【摘要】 采用发热合金炉外合金化办法,可使铬吸收率达90~99%,钼95~97%,钒85~90%,达到冲天炉熔炼条件下节约合金消耗、降低成本和提高铸件性能的目的。更多还原

【Abstract】 Abstract The effects of various factors such as the types of exothermic agents used, ferroalloy level in exothermic alloys and treatment technique on absorptivi-ty of alloy elements and mechanical properties ot castings were investigated. The production test of ladle alloying by using exothermic alloy proved to be effective. The experimental results showed that using exothermic alloys, the absorptivity of Cr, Mo and V is as many as 90~99%, 95~97% and 85 ~90% respectively, thus reducing alloy consumption, cutting down production cost and increasing mechanical properties of castings under the condition of cupola melting.更多还原