不锈钢与铝合金材料之间密封用O形环性能分析  

Seal Performance Analysis of O-Ring Between Stainless Steel and Aluminum Alloy

作　　者：刘声[1] 盛选禹[2] 周丹[2] 

机构地区：[1]大庆石油学院秦皇岛分院,河北秦皇岛066004 [2]清华大学核能与新能源技术研究院,北京100084

出　　处：《原子能科学技术》2009年第2期157-161,共5页Atomic Energy Science and Technology

摘　　要：运用有限元分析软件，对不锈钢与铝合金法兰之间的O形环密封进行了分析。分析中考虑了材料的弹塑性变形。分析表明：对于声5mm×0．5mm规格的预紧型不锈钢O形密封环，10％～20％的压缩量下的密封性能较佳，密封宽度0．2～0．3mm，接触压力80～120MPa，预紧比压100～130N／mm，这与0形环的设计压扁力120N／mm较为吻合。Using finite element computed program, O-ring seal performance by using flanges of stainless steel and aluminum alloy was analyzed. The elasto-plastic strain was considered in the finite element analysis. The calculated results show, for Ф5 mm × 0.5 mm pre-tightened stainless steel O-ring, it has the best sealing capability when the compression ratio range is in the region of 10%-20%. The seal width is 0.2-0. 3 mm, and the contact pressure is 80-120 MPa. The sealing pressure ratio is in the region of 100-130 N/mm, which agrees well with the design pressure force 120 N/mm.

关 键 词：O形环 密封 弹塑性接触 

分 类 号：TB42[一般工业技术] TL341[核科学技术—核技术及应用]