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著者在进行消除低氢型焊条毒性的实验研究中发现减少焊药中钾含量,可使焊烟中粉尘的全部粒子易于扑集在防尘口罩的滤料上。而用锂可以减少焊烟中的总硷度,所以研究了焊烟中产生的锂化合物对机体是否具有毒性的问题。 用豚鼠分组吸入各种焊条(见表1)所产生的焊烟持续60分钟。粉尘浓度为450毫克/立方米。 实验结果为:
The author in the experimental study to eliminate the toxicity of low-hydrogen electrode was found to reduce the potassium content of welding flux, so that all the particles of the fume in the smoke smoke easily trapped in the dust mask on the filter. The use of lithium can reduce the total alkalinity of welding fumes, so study the smoke generated lithium compounds on the body whether the toxicity of the problem. Inhalation of various welding electrodes (see Table 1) by group of guinea pigs resulted in welding fumes lasting 60 minutes. Dust concentration of 450 mg / cubic meter. The experimental results are as follows: