关于稀土金属加入钢中生成的夹杂物研究,至今还是不多的。只有Sims、Klillieqvist及??等报道过一些稀土钢中夹杂物的鉴定。??、??及李静媛曾于试验室石英管炉中,在纯铁液里配制稀土夹杂物,比较详细地用金相、岩相、腐蚀、X-光衍射、显微硬度测定等法进行判定。但就不同预脱氧剂对加稀土的钢夹杂物含量、类型、分布及质点大小的影响,还未见研究。为了使稀土金属在钢中起更好的作用,我们在高频感应炉中对加稀土的30 CrMnSi钢进行了不同预脱氧剂对 There are still few studies on inclusions formed by adding rare earth metals into steel. Only Sims, Klillieqvist, and others reported the identification of inclusions in some rare earth steels. Li Jingyuan had in the laboratory quartz tube furnace, preparation of rare earth inclusions in the pure iron liquid, in more detail by metallography, lithofacies, corrosion, X-ray diffraction, microhardness determination method determination. However, different pre-deoxidizer on the content of rare earth-doped steel inclusions, type, distribution and size of the impact of particles, but no study. In order to make the rare earth metal play a better role in the steel, we conducted a different pre-deoxidizer pair on the rare earth-added 30 CrMnSi steel in the high frequency induction furnace