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焊接作业中产生大量的由气体和固体粒子相混合的气溶胶。文献介绍目前国内手弧焊作业,焊烟中的有害成分,主要与焊条的种类有关。但不论哪种焊条,都可产生各种不同和相同的有害烟尘。因此焊接作业的排烟问题,必须得到解决。对于固定台位的手弧焊作业,排烟方法比较容易。移动式的电焊排烟净化装置,近几年也相继问世,而且都取得了满意的效果。
A large number of aerosols mixed with gas and solid particles are generated during the welding operation. The literature describes the current domestic manual arc welding operations, harmful components in welding smoke, mainly related to the type of electrode. However, regardless of the kind of electrode, all kinds of different and same harmful smoke can be produced. Therefore, the problem of exhaust fumes from welding operations must be solved. For manual arc welding operations at fixed stations, the smoke extraction method is relatively easy. Mobile welding smoke purifying devices have also come out in recent years, and have achieved satisfactory results.