【摘要】 针对应用于等离子弧焊接方法焊接厚度０．５～２．０ｍｍ不锈钢、紫铜及钛合金等材料存在的主要问题，研制了一种中电流等离子弧焊炬，工作电流为３０～１００Ａ。工艺试验及使用结果表明，该焊炬具有焊接质量可靠，工艺性能优良，使用寿命长及价格低廉等主要优点。更多还原

【Abstract】 In order to meet the needs of welding stainless steel,copper,and titanium alloy of thickenessfrom 0.5mm to 2.0mm,a rational in structure and advanced plasma welding torch for medium current(30～10 0A)is developed.Technological experiment and operatianal test show that the torch has mainadvantages,i.g.higher qualities of Weld,better operational performance, longer service life and lower costof production.更多还原