论文部分内容阅读
本文通过对电焊劳动卫生学调查,提出电焊作业的主要有害因素是焊接烟尘所致电焊尘肺。焊条药皮中虽然含有结晶SiO_2,但对烟尘分析未发现结晶SiO_2。以烟尘给大白鼠作气管注入,10个月后肺组织未发现矽肺病理形态;故认为电焊尘肺并非矽肺,也不是单纯的铁末沉着。电焊烟尘中的各种物质,可导致肺组织的间质纤维化病变,形成特有的电焊尘肺。
In this paper, through the investigation of the labor hygiene of electric welding, it is proposed that the main harmful factor of electric welding operation is electric welding pneumoconiosis caused by welding fume and dust. Although the electrode coating contains crystalline SiO 2, but the analysis of dust did not find crystalline SiO_2. To smoke to rats for tracheal injection, 10 months after the lung tissue was not found in silicosis pathological form; so that welding dust pneumoconiosis is not silicosis, nor is it pure iron calm. Welding fumes in a variety of substances, can lead to lung interstitial fibrosis lesions, the formation of a unique welding pneumoconiosis.