市场对铸件的要求很严格 ,对复杂形状精密铸件的最高要求是有高的表面质量 (降低加工成本 ) ,薄壁 (减轻重量 ) ,并具有合适的工艺和力学性能 ,接下来的要求就是低的价格 ,这些要求可以用“近净形”铸造工艺来完成。铸造厂常用壳型生产球墨铸铁件 ,而陶瓷型精铸多用于铸钢。球 The market for castings is very demanding, the highest requirements for complex shape precision castings are high surface quality (lower processing costs), thin-walled (weight-saving), and has the appropriate process and mechanical properties, the next requirement is low Of the price, these requirements can be “nearly net shape” casting process to complete. Foundry commonly used in the production of ductile iron castings, while the ceramic castings are mostly used in steel casting. ball