氩弧焊属熔焊气体保护,是工业上实用的焊接方法,推广使用的时间不长,分熔化极氩弧焊和非熔化极(钨极)壶弧焊二类,在工业生产中多用于优质合金钢、有色金属及压力管道的焊接。如同大多数焊接方法一样,在施焊过程中产生多种职工性有害因素。 1、臭氧:臭氧是氩弧焊施焊过程中产生的主要有害气体,经高温光化学反应而产生。波长小于290毫微米的短波紫外线,使分子分裂成氧原子。在焊接高温下,氧原子与氧分子互相撞击生成臭氧。据研究,臭氧发生量受多种因素影响,焊接电流升高,电弧长度增加,臭氧发生量增大;被焊材料不同,臭氧发生量不同焊接发生尘量较少时,臭氧发生量增大;焊接发生量较多时,氩气流量加大,臭氧浓度有所减少;熔化极自动 TIG welding is a welding gas protection, industrial practical welding methods, the promotion of the use of time is not long, sub-melting arc welding and non-melting pole (Tungsten) arc welding two types, used in industrial production High-quality alloy steel, non-ferrous metals and pressure pipe welding. As with most welding methods, a number of worker-related hazards occur during the welding process. 1, ozone: ozone is the main harmful gas produced in the process of welding TIG welding, generated by high temperature photochemical reaction. Shortwave UV wavelengths less than 290 nm split the molecule into oxygen atoms. In the welding of high temperature, oxygen atoms and oxygen molecules collide with each other to generate ozone. According to the research, the amount of ozone is affected by many factors, the welding current increases, the arc length increases, the amount of ozone increases; different welding materials, different amount of ozone generated welding less dust, the amount of ozone increased; More welding occurs when the argon flow rate increases, the ozone concentration has decreased; melting electrode automatic