热型连铸铝线的制备及其显微组织和性能

发布时间：2018-04-10 05:19

  本文选题：热型连铸　切入点：表面质量　出处：《中国有色金属学报》2015年07期

【摘要】：采用自制的热型连铸设备制备铝线材料,研究铸型温度和拉铸速度等工艺参数对材料表面质量、显微组织及力学性能的影响,通过对最佳工艺条件下制备的铸锭断口形貌进行观察和分析,探讨其相关机理。结果表明:当铸型温度为675~685℃、拉铸速度为90~120 mm/min时,可以制备出表面质量较佳的铸锭;同时,工艺参数会对晶体的择优取向产生一定影响,当铸型温度和拉铸速度分别为680℃和90 mm/min时,晶体的取向更倾向于沿?100?方向生长,铸型温度越高,铸锭力学性能越优异。当拉铸速度为90 mm/min时,制备的热型连铸铝线具有最佳的塑性加工能力。相比于普通多晶铝线,热型连铸铝线具有更好的塑性。
[Abstract]:Aluminum wire materials were prepared by using a self-made hot mold continuous casting equipment. The effects of casting temperature and casting speed on the surface quality, microstructure and mechanical properties of the materials were studied.The fracture morphology of the ingot prepared under the optimum technological conditions was observed and analyzed, and the related mechanism was discussed.The results show that the better surface quality ingot can be prepared when the mold temperature is 675 ~ 685 鈩，

本文编号：1729829