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铸铁件缺陷的焊补具有较大的经济效益。目前常用的铸铁冷焊焊条主要有高钒,镍基、铜钢等几种焊条,这些焊条在一定程度上能解决焊补中出现的裂纹或白口问题,但镍在我国较缺乏,钒的价钱较贵,故成本高.高钒及铜钢焊条的焊接接头又不易进行机械加工。为进一步解决上述问题,我们在深入进行理论分析的基础上,研制了钼钒型铸铁冷焊焊条.一、研制钼钒型铸铁焊条的理论分析
Welding defects of cast iron with greater economic benefits. At present, the commonly used cast iron cold-welding electrodes are mainly high-vanadium, nickel-based, copper and other electrodes, these electrodes to some extent, can solve the problem of cracks or whiteouts appear in the welding repair, but nickel is more scarce in our country, vanadium The price is expensive, so the cost is high.High vanadium and copper steel welding rod joints are not easy machining. In order to further solve the above problems, we developed a molybdenum-vanadium cast iron cold-welding electrode on the basis of in-depth theoretical analysis.One, the theoretical analysis of molybdenum-vanadium-type cast iron electrode