1 前 言 凡是有压铸的地方,皆存在着飞边问题。这就成为在常规生产中以及特别是在全自动化生产中主要攻克的对象。 飞边的形成,常常是由于动态压力峰所引起。在型腔填充阶段,大量的熔融金属在高速运动中突然受阻,而所储备的动能急骤地形成超高的压力所致。 数年来,一直在寻求控制这类有害的压力峰的 1 Preface Where there is die-casting place, there is the existence of the flash problem. This has been the object of major acquisition in conventional production and especially in fully automated production. The formation of flash is often caused by dynamic pressure peaks. In the cavity filling stage, a large number of molten metal suddenly blocked in the high-speed movement, and the kinetic energy stored by the rapid formation of ultra-high pressure due. Over the years, it has been seeking to control such unhealthy pressure peaks