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本实验采用国内常用的低氢型碱性焊条结507和钛钙型酸性焊条结422两种焊条的烟尘进行静式吸入染尘,烟尘浓度分别为50mg/m~3和200mg/m~3。实验结果表明两种焊条都能引起全肺胶原蛋白含量的增高。病理观察在染尘后3个月尘细胞灶内可见到少量网织纤维,染尘6个月(200mg/m~3浓度组)和12个月(50mg/m~3浓度组)在尘细胞灶周围出现少量纤细的胶原纤维。以上结果以结507-200mg/m~3浓度组较结422组明显。各脏器组织元素含量分析表明,肺内铁、锰的含量明显高于正常对照组。
In this experiment, the commonly used domestic low hydrogen alkaline electrode junction 507 and titanium calcium acid electrode junction 422 two types of electrode soot dust inhalation, dust concentration were 50mg / m ~ 3 and 200mg / m ~ 3. The experimental results show that both electrodes can cause increased lung collagen content. Pathological observations A few nets were found in the dust cells within 3 months after being stained. Dye dust was exposed to dust cells for 6 months (200 mg / m ~ 3) and 12 months (50 mg / m ~ 3) A small amount of slender collagen fibers appear around the stove. The above results to knot 507-200mg / m ~ 3 concentration group than knot 422 obvious. Analysis of the content of tissue elements in various organs showed that the contents of iron and manganese in the lung were significantly higher than those in the normal control group.