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第一节概述挤压铸造是一种将一定量的液态金属注入模具型腔,然后施加较高的机械压力,使液态或半固态的金属在压力下低速充型、凝固和发生少量塑形变形,获得毛坯或零件的材料加工技术~([1-2])。与其他铸造成形方法相比,该技术具有选材范围宽、金属液利用率高、铸件组织均匀致密、力学性能优良、表面光洁度和尺寸精度高等优点。与塑性成形方法相比,具有变形力和成形能较小、无需多道工序加工、可制造形状复杂
Section I Overview Squeeze casting is the injection of a certain amount of liquid metal into a mold cavity and then applying high mechanical pressure to allow liquid or semi-solid metal to be filled at low speeds under pressure, solidified and deformed to a small extent , Access to rough or parts of the material processing technology ~ ([1-2]). Compared with other casting forming methods, this technology has the advantages of wide selection range, high utilization rate of molten metal, uniform and dense casting structure, excellent mechanical properties, high surface finish and high dimensional accuracy. Compared with the plastic forming method, with a deformation force and forming energy is small, without the need for multiple processes, can create complex shapes