用铅青铜、铝铁青铜或其他无锡青铜来代替锡青铜做耐磨零件,并不能达到节约材料的目的。我们作了试验,如果用经过一定热处理的铸铁来代替青铜,可以达到节约材料的效果。试验所用的铸铁是СЧ1—32。这种铸铁总的含碳量是3.6%,其中化合碳是0.66%,游离石墨2.94%,另外:硫0.05%、锰0.46%、硅2.57%,镍0.22%、磷0.12%。铸铁试样先进行硫化处理。硫化剂由75%亚硫酸铁、20%,无水氧化铝和5%氯化铵级成。硫化剂中所含的无水氧化铝,可防止硫化剂的粘结;所含的氯化铵,可防 Use lead bronze, aluminum iron bronze or other bronze instead of tin bronze wear-resistant parts, and can not achieve the purpose of saving materials. We have tested, if you use a certain heat treatment of cast iron instead of bronze, you can achieve the effect of saving materials. The cast iron used for the test is СЧ1-32. The total carbon content of this cast iron is 3.6%, of which 0.66% is carbon, 2.94% free graphite, 0.05% sulfur, 0.46% manganese, 2.57% silicon, 0.22% nickel and 0.12% phosphorus. Cast iron samples for vulcanization. The curative is made up of 75% ferrous sulphite, 20% anhydrous alumina, and 5% ammonium chloride. Curing agent contained in the anhydrous alumina, curing agent can prevent the bond; Contained ammonium chloride, prevent