Industry news_News_SHANGHAI SHANGDIAN Washer Co., Ltd.

Introduction to the difference between circlip and circlip

As a kind of fastener that is widely used in our daily industrial hardware, retaining ring is deeply loved by the public in the industry. It also has an alias called circlip. However, many people often think of circlips and retaining rings as the same thing. In fact, there are still many differences between the two. Let's introduce the difference between a circlip and a retaining ring.

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Introduction to the use and type of gaskets

In the fastener industry, you may have heard of washers more or less, but what is the purpose of washers? What types of washers are there? Let’s take a look at the Haian washer manufacturer!

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A brief introduction to the retaining ring

Retainingringisakindofretainingring,whichisverywidelyusednow.Itislovedbythepublicbecauseofitseasyinstallationandstrongendurance.Sowhatisaresilientretainingring?Howisitinstalled?Let'stakealookwiththemanufacturersofHaianretainingring!Whatisaretainingring?Circlipsareindustrialfastenersthatcanbeusedtofixmatchingcomponentsorassembliestogether.Thecirclipisaroundpartmadeofmetal,whichisinstalledinthegroove(housingorshaft).Youcanuseinternal(housing)circlipsorexternal(shaft)circlips.Asthenameimplies,theinnerretainingringisinstalledinthehousinggroove,andtheouterretainingringisinstalledintheshaftgrooveCirclipsareusedforshaftsandholes.Theirstructuralcharacteristicsareasfollows:Circlipsforshaftsareinstalledontheshaftgrooveandusedforthepositioningandfixingofshaftendparts.Theycanwithstandseverevibrationandimpactloads.,Butneedtotakeanti-loosemeasuresandinstallationpositioning;theholeisinstalledinthecircularholewithanelasticretainingring,whichisusedtofixtheaxialmovementoftheparts.Theouterdiameterofthiskindofretainingringisslightlylargerthanthediameteroftheassemblycircularhole.Thecirclipisanindustrialaccessorythatcansupport,buffer,brake,heightadjustmentandangleadjustment.Theinnerdiameteroftheelasticretainingringfortheshaftisslightlysmallerthanthediameteroftheassemblyshaftwhentheelasticretainingringfortheholeisselected.Thesurfaceandretainingringarefixedtohaveahighercenteringdegree.Currentinstallationmethodofretainingring:1.Mostofthemareinstalledwithcirclipinstallationpliers;2.Simpleinstallationaids;3.Automaticcirclipinstallationmachine.Thedisadvantagesoftheinstallationmethodsofthesecirclips:1.Ifthemanualinstallationisuneven,theelasticretainingringwillbeplasticallydeformed,whichwillcausetheelasticretainingringtofail;2.Complicatedpartscannotbepositioned,andtheproductionefficiencyislow;3.SimpleinstallationaidsareonlysuitableforinstallationThepartsaregenerallynotuniversalandhavelimitations;4.Theautomaticcirclipinstallationmachinehasacomplicatedstructureandahighcost.

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What are the main types of gaskets?

Whatarethemaintypesofgaskets?1.FlatwasherThemainfunctionofflatwashersistodistributebearingsurfacepressure,clampingload,boltsornutsonalargersurfaceareatopreventdamage.Washersaremainlymanufacturedinaccordancewithstandardspecificationsofvarioussizes,materialsandshapes.Flatwashersarethinandflatroundgeneralpurposewasherswithaholeinthemiddle.Theinnerandoutershapesareusuallycircular.Dependingonthefunctionofthegasket,theholeorouterdiametercanbeasymmetrical.Theflatwashersizeisrepresentedbytheshankdiameterofthefastener,wheretheyformpartoftheassembly.2.SquarewashersSquarewashersforconstructionshouldbeusedinsteadofroundwashersfortimberconstructionandconcretefloorapplications;theyareusedwithallfastenersforgreaterloaddistributionandboltingthroughwallsortimber.3.SquareholewasherUsedinwoodworkingandfenceindustriestocombinewheelboltsandbodyscrewswithasquaresectionbelowthebolthead;thewasherislocatedonthesquarebelowthebolthead.4.ConicalwashersTheconicalwasherisdesignedtobeusedinthechannelpart,underthenutwithaconicalflange,sothattheboltassemblycanfitsquarelywhentightened.5.SpringwashersCoilspringwashersprovideanti-vibrationfunction,theyareseparatedbyaringontheringandbentintoaspiralshape,whichmakesthewasherexertanelasticforcebetweentheheadofthefastenerandthebearingsurface,keepingthewasherhardagainstthefaceandtighteningtheboltNutsorthreadedholesproducegreaterfrictionandrotationresistance.Thespringwasherisaleft-handedscrew,allowingthethreadtobetightenedclockwiseintherighthand.Whenaleftrotationmovementisapplied,theraisededgebitesintotheundersideoftheboltornutandthepartfixedtothebolttoresistrotation.Thespringwasherisnoteffectiveforleft-handedthreadsandhardenedsurfaces,andshouldnotbeusedinconjunctionwiththeflatwasherunderthespringwasher,becausethispreventsthespringwasherfrombitingintopartsthatcanresistrotation.Springwashersareproducedinaccordancewithvariousstandards,indicatingthicknessandcross-sectionaldimensions,usuallysquareorrectangularcross-sections.Thepopularspringwashersaresinglecoils,buttheycanalsobeprovidedasdoublecoilwashers.6.RibbedcontactlockwasherWasherswithsurfaceribsandserrationsononeortwoflatsurfacesaredesignedtoengageconnectingmaterialsorboltsornutstochangeelectricalcontactorlockingaction.Anytypeofmaterialthatcanbestamped,pressedorcutcanbemadeintoflatwashers.Washersaremadeofvariousmetalandnon-metalmaterials,includinglowcarbonsteelandhighcarbonsteel,stainlesssteelandsteelalloys,copper-basedmaterials,berylliumcopper,phosphorbronze,titanium,aluminum,fiber,mica,polyesterfilm,rubber,Nylon,PTFEandphenolicresin.Thegasketmaterialisimportantbecausecertainapplicationsrequirespecificmaterialstoensurethatthegasketcanwithstandenvironmentalconditions.Forexample,ifthewasherundergoescyclicloading,strengthisanimportantdesigncriterion,andhigh-alloysteelorspringsteelisrequiredinthecaseofspringsanddiscwashers.Whenthegasketbearsalightloadorasoftsurfacethatmaybedamagedbyametalgasket,usenon-metallicmaterials,etc.

