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所研制的内孔等离子弧焊枪,可以得到与焊枪轴线成任意角度的等离子弧。它为设计制造小型等离子弧焊枪提供了一条新的途径。作者(?)使用该焊枪对内径大于12mm 的管子,成功地进行了内孔对接焊和内孔角接焊.焊接接头质量良好.内孔等离子弧焊接具有钨极寿命长、氩气耗量少等优点,是内孔焊的一种更经济的新方法。
Developed by the hole plasma arc torch, the torch can be obtained at any angle to the plasma arc. It provides a new way to design and manufacture miniature plasma arc torch. The author (?) Succeeded in butt welds and bore fillet welds for tubes with an inside diameter greater than 12 mm using this torch. Welded joints were of good quality. In-hole plasma arc welding had the advantages of long tungsten lifetime and low argon gas consumption And other advantages, is a more economical way of welding new hole.