation shaft 53 is fixedly connected with the connection block 54 and the connection block 54 is fixedly connected with the mounting block 55 through screws.
Wherein, be provided with first locating block 512 on sleeve 51, one side of connecting axle 52 is equipped with the flat axle, and first locating block 512 compresses tightly the flat axle, prevents connecting axle 52 from carrying out axial motion in sleeve 51.
The sleeve 51 and the connecting shaft 52 are respectively provided with a corresponding first positioning hole 511, a first locking piece is arranged in the first positioning hole 511, the rotating shaft 53 is rotated clockwise or anticlockwise by screwing out the first locking piece, the direction of the hot press head 6 is adjusted, and then the rotating shaft 53 is fixed on the connecting shaft 52 by screwing in the first locking piece.
The installation block 55 and the hot pressing head 6 are respectively provided with a corresponding second positioning hole, a second locking piece 56 is arranged in each second positioning hole, the hot pressing head 6 is fixed on the installation block 55 by screwing in the second locking piece 56, and the front-back angle of the hot pressing head 6 can be adjusted by screwing out the first locking piece.
As shown in fig. 1 to 5, the multi-station bulge eliminating mechanism comprises a second cylinder 7, a second positioning block, a positioning seat 9 and a linear guide rail 10, wherein the second cylinder 7 and the linear guide rail 10 are arranged at the front end and the rear end of the operating platform 1, the second positioning block is arranged at one end of the linear guide rail 10 close to the second cylinder 7, the positioning seat 9 is slidably arranged on the linear guide rail 10, and the second cylinder 7 penetrates through a supporting body to be connected with the positioning seat 9. (in the figure, the second positioning block is not marked because it is thermally shielded)
The positioning seat 9 includes a positioning table 91, and a slider 92 fixedly mounted below the positioning table 91 by a screw and slidably connected to the linear guide rail 10.
As shown in fig. 5, the positioning table 91 includes a vertical positioning block 911 and a horizontal positioning block 912 connected to the vertical positioning block 911; the vertical positioning block 911 is provided with a front positioning groove 913, the horizontal positioning block 912 is provided with a left positioning groove 914 and a right positioning groove 914, the vertical positioning block 911 is provided with a countersunk hole 915, and the countersunk hole 915 is internally used for installing a screw. The adjustment angle of the hot-pressing head 6 corresponds to the positions of the front positioning groove 913 and the left and right positioning grooves 914 on the positioning workbench 91 to form a hot-pressing station, the bending part of the copper-aluminum composite bar is further bent and shaped, and meanwhile, the bulge of the insulating coating at the bending part is pressurized and heated to be eliminated.
Example 2:
The invention provides a copper-aluminum composite row bending bulge eliminating device, which comprises an operation table 1, wherein a support body 2 is fixedly connected to the operation table 1, a mounting plate 3 is mounted on the support body 2, a first air cylinder 4 is fixedly mounted above the mounting plate 3, a piston rod of the first air cylinder 4 penetrates through the mounting plate 3 to be connected with a hot pressing head 6, a rotating shaft part 5 is further arranged between the hot pressing head 6 and the piston rod of the first air cylinder 4, and a multi-station bulge eliminating mechanism matched with the hot pressing head 6 is further arranged on the operation table 1. The supporting body 2 comprises two supporting frames which are horizontally arranged at intervals, and hot air blowers 8 are respectively arranged on two sides of the hot pressing station on the operating table 1 and used for carrying out blowing heating on the hot pressing and shaping copper-aluminum composite bar products.
Embodiment 2 is different from the rotating shaft portion 5 of the same structure as that of the embodiment in that the multi-station bulge eliminating mechanism comprises a second cylinder 7, a second positioning block, a positioning seat 9 and a linear guide rail 10, wherein the second cylinder 7 and the linear guide rail 10 are arranged at the front end and the rear end of the operating platform 1, the positioning block is arranged at one end of the linear guide rail 10 close to the second cylinder 7, the positioning seat 9 is slidably arranged on the linear guide rail 10, and the second cylinder 7 penetrates through the supporting body to be connected with the positioning seat 9.
The positioning seat 9 includes a positioning table 91, and a slider 92 fixedly installed below the positioning table 91 and slidably connected to the linear guide rail 10. The positioning table 91 is a V-shaped adjustable angle gauge.
Specifically, in embodiment 2, the positioning seat 9 includes a V-shaped adjustable angle device, and a slider 92 fixedly installed below the V-shaped adjustable angle device and slidably connected to the linear guide rail 10.
The invention also provides a method for eliminating the bending bulge of the copper-aluminum composite bar, which uses the copper-aluminum composite bar bending bulge eliminating device to eliminate the bending bulge of the copper-aluminum composite bar, and comprises the following specific operation processes:
The bending bulge of the copper-aluminum composite row is arranged at a corresponding groove position of the positioning workbench, a second cylinder is started, a piston rod of the second cylinder contracts, and the positioning seat is driven to move to the position below the hot pressing head;
The angle of the hot pressing head is adjusted through the rotating shaft part, the first cylinder is started, the hot pressing head is pressed down, the hot air blower is started, and the bending bulge eliminating work is completed.
