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Method and device for welding copper components

A welding method and technology of a welding device, which are applied in the field of copper component welding methods and devices, can solve the problems of inability to meet the requirements of high-dimensional precision welded components, the inability to effectively control the weld structure and matrix consumption, etc., and achieve easy curing welding parameters, Good universality, high-precision solderless soldering effect

Active Publication Date: 2022-04-29
GUIZHOU GUDA CABLE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the common solid-state welding method cannot effectively control the weld structure and matrix consumption, which makes the existing welding technology unable to meet the requirements of high-dimensional precision welded components

Method used

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  • Method and device for welding copper components
  • Method and device for welding copper components
  • Method and device for welding copper components

Examples

Experimental program
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Effect test

Embodiment 1

[0032] This embodiment provides a copper component welding method, such as figure 1 shown, including:

[0033] Step 101: Adjust the copper component to be welded so that the two welding end surfaces of the copper component to be welded are in contact, and connect the two welding end surfaces of the copper component to be welded to a power source respectively, so that the two welding end surfaces of the copper component to be welded Produce contact blasting between, obtain the smooth welding end face of described copper component to be welded;

[0034] Step 102: applying a first preset pressure to the two flat welding end surfaces of the copper component to be welded to heat and soften the flat welding end surfaces;

[0035] Step 103: After applying a second preset pressure for a preset time to the flat welded end surface after heating and softening, disconnect the power supply to complete welding; the second preset pressure is greater than the first preset pressure.

[0036]...

Embodiment 2

[0059] As another embodiment of the present invention, such as Figure 5 As shown, a copper member welding device is also provided for realizing the welding method in Embodiment 1, the device comprising:

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Abstract

The invention relates to a welding method and device for copper components. Aiming at the characteristics of high electrical conductivity and low resistance of electrical copper, gasification blasting is used to clean the welding end surface by local contact, and the welding end surface is flattened. A certain stress is applied after blasting for a period of time, and the deformation of copper is utilized. Increase the contact area of ​​both ends, thereby linearly reducing the current density, using the interface resistance on the end surface for rapid heating, and the final joint surface is fully plastic deformation of the end surface to fit and extrude liquefied copper. The welding surface is at a temperature lower than the melting point of copper. At high temperature, deformation and recrystallization are used to form welds. The invention does not need solder and does not need to melt the welding zone, so the welding precision is high, no other impurity alloy elements are introduced, and there is no re-dissolved cast structure in the welded structure. The requirements for welding equipment are extremely low, which improves the efficiency of welding electrical copper components.

Description

technical field [0001] The invention relates to the technical field of electrical component welding, in particular to a copper component welding method and device. Background technique [0002] The welding of metal materials can be divided into fusion welding and solid state welding from the perspective of weld forming characteristics. Among them, fusion welding will liquefy the metal at the weld seam to form a molten pool, and complete the welding after the liquefied metal cools down. Due to the cooling of liquefied metal, this type of welding seam is cast dendrite structure, which is quite different from the matrix structure and has poor uniformity, such as argon arc welding, arc welding, acetylene flame welding, etc. Some even need to add solder, resulting in an uneven structure, especially for oxygen-free copper components that require excellent electrical conductivity. The addition of other solder will lead to an increase in resistance, resulting in heating in the weld...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K20/00B23K20/22B23K20/26
CPCB23K20/00B23K20/26B23K20/22
Inventor 梁宇肖秋雷欧梅桂徐平伟张休恩
Owner GUIZHOU GUDA CABLE CO LTD
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