| 连铸钢板坯凝固壳横截面变形与内部裂纹的关系 |
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| 引用本文： | 曾全胜,蒋云云,隋然.连铸钢板坯凝固壳横截面变形与内部裂纹的关系[J].理化检验(物理分册),2003,39(6):290-294. |
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| 作者姓名： | 曾全胜 蒋云云 隋然 |
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| 作者单位： | 1. 长沙工业学校,长沙 410014
2. 湖南出入境检验检疫局,长沙 410007 |
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| 摘 要： | 对实际观察到的连铸钢板坯拉出结晶器时的横截面形状与最终形成的内部裂纹进行了理论分析，找到了凝固壳横截面形状变化与内部裂纹的形成及种类之间的因果关系及规律性，为预防连铸钢板坯内部裂纹提供了理论依据。同时对YB／T4003-1991标准中的有关问题进行了讨论，并从生产工艺角度概述了影响连铸钢板坯内部裂纹的各种因素。
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| 关 键 词： | 连铸钢板坯 凝固壳 横截面变形 内部裂纹 拉应力 中心裂纹 局部凹陷 偏析 三角区分界裂纹 |
| 文章编号： | 1001-4012(2003)06-0290-05 |
| 修稿时间： | 2002年10月10 |
RELATIONSHIP BETWEEN DEFORMATION OF CROSS SECTION OF COAGULATING SHELL AND INTERNAL CRACKS IN CONTINUOUS CASTING STEEL SLAB |
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| ZENG Quan-sheng,JIANG Yun-yun.RELATIONSHIP BETWEEN DEFORMATION OF CROSS SECTION OF COAGULATING SHELL AND INTERNAL CRACKS IN CONTINUOUS CASTING STEEL SLAB[J].Physical Testing and Chemical Analysis Part A:Physical Testing,2003,39(6):290-294. |
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| Authors: | ZENG Quan-sheng JIANG Yun-yun |
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| Abstract: | True shapes of cross section of continuous casting steel slab in the time that slab is just pulled out of crystallizer and formed finally internal cracks are analysed in theory. The relationships and its law between deformation of cross section of coagulating shell and internal cracks are found. It is important to propose the theory basis for preusention of internal cracks. Train of thought is clear and systematic. For these reason, inadeguacys and misunderstanding in standard YB/T 4003-1991 in effect are indicated. Meanwhile, influence factors on internal cracks are summarized from productive technology. |
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| Keywords: | Continuous casting steel slab Internal crack Coagulating shell Deformation Law |
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