球墨铸铁的处理通常是在铁水包内进行。这种方法会招致铁水温度的降低,产生大量的烟雾,污染车间的空气。同时耗用球化合金较多,物理性能变化不定,还容易产生夹渣、针孔、过硬碳化物和起皮等缺陷。英国材料工艺公司发展了一种新的球化处理方法,在很大程度上解决了上述各项问题。这种方法叫做铸型内球化处理法。在浇注铁水过程中,同时 Ductile iron is usually processed in ladle. This method will lead to the reduction of the temperature of molten iron, resulting in a large number of smoke pollution of the workshop air. At the same time consume more ball alloy, physical properties vary, but also prone to slag inclusions, pinholes, carbides and peeling and other defects. The British material technology company developed a new method of ball treatment, to a large extent, solve the above problems. This method is called the mold of the ball treatment method. In the process of pouring molten iron at the same time