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概况球墨铸铁是近二十多年来发展起来的一种金属材料,由于它具有优良的使用性能和工艺性能,生产简便,成本低廉,因此近年来发展很快。从国内外的发展情况看,球墨铸铁的比例都是逐年增加,而且增长幅度很大,不少国家已经达到或超过了铸钢的产量,大大超过了可锻铸铁的产量,在法国和日本,球铁和灰铸铁之比已达到30%左右,说明球墨铸铁是一种非常富有生命力的材料。我国早在1950年就试制成功,并在五十年代已获得工业应用,但由于当时都用纯镁作球
Overview Ductile iron is a metal material developed over the past two decades, due to its excellent performance and process performance, easy production, low cost, so in recent years the rapid development. Judging from the development situation both at home and abroad, the proportion of ductile iron is increasing year by year, and the growth rate is very large. Many countries have already met or exceeded the output of cast steel, greatly exceeding the output of malleable iron. In France and Japan, ductile iron And the ratio of gray cast iron has reached about 30%, indicating ductile iron is a very viable material. As early as 1950, China trial success, and in the fifties has been industrial applications, but at that time with pure magnesium for the ball