铜合金是一种贵重金属,节约使用铜合金对支援社会主义建设事业有着十分重要的政治、经济和军事意义。在工业生产中,由于各种铜合金零件的加工,有大量的、各种牌号的铜合金切屑。这些铜合金切屑的回收和利用,对节约铜合金来说是一个极为重要的问题。由于铜合金的种类和牌号很多,回收铜合金切屑过程中稍不注意就会混淆在一起,而且这些铜合金切屑还往往含有各种杂质,如铁末、油污、水份、灰尘……等。如果不 Copper alloy is a precious metal, saving the use of copper alloy to support the socialist construction has a very important political, economic and military significance. In industrial production, due to various copper alloy parts processing, there are a large number of various grades of copper alloy chip. The recovery and utilization of these copper alloy chips is an extremely important issue for saving copper alloys. Due to the type and grade of copper alloy, the process of recovering the copper alloy chips will be confused with a little carelessness, and these copper alloy chips often contain various impurities such as iron powder, oil, water, dust and the like. if not