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特种铸造是在造型材料及方法、工艺装备及金属液充型方式上与普通砂型铸造有显著差别的,获得的铸件比普通砂型铸件表面光洁、尺寸精确或机械性能高的铸造工艺。特种铸造的发展已有几千年的历史,工业生产中应用的现代特种铸造也有百余年的发展历史,其工艺方法发展到二十种之多。据其发展的过程及特点,大体可以分为三个发展时期。即:特种铸造的兴起期;特种铸造的转化期;特种铸造的发展期。
Special casting is in the modeling materials and methods, process equipment and liquid metal filling mode and ordinary sand casting are significantly different, the castings obtained than ordinary sand casting surface smooth, accurate or high mechanical properties of the casting process. The development of special casting has been for thousands of years of history, and industrial application of modern special casting also has a hundred years of development history, and its method of development has grown to as many as 20 kinds. According to its development process and characteristics, can be roughly divided into three development periods. Namely: the rise of special casting; special casting of the transition period; special casting of the development period.