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《Pressure Vessel Technology》 2011-04
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Analysis on Fracture Cause of NG Pipe Flange

WU Xing-hua(Shanghai Institute of Special Equipment Inspection & Technical Research,Shanghai 200062,China)  
The fracture cause of standard flange was discussed,which material is ASTM A350 Gr.LF2,Class 1,happened in the pneumatic test.The visual examination,mechanical property testing,SEM analysis,metallographic analysis,process testing,ultrasonic examination and fracture toughness measure etc.were adopted to analyze the fracture cause thoroughly and syntheticly.The main reason of the accident is embrittlement.Several suggestions were gave to prevent accident occurred again.
【CateGory Index】: TE973
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 CAI Renliang(Institute of Process Equipment and Pressure Vessel,ECUST,?Shanghai?200237,?China);Advances in abroad on technical research of flange design for pressure vessels and piping[J];Petro-chemical Equipment;2003-01
2 WANG Qiang~1,HE Fang~2,CAI Dong-mei~1(1.School of Mechanical Engineering,Jinan University,Jinan 250022,China;2.School of Control Science and Engineering,Jinan University,Jinan 250022,China);Axial Flow of Metal in Radial Rolling Process of Welding Neck Flange[J];Pressure Vessel Technology;2006-05
【Co-citations】
Chinese Journal Full-text Database 3 Hits
1 Han Xiao,Qi Yan(Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China);Structural design and optimization for door flange of a large vacuum vessel[J];Spacecraft Environment Engineering;2010-04
2 Li Jing(Thermal Energy Engineering Research Center of Zhengzhou University, Zhengzhou),Liu Minshan, Dong Qiwu.;Contact analysis of seal ring on new pressure vessel flanges[J];China Petroleum Machinery;2005-10
3 TIAN Yuan,REN Xin,GAO Zeng-liang,ZHANG Kang-da(Zhejiang University of Technology,the MOE Key Laboratory of Mechanical Manufacture and Automation,Institute of Process Equipment and Control Engineering,Hangzhou 310032,China);A Method of Determining the Bolt Preload of Sealing Structure in Pressure Pipe and Vessel[J];Pressure Vessel Technology;2008-03
China Proceedings of conference Full-text Database 1 Hits
1 CAI Ren - liang ( Research Institute of Pressure Equipment and Pressure Vessel, East China University of Science and Technology,Shanghai 200237 , China);Current Status of Flange Design & Gasket Factor for Pressure Vessel[A];[C];2005
【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 CHU Guannan1 HUANG Xiaohui1 WANG Qiang2(1.Mould & Die Engineering Research Center of Shandong University, Jinan;2. School of Mechanical Engineering of Jinan University, Jinan );The Optimization of Blank Section in Precision Rolling of Big Caliber Flange[J];Shandong Machinery;2005-01
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