| 不锈钢连铸坯表面缺陷与对策 |
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| 引用本文： | 王文学,王雨,迟景灏.不锈钢连铸坯表面缺陷与对策[J].钢铁钒钛,2006,27(3):63-68. |
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| 作者姓名： | 王文学 王雨 迟景灏 |
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| 作者单位： | 重庆大学材料科学与工程学院,重庆,400044 |
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| 基金项目： | 国家自然科学基金
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河北省自然科学基金 |
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| 摘 要： | 针对不锈钢中镍、铬、钛等合金元素的作用,分析了不锈钢的组成、凝固特征、高温热性能、力学性能与普碳钢的差异以及不锈钢连铸坯表面凹陷、裂纹、夹渣等表面缺陷产生的机理.重点阐述了钢水洁净度、浇铸温度、保护渣性能、结晶器振动以及液面控制等连铸工艺对表面质量的影响.结合0Cr18Ni9、2Cr13以及钛不锈钢实际生产情况,提出解决铸坯表面凹陷、裂纹、夹渣及不易除掉的深振痕等缺陷的措施与对策.
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| 关 键 词： | 不锈钢连铸 凹陷 裂纹 夹渣 钢水洁净度 浇铸温度 保护渣 |
| 文章编号： | 1004-7638(2006)03-0063-05 |
| 收稿时间： | 2006-02-27 |
| 修稿时间： | 2006年2月27日 |
Surface Defects and Control Measures of Stainless Steel Billet |
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| Wang Wenxue,Wang Yu,Chi Jinghao.Surface Defects and Control Measures of Stainless Steel Billet[J].Iron Steel Vanadium Titanium,2006,27(3):63-68. |
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| Authors: | Wang Wenxue Wang Yu Chi Jinghao |
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| Affiliation: | College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China |
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| Abstract: | The differences of stainless steel and carbon steel were discussed in component, solidification character, performance under high temperature based on the function of Ni], Cr], Ti] in stainless steel. The mechanism of major defects on stainless steel billet was investigated, which included surface depression, crack, slag inclusion. The effect of molten steel purity, casting temperature, performance of protecting slag, oscillation and liquid level control of mold in continuous casting on surface defect was studied importantly. Combining practical production of 0Crl8Ni9, 2Crl3 and Ti-stainless steel, the measures against depression, crack, slag inclusion and deep oscillation mark which can't be smoothed easily are put forward. |
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| Keywords: | stainless steel continuous casting depression crack slag inclusion purity of molten steel casting temperature protecting slag |
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