Raws li qhov tseem ceeb tshaj plaws thiab tseem ceeb fasteners hauv kev tsim khoom, cov khoom siv sib dhos, kev tsim kho, thiab kev saib xyuas niaj hnub, cov khoom siv ntawm cov bolts ncaj qha txiav txim siab lawv lub zog, kev tiv thaiv corrosion, siab - kub tsis kam, haum rau ib puag ncig tshwj xeeb, thiab kev pabcuam lub neej. Cov khoom siv ntsia liaj qhov rooj hauv khw feem ntau yog categorized rau carbon steel, stainless hlau, thiab hlau alloy. Bolts ua los ntawm cov ntaub ntawv sib txawv sib txawv hauv kev ua tau zoo, tus nqi, thiab kev siv cov xwm txheej. Kab lus no yuav qhia txog qhov sib txawv tseem ceeb ntawm cov bolts ua los ntawm ntau yam ntaub ntawv los pab koj xaiv qhov kev paub zoo. Yog tias koj xav yuav lossis kho cov khoom fastener, thov koj xav tiv tauj peb txhua lub sijhawm.
Tau txais cov lus hais hauv 24 teev
Cov pa roj carbon steel yog cov khoom siv dav tshaj plaws rau kev lag luam bolts, feem ntau muaj qis -carbon thiab nruab nrab- carbon steel. Nws kuj yog qhov kev xaiv ntau tshaj plaws rau kev siv tshuab dav dav, kev tsim kho, thiab kev txhim kho tsev.
Cov yam ntxwv tseem ceeb
- Tus nqi qis: Cov khoom siv qis thiab cov nqi ua haujlwm ua rau muaj txiaj ntsig zoo tag nrho rau cov nyiaj.
- Qib Strength: Qib sib txawv ntawm lub zog (piv txwv li, Qib 4.8, 8.8, 10.9, 12.9) tuaj yeem ua tiav los ntawm kev kho cua sov. Corrosion Resistance tsis zoo: Nws tuaj yeem xeb, yog li kev kho saum npoo xws li galvanizing, blackening, lossis xim -coated galvanizing feem ntau yuav tsum tau txhim kho xeb.
- Zoo Machinability: Ib qho yooj yim rau tshuab thiab daim ntawv, haum rau kev tsim ntau yam qauv thiab tsis yog -tus qauv bolts.
Daim ntawv thov
Kev siv dav dav - lub hom phiaj hauv kev tsis yog - corrosive ib puag ncig nrog kev ntxhov siab tsawg mus rau nruab nrab, xws li cov qauv hlau hauv kev tsim kho, kev sib dhos cov cuab yeej siv dav dav, cov yeeb nkab txhawb nqa, rooj tog sib dhos, thiab khoom siv hauv tsev.
II. Stainless Hlau Bolts: Corrosion-Resistant, Zoo nkauj txaus nyiam, thiab kav ntev
Stainless hlau boltsfeem ntau yog ua los ntawm 304 thiab 316 stainless hlau. Lawv yog cov kev xaiv tseem ceeb rau kev txhim kho corrosion- cov ntawv siv tiv taus, muab qhov sib npaug ntawm lub zog thiab xeb tsis kam.
1. 304 Stainless Hlau Bolts
Cov Nta Tseem Ceeb: Ib qho dav dav -lub hom phiaj stainless hlau uas tiv thaiv corrosion los ntawm atmospheric raug, dej tshiab, thiab qaug zog acids thiab alkalis. Nws tsis yog- sib nqus thiab muaj zog nruab nrab ntawm chav tsev kub.
Daim ntaub ntawv: General corrosion-cov ntawv siv tiv taus xws li cov tshuab ua zaub mov, khoom siv kho mob, kho vaj tse kho vaj tse, railings sab nraum zoov, cov kav dej thiab cov khoom siv tu cev, thiab cov khoom siv hluav taws xob.
2. 316 Stainless Hlau Bolts
Cov yam ntxwv tseem ceeb: Enriched nrog molybdenum, muab kev tiv thaiv zoo heev rau ntsev tsuag, kua qaub, alkalis, thiab kub kub piv rau 304.
