【摘要】 铁型覆砂铸造是在金属型(称为铁型)内腔覆上一薄层型砂而形成铸型的一种新型铸造工艺,其主要工艺参数为铁型壁厚和覆砂层厚度.我们通过不同的覆砂层厚度对铝合金圆柱试样进行铸造,利用热电偶测其凝固冷却曲线,分析了铸造过程中砂型厚度和铁型厚度对冷却速度的影响。更多还原

【Abstract】 Sand lined metal mould casting is a new casting method that it covers with a floor of moulding-sand and come into being a molten shape in the metallic mould(called ferric mould) interspace,whose main craft parameter is iron mould type and sand layer thickness.We carry on the foundry to the aluminum metal alloy cylinder sample by the different sand thickness,making use of the thermocouple to measure the cooling curve and analyzes the effect of sand and iron mould thickness to cooling velocity in this paper.更多还原