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罗志昌, 姚钦, 田燕, 张伟明, 郎毅, 侯丽. HQ-70钢冷裂敏感性的研究[J]. 焊接学报, 1990, (3): 169-174.
引用本文: 罗志昌, 姚钦, 田燕, 张伟明, 郎毅, 侯丽. HQ-70钢冷裂敏感性的研究[J]. 焊接学报, 1990, (3): 169-174.
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Luo Zhichang, Yao Qin Associat, Tian Yan, Chang Weiming, Lang Yi, Hou Li. STUDY OF COLD CRACKING SUSCEPTIBILITY OF HQ-70 STEEL[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1990, (3): 169-174.
Citation: Luo Zhichang, Yao Qin Associat, Tian Yan, Chang Weiming, Lang Yi, Hou Li. STUDY OF COLD CRACKING SUSCEPTIBILITY OF HQ-70 STEEL[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1990, (3): 169-174.
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HQ-70钢冷裂敏感性的研究

STUDY OF COLD CRACKING SUSCEPTIBILITY OF HQ-70 STEEL

    摘要
  • 摘要: 采用铁研试验及插销试验法对HQ-70钢的冷裂敏感性进行了研究,绘制了该钢的冷裂图,并对其冷裂敏感性作了评价.推荐该钢防止冷裂的安全预热温度为125℃。

     

    Abstract: The cold cracking susceptibility of HQ-70 steel was studied by use of the TEKKEN test and Implant test.The cold cracking diagrams of this steel were drawn,and its susceptibility to cotd clacking was evaluated.It is suggested that the safe preheating temperature for avoiding the emergence of cold crack is 125℃.

     

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