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铁路工业系统中,修理蒸汽机车时,机车锅炉烟管因割拆使两端损坏,必须接长修复,每台机车,按型号不同,其锅炉有三十、三十六、五十根大烟管(直径133毫米),一百多根小烟管不等,除极少数腐蚀严重,需整根更换新管外,绝大部分要接长修复,其焊接工作量较大,过去我厂一直采用氧——乙炔焊接,效率低,劳动强度大,成为生产的薄弱环节。其他兄弟工厂一般采用手工电弧焊,也有一些工厂在试用二氧化碳气体保护半自动焊,虽有改进仍未能满足生产上的要求。我厂去年四月份开始设计、制作这台二氧
In the railway industrial system, when repairing a steam locomotive, the locomotive boiler pipe is damaged due to the cutting and cutting, and must be repaired. Each locomotive has 30, 36 and 50 big smoke according to different models Tube (diameter 133 mm), more than 100 small smoke pipes ranging, except for a very small number of serious corrosion, the need to replace the entire root of the new tube, the vast majority of access to the long repair, the welding workload, in the past I plant has been The use of oxygen - acetylene welding, low efficiency, labor-intensive, become the production of the weak links. Other brother factories generally use manual arc welding, there are some factories in the trial of semi-automatic protection of carbon dioxide gas welding, although improvements still failed to meet the production requirements. Our factory started to design and manufacture this dioxin in April last year