Chung tay xây dựng cộng đồng Cấp bậc: Binh nhì
Tham gia: 22/4/2022 Bài viết: 13 Đánh giá: [0]
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Cast iron is an alloy composed of iron, carbon and silicon, in which iron and carbon each account for about half, and usually contain a small amount of silicon and manganese, sulfur, phosphorus and other impurities. Cast iron can be divided into different types such as ordinary cast iron, nodular cast iron, and malleable cast iron, and their mechanical properties and uses are different.
Ordinary cast iron is a more common type of cast iron, in which the content of iron and carbon is relatively high, usually 2.5% to 4.5%, and it has high hardness and good wear resistance. The structure of ordinary cast iron is mainly ferrite and pearlite, in which ferrite is the main matrix structure, and pearlite is a spherical graphite structure distributed on the ferrite matrix. Ordinary cast iron has good mechanical properties, but its processing performance is poor, so it is not suitable for manufacturing some mechanical parts that require high precision.
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