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| nonmetallic inclusion modification (【技】为尽量降低非金属夹杂物对钢材质量的危害，在钢中加人少量变性剂，改变其结构、组成和形态，从而改变其性质的过程。常用的变性剂为钙合金、稀土合金。工业上大多用含钙合金(如CaSi) 进行钙处理使夹杂物得以变性，) | |||
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