| 半连续铸造铝合金表面缺陷的形成机理及影响因素 |
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| 引用本文： | 李志猛,左玉波,朱庆丰,王睿,刘旭东. 半连续铸造铝合金表面缺陷的形成机理及影响因素[J]. 特种铸造及有色合金, 2021, 0(1): 108-113 |
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| 作者姓名： | 李志猛 左玉波 朱庆丰 王睿 刘旭东 |
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| 作者单位： | 东北大学材料电磁过程研究教育部重点实验室;东北大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(51674078,51374067);中央高校基本科研业务费资助项目(N180913003);辽宁省自然科学基金资助项目(2019-KF-05-03)。 |
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| 摘 要： | 介绍了半连续铸造铝合金锭坯冷隔、皮下偏析层、表面偏析瘤、拉痕等表面缺陷的特点和形成机制。分析了在半连续铸造铝合金锭坯过程中结晶器结构、铸造工艺参数对这些表面缺陷的影响及作用机理。在此基础上总结了提高铸锭表面品质的技术发展和工艺优化方向。
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| 关 键 词： | 铝合金 半连续铸造 铸锭表面质量 表层偏析 |
Formation Mechanism and Influencing Factors of Surface Defects in Semi-Continuous Casting Aluminum Alloy |
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| Li Zhimeng,Zuo Yubo,Zhu Qingfeng,Wang Rui,Liu Xudong. Formation Mechanism and Influencing Factors of Surface Defects in Semi-Continuous Casting Aluminum Alloy[J]. Special Casting & Nonferrous Alloys, 2021, 0(1): 108-113 |
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| Authors: | Li Zhimeng Zuo Yubo Zhu Qingfeng Wang Rui Liu Xudong |
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| Affiliation: | (Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University;College of Materials Science and Engineering,Northeastern University) |
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| Abstract: | The characteristics and formation mechanism of surface defects such as cold shut,surface segregation layer,surface segregation burl and pull marks in semi-continuous casting aluminum alloy ingot were introduced.The effects of mold structure and casting process parameters on the surface defects during semi-continuous casting were analyzed.On this basis,the technical development and process optimization directions to improve ingot surface quality were presented. |
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| Keywords: | Aluminum Alloys Semi-continuous Casting Surface Quality of Ingot Surface Segregation |
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