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我厂自从生产球铁以来,一直采用,“冲入法”球化处理工艺,这种工艺虽然有一定优点,但存在着镁光大,空气污染,镁和稀土吸收率低等缺点。我们学习了国内外的先进经验,把“冲入法”改成了简易复包一夹心球化处理工艺,克服了“冲入法”的缺点。这种新工艺,实质上是复包球化处理法与国外夹心冲人法的综合应用。简易复包是在普通铁水包中,安设一个形似小
Since our factory has been producing ductile iron, has been adopted, “into the law” ball treatment process, although this process has some advantages, but there is a large magnesium, air pollution, magnesium and rare earth absorption rate and other shortcomings. We have learned advanced experience both at home and abroad, and changed the “red-in-law” into a simple bag-in-a-sandwich process to overcome the shortcomings of “punching in”. This new process, in essence, is the compound ball processing method and the comprehensive application of sandwich method. Simple bag is in the ordinary iron ladle, the installation of a small shape