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通过试验优化了ＲＥ（Ｃｅ）Ｃｕ合金和ＰＣｕ合金在铸造纯铜风口套中的添加比例及顺序，讨论了两种合金对风口套铸造中的组织净化、晶粒细化和综合性能提高的作用及效果
The proportion and order of RE (Ce) Cu alloy and P Cu alloy in casting pure copper tuyere were optimized through experiments. The effects of two kinds of alloys on microstructure refinement, grain refinement and comprehensive properties in tuyere casting were discussed Improve the role and effectiveness