Daim ntawv thov
Marine thiab maritime daim ntaub ntawv, tshuaj ua khoom siv, kev tsim kho ntug hiav txwv dej, seawater kho, thiab corrosive industrial cheeb tsam.
Alloy steel bolts suav nrog cov ntsiab lus alloying xws li chromium, molybdenum, nickel, thiab vanadium rau hauv cov pa roj carbon steel, muab lub zog siab, kub tsis kam, thiab qaug zog. Lawv ua raws li qhov tseem ceeb fasteners rau hnyav- lub luag haujlwm thiab kev ua haujlwm hnyav.
Cov yam ntxwv tseem ceeb
- Lub zog siab heev: Lub zog tensile thiab lub zog tawm los deb tshaj cov pa roj carbon steel thiab cov hlau tsis zoo tib yam, ua rau lawv tiv taus lub zog tensile thiab shear rog.
- High-Tsub Resistance: Haum rau siab - kub, siab - siab, thiab siab - zaus vibration ib puag ncig; resistant rau deformation thiab tawg.
- Yuav tsum tau kho qhov saum npoo: Muaj qhov nruab nrab ntawm kev tiv thaiv corrosion; feem ntau kho nrog galvanization lossis phosphating los txhim kho kev tiv thaiv xeb.
Daim ntawv thov
Hnyav-lub luag haujlwm, siab- kub, thiab siab- kev vibration ib puag ncig xws li tsheb cav, kev tsim kho tshuab, cov khoom siv hluav taws xob cua, pwm, siab - cov kav xa dej siab, kev tsheb ciav hlau, thiab aerospace.
Kev sib piv ntawm Stainless Steel vs. Carbon Steel vs. Alloy Steel
| Khoom | Carbon Steel | Stainless hlau | Hlau alloy |
|---|---|---|---|
| Lub zog | Nruab nrab mus rau siab | Nruab nrab | Siab heev |
| Corrosion Resistance | Tsawg (yuav tsum tau txheej) | Zoo heev | Nruab nrab |
| Nqi | Tsawg | Siab | Nruab nrab mus rau siab |
| Qhov tshwm sim | Dub / Zinc -plated | Nyiaj / Polished | Tsaus |
| Tej kev siv | Kev siv ib puag ncig | Corrosive ib puag ncig | Siab - cov ntawv thov muaj zog |
Cov ntsiab cai tseem ceeb rau xaiv cov khoom siv Bolt
- Xav txog qhov load:Xaiv cov hlau alloy rau hnyav hnyav thiab siab siab. Xaiv cov pa roj carbon steel lossis 304 stainless hlau rau cov qauv thauj khoom.
- Xav txog ib puag ncig:Xaiv 316 stainless hlau rau cov av noo, acidic, alkaline, lossis ntug dej hiav txwv ib puag ncig. Xaiv cov pa roj carbon steel rau kev siv sab hauv tsev.
- Xav txog cov kev xav tau:Xaiv Qib 4.8 lossis 8.8 carbon steel rau kev sib txuas dav dav. Xaiv Qib 10.9 lossis 12.9 alloy steel rau siab - muaj zog sib txuas.
- Xav txog nyiaj txiag:Ua ntej cov pa roj carbon steel rau siab - ntim, dav - cov phiaj xwm siv; hloov mus rau stainless hlau lossis hlau alloy raws li xav tau rau kev ua haujlwm tshwj xeeb.
Cov ntsiab lus
Tsis muaj qhov "zoo" lossis "qhov phem" ntawm cov khoom siv sib txawv; qhov kev xaiv nyob ntawm daim ntawv thov tshwj xeeb. Cov pa roj carbon steel muaj tus nqi siab -kev ua tau zoo, stainless hlau muab kev tiv thaiv corrosion, thiab hlau alloy muab lub zog siab.
Thaum xaiv ib qho, xav txog peb yam tseem ceeb -load loj, ib puag ncig kev ua haujlwm, thiab pob nyiaj siv- txhawm rau txheeb xyuas cov khoom siv ntsia hlau uas haum tshaj plaws. Xaiv txoj cai ntsia liaj qhov rooj ua kom muaj kev nyab xeeb ntawm kev sib txuas thaum tswj cov nqi thiab ncua kev pab cuam lub neej.