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The role and selection criteria of flat washers

Washersareacommonparttopreventboltsfromlocking.Theyarewidelyused.Generally,wecanseetheshadowofwasherswheretherearefasteners.Oneofthemorecommonlyusedisatypeofwasher-flatwasher.Let'stakealookatthefunctionandselectioncriteriaofflatwashersalongwithHaianwashermanufacturers!Theroleofflatwashers:1.Increasethecontactareabetweenthescrewandthemachine.2.Eliminatethedamageofthespringpadtothesurfaceofthemachinewhenthescrewisunloaded.3.Butmoreoftenitisusedasasupplementarypadorflatpressurepad.Whenused,itmustbe:aspringwasherandaflatwasher,theflatwasherisnexttothesurfaceofthemachine,andthespringisbetweentheflatwasherandthenut.Theflatwasheristoincreasetheforcesurfaceofthescrew.Inordertopreventthescrewsfromloosening,thespringpadsplayacertainamountofbufferprotectionwhensubjectedtoforce.Althoughflatwasherscanbeusedassacrificialpads.Howtochooseaflatwasher?Flatwashersareusedasaparttopreventboltsandnutsfromlocking.Flatwashersareusedwherefastenersareused.Howtochooseasuitableflatwasher?Flatwashersaremainlyusedtoincreasethecontactareabetweenscrewsandsomelargeequipmentandtightenthem.Whenusingflatwashers,itisoftensuitablefornutsandnutstocooperatewitheachother.Whentheflatwashersarestored,theymustbeinthemosteffectiveway.Duringthesealingtime,therearenecessaryimportantcharacteristics:1.Inthecaseofharshenvironment,flatgasketsshouldbesealed.Whenacertaintemperatureandpressureareinoperation,itisnoteasytoleak.2.Whentheflatgasketisconnectedtothecontactsurface,itisnecessarytobetterensurethesealingperformance,justlikethegoodeffect.3.Whenthegasketisunderpressure,theanti-wrinkleabilityshouldbebetterundertheinfluenceoftemperature,otherwisethescrewwillbedamagedandhardgasleakagewilloccur.4.Don'tgetinfectedwhenusingflatwashers.5.Theuseofflatwasherscanbeeasilydisassembled.Thisisthebiggesteffectofchoosingflatwashers.6.Remembertoensurenormaluseattherelativetemperaturewhenusingflatwashers.Inordertobetteruseflatwashers,whenchoosingflatwashers,trytochooseflatwashersmadeofanti-rustandanti-corrosionmaterials,whichnotonlysavestimeandeffort,butalsotheeffectofflatwasherscanbeplayedverywell.

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How does the fastener industry choose raw materials?

SelectionprincipleTheselectionofstainlesssteelmaterialsismainlyconsideredfromthefollowingfiveaspects.1.Requirementsforthemechanicalpropertiesoffastenermaterials,especiallystrength;2.Therequirementsofworkingconditionsonthecorrosionresistanceofmaterials;3.Therequirementsoftheworkingtemperatureontheheatresistanceofthematerial(hightemperaturestrength,oxidationresistance);4.Requirementsformaterialprocessingperformanceintermsofproductiontechnology;5.Otheraspects,suchasweight,price,andpurchasefactors,mustbeconsidered.Aftercomprehensiveandcomprehensiveconsiderationofthesefiveaspects,thegrades,varieties,specificationsandmaterialstandardsofthefastenersarefinallydeterminedAusteniticstainlesssteelThecommonlyusedgradesare302,303,304,and305,whicharetheso-called"18-8"austeniticstainlesssteels.Boththecorrosionresistanceandthemechanicalpropertiesaresimilar.Thestartingpointforselectionistheproductionprocessmethodofthefastener,andthemethoddependsonthesizeandshapeofthefastener,aswellasthequantityofproduction.302typeisusedformachinedscrewsandself-tappingbolts.303typeInordertoimprovethecuttingperformance,asmallamountofsulfurisaddedtothe303typestainlesssteel,whichisusedtoprocessnutswithbarmaterials.304typeissuitableforprocessingfastenersbyhotforgingprocess,suchaslongersizeboltsandlargediameterbolts,whichmaybebeyondthescopeofcoldforgingprocess.305typeissuitableforprocessingfastenersbycoldheadingprocess,suchascoldformingnutsandhexagonalbolts.309typeand310type,theirCrcontentandNicontentarehigherthan18-8typestainlesssteel,suitableforfastenersworkingathightemperature.316and317type,theybothcontainalloyingelementMo,sotheirhightemperaturestrengthandcorrosionresistancearehigherthan18-8typestainlesssteel.321typeand347type,321typecontainsrelativelystablealloyingelementTi,347typecontainsNb,thusimprovingthematerial'sresistancetointergranularcorrosion.Itissuitableforfastenersthatarenotannealedafterweldingorareinserviceat420～1013℃.

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