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系统地研究了熔融玻璃和循环过热相结合方法对净化效果的影响；提出了大体积液态金属获得深过冷的优化工艺；采用该工艺可快速、稳定地使６～２０ｇＮｉ８１．１５Ｓｉ１８．８５、Ｎｉ２８．６４Ｓｉ２１．３６、Ｎｉ７４．１７Ｓｉ２５．８３、Ｎｉ５０Ｃｕ５０、Ｆｅ７６Ｂ１２Ｓｉ１２合金分别获得２９９Ｋ（０２０２Ｔｍ）、２６９Ｋ（ｏ．１９Ｔｍ）、２６３Ｋ（０．１７２Ｔｍ）、３２０Ｋ（０．２０２Ｔｍ）、３６７Ｋ（０．２５７Ｔｍ）大过冷，并使其保持４～６个循环周期不衰减，同时采用该工艺还首次成功地制备Ｆｅ７６Ｂ１２Ｓｉ１２及Ｆｅ７６Ｂ１２Ｓｉ１０Ｃ２合金的块状纳米软磁材料。研究结果表明，净化玻璃的化学成分、循环过热温度及净化过程中熔融玻璃和合金液的良好排气条件是影响净化效果的主要因素。
The influence of the combined method of molten glass and overheating on the purifying effect was systematically studied. An optimized process for obtaining large volume liquid metal to obtain deep overcooling was proposed. By this process, 6 ~ 20gNi81.15Si18.85, Ni28 .64Si21.36, Ni74.17Si25.83, Ni50Cu50 and Fe76B12Si12 alloys were respectively obtained 299K (0202Tm), 269K (0.19Tm), 263K (0.172Tm), 320K (0.202Tm), 367K ) Is too cold and keeps it unchanged for 4 ~ 6 cycles. At the same time, it is also the first successful preparation of bulk Nano soft magnetic materials of Fe76B12Si12 and Fe76B12Si10C2 alloy by this process. The results show that the main factors affecting the purification effect are the chemical composition of the purified glass, the temperature of the overheating cycle and the good exhaust conditions of the molten glass and the alloy liquid during the purifying process.