re-refining technology 再精炼技术
The good effect has been gained on the hypereutectic Al Si alloys treated with some double refining and modifying agents such as P, S, RE, Sr, Na, C, etc.
采用磷、硫、稀土、锶、钠、碳等进行双重细化变质处理过共晶铝硅合金已取得了良好的效果。
The refining mechanism of RE was analyzed.
并且，进一步分析了稀土细化机制。
Resutls also prove the best comprehensive effect on refining of steel can be obtained by the addition of MgCa-RE complex alloy.
结果还表明使用镁钙稀土复合合金可取得最佳的综合精炼效果。
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