航天推进技术研究院主办
[1]王琳,杨欢庆.提高铸铝合金洁净度的理论及工艺研究[J].火箭推进,2010,36(05):44-49.
WANG Lin,YANG Huan-qing.Theoretical and technological research on improving cleanliness of casting Al alloy[J].Journal of Rocket Propulsion,2010,36(05):44-49.
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WANG Lin,YANG Huan-qing.Theoretical and technological research on improving cleanliness of casting Al alloy[J].Journal of Rocket Propulsion,2010,36(05):44-49.
提高铸铝合金洁净度的理论及工艺研究
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
36
期数:
2010年05期
页码:
44-49
栏目:
工艺与材料
出版日期:
2010-10-15
- Title:
- Theoretical and technological research on improving cleanliness of casting Al alloy
- 文章编号:
- (2010)05-0044-06
- 分类号:
- TG292-33
- 文献标志码:
- B
- 摘要:
- 从机理上对浮游精炼法进行了理论分析，认为增加熔剂量可以提高除气效果，但过量的熔剂又可能会给铝液带来二次反应夹杂；[H]含量达到平衡浓度前，增加除气时间可以提高除气效果；随着静置时间的延长，[H]含量有一个先减少后增大的趋势。采用旋转吹气-熔剂法净化铝液，以净化后铝液的[H]含量为考察目标，按照均匀理论设计了净化参数的多因子实验。对实验结果进行逐步回归和线性回归分析，确定了旋转吹气-熔剂法工艺规范：精炼剂加入量0.2%；除气时间10 min；静置时间15 min。
- Abstract:
- Based on the mechanism analysis of floating refinement, it's concluded that the increase of flux quantity can improve degassing effect; however, the excess flux probably results in secondary reaction inclusion in liquid aluminum; the increase of degassing time can improve degassing effect before the equilibrium concentration of H is reached; and H content decreases first and then increases with the prolongation of stewing time. In order to determine the H content in liquid aluminum after purification by rotary blowing-flux method, a multi-factor experiment for purification parameters was designed according to uniform design theory. The rotary blowing-flux process specifications were determined based on the stepwise regression and linear regression analyses of the experimental results: the addition of the refining flux is 0.2%, the degassing time 10 min and stewing time 15 min.
参考文献/References:
[1]铸造有色合金及其熔炼联合编写组. 铸造有色合金及其熔炼[M]. 北京: 国防工业出版社, 1980. [2]董志敏. 铝合金溶液净化技术[J]. 铸造技术, 2000 (6): 13－16. [3]罗启全编著. 铝合金熔炼与铸造[M]. 广州: 广东科技出版社, 2002. [4]中国机械工程学会铸造专业分会. 铸造手册[M]. 北京: 机械工业出版社, 2006. [5]陈谓臣, 黄兴波. 铝合金熔体处理的研究近况[J]. 铸造，2000 (6): 384－386. [6]巫瑞智, 倪红军. 铝熔体吹气除氢净化技术[J]. 铸造技术2003 (3): 166－167. [7]杨长贺. 旋转喷头发法铝液除氢效率的剖析与研讨[J]. 轻合金加工技术, 1995 (2): 5－10. [8]熊艳才, 洪润州. 铝液氢的界面反应过程动力学研究[J].特种铸造及有色合金, 1998 (6): 1－3. [9]顾明浩, 于淼. 航天用低温弹性元件刚度研究[J]. 低温工程, 2006 (6): 52－56. [10]韩冬, 杨合, 张立武, 等. 旋3A21铝合金热处理及旋压温度其组织性能的影响[J]. 固体火箭技术, 2010, 33(2): 225-228.
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备注/Memo
收稿日期：2010-０7-１4；修回日期：2010-0８-12
作者简介： 王琳（1982—），男，工程师，研究领域为材料加工工艺
更新日期/Last Update:
1900-01-01