用铸铁焊条焊补灰口铁可以获得令人满意的效果,但是在没有铸铁焊条时,用价格便宜、容易买到的低碳钢焊条,手工电弧冷焊焊补某些铸铁零件还是可以的。用低碳钢焊条焊补灰口铁时,要制定严格的工艺措施,运用熟练的操作技能,并把工艺的着眼点放在防止裂纹以及减弱淬硬组织的产生上。 Satisfactory results can be obtained by welding gray iron with cast iron welding rod. However, in the absence of cast iron welding rod, it is still possible to replace some cast iron parts with low-cost, easily-available low-carbon steel welding rod and manual arc welding. When welding gray iron with low-carbon steel welding rod, it is necessary to formulate strict process measures, use skilled operation skills, and focus on the process to prevent cracks and weaken the production of hardened tissues.