The results show that the welding of TC4 can be realized by capacitor discharge welding. The joint microstructure consists of nugget zone and semi-melt zone.
结果表明：储能焊能够实现TC4钛合金薄板的快速凝固焊接，焊接接头由熔核和熔核向母材过渡的熔合区（线）组成。
Before installation on the suction and discharge line to clean, remove rust and dirt, especially welding pipe welding slag must be thoroughly cleared, to avoid killed after entering the pump.
安装前对吸入、排出管路要清理干净，去掉铁锈等脏物，特别是焊接管路的焊渣必须彻底清除，以免进入泵后咬死。
Results show that the arc was burning between the two wires in twin-wire indirect arc welding, and the arc was still a type of gas discharge in nature.
结果表明，双丝间接电弧气体保护焊在两丝端部形成电弧，其电弧本质仍然是气体放电的一种表现形式。
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