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触头元件由紫铜(铬铜)与(CuW70)组成,在开关设备中起着关键作用,承受高温、高压、耐磨,并有一定的强度要求(冲击),其焊接质量的好坏直接关系到开关产品质量的优劣。笔者单位对触头焊接多采用火焰钎焊,效率低,合格率低,严重地制约着生产。为了解决这个难题,笔者通过大量工艺试验和详细论证认为,高速局部加热,氧化少、硬度降低小,效率高的中频感应加热是触头焊接的最有效的方法。
The contact element consists of copper (CuW70) and (CuW70), plays a key role in the switchgear, withstands high temperature, high pressure, wear, and has some strength requirements (impact), the welding quality is directly related The quality of the switch to the pros and cons. The author of the unit welding more use of flame brazing, low efficiency, low pass rate, seriously restricting the production. In order to solve this problem, the author through a large number of process tests and detailed demonstration that the high-speed local heating, less oxidation, lower hardness, high efficiency induction heating is the most effective contact welding method.