金属与金属接触型石墨密封垫片高温力学性能的试验研究  

Experimental Study on Mechanical Properties of Graphite Sealing Gasket with Metal to Metal Contact Type at High Temperatures

作　　者：范淑玲[1] 章兰珠[1] 林剑红 徐丹丹 蔡仁良[1] 刘雁[1] 

机构地区：[1]华东理工大学承压系统与安全教育部重点实验室,上海200237 [2]宁波易天地信远密封技术有限公司,浙江宁波315021

出　　处：《压力容器》2013年第4期1-7,共7页Pressure Vessel Technology

基　　金：国家自然科学基金(51275171);教育部高校基本科研业务费探索研究专项基金;华东理工大学承压系统与安全教育部重点实验室开放基金

摘　　要：研究了金属与金属接触型石墨密封垫片在高温下的力学性能,包括压缩性能、回弹性能和蠕变松弛性能。根据试验结果获得了表征石墨垫片力学性能的拟合曲线和曲线方程,同时得到了石墨垫片在各温度下发生金属与金属接触时对应的接触应力。试验结果表明,温度影响石墨密封垫片的力学性能和接触应力。Mechanical properties of graphite sealing gasket with metal to metal contact type at high tem- peratures were studied, which contained compression, resilience and creep relaxation properties. According to test results, the fitting curves and equations characterizing mechanical properties of graphite sealing gas- ket were obtained, and the contact stress happened metal to metal contact rightly was gotten. Test results showed that the mechanical properties and contact stress of graphite sealing gasket were affected by the temperature.

关 键 词：石墨密封垫片 金属与金属接触 力学性能 接触应力 温度 

分 类 号：TH136[机械工程—机械制造及自动化] TB743[一般工业技术—材料科学与工程]