| 14MnNbq钢梁手工定位焊焊材及防冷裂预热温度的确定 |
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| 引用本文： | 焦伟,李连胜,张显辉.14MnNbq钢梁手工定位焊焊材及防冷裂预热温度的确定[J].钢结构,2002,17(5):19-20,51. |
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| 作者姓名： | 焦伟 李连胜 张显辉 |
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| 作者单位： | 哈尔滨焊接研究所,哈尔滨,150081 |
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| 摘 要： | 采用插销冷裂敏感性试验对芜湖长江大桥 14MnNbq钢手工定位焊焊接材料进行选定 ;采用“preheat”软件对手工定位焊防冷裂预热温度进行计算 ;根据计算结果 ,通过铁研试验进一步验证所确定防冷裂预热温度实施的可行性。通过试验为芜湖长江大桥 14MnNbq钢梁焊接工艺的制定奠定基础。
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| 关 键 词： | 14MnNbq钢 冷裂敏感性 预热温度 |
| 修稿时间： | 2002年5月28日 |
SELECTION OF HAND-POSITIONING WELDING MATERIAL FOR 14MnNbq STEEL GIRDER AND DETERMINATION OF PREHEAT TEMPERATURE TO PREVENT COLD-CRACKING |
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| Jiao Wei,Li Liansheng,Zhang Xianhui.SELECTION OF HAND-POSITIONING WELDING MATERIAL FOR 14MnNbq STEEL GIRDER AND DETERMINATION OF PREHEAT TEMPERATURE TO PREVENT COLD-CRACKING[J].Steel Construction,2002,17(5):19-20,51. |
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| Authors: | Jiao Wei Li Liansheng Zhang Xianhui |
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| Affiliation: | Harbin Welding Research Institute Harbin 150081 |
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| Abstract: | A susceptibility test of pin cold-cracking was used to select the hand-positioning welding material for 14MnNbq steel girder of Wuhan Yangtze River Bridge.The preheat temperature to prevent cold-cracking for the hand-positioning welding was also calculated by a "preheat"software,through which a basis was laid for determining the welding procedures of 14MnNbq steel girder for Wuhan Yangtze River Bridge. |
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| Keywords: | MnNbq steel cold-cracking sensitivity preheat temperature |
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