Formation Mechanism and Influencing Factors of Surface Defects in Semi-Continuous Casting Aluminum Alloy

Li Zhimeng; Zuo Yubo; Zhu Qingfeng; Wang Rui; Liu Xudong

doi:10.15980/j.tzzz.2021.01.022

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Formation Mechanism and Influencing Factors of Surface Defects in Semi-Continuous Casting Aluminum Alloy
Vol. 41, Issue 1, Pages: 108-113(2021)
Published： 2021 ，
DOI： 10.15980/j.tzzz.2021.01.022

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[1]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,2021,41(01):108-113.

Li Zhimeng, Zuo Yubo, Zhu Qingfeng, et al. Formation Mechanism and Influencing Factors of Surface Defects in Semi-Continuous Casting Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 41(1):108-113(2021)
[1]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,2021,41(01):108-113. DOI： 10.15980/j.tzzz.2021.01.022.

Li Zhimeng, Zuo Yubo, Zhu Qingfeng, et al. Formation Mechanism and Influencing Factors of Surface Defects in Semi-Continuous Casting Aluminum Alloy. [J]. Special Casting & Nonferrous Alloys 41(1):108-113(2021) DOI： 10.15980/j.tzzz.2021.01.022.

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。

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.