我厂制造的GC-L-60型铁路罐车,是运输浓硝酸,液体冰醋酸的专用罐车。罐车载重60t,有效容积40m~3,罐体直径23m,长10.4m。该车罐体全部采用耐腐蚀性能良好的工业纯铝L2制造。铝具有高的导热性和热容量,因此,罐体焊缝采用热量比较集中的熔化极氩弧焊焊接,其具体焊接工艺介绍如下: 焊前准备 The GC-L-60 railway tanker made by our factory is a special tanker for transporting concentrated nitric acid and liquid glacial acetic acid. Tanker load 60t, effective volume 40m ~ 3, tank diameter 23m, length 10.4m. The car tank body all use good corrosion resistance of industrial pure aluminum L2 manufacturing. Aluminum has high thermal conductivity and heat capacity, therefore, the tank weld using a relatively concentrated heat flux welding, the specific welding process is as follows: Preparation of welding