深冲性能的影响
(1. 哈尔滨理工大学 材料科学与工程学院， 哈尔滨 150040；
2. 东北轻合金有限责任公司， 哈尔滨 150060；
3. 东京大学 生产技术研究所， 东京 1538505)
摘 要: 考察了不同冷轧工艺生产的1050H19电站用空调箔的性能， 并结合X射线织构分析和透射电镜微观结构分析结果， 讨论了织构及微观结构对深冲性能的影响。 结果表明： 4种工艺中试样的变形织构均属于典型的Cu型织构, 不存在再结晶的R织构和立方织构组分， 主要织构组分仍为Cu织构， 但取向密度不同， 易开裂者Cu织构的取向密度值达160， 织构较强， 并含有较难变形的织构组分P织构和戈斯织构。 经分析可知，由于减少道次压下率和实施中间停留， 使得铝箔消除了较难变形的织构组分， 减小了Cu取向织构的取向密度， 宏观上表现为深冲开裂倾向的减小，从而改善了铝箔的深冲性能。
关键字: 1050H19铝箔； 微观结构； 织构； 冷轧工艺； 深冲性能
and deep-drawing property of 1050H19
aluminum foils used in air-conditioner
（1. Department of Materials Science and Engineering,
Harbin University of Science and Technology, Harbin 150040, China;
2. North-east Light Alloy Co. Ltd., Harbin 150060, China;
3. Institute of Industry Science, The University of Tokyo,
Tokyo 153-8505, Japan）
Abstract: The property of 1050H19 aluminum foils used in the air-conditioner of electric station by cold rolling-process was studied. Combining with X-ray goniometer and TEM microstructure analysis, the effects of textures and microstructures on deep-drawing properties were discussed. The results show that deforming textures in the specimens using four cold rolling-processes were all typical Cu components, and recrystallized R-texture and Cube-texture do not exist. Cu-texture is still the predominant component but has different orientation densities. The orientation densities of Cu-texture in the specimens being prone to crack can reach 160 and the textures are high, and the samples contain difficult deforming P-texture and Gross-texture. The analysis indicates that with decreasing rate of reduction/rolling-press and the execution of intermediate holding, difficult deforming textures are eliminated, and orientation density of Cu-texture is weakened. Thus, deep-drawing cracking tendency of aluminium foils decreases macroscopically and deep-drawing properties are improved.
Key words: 1050H19 aluminium foils; microstructure; texture;cold rolling-process; deep-drawing property
