Acta Metallurgica Sinica (English Letters) ›› 2010, Vol. 23 ›› Issue (3): 206-214.DOI: 10.11890/1006-7191-103-206

• 研究论文 • 上一篇    下一篇

铜包铝双金属材料充芯连铸工艺的研究

梁贺   

  1. 北京科技大学
  • 收稿日期:2009-10-14 修回日期:2010-02-03 出版日期:2010-06-25 发布日期:2010-10-14
  • 通讯作者: 梁贺

The Research on Continuous Core-Filling Casting Forming Process of Copper-clad Aluminum Bimetal Composite Material

Liang He   

  1. University of Science and Technology Beijing
  • Received:2009-10-14 Revised:2010-02-03 Online:2010-06-25 Published:2010-10-14
  • Contact: Liang He

摘要: Abstract: A single forming equipment of bimetal continuous core-filling casting was designed and manufactured for the purpose of developing copper-aluminum composite materials. The characteristics of the equipment were as follows: the crystallizer composed of water jacket copper sleeve in which graphite sleeve was set, two melting furnaces with different diameters vertically distributed, the low furnace of melting copper linked with the crystallizer, continuous casting and core-filling proceeded at the meantime. The rational processing parameters were determined through a series of experiments: contact length from down crucible to water–cooling cupreous crystallizer, 20mm; length of recooling spray jet and under crystallizer, 95mm; temperature of copper and aluminum,1250-1320℃ and 700℃ respectively; pulling rate, 16mm/min. The qualified copper-clad Aluminum composite rods of which external and inner diameter was 40mm and 24mm respectively could be drawn successfully on that basis. Tested by hydrostatic extrusion and drawing process, the boss ratios of the copper-clad aluminum composite rods were maintained a relatively stable scope about 0.59-0.65, which was not obviously changed by subsequent plastic processing.

关键词: Continuous core-filling casting, Bimetal composite rod, Copper-clad aluminum 充芯连铸, 双金属棒材, 铜包铝