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在生产上经常遇到球墨铸铁和碳钢间的焊接问题,由于球墨铸铁和碳钢材质上的根本区别,焊接存在一定困难。采用加填充材料的碳弧焊接方法,配合必要的工艺措施效果较好。球铁-碳钢焊接的成败,主要取决于焊接方法、焊接填充材料以及焊接时的热输入量。其原理是:预先把定量的填料放进焊接接头,采用一般的弧焊机,普通的碳精或石墨棒作电极,引燃电弧作热源,使金属填料吸收电弧热量熔化并与母材良好结合成为接头。
In production often encounter ductile iron and carbon steel welding problems, due to the fundamental differences between ductile iron and carbon steel, welding there are some difficulties. Fill the material with carbon arc welding method, with the necessary technical measures better. Ductile-carbon steel welding success or failure, depending on the welding method, welding filler material and welding heat input. The principle is: pre-quantitative filler into the welded joints, using a general arc welding machine, ordinary carbon or graphite rods as electrodes, ignition arc as a heat source, the metal filler to absorb the heat of the arc melting and good combination with the base metal Become a connector.