gasket和washer的差别

1gasket和washer的差别gasket垫片，法兰垫片，设备垫片常用，一般为非标件．j5m9P.I7Dwasher垫圈，螺栓螺母常用，常为标准件．bead垫圈，油缸，气缸，阀门等常用，用于一般机械居多．这两个词我是问老外才弄明白的,特来跟大家分享前面两个图是washer，垫片、垫圈，一般不起密封作用，只是一个垫，后面是gasket也叫垫圈，一般起密封作用的.9K#]!_Pv/l+Q&h3X9m(i$z%A%o9B;i8})^3@3R'b7~\3@+f3\%?1|!_;nj5a&i:O6p$l&m/e2#z.@&q,NX4h!D)@9J5A6\6](@$r9B;Nwasher主要是用于螺纹紧固件，起均布负荷的作用，上面第一张图片属于split型的，还有星形等：（(hardware)有图可参考）%p(X:[8D1e9MAwasherisathinplate(typicallydisk-shaped)withahole(typicallyinthemiddle)thatisnormallyusedtodistributetheloadofathreadedfastener.Otherusesareasaspacer,spring(bellevillewasher,wavewasher),wearpad,preloadindicatingdevice,andlockingdevice.Rubberwashersarealsousedintaps(valves)wheretheyformthesealthatshutsofftheflowofliquidorgas.Rubberorsiliconewashersmayalsobeusedtoreducevibrationwhenfasteningfanstocomputercases.UsuallywashershaveOD(outerdiameter)abouttwicetheirID(innerdiameter).Washersareusuallymetalorplastic.Highqualitycapscrewsrequirehardenedsteelwasherstopreventthelossofpre-loadduetoBrinellingafterthetorqueisapplied.Rubberorfibergasketsusedintapstostoptheflowofwateraresometimesreferredtocolloquiallyaswashers;whiletheymaylooksimilar,however,washersandgasketsareusuallydesignedfordifferentfunctionsandmadedifferently.Washersarealsoimportantforpreventinggalvaniccorrosion,particularlybyinsulatingsteelscrewsfromaluminumsurfaces.;d0r6z4x:c)@7Rgasket对接表面的机械密封，很多仍需要配套的washer来保证密封效果：!_.[;[;wF7j)Q-P3（）Agasketisamechanicalsealthatfillsthespacebetweentwoobjects,generallytopreventleakagebetweenthetwoobjectswhileundercompression.Gasketssavemoneybyallowingless-than-perfectmatingsurfacesonmachinepartswhichcanuseagaskettofillirregularities.Gasketsarecommonlyproducedbycuttingfromsheetmaterials,suchasgasketpaper,rubber,silicone,metal,cork,felt,neoprene,nitrilerubber,fiberglass,oraplasticpolymer(suchaspolychlorotrifluoroethylene).Gasketsforspecificapplicationsmaycontainasbestos.Itisusuallydesirablethatthegasketbemadefromamaterialthatistosomedegreeyieldingsuchthatitisabletodeformandtightlyfillsthespaceitisdesignedfor,includinganyslightirregularities.Manygasketsrequireanapplicationofsealantdirectlytothegasketsurfacetofunctionproperly.washer，一般用在螺栓和螺母中间，主要起紧固作用。Gasket，用在法兰连接，设备筒体连接处，起到密封作用，一般材质较软。