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压铸件的气孔问题,一直是国内、外压铸工作者非常重视的难题。定向抽气压铸法(D·C·压铸法)是在真空压铸法和充氧压铸法的基础上研制出来的一种新压铸法,是一种解决压铸件气孔的有效方法。这种方法于1972年试验成功,曾在国内进行过推广和应用。经过多年的生产实践,对它进行了不断地研究和改进,现已日益完善。本文着重介绍此法抽气机构设计的有关问题。 设计合理可靠的抽气机构,是D·C·压铸法的关键。金属液填充型腔以及抽气道的过程是一个非常复杂的过程。影响金属液流
Stomatal problems of die casting have always been the problems that domestic and foreign die casting workers attach great importance to. Directional suction die casting (D · C · die casting method) is a new die casting method developed on the basis of vacuum die casting method and oxygenation die casting method, which is an effective method to solve the porosity of die casting. This method was successfully tested in 1972 and has been promoted and applied domestically. After years of production practice, it has been constantly studied and improved, and has been improved. This article focuses on the design of the exhaust mechanism related issues. Design reasonable and reliable suction mechanism, is the key to the D · C · die-casting method. The process of filling the cavity with the liquid metal and the extraction duct is a very complex process. Affect the metal flow