They involve the alloy composition approaching stoichiometic composition,strip casting,Hitach low oxygen process and rubber(cold) isostatic pressing.
阐述了有望提高Ｎｄ－Ｆｅ－Ｂ烧结磁体性能的新思路和新工艺，包括：配方趋近Ｎｄ２Ｆｅ１４Ｂ正分成分、片铸（带铸）工艺、日立低氧湿压工艺、橡胶模冷等静压。
The results showed that the massive non-metallic inclustions which existed in the continuous casting slab caused internal stress between the substrate and the inclustions.
结果表明:由于连铸铸坯内存在大量非金属夹杂物,导致基体与夹杂物之间产生内应力,因此在拉伸过程中促使裂纹的迅速扩展,形成穿晶裂纹和空洞,最终呈现伸长率偏低的结果。