液态挤压是将液态金属直接注入挤压筒内,然后在挤压活塞的施压下,使熔融态的金属结晶凝固,并经挤压筒出口,产生大的塑性变形,从而获得管材、型材和棒材的一种新的液态成形工艺。其特点是,液态金属在压力下成核,结晶凝固;在流动过程中,承受剪切变形,使晶核大量破碎;经过出口端,产生大的塑性变形。利用这种方法生产管材、型材,比传统方法减少许多工步,技术经济指标高,适用于中、小 Liquid extrusion is the liquid metal directly into the extrusion barrel, and then under the pressure of the extrusion piston, the molten metal crystals solidified, and the extrusion cylinder outlet, resulting in large plastic deformation, resulting in pipe, profile And bar of a new liquid forming process. Its characteristic is that liquid metal nucleates under pressure and crystallizes and solidifies. During the flow process, it undergoes shear deformation and breaks down a large number of crystal nuclei. After the outlet end, large plastic deformation occurs. The use of this method of production of pipe, profile, than the traditional method to reduce the number of steps, high technical and economic indicators, suitable for medium and small