柔性石墨金属复合结构密封垫片研究进展  

Progress in Research on Flexible Graphite Metal Composite Structure Sealing Gasket

作　　者：樊志斌 张雷 袁奕琳 李宁波 戴宵宵 吕贤明 贾飞 FAN Zhibin;ZHANG Lei;YUAN Yilin;LI Ningbo;DAI Xiaoxiao;LYU Xianming;JIA Fei(China Academy of Machinery Ningbo Academy of Intelligent Machine Tool Co.Ltd.,Ningbo 315700,China;Southern Center,China General Research Institute of Mechanical Sciences.,Ningbo 315700,China;Ningbo Yitiandi Xinyuan Sealing Technology Co.,Ltd.,Ningbo 315700,China)

机构地区：[1]中国机械总院集团宁波智能机床研究院有限公司,浙江宁波315700 [2]中国机械科学研究总院南方中心,浙江宁波315700 [3]宁波易天地信远密封技术有限公司,浙江宁波315700

出　　处：《化工管理》2024年第2期110-112,共3页Chemical Engineering Management

基　　金：宁波市科技创新2025重大专项暨“246”产业集群发展支撑引领计划项目(2020Z111)。

摘　　要：新型碳材料中,柔性石墨因其高耐候、抗辐射、低膨胀和良好的自润滑性而得到广泛应用,被誉为“当代密封之王”。但由于柔性石墨的多孔性、吸油性、低强度等缺点导致服役中易出现压溃、散架状况,严重制约了该材料的应用推广。柔性石墨复合材料兼具石墨和金属两者的优异性能,能够形成多道密封,逐渐成为石油、化工、汽车、核电等领域极端工况下密封材料的首选材料。文章分析了复合垫片的结构形式以及构成情况,并对石墨密封件在石化、核电等领域的应用前景和发展趋势进行了展望。Among the new carbon materials,flexible graphite is widely used because of its high weather resistance,radiation resistance,low expansion and good self-lubrication,and is known as the“king of contemporary sealing”.However,due to the shortcomings of flexible graphite such as porosity,oil absorption and low strength,it is easy to collapse and fall apart in service,which seriously restricts the application and promotion of this material.Flexible graphite composites have the excellent properties of both graphite and metal,and can form multi-channel seals,and have gradually become the preferred materials for sealing materials under extreme conditions in petroleum,chemical,automotive,nuclear power and other f ields.In this paper,the structure and composition of composite gaskets are analyzed,and the application prospect and development trend of graphite seals in petrochemical,nuclear power and other f ields are prospected.

关 键 词：密封性能 石墨 金属缠绕垫片 波齿复合垫片 金属接触型石墨垫片 

分 类 号：TG147[一般工业技术—材料科学与工程]