The Foundrymould made by polyurethane can serce for 80,000 times, it is similar with the mould made by aluminum alloy.
用聚氨酯材料制造的铸造模具,使用寿命可达8万次,与铝合金模具相当。
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The foundrymould made by polyurethane abroad from aspects of mechanical property, wear-resistant condition, and technology method have been introduced.
This paper described the foundry technology of horizontal pouring and solidifying to produce large hollow ductile iron crankshaft cast in sand coated iron mould.