| 7050铝合金超声半连续铸造试验研究 |
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| 引用本文： | 张雪,李晓谦,张晓明,吴钰. 7050铝合金超声半连续铸造试验研究[J]. 特种铸造及有色合金, 2010, 30(3). DOI: 10.3870/tzzz.2010.03.018 |
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| 作者姓名： | 张雪 李晓谦 张晓明 吴钰 |
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| 作者单位： | 中南大学机电工程学院,现代复杂装备设计与极端制造教育部重点实验室 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目 |
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| 摘 要： | 在7050铝合金半连续铸造过程中引入超声场,试验发现,施加超声后铸锭质量明显提高,晶粒得到细化并向等轴晶发展,气孔减少,抗拉强度增加,裂纹得到抑制。通过分析试验结果发现,超声有改善7050铝合金铸锭质量的作用,这对于7050铝合金大铸锭的工业生产具有一定的理论指导意义。
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| 关 键 词： | 7050铝合金 超声波 除气 细化晶粒 裂纹 |
Semi-continuous Casting 7050 Aluminum Alloy with Ultrasonic Treatment |
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| Zhang Xue,Li Xiaoqian,Zhang Xiaoming,Wu Yu. Semi-continuous Casting 7050 Aluminum Alloy with Ultrasonic Treatment[J]. Special Casting & Nonferrous Alloys, 2010, 30(3). DOI: 10.3870/tzzz.2010.03.018 |
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| Authors: | Zhang Xue Li Xiaoqian Zhang Xiaoming Wu Yu |
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| Affiliation: | Zhang Xue,Li Xiaoqian,Zhang Xiaoming,Wu Yu(Key Laboratory of Modern Complex Equipment Design , Extreme Manufacturing,Ministry of Education,College of Mechanical , Electrical Engineering,Central South University,Changsha,China) |
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| Abstract: | Ultrasonic field was introduced into 7050 aluminum alloy melt in the semi-continuous casting to investigate effects of ultrasonic treatment on the quality of 7050 ingot.The results reveal that quality of 7050 ingot is greatly improved by introducing ultrasonic field,in which grain size is refined and is equiaxed with decreasing in gas hole,leading to increasing in tensile strength and restraining in crack.The experimental results verify that ultrasonic filed can effectively improve the quality of 7050 alumi... |
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| Keywords: | 7050 Aluminum Alloy Ultrasonic Field Degassing Grain Refinement Crack |
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