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紫铜具有高的导热性和大的热容量,焊接需用较大的热源。为了不使热影响区增大,以减小铜的氧化作用,手工焊时不加予热,而采用大电流一道堆焊双面成形。为解决厚度为6、8、10、12和16毫米、焊缝长度为100、200、300及500毫米的紫铜焊接,我们曾做如下试验及应用: 对接头的要求接头强度σb≥18kg/mm~2,电阻值不得大于母材的电阻值,并要求
Copper has high thermal conductivity and large heat capacity, welding requires a larger heat source. In order not to increase the heat-affected zone, in order to reduce the oxidation of copper, manual welding without heat, and the use of high-current surfacing forming a double-sided. In order to solve the welding of copper with thickness of 6, 8, 10, 12 and 16 mm and weld length of 100, 200, 300 and 500 mm, we have done the following tests and applications: Requirements for Joints Joint strength σb≥18kg / mm ~ 2, the resistance value shall not be greater than the resistance of the base metal, and requirements