一、前言液态模锻又称挤压铸造。它是在研究压力铸造的基础上逐步发展起来的,是属于铸造和锻造的边缘学科。液态模锻的实质是把定量的液态金属直接浇入金属模内,然后在一定时间内以一定的压力作用于液态(或半液态)金属上,使之成形,并在此压力下进行塑性流动和结 First, the foreword Liquid die forging, also known as squeeze casting. It is developed on the basis of research on pressure casting and belongs to the edge discipline of casting and forging. The essence of liquid die forging is the quantitative liquid metal directly into the mold, and then in a certain period of time to a certain pressure on the liquid (or semi-liquid) metal, forming, and under the pressure of plastic flow And knot