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电渣焊在我国务工矿企业中已经运用得相当广泛,但是从使用于钢材的品种上来看,还大都限于含碳量在0.35％以下的碳素钢。然而有许多受较大负荷的锻轴,这类的部作,在全国中小型的机械制造业里还占着相当大的比例,而且大都是采用具有较高强度的中碳钢。例如我厂生产的桥式超重机上的减速机被动齿轮轴,过去是在外厂用2000吨的水压机将钢锭解坯,然后用5吨锻锤锻成毛坯,不但生产周期长,而且金属浪费很大。根据我厂锻造能力不足的情况,曾对含碳量在0.45～0.55％的中
Electroslag welding in China’s industrial and mining enterprises have been widely used, but from the species used in the steel point of view, but also mostly limited to carbon content below 0.35% of carbon steel. However, there are many large-load forged shafts. Such work also occupies a large proportion of the small and medium machinery manufacturing nationwide, and most of them use medium-carbon steel with higher strength. For example, I plant on the bridge overweight machine reducer passive gear shaft used to be used in the factory with 2,000 tons of hydraulic press slab, then forged with 5 tons forging rough, not only the production cycle is long, and the metal wasted . According to my factory lack of forging capacity, carbon content in the 0.45 ~ 0.55% of the