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日本钢管公司(NKK)最近研究出一种薄钢板制造新方法(CVD)生产6.5％Si-Fe高性能磁性材料,在世界上首次获得成功。这种新材料可与非晶态电工材料相媲美。这种薄钢板的主要成分是含Si6.5％,不包含其它特种合金。钢管公司1987年春天曾发表过采用普通薄钢板制造工艺(轧制法),在世界上第一次成功地制造出薄板卷,最近又再次成功地研究出应用CVD技术新方法。 CVD法的基本原理是,在特殊高温连续热处理作业线上,对冷轧钢板进行CVD与扩散处理,使硅含量达到6.5％。所谓CVD法,就是化学汽相蒸镀法(chemicalvapour deposition)。以前曾采用这种方法
Japan’s Tubular Company (NKK) recently developed the first successful world-record for a 6.5% Si-Fe high-performance magnetic material produced by a new method of sheet metal manufacturing (CVD). This new material is comparable to amorphous electrical materials. The main component of this thin steel is Si6.5%, does not contain other special alloys. In the spring of 1987, Steel Pipe Company published the first ordinary sheet steel manufacturing process (rolling method) in the world and succeeded in developing a new method for applying CVD technology. The basic principle of the CVD method is that CVD is performed on a cold-rolled steel sheet at a special high-temperature continuous heat treatment line so that the silicon content reaches 6.5%. The so-called CVD method is chemical vapor deposition (chemical vapor deposition). This method was used before