在生产工艺上如何把稀土有效而稳定地加入钢中,仍然是个问题。为此,我们试验了几种加入方法,对比其效果。通过扫描电镜和金相显微镜的观察以及其他的冶金质量分析,发现钢包喷射法加入稀土比通常所用的投入法效果好,可以提高稀土的回收率,减少钢中的非金属夹杂并消除浇注水口的结瘤现象。 How to effectively and stably add rare earth to steel in the production process is still a problem. To this end, we tested several ways to join, compare the effect. Through the observation of SEM and metallurgical microscopes and other metallurgical quality analysis, it is found that the ladle injection method is more effective than the commonly used method, which can increase the recovery of rare earths, reduce the non-metallic inclusions in steel and eliminate the Nodulation phenomenon.