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高矽合金铸铁对於含氧的酸类,具有优良的化学稳定性,能耐酸类介质的腐蚀,所以它是一种很好的耐酸材料。它在化学工业上的用途是很广泛的,可以制造各种不同的化学工业所需的设备,如各种耐酸泵、蒸溜塔、贮藏器、附件、导管等。高矽合金铸铁与铁碳合金(钢与铸铁)不同;由於含有高硬度的矽铁素体和既脆又硬的矽化铁,使它的机械性能很低,硬度很高,而且很脆。因此,机械加工是很困难的,一般是用磨床研磨来达到所要求的几何尺寸。而且这种合金的导热性很低,不能经受局部的加热和温度的急剧变化。高矽合金铸铁的熔点是1195℃,有很好的流
High silicon alloy cast iron for oxygen-containing acids, has excellent chemical stability, acid-resistant medium, so it is a good acid-resistant materials. It is used in the chemical industry for a wide range of purposes, making it possible to manufacture equipment for a wide range of different chemical industries, such as various acid pumps, distillation columns, storage containers, accessories, ducts and the like. High-silicon alloy cast iron and iron-carbon alloy (steel and cast iron) is different; due to the high hardness of ferrosilicon and brittle and hard both of ferrosilicon, making it very low mechanical properties, high hardness, and very brittle. Therefore, machining is very difficult, usually with a grinder to achieve the required geometry. And this alloy is very low thermal conductivity, can not withstand the local heating and rapid temperature changes. High silicon alloy cast iron melting point is 1195 ℃, have a good flow