Kev Ua Yeeb Yam Cov Hlau Stainless Bolts

Stainless Hlau Boltsyog ib lo lus dav dav. Hauv kab lus no, stainless hlau bolts suav nrog feem ntau stainless hlau fasteners xws li hexagon ntsaws lub pob tw, thiab cov txiv ntseej. Tom qab ntau lawm, stainless hlau fasteners tsis xav tau ncej- kev kho mob kom hloov kho cov khoom siv cua sov (tsis zoo li cov hlau biolbon). Feem ntau, lawv tuaj yeem siv tau tom qab tu saum npoo tsuas yog siv tau yog tias xav tau ntxiv corrosion tiv taus). Yog li ntawd, lawv cov yam ntxwv ua tau zoo yog qhov tseem ceeb ntawm kev ua tau zoo ntawm cov ntaub ntawv siv.

Piv nrog rau tib neeg cov pa roj carbon hlau, stainless hlau bolts muaj ib qho dav kub daim ntawv thov ntau ntau (HRC) feem ntau yog qis dua li cov hlau bolts. Cov tub ntxhais tseem ceeb ntawm stainless hlau bolts yog corrosion tsis kam - Lawv tuaj yeem nyob twj ywm ntawm oxidation hauv cov huab cua nthuav dav rau kaum daus las. Txawm tias ntawm cov kub siab, lawv tuaj yeem ua haujlwm ib txwm tsis muaj kev hloov pauv ntawm lub zog lossis lub zog torque. Yog tias kev kho mob passivation yog ua rau ntawm cov hlau stainless bolts tom qab ntau lawm, lawv lub siab {} kub kuj thiab corrosion kuj yuav txhim kho ntxiv.

Stainless hlau bolts muaj cov cuab yeej muaj peev xwm hu ua kev tiv thaiv. Hos carbon steel bolts kuj muaj resistivity, qhov resistivity ntawm stainless hlau bolts ntawm tib qho kev tshwj xeeb yog ntau tshaj tsib zaug ntawmCarbon Hlau BoltsCov. Kev ua txhaum yog ze rau cov coefficient ntawm thermal expansion ntawm bolts: nyob rau hauv ib txwm muaj tshwm sim, qhov loj dua ntawm cov coeffient ntawm thermal nthuav ntawm ib feem. Rau cov pa roj carbon hlau bolts nrog cov kub tiv thaiv, lawv cov coeffic kev nthuav dav nce ntxiv, ua rau lawv tsis siv tau vim yog cov kev hloov pauv tau ntau yam. Nyob rau hauv sib piv, stainless hlau bolts- nrog kev hloov pauv me me ntawm cov khoom siv hluav taws xob ntau dua li qhov kub thiab txias thiab muaj peev xwm tswj tau qhov tseem ceeb rau lawv qhov siab heev rau lawv qhov siab heev- kub tsis kam.

Cov kws kho mob tshuab hluav taws xob ntawm cov hlau stainless bolts yog qhov sib cais. Txawm hais tias lawv tsis tuaj yeem phim high- Lub zog Bolts ntawm qib 10.9 lossis siab dua, lawv tsis yog qis dua rau Bolts ntawm qib 8.8 lossis qis dua. Tsuas yog cov kev ua haujlwm tshwj xeeb, stainless hlau bolts tuaj yeem ua tau raws li cov ntawv thov yuav tsum tau ua. Kuj tseem muaj cov ntaub ntawv hlau stainless uas muaj lub zog siab dua (xws li siv cov ntaub ntawv qub (xws li siv cov khoom siv zoo li no ua rau cov nqi ntau thiab txo tus nqi {6- ua hauj lwm zoo. Nrog rau kev txhim kho thev naus laus zis, lub zog ntawm cov siv cov hlau uas siv tau feem ntau siv cov hlau steel hlau tau xav tias yuav nce ntxiv.

Cov neeg yuav khoom feem ntau nug txog lub zog ntawm cov hlau steel bolts. Nruj me ntsis kev hais lus, stainless hlau bolts ua raws li cov kev kawm qib teev hauv GB / T 3098.6Fasteners {{0 {}} i} cov khoom siv neeg kho tshuab-} stainless hlau bolts, screws thiab studs(piv txwv li, A2 {{{{}}}}}}}}} 70, A4-80), ntau dua li "XX cov kab ke siv rau cov roj teeb carbon. Rau cov kev sib piv ntawm cov pa roj teeb qib: 304 steel steel bolts (sib piv rau kev ua tau zoo ANT 6.8, thiab 316 Stainless Hlau Bolts (piv rau kev ua tau zoo A4-80) yog ze rau qib 8.8. Txawm li cas los xij, qhov no tsuas yog ntxhib siv rau-lawv cov neeg kho tshuab yuav tsum raug kuaj los ntawm cov cuab yeej tshaj lij nyob rau hauv raws li cov qauv, thiab tsis tuaj yeem txiav txim siab raws li cov kev sib piv no.

Qhov sib txawv tseem ceeb hauv cov neeg kho tshuab nruab nrab ntawm cov khoom sib txawv ntawm cov ntaub ntawv sib txawv feem ntau vim yog cov ntsiab lus sib txawv thiab muaj pes tsawg ntawm cov ntsiab lus hauv cov ntaub ntawv. Thaum ntau cov hlau cov ntsiab lus tau sib xyaw ua ke hauv cov kev sib tw tshwj xeeb, lawv tau tso cov khoom siv nrog cov khoom muaj txiaj ntsig. Noj cov pa roj carbon ua piv txwv, nws yog ib qho yooj yim nyob rau hauv cov ntaub ntawv hlau, thiab nws cov ntsiab lus muaj kev cuam tshuam loj ntawm kev ua tau zoo: feem ntau, siab dua cov ntsiab lus carbon, qhov siab dualub zog ntsia hlau; Txo cov ntsiab lus carbon, qhov ua tau qis dua lub zog. Qhov laj thawj yog vim li cas stainless hlau bolts muaj qis dua lub zog tshaj li siab- Lub zog Bolts feem ntau yog lawv cov ntsiab lus carbon qis. Qhov sib ntxiv ntawm cov ntsiab lus nyob rau hauv cov ntaub ntawv tsis yog kev txiav txim siab, uas muaj cov roj ntsha sib npaug (uas muaj cov hlau bolts Yog tias cov ntsiab lus carbon yog nce qhov muag tsis pom kev, lub zog yuav txhim kho, tab sis xeb tsis kam yuav raug txo qis.

Silicon hauv cov khoom tuaj yeem txhawb cov ferrite, txhim kho lub ntsia liaj qhov rooj lub zog thiab hardness, tab sis nws txo cov khoom siv cov plasticity. Qhov nyiaj tshuav yuav tsum raug tua ntawm kev ua tau zoo thiab kev ua tiav kom ntseeg tau tias muaj kev tsim kho zoo thaum lub sijhawm ntau lawm thaum tsim khoom. Manganese tuaj yeem sib txuas nrog cov leej faj hauv cov khoom siv los ua cov manganese sulfide (MNS). Sulphur nws tus kheej yog insoluble hauv hlau; Yog tias nws ua ke nrog hlau, nws ua cov hlau sulfide (fes), uas yooj yim ua rau kub brittleness kub. Txawm li cas los xij, MNS muaj lub siab melting taw tes thiab ruaj ruaj ruaj khov, uas tuaj yeem txo cov kev tsis zoo ntawm cov txiv lws suav thiab lub zog ntawm bolts. Nws yog pom tseeb tias txhua tus txhais lub luag haujlwm tshwj xeeb hauv cov khoom siv. Hauv cov ntaub ntawv tshiab kev tshawb fawb, cov khoom tseem ceeb ntawm cov khoom siv tsis tuaj yeem hloov los ntawm kev nce lossis txo qis ib qho khoom; Hloov chaw, kev cuam tshuam ntawm txhua qhov kev yuav tsum tau sim ua kom tiav rau thaum kawg tsim kho cov khoom siv cov khoom siv nrog kev ua tau zoo.