一、课题的提出 压铸工艺在我国工业界已被广泛地应用,我们机电元件制造行业并无例外,人们已经悉习以为常了。但是,在合金熔炼中存在的不可避免的问题以及由此而造成的公害还没有引起足够的重视。就以本厂为例,直到八五年底才把这个问题提出,八六年年初进行试验,并开始纳入专业工艺文件之中,确认无公害精炼剂在本厂的应用。 本厂Q型卡口式圆形连接器的所有外壳零件和 C12型推拉式圆形连接器的部分外壳零件,都是用铝合金压铸成型 First, the subject of the proposed die-casting process in China’s industry has been widely used, we have no exception in the mechanical and electrical components manufacturing industry, people have learned that. However, the unavoidable problems in the smelting of alloys and the resulting pollution have not received sufficient attention. Take the factory as an example. Only by the end of 1985 did we put forward this issue and started the experiment in early 1986. It was also started to be incorporated into professional process documents to confirm the application of pollution-free refining agents in our factory. The factory Q type bayonet circular connector all the shell parts and C12-type push-pull circular connector part of the shell parts are made of aluminum alloy die-casting