焊接烟雾是半自动焊接时一个严重的问题。解决的办法一般是采用通风和排气,但是这只能解决一部分问题。最近,英国洛克威尔德公司采用一种抽气焊炬,从而解决了焊接烟雾问题。这种新型抽气焊炬与一般焊炬相似,但是,抽气焊炬有一个抽气室。抽气室套在喷嘴外面。焊接烟雾由壁孔进入 Welding smoke is a serious problem in semi-automatic welding. The solution is generally to use ventilation and exhaust, but this can only solve part of the problem. Recently, Rockwell, UK, used a suction torch to solve the welding smoke problem. This new type of extraction torch is similar to a typical torch but the extraction torch has a pumping chamber. Suction chamber sleeve outside the nozzle. Welding smoke enters through the hole