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武钢硅钢片厂由日本新日铁引进的酸洗机组的头部设备中,用以焊接各种牌号硅钢片的焊机,是采用惰性气体保护焊(MIG)。试生产期间发现该焊饥在焊接一般牌号取向硅钢和高牌号无取向硅钢时,常发生焊缝(尤其在机组尾部)断裂现象,使带钢不能顺利通过,影响机组的正常生产。问题发生后,经中日双方技术人员根据现场情况分析研究,认为主要是焊缝质量不好,焊机在焊接取向硅钢时,质量没有过关,特别是焊接含硅量较
WISCO silicon steel sheet factory by Japan’s Nippon Steel imported pickling unit head equipment, welding of various grades of silicon steel welding machine is the use of inert gas shielded welding (MIG). During the trial production, it was found that when welding the normal grade oriented silicon steel and the high grade non-oriented silicon steel, the fracture of the weld (especially at the tail of the unit) often occurs so that the strip can not pass smoothly and the normal production of the unit is affected. After the occurrence of the problem, technicians from both China and Japan analyzed and studied the situation according to the site and concluded that the quality of the weld was not good. The quality of the welding machine did not pass the welding when the machine was welding the oriented silicon steel. In particular,