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Vim li cas zinc plating tsis pom zoo rau cov bolts muaj zog? Thiab dab tsi lwm txoj kev tuaj yeem siv tau? Tiv thaiv bolts thiab screws tiv thaiv corrosion tsis cuam tshuam lub zog lossis kev nyab xeeb.
2026-05-12 IB
Thaum engineers qhia muaj zog bolts (Qib 10.9, 12.9, lossis sib npaug ASTM A325 / A490) rau kev sib txuas ntawm cov qauv, lawv xav tias qhov kev ua haujlwm siab tshaj plaws. Tab sis thaum muaj kev tiv thaiv corrosion kuj yuav tsum tau, lub neej ntawd instinct yog feem ntau yooj yim qhia zinc galvanizing. Qhov kev xaiv ntawd tuaj yeem ua rau muaj kev phom sij.
Qhov teeb meem yog qhov tshwm sim hu ua hydrogen embrittlement - hom uas ntsiag to tsis ua haujlwm uas tuaj yeem ua rau cov ntsia hlau tawg yam tsis muaj kev ceeb toom, hnub lossis txawm lub lis piam tom qab kev teeb tsa. Nov yog yam koj yuav tsum paub, thiab qhov twg anti-corrosion daws muaj kev nyab xeeb rau high-tensile fasteners.
Qhov Tsis Muaj Kev Nyab Xeeb: Hydrogen Embrittlement
Thaum lub sij hawm txheej txheem electroplating, atomic hydrogen yog generated raws li ib tug byproduct. Thaum bolts nrog lub zog tensile siab tshaj 1,000 MPa (hardness> 320 HV) nqus cov hydrogen rau hauv lawv cov hlau lattice, qhov tshwm sim yog poob ntawm ductility. Lub ntsia liaj qhov rooj yuav dhau txhua qhov kev soj ntsuam zoo, lub zog kom raug ntawm qhov chaw, thiab tom qab ntawd poob dheev nyob rau hauv ib txwm load.
Qhov kev ncua qeeb no - nrog xoom yas deformation thiab tsis pom kev ceeb toom - ua rau hydrogen embrittlement yog ib qho kev pheej hmoo loj tshaj plaws hauv kev tsim vaj tsev. Rau lub qhov (socket head cap) screws, hex bolts, thiab lwm yam qib siab fasteners siv nyob rau hauv kev nyab xeeb-tseem ceeb daim ntaub ntawv (bridges, cua turbines, automotive suspensions), qhov tshwm sim yuav muaj kev puas tsuaj.
| Qhov Tseeb Tseem Ceeb: Txawm tias tom qab plating ci (hydrogen embrittlement nyem) tsis tuaj yeem lav qhov ua tiav hydrogen tshem tawm hauv Qib 10.9 thiab 12.9 bolts. Qhov kev pheej hmoo yeej tsis poob rau xoom. |
Galvanizing Risk los ntawm Bolt Qib
| Bolt Qib | Tensile zog | HE Risk | Kev pom zoo |
| 8.8 | 800 MPa | Tsawg | Galvanizing tau txais |
| 10.9 | 1,000 MPa | Siab | Siv zinc flake txheej |
| 12.9 | 1,200 MPa | Tseem ceeb | Zinc flake los yog stainless hlau |
Kub-dip galvanizing yog txo qis hydrogen tsawg dua li electroplating, tab sis cov kua qaub pickling ua ntej kev kho mob tseem qhia txog hydrogen. Rau cov ntawv thov kev nyab xeeb siab, nws tsis yog qhov kev xaiv zoo.
Safe Anti-Corrosion Alternatives
Yog li koj yuav tiv thaiv li cas muaj zog bolts thiab ntsia hlau los ntawm xeb thaum galvanizing tawm ntawm lub rooj? Nov yog cov txheej txheem pov thawj:
| 01 Zinc Flake Txheej (Dacromet / Geomet) Applied mechanically - tsis muaj kua qaub da dej, tsis muaj electrolