From the chemical composition, trace element, inoculation and thermal exchange of metal mold casting, the principle of chill formation and the effective methods for preventing chill were studied.
文章从铸铁的化学成分、微量元素、孕育处理及金属型的热交换方面叙述了产生白口的原理及防白口的有效方法。
Sulphur is a potent chill-forming element. This element must be neutralised by maintaining adequate manganese content in accordance with the formula below as a minimum.
硫是冷成型的有效元素。该元素必须保持适量的锰元素成分来进行中和，参考如下公式作为锰含量的最小值。
Sulphur is a potent chill-forming element.
硫磺是一种有效的冷硬成形成份。
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