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本文介绍了一种生产双金属管的新方法,即将贵金属管与一般金属管进行组合、冷拉后在高温下经过较长时间 扩散的方法。这种复合工艺可以在常规的管材生产线上进行。新工艺可以节省贵金属60％以上。采用化学处理的 方法基本上解决了返回料的回收问题。
This article describes a new method for producing bimetallic tubes, which is the combination of a precious metal tube with a generally metal tube, and a method of diffusing it at a high temperature for a long time after cold drawing. This compounding process can be performed on a conventional pipe production line. The new process can save precious metals more than 60%. The use of chemical treatment basically solved the problem of the recovery of the return material.