铸铁是广泛应用的一种工程材料,用作机架、支架、机床床身尤为普遍。在使用中,由于磨损或意外事故,会使机件损坏,常采取更换新件或修复旧件的方法。在某些情况下,修复旧件具有停工周期短、节约修理费用等优点,因而具有广泛的应用价值。在焊补铸铁的常规方法中,常采用铸铁焊条(例如氧化型钢芯铸铁焊条铸100;高钒铸铁焊条铸116、铸117;强石墨化型焊条 Cast iron is a widely used engineering material used as a frame, stand, machine bed is particularly common. In use, due to wear or accident, damage to the mechanical parts, often take the replacement of new or repair the old method. In some cases, the repair of old parts has the advantages of short down-time, saving repair costs, which has a wide range of applications. In the conventional method of welding cast iron, cast iron welding rod (such as oxidized steel core cast iron welding rod 100; high vanadium cast iron welding rod 116, cast 117; strong graphitized welding rod