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鋳鉄のDefination

六月 5, 2017

Cast iron is a group of iron-carbon alloys with a carbon content greater than 2%. Its usefulness derives from its relatively low melting temperature. 破断時に合金成分は、その色に影響を与えます: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite “結節” これがさらに進行するクラックを停止します.

炭素 (C) ranging from 1.8–4 wt%, and silicon (と) 1–3 wt% are the main alloying elements of cast iron. Iron alloys with less carbon content are known as steel. これは技術的のFe-C-Si系三元を行いながら、, the principle of cast iron solidification can be understood from the simpler binary iron–carbon phase diagram. Since the compositions of most cast irons are around the eutectic point (最低の液体のポイント) 鉄 - 炭素システムの, 融解温度は、通常の範囲 1,150 に 1,200 °C (2,100 に 2,190 °F), which is about 300 °C (540 °F) 純鉄の融点よりも低いです.

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