流体机械2012，Vol.40Issue(5)：1-5,20,6.DOI:10.3969/j.issn.1005-0329.2012.05.001
核主泵备用机械密封材料的摩擦性能研究
Study on Frictional Performance of Mechanical Seal Spare Material Used for Nuclear Coolant Pump
摘要
Abstract
It was studied that the effection of load and velocity on the frictional performance of mechanical sea] material used for nuclear coolant pump; sintered pressureless bonded SiC (WNV2) and graphite -added silicon carhide (CHV1), sintered reaction bonded SiC (Ft) and graphite - added silicon carhide ( R2), and graphite( MSMG) using Fairs - 1506 triho - machine. The morphology of ihe worn surfaces was observed using scanning electron microscopy (SEM) and ibe damage features were characterized. The results revealed that small holes in silicon carbide and graphite contain more fluid medias under high load, so the friction coefficient decreases with increasing applied load. Velocity affects friction force through the influence of temperature which changes the properties of surface. Mechanical properties of silicon carbide and graphite change little under a witle range of temperature, so the friction coefficient remains the same with increasing velocity.关键词
核主泵/碳化硅/石墨/摩擦学性能/机械密封Key words
uclear coolant pump/ silicon carbide/ graphite/ frictional performance/ mechanical seal分类
机械制造引用本文复制引用
赵星宇,刘莹,温庆丰,王玉明..核主泵备用机械密封材料的摩擦性能研究[J].流体机械,2012,40(5):1-5,20,6.基金项目
国家重点基础研究发展计划(973计划)"核主泵制造的关键科学问题"(2009CB724304) （973计划）
国家自然科学基金"基于流固热耦合的高温高压动压机械密封机理研究"(50975157) （50975157）
