低噪音聚脲潤滑脂的研制及摩擦學性能研究.pdf

1、中南大學碩士學位論文低噪音聚脲潤滑脂的研制及摩擦學性能研究姓名：李小紅申請學位級別：碩士專業(yè)：機械設計及理論指導教師：毛大恒符戇20071203中南大學碩士論文ABSTRACTABSTRACTRecentlywiththeincreasingofapplicationofexactrollingbearing，bearing’SshakeandnoisearethoughtmoreandmoreofbypeopleNowexactbea

2、rings’usingconditionsaremoreandmorerigorous，therequirementstolubricatinggreasebecomehigherandhigherwhichmainlyarelonglife、high／lowtemperatureandhigh／lowspeeduseadaptability、lownoiseandSOonPolyureagreaseisconsideredasanew

3、highefficiencygreaseandoneofthelubricatinggreasesthathavethebestdevelopmentforegroundin21thcenturywiththecharactedsticsoflonglife、hi曲temperatureresistance、lownoiseandmultiuseEarlierinthe1990s，withtheureagreasetechnology’

4、SdevelopmenturealownoiselubricatinggreasewasexploitedandwasappliedwidelyMostofthelowlubricatinggreasessoldinmarketarefromtheforeignercountries，andtheonlyseveralhomemadelow—noisegreaseshavetheworsenoisereducingperformance

5、thanthecongenerproductsoverseasPresentlytheresearchesaboutbearing’Snoisecharacteristicandtheexploitationoflow—noiselubricatinggrebehavebeenthepopularresearchdirectionoverseas，butthereisn’tanyresearchreportinourcountryThe

6、refore，researching也enoisecharacteristicofbearinglubricatinggrease、exploitinglownoiserollingbearinglubricatinggreaseandfinallysolvingtheproblemthatthelow—noisegreasesrelyonimportationhaveimportanteconomicandsocietalsignif

7、icanceInordertoexploitlownoisepolyurealubricatinggrease，thefollowingresearchjobshavebeendone1Throughnumerousexperiments，findingabatchformulaandpreparingtechnologythatmakethepolyurealubricatinggreasehavebetternoisereducin

8、gproperties2Preparealownoisepolyurealubricatinggrebe，andcontrastitsnoisepropertiesandtriboloicalpropertieswiththatofotherlubricatinggrebe，resultsshowthatthepreparedpolyurealubricatinggrease’Snoisereducingpropertyandtribo