| 先胀后焊过程中接头残余接触压力的变化 |
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| 引用本文： | 段成红,钱才富.先胀后焊过程中接头残余接触压力的变化[J].压力容器,2006,23(7):27-32. |
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| 作者姓名： | 段成红 钱才富 |
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| 作者单位： | 北京化工大学,机电工程学院,北京,100029 |
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| 摘 要： | 建立了胀焊结合的管子与管板连接接头的三维有限元模型，研究了液压胀接接头在焊接热影响过程中管子与管板接触面上的残余接触压力的分布和变化。结果发现，受焊接热影响后，胀接残余接触压力经过了消失和逐渐恢复的过程，其数值最终几乎不变。
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| 关 键 词： | 胀焊接头 有限元分析 残余接触压力 |
| 文章编号： | 1001-4837（2006）07-0027-06 |
| 收稿时间： | 2005-09-30 |
| 修稿时间： | 2005-09-302006-02-12 |
Changes of Residual Contact Pressure During Welding after Expanding |
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| DUAN Cheng-hong,QIAN Cai-fu.Changes of Residual Contact Pressure During Welding after Expanding[J].Pressure Vessel Technology,2006,23(7):27-32. |
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| Authors: | DUAN Cheng-hong QIAN Cai-fu |
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| Affiliation: | Collage of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | A 3 - D finite element model was established for the combined tube - to - tubesheet joint which is expanded first and then welded. Effects of welding on the residual contact pressure between the contact surface of tube and tubesheet of hydraulically expanded joints were studied. Results show that the residual contact pressure almost disappeared during welding process and gradually regained with the cooling of the weld. The final values were almost the same with those before welding. |
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| Keywords: | expanded and welded joint finite element analysis residual contact pressure |
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