一、液态模锻的由来二次大战以后,以汽车工业为中心,铸造技术获得了很大的发展。在采用壳型压铸或高压、高速造型以后,其产量大幅度增加,发展十分惊人,对生产的合理化,提高尺寸精度以及降低废品率等都给予了足够的重视。所谓铸造,就是“先制成砂型空间,其空间的形状和尺寸与零件相同,然后将熔化的金属浇入砂型空间,使其凝固,从而制造出所需的零件。”这仅仅是对制造工艺而言,并不涉及铸件本身的质量。由此可见,铸造技术的发展主要着眼 First, the origin of liquid forging After the Second World War, the automotive industry as the center, foundry technology has been a great development. In the use of shell-type die-casting or high-pressure, high-speed modeling, the production increased dramatically, the development is very alarming, rationalization of production, improve dimensional accuracy and reduce scrap rate, and so have given sufficient attention. The so-called casting, is “first made of sand space, the space shape and size of the same parts, and then the molten metal into the sand space, so that it is solidified to create the necessary parts.” This is just for the manufacturing process In terms of, does not involve the quality of the casting itself. Thus, the development of casting technology mainly focus