The invention adopts a multi-positioning integrated mode, can be adjusted left and right and can move back and forth, so that the multi-product sharing of one jig can be realized during working, and the efficiency is improved.
According to the invention, a plurality of positioning grooves are integrated on one jig, so that bending bulges in the left-right direction, the front-back direction and the vertical direction in the process of eliminating bending bulges of the copper-aluminum composite row can be positioned respectively; specifically, the copper-aluminum composite bar is placed on the positioning groove for positioning, and the copper-aluminum composite bar is reprocessed through hot-pressing head equipment after positioning, so that the effects of easy personnel operation and efficiency improvement are achieved.
The foregoing description of the preferred embodiments of the invention has been presented only in a specific and detailed description, and is not to be construed as limiting the scope of the invention. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the spirit of the invention, and the invention is intended to encompass such modifications and improvements.
Claims (5)
1. The utility model provides a copper aluminium complex row swell eliminating device that bends which characterized in that: the hot press device comprises an operation table, wherein a support body is fixedly connected onto the operation table, a mounting plate is mounted on the support body, a first air cylinder is fixedly mounted above the mounting plate, a first air cylinder piston rod penetrates through the mounting plate to be connected with a hot press head, a rotating shaft part is further arranged between the hot press head and the first air cylinder piston rod, and a multi-station bulge eliminating mechanism matched with the hot press head is further arranged on the operation table;
The rotating shaft part comprises a sleeve, a connecting shaft, a rotating shaft, a connecting block and a mounting block, wherein the sleeve is mounted below the mounting plate, the connecting shaft is arranged in the sleeve and connected with the first cylinder piston rod, the rotating shaft is arranged in the sleeve and connected with the connecting shaft, the connecting block is arranged below the rotating shaft, the mounting block is mounted below the connecting block, and the hot pressing head is mounted in the mounting block;
The multi-station bulge eliminating mechanism comprises a second air cylinder, a second positioning block, a positioning seat and a linear guide rail, wherein the second air cylinder and the linear guide rail are arranged at the front end and the rear end of the operating platform, the second positioning block is arranged at one end, close to the second air cylinder, of the linear guide rail, the positioning seat is arranged on the linear guide rail in a sliding manner, and the second air cylinder penetrates through the supporting body to be connected with the positioning seat;
The positioning seat comprises a positioning workbench and a sliding block fixedly arranged below the positioning workbench and in sliding connection with the linear guide rail;
The positioning workbench comprises a vertical positioning block and a horizontal positioning block connected with the vertical positioning block; the vertical positioning block is provided with a front positioning groove, the horizontal positioning block is provided with a left positioning groove and a right positioning groove, and the vertical positioning block is provided with a counter bore; or the positioning workbench is a V-shaped adjustable angle device.
2. The copper-aluminum composite row bending bulge eliminating device according to claim 1, wherein: the sleeve and the connecting shaft are provided with corresponding first positioning holes, and first locking pieces are arranged in the first positioning holes; the sleeve is further provided with a first positioning block, one side of the connecting shaft is provided with a flat shaft, and the first positioning block compresses the flat shaft.
3. The copper-aluminum composite row bending bulge eliminating device according to claim 1, wherein: the mounting block and the hot pressing head are respectively provided with a corresponding second positioning hole, and a second locking piece is arranged in each second positioning hole.
4. The copper-aluminum composite row bending bulge eliminating device according to claim 1, wherein: the support body includes two support frames of horizontal interval arrangement, the both sides that carry out hot pressing station on the operation panel are provided with the air heater respectively for to the copper aluminium composite bar product of hot pressing design heat by blowing.
5. A method for eliminating bending bulges of copper-aluminum composite bars is characterized by comprising the following steps: the copper-aluminum composite bar bending bulge eliminating device according to any one of claims 1 to 4 is used, and the specific operation process is as follows:
The bending bulge of the copper-aluminum composite row is arranged at a corresponding groove position of the positioning workbench, a second cylinder is started, a piston rod of the second cylinder contracts, and the positioning seat is driven to move to the position below the hot pressing head;
The angle of the hot pressing head is adjusted through the rotating shaft part, the first cylinder is started, the hot pressing head is pressed down, the hot air blower is started, and the bending bulge eliminating work is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311459370.7A CN117443962B (en) | 2023-11-03 | 2023-11-03 | Device and method for eliminating bending bulge of copper-aluminum composite bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311459370.7A CN117443962B (en) | 2023-11-03 | 2023-11-03 | Device and method for eliminating bending bulge of copper-aluminum composite bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117443962A CN117443962A (en) | 2024-01-26 |
| CN117443962B true CN117443962B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311459370.7A Active CN117443962B (en) | 2023-11-03 | 2023-11-03 | Device and method for eliminating bending bulge of copper-aluminum composite bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117443962B (en) |
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|---|---|
| CN117443962A (en) | 2024-01-26 |
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