5183铝合金小直径圆铸锭熔铸工艺研究

Research of melting and casting process on 5183 aluminum alloy ingot with small diameter

生产焊丝用的5183铝合金小规格铸锭铸造时容易产生拉裂缺陷,铸锭的冶金质量也难以保证。在合金成分优化、熔炼和净化技术、铸造工艺参数等方面进行了试验研究,对制得的铸锭进行表面质量、化学成分偏析、高倍组织、力学性能检查,结果表明,所确定的合金成分、熔炼铸造工艺技术和参数能够生产出合格的铸锭,为焊丝的生产提供优质的铸锭。

The 5183 aluminum alloy ingot with small diameter is used as raw material of welding wire.The stretching cracks are occurred easily during casting,so the metallurgical quality of the ingot is difficult to guarantee.In order to produce quality ingots,chemical compositions have been optimized,the melting,refining and casting technologies have been investigated.The surface quality,segregation,microstructure and mechanic properties have been analyzed.The results show that the selected chemical composition,melting process,casting technology and parameters are the optimum.Using the above mentioned technologies the high quality ingots for welding wire can be produced.