充氧压铸是七十年代压铸工艺上的一种创新,它较真空压铸、双柱塞压铸等先进工艺有设备简单、操作方便、见效快、成本低等优点。目前,国外已推广应用这一新工艺。据报道,日本用此法生产的铝合金压铸件每年达十五万吨之多。在国内,一些单位已进行了试验研究和生产实践,收到了十分显著的效果。我厂压铸件因内部气孔,报废率相当大。为了解决这一问题,在上级领导的关怀下,在厂党委的具体领导下,厂工艺所于一九七三年三月开始了充氧压铸的试验研究工作。经过半年的试验,取得了初步成果,并已投入生产。一、充氧压铸的原理与实践压铸件内部气孔形成的主要原因,是在压 Oxygenated die-casting is a kind of innovation in the die-casting process of the seventies. Compared with vacuum die-casting and double plunger die-casting, oxygenation die casting has the advantages of simple equipment, convenient operation, quick response and low cost. At present, foreign countries have promoted the use of this new technology. It is reported that Japan uses this method to produce aluminum alloy die casting up to 150,000 tons per year. In China, some units have conducted experimental research and production practices and received very significant results. I die casting plant due to internal porosity, rejection rate is quite large. In order to solve this problem, under the leadership of the higher authorities, under the specific leadership of the factory party committee, the factory process began the experimental research on oxygenation and die-casting in March 1973. After six months of testing, preliminary results have been obtained and put into production. First, the principle and practice of oxygen-filled die-casting The main reason for the formation of internal pores is the pressure