镍钛合金双层波纹石墨复合垫片的设计与参数优化  

Design and Parameter Optimization of Ni-Ti Alloy Double-Layer Corrugated Graphite Composite Gasket

作　　者：邓文飞 孔慈宇 张斌[2] 谭伟[3] 胡朝斌[2] 韩志达[4] DENG Wenfei;KONG Ciyu;ZHANG Bin;TAN Wei;HU Chaobin;HAN Zhida(College of Mechanical and Electrical Engineering,Soochow University,Suzhou Jiangsu 215000,China;College of Mechanical Engineering,Changshu Institute of Technology,Changshu Jiangsu 215500,China;Jiangsu Province Special Equipment Safety Supervision Inspection Institute Changshu Branch,Changshu Jiangsu 215500,China;College of Physics and Electronic Engineering,Changshu Institute of Technology,Changshu Jiangsu 215500,China)

机构地区：[1]苏州大学机电工程学院,江苏苏州215000 [2]常熟理工学院机械工程学院,江苏常熟215500 [3]江苏省特种设备安全监督检验研究院常熟分院,江苏常熟215500 [4]常熟理工学院物理与电子工程学院,江苏常熟215500

出　　处：《润滑与密封》2020年第5期102-107,共6页Lubrication Engineering

基　　金：国家自然科学基金项目(51705037,51605046);江苏省六大高峰人才项目(GDZB-061);江苏省特种设备安全监督检验研究院科技项目(KJ(Y)2016001).

摘　　要：针对反应釜的高腐蚀性、恒温以及多振动等工况,设计一种新型镍钛合金双层波纹石墨复合垫片,其骨架材料为镍钛合金,结构为双层式波纹结构,在双层骨架的内外侧填充石墨层。选取波纹数、骨架厚度和波纹幅值等参数进行正交优化设计,采用ANSYS软件模拟该垫片在一定波纹数(4~6个)、骨架厚度(0.3~0.5 mm)和波纹幅值(0.3~0.5 mm)时的变形特征。结果表明:新型垫片的最佳回弹率为93.84%,对应的波纹数、骨架厚度和波纹幅值为5个、0.5 mm和0.3 mm。与不锈钢双层波纹石墨复合垫片和不锈钢单层波纹石墨复合垫片对比表明:镍钛合金双层波纹石墨复合垫片具有最好的回弹性能。A new type of nickel-titanium alloy double-layer corrugated graphite composite gasket was designed according to the conditions of high corrosion,constant temperature and multi-vibration of the reactor.The new composite gasket uses nickel-titanium alloy as the skeleton material,and adopts a double-layer corrugated skeleton structure where the graphite medium is filled.The orthogonal optimization design was carried out by choosing the parameters of corrugation number,skeleton thickness and corrugation amplitude.The deformation characteristics of the gasket with certain corrugation number(from 4 to 6),skeleton thickness(from 0.3 mm to 0.5 mm) and amplitude corrugation(from 0.3 mm to 0.5 mm) were simulated by ANSYS software.The results show that the optimal resilience rate of the new gasket is 93.84%,and the corresponding corrugation number,skeleton thickness and corrugation amplitude are 5,0.5 mm and 0.3 mm.Compared with stainless steel double-layer corrugated graphite composite gasket and stainless steel single-layer corrugated graphite composite gasket,the nickel-titanium alloy double-layer corrugated graphite composite gasket has the best resilience.

关 键 词：石墨复合垫片 压缩回弹 镍钛合金 正交设计 

分 类 号：TB42[一般工业技术]