2A12铝合金Φ110mm铸锭热顶铸造工艺研究  

Research on the hot-top casting process for Ф110 mm ingots of 2A12 aluminum alloy

作　　者：腾志贵[1] 李海仙[1] 张珺玲[1] 姜德俊[1] 武子原[1] 

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2014年第6期34-37,44,共5页Light Alloy Fabrication Technology

摘　　要：为了提高2A12铝合金的Φ110 mm铸锭质量,采用热顶铸造进行试验研究。结果表明,2A12铝合金的熔炼温度控制在700℃~750℃,铸造温度在700℃~720℃,铸造速度在140 mm/min^160 mm/min,在铸造过程中采取有效的在线净化装置进行除气,并对铸锭进行480℃~495℃10 h的均匀化退火,能生产出组织和性能满足用户要求的铸锭。In order to improve the quality of Ф 110 mm ingots of 2A12 aluminum alloy,the hot-top casting was conducted for the experimental study. The results show that melting temperature of 2A12 aluminum alloy should be controlled at 700℃ - 750℃, casting temperature at 700℃ -720℃, and casting speed at 140 mm/min - 160 mm/min. When effective online purification devices for degassing are adopted, and the ingots are annealed at 480℃ -495℃ for 10 h, the satisfactory ingots could be produced to meet customers＇ requirements for the structure and performances.

关 键 词：2A12铝合金铸锭 热顶铸造 小直径 铸造工艺 质量分析 

分 类 号：TG292[金属学及工艺—铸造]