砂浆泵叶轮原用HT28—48或HT32—52制造,使用寿命短(仅一周)。在厂党委的领导下,利用废旧镍铬丝,配制了耐磨合金铸铁,使用寿命比原来提高6～7倍。今将试验情况介绍如下: 一、化学成分:熔炼设备为坩埚焦炭炉。炉料配比为新生铁59.4％,废钢12％,回炉铁24.8％,废镍铬丝(含Cr20％、Ni80％)1.23％,碳素铬 Mortar pump impeller used HT28-48 or HT32-52 manufacture, short life (only one week). Under the leadership of the factory party committee, the use of waste nickel-chromium wire, formulated wear-resistant alloy cast iron, the service life increased by 6 to 7 times. The test situation will be introduced as follows: First, the chemical composition: melting equipment crucible coke furnace. The ratio of charge to charge is 59.4% for fresh pig iron, 12% for scrap, 24.8% for pig iron, 1.23% for waste nickel-chromium wire (Cr20%, Ni80%),