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在汽车车箱、集装箱、制管以及轧板等工业部门的辊压或连轧自动线上,有一道并卷接带工序,用以把前一钢带的尾部和新钢带卷的头部焊在一起,保、正辊压或轧制过程的连续进行。过去,国内多数厂家采用手工电弧焊或CO_2气体保护焊方法进行薄钢板的并卷接带。这两种方法有较大的飞溅和余高,对成型辊或轧辊不利。辊压或轧制后,含有焊缝的一段型材要被切除报废,浪费较大。
There is a roll-in-and-roll process on the rolling or tandem automatic lines in the automotive industry, such as automobile bodies, containers, pipes and plates, for the welding of the tail of a previous steel strip and the head of a new steel coil Together, Paul, are rolling or continuous rolling process. In the past, the majority of domestic manufacturers use manual arc welding or CO_2 gas shielded welding method for the thin strip and take over the belt. Both methods have greater spatter and residual height, which is detrimental to the forming roll or roll. After rolling or rolling, a profile containing the weld is to be scrapped and scrapped, resulting in greater waste.