改进型铸铜冷却壁关键制造技术研究

摘要

Compared with the rolling of copper cooling stave, cast copper cooling stave is easy to manufacture and has lower cost. So, it has good application prospect. However, for buried steel cast copper cooling stave, metallurgical bonding interface state of Cu-Fe directly affects heat conduction ability, which is the key technology of manufacturing cooling stave of cast copper. The paper was introduced effect of interface copper of Cu-Fe by different processing methods and process experimen-tal study of steel hot dipping copper. The results has showed that the purification of steel tube surface was key to achieve better Cu-Fe combining layer; guaranteeing the metallurgical combination of Cu-Fe interface in 1 100℃ heat preservation 1 h;steel tube hot dipping Cu test showed that the cooling wall steel pipe can be used in copper liquid 1 200℃ for 2.5 h with-out melting and melt. The above test results played an important role on improving performance of cooling stave of cast copper.%与轧制铜冷却壁相比，铸铜冷却壁易于制造，成本更低，因此有很好的应用前景，但是对于内埋钢管的铸铜冷却壁而言， Cu-Fe界面冶金结合状态直接影响其导热能力，是制造铸铜冷却壁的关键技术。介绍了钢管外表面不同处理方式对Cu-Fe结合界面的影响和钢管热浸铜工艺试验研究，研究结果表明，钢管表面的净化处理是获得较好的Cu-Fe结合层的关键，在1100℃，保温1 h下，可以保证Cu-Fe界面的冶金结合；钢管热浸Cu试验表明，冷却壁所用钢管能在1200℃的铜液中浸泡2.5 h而不会熔化和熔穿。