我厂和联邦德国德马克合作为宝钢生产的140管轧机,有一零件为脱节滑轨,需要在A3钢的基面上堆焊厚度为6mm的高强度耐磨铜合金。按联邦德国图纸规定:用AMPCO(美国铝青铜焊条)焊条进行手工堆焊。我们首先分析了在钢上堆焊铝青铜的困难,其次还对用AMPCO焊条堆焊的堆焊层进行了化学成分和机械性能分析,然后在国内选择了类似其性能的几种铝青铜焊丝,进行氩弧堆焊工艺试验,并成功地用于生产。不但提高了生产效率,而且焊接质量完全符合图纸技术要求。现分述如下。 I plant and the Federal Republic of Germany Demark co-production for Baosteel 140 pipe mill, a part of the slide out of line, you need to surfacing in the A3 steel base thickness of 6mm high strength wear-resistant copper alloy. According to the Federal Republic of Germany drawings: manual welding with AMPCO (American aluminum bronze electrode) welding. We first analyzed the difficulty of surfacing aluminum bronze on steel, followed by chemical composition and mechanical properties analysis of surfacing layer with AMPCO electrode surfacing, and then chose several kinds of aluminum bronze wire similar to its performance in China, TIG welding process test, and successfully used in production. Not only improve the production efficiency, and welding quality in full compliance with drawing technical requirements. Now is as follows.