3.铸造条件与压铸型设计 在压铸的诸条件中,重要的因素之一是压射室的充填率。向压射室注入熔液后,使压射室内的空气一面从浇口排出,一面进行低速压射,当压射室内充满熔液后就改换成高速。此时,由于注入量的变化,即压射室的充填率不同,高低速的变更位置也不同。 3. Casting conditions and die-casting design In the die casting conditions, one of the important factors is the injection chamber filling rate. After injecting the molten metal into the injection chamber, the air in the injection chamber is discharged from the gate, and the injection is performed at a low speed. When the injection chamber is full of melt, it is changed to a high speed. At this time, due to changes in injection volume, that is, injection chamber filling rate varies, high and low speed changes in the location is also different.