Kev xaiv cov khoom siv los ua lub hauv paus ntawm kev siv lub hauv paus rau cov fasteners, tshwj xeeb tshaj yog siab - lub zog fasteners siv hauv kev lag luam tsheb. Cov khoom siv feem ntau suav nrog cov hlau tsis muaj - carbon hlau (xws li 08A, 10A), nruab nrab - carbon steel (piv txwv li, qib 35 thiab 45), hlau alloy (xws li 35CrMoA, 42CrMoA, 10B21), thiab stainless hlau (xws li SUS304, SUS316).
Tsav los ntawm qhov kev thov rau lub teeb yuag, daim ntawv thov ntawm siab - lub zog steel, aluminium alloys, titanium alloys, thiab cov ntaub ntawv sib xyaw yog txuas mus ntxiv.
Kev kho cua sov yog ib qho cuab yeej tseem ceeb rau kev tswj cov kev ua tau zoo thiab ua kom lub neej ntev, kev nyab xeeb, thiab kev ntseeg siab -tshwj xeeb tshaj yog rau siab - lub zog bolts ntawm qib 8.8 thiab siab dua. quenching thiab tempering kev kho mob ua kom cov khoom siv lub zog tensile, yield zog, thiab cuam tshuam toughness. Kev tshuaj xyuas metallographic yog ib txoj hauv kev tseem ceeb rau kev ua kom muaj kev kho cua sov zoo; Nws yog siv los txheeb xyuas cov khoom siv sab hauv microstructure thiab xyuas kom meej tias cov tub ntxhais ntawm cov xov txuas ua tiav cov qauv martensitic uas yuav tsum tau ua.
Cov thev naus laus zis kho deg raug xaiv raws li cov khoom lag luam zoo nkauj, kev ua haujlwm ib puag ncig, thiab cov kev cai tiv thaiv corrosion. Cov txheej txheem tseem ceeb suav nrog oxidation, electro-galvanizing, thiab txheej txheej xws li Dacromet, Geomet, thiab electrophoresis. Cov txheej txheem thev naus laus zis tau hloov mus rau eco-tus phooj ywg, siab- cov kev ua tau zoo, suav nrog nano- txheej, qhuav- zaj duab xis lubrication, thiab corrosion heev- cov coatings resistant.
Intelligent manufacturing enables digital traceability nyob rau hauv cov txheej txheem fastening. Los ntawm kev saib xyuas lub zog thiab kev tau txais cov ntaub ntawv, cov tuam txhab tuaj yeem saib xyuas cov xwm txheej sib dhos hauv lub sijhawm tiag tiag - thiab siv cov kev tswj xyuas zoo tshaj plaws nyob rau tag nrho lub neej ntawm kev tsim khoom mus rau kev saib xyuas. Txoj kev sib dhos tseem ceeb suav nrog torque tswj thiab lub zog torque-angle tswj.
Automotive fastening thev naus laus zis tau hloov zuj zus mus rau lub zog siab, lub teeb yuag, kev ua haujlwm zoo, thiab kev txawj ntse. Rau cov tsheb tshiab lub zog, cov txheej txheem kev nyab xeeb ntawm lub roj teeb tau teeb tsa cov qauv tshiab rau kev tiv thaiv -loosing designs thiab sib dhos precision, tsav kev txhim kho cov kev daws teeb meem tshiab xws li ua ntej- siv cov nplaum thiab tiv thaiv - cov qauv kev sib hloov. Puab-memory alloy fasteners tuav lub peev xwm rau daim ntawv thov nyob rau hauv qhov tseem ceeb ntawm lub zog tshiab tsheb vim lawv zoo heev los tiv thaiv-loosing zog.