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Analysis on the Causes of Nonconformity in Ultrasonic Flaw Detection for X52 Pipeline Steel
Author(s): 
Pages: 7-10
Year: Issue:  6
Journal: WIDE AND HEAVY PLATE

Keyword:  管线钢超声波探伤精炼改进措施;
Abstract: 管线钢是厚板产品中重要的一类,X52管线钢按正常工艺浇注、加热和轧制,其超声波探伤时出现批量不合格钢板.采用低倍、金相、扫描电镜等分析了探伤不合格的原因,证实钢中存在钙铝酸盐和硫化钙的大型复合夹杂,是导致探伤不合格的主要原因.根据分析检测结果,提出了相应的工艺改进措施.
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