低压铸造是一种介于重力硬模铸造和压力铸造之间的一种铸造工艺方法。它在二十世纪初便已被英法一些厂家所采用,但是发展很缓慢,没有引起铸造界的重视,直至第二次世界大战开始后,在欧美一些国家被广泛用来制造航空发动机气缸和汽车零件。低压铸造首先应用于铝合金、铜合金铸件生产,后来扩大到铸钢件生产。1955年美国格利芬车轮公司为提高铁路车辆用钢轮的表面质量和内部紧密性, Low pressure casting is a kind of casting process between gravity die casting and pressure casting. It was adopted by some manufacturers of Britain and France at the beginning of the 20th century. However, its development was slow and did not attract the attention of the foundry industry. Until the beginning of World War II, it was widely used to manufacture aero-engine cylinders and automobiles in some countries in Europe and the United States Components. Low-pressure casting first applied to aluminum, copper alloy castings, and later expanded to cast steel production. In 1955 the United States Griffin Wheel Company to improve the surface quality and internal tightness of steel wheels for railway vehicles,