| 低合金中厚板探伤不合原因分析及对策 |
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| 引用本文： | 王杰,鞠传华,陈福山,王新刚,乔孟平. 低合金中厚板探伤不合原因分析及对策[J]. 宽厚板, 2009, 15(4): 6-8 |
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| 作者姓名： | 王杰 鞠传华 陈福山 王新刚 乔孟平 |
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| 作者单位： | 济南钢铁股份有限公司;济南钢铁股份有限公司;济南钢铁股份有限公司;济南钢铁股份有限公司;济南钢铁股份有限公司 |
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| 摘 要： | 通过低倍、金相及扫描电镜等手段，对引起低合金中厚板探伤不合的原因进行分析，阐明了铸坯内部中心偏析、夹杂物及微裂纹是导致钢板探伤不合的内在原因，在生产中采取相应措施，可有效提高钢板探伤合格率。
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| 关 键 词： | 低合金中厚板 超声波探伤 偏析 微裂纹 |
Analysis on the Causes of Nonconformity in Ultrasonic Flaw Detection of Low Alloy Medium Steel Plate and Countermeasures to be Taken |
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| Wang Jie,Ju Chuanhua,Chen Fushan,Wang Xingang and Qiao Mengping. Analysis on the Causes of Nonconformity in Ultrasonic Flaw Detection of Low Alloy Medium Steel Plate and Countermeasures to be Taken[J]. Wide and Heavy Plate, 2009, 15(4): 6-8 |
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| Authors: | Wang Jie Ju Chuanhua Chen Fushan Wang Xingang Qiao Mengping |
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| Affiliation: | (Jinan Iron and Steel Co. Ltd) |
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| Abstract: | By using methods of macrostructure examination, microstructure examination and SEM , the causes of the nonconformity in ultrasonic flaw detection of low alloy medium steel plate has been investigated. It is explained that the central segregation , inclusions and microcrack inside the strand are the internal causes of nonconformity in the ultrasonic flaw detection on the steel plate. The conformity ratio of the steel plate ultrasonic flaw detection can be effectively improved by taking relevant measures in production. |
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| Keywords: | Low alloy medium steel plate Ultrasonic flaw detection Segregation Micro- crack |
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