高压造型机促进了铸造生产力的发展和铸件质量的提高。但是,它有一个关键缺点是“铸型软点”。为了消除“软点”,曾用增加比压的方法,但又带来了“砂型回弹”的问题。为了消除“软点”和“回弹”,采取过一系列措施,但未解决“软点”与“回弹”的机理问题。导入了物理学中的盖吕萨克气体定律,将引起“软点”与“回弹”的原因统一在一个定律中。按此机理,介绍了联邦德国KW公司现今生产的真空加砂高压造型机,在造型机的研究方面,有一定参考价值 High-pressure molding machine to promote the development of casting productivity and casting quality improvement. However, one of the key drawbacks is that it “casts a soft spot.” In order to eliminate the “soft spot”, the method of increasing the specific pressure has been used, but the problem of “sand spring rebound” has also been brought about. In order to eliminate the “soft spot” and “rebound,” a series of measures have been taken but the mechanism of “soft spot” and “rebound” has not been solved. The introduction of the laws of the Gailusacher gas in physics unifies the causes of “soft spots” and “rebounds” in one law. According to this mechanism, introduced the current German company KW German vacuum sand high pressure molding machine, molding machine in the study, there is a certain reference value