矽鋼片中含磷(P), 會產生史帝田鉄, 使FCD延伸率劣化. 許多人不知此理, 都繳過學費. 你呢? Silicon steel sheet contains P element and will produce hard and spiky Steadite which is very detrimental to the toughness of ductile iron. So, never ever use silicon steel sheet in the production of ductile iron. Many foundries paid their tolls. What about you?
史帝田鉄特徵: 胡椒點; 沒有胡椒點的是碳化物.
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