一、反压铸造发展简史 反压铸造在我国也称压差铸造,是低压铸造(或真空吸铸)和压力下结晶两种先进工艺方法的结合。 反压铸造的工艺特点是压力场的作用贯穿于充型与凝固的全过程,由于它具有理想的浇注、充型条件和优越的凝固条件相配合,因而能获得优质铸件。 反压铸造是在分析了充型、凝固过程中外界因素(加压)作用能获得优质铸件这一原理上发展起来的,正式提出反压铸造并获 First, the history of the development of anti-pressure casting Back-pressure casting in China, also known as differential pressure casting, low pressure casting (or vacuum suction) and pressure under the crystallization of two advanced technology combination. Backpressure casting process is characterized by the role of the pressure field throughout the filling and solidification of the whole process, because it has the ideal pouring, filling conditions and superior solidification conditions match, which can obtain high-quality castings. Backpressure casting is developed on the principle that high quality castings can be obtained by external factors (pressurization) during filling and solidification. Back pressure casting was formally proposed