| 管线钢板亚表面隐蔽式裂纹缺陷成因分析 |
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| 引用本文： | 张鹏远,王晓峰,高玉明,马慧霞,庞兆夫.管线钢板亚表面隐蔽式裂纹缺陷成因分析[J].鞍钢技术,2010(6):23-26,52. |
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| 作者姓名： | 张鹏远 王晓峰 高玉明 马慧霞 庞兆夫 |
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| 作者单位： | 鞍钢股份有限公司技术中心,辽宁,鞍山,114009;鞍钢股份有限公司技术中心,辽宁,鞍山,114009;鞍钢股份有限公司技术中心,辽宁,鞍山,114009;鞍钢股份有限公司技术中心,辽宁,鞍山,114009;鞍钢股份有限公司技术中心,辽宁,鞍山,114009 |
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| 摘 要： | 采用喷砂、着色探伤、冷弯、阶梯式刨削及高、低倍金相检验分析方法,研究了两种规格管线钢板受力后表面所产生的板条状翘皮裂纹缺陷（卷板）和开口呈撕裂状纵向裂纹缺陷（平板）的形成原因。结果表明,两种规格钢板受力后不同的表面缺陷同属于一种缺陷的不同表现形式,受力后表面缺陷形成的主要原因是铸坯皮下气孔遗传所致。
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| 关 键 词： | 钢板 亚表面 隐蔽式裂纹 |
Analysis on Cause of Concealed Cracks on Subsurface of Pipeline Steel Plate |
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| Zhang Pengyuan,Wang Xiaofeng,Gao Yuming,Ma Huixia,Pang Zhaofu.Analysis on Cause of Concealed Cracks on Subsurface of Pipeline Steel Plate[J].Aisc Techniques,2010(6):23-26,52. |
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| Authors: | Zhang Pengyuan Wang Xiaofeng Gao Yuming Ma Huixia Pang Zhaofu |
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| Affiliation: | Zhang Pengyuan,Wang Xiaofeng,Gao Yuming,Ma Huixia,Pang Zhaofu(Technology Center of Angang Steel Co.,Ltd.,Anshan 114009,Liaoning,China) |
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| Abstract: | Lath-shaped seamed cracking defects(coiled steel plates) and tearing longitudinal cracking defects(flat steel plates) on surface of two different steel plates after forced are investigated by blasting,penetrant-dye method,cold-bending,stepped chipping and macrographic and micrographic examinations.The results show that the surface defects above-mentioned belong to the same type of defects with different indicating appearances which are caused by the skin pinholes inherited from casting billets. |
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| Keywords: | steel plate subsurface concealed crack |
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