长型钢材用高纯净钢的生产［德］Ｌ．Ｐｏｃｈｍａｒｓｋｉ等１前言钢的纯净度与钢中的硫化物、氧化物和氮化物的含量有关。材料科学和应用工艺的发展向冶金工作者提出了更高的要求，除了满足严格的成分要求外，有些钢材还要求碳、硫、氧、磷、氮和氢的含量特别低。所有这... Long steel with high purity steel production [Germany] L. Pochmarski et al. 1 Introduction The purity of steel is related to the amount of sulfide, oxides and nitrides in the steel. Advances in materials science and applied processes place higher demands on metallurgists, and in addition to meeting stringent compositional requirements, some steels require particularly low levels of carbon, sulfur, oxygen, phosphorus, nitrogen and hydrogen. All this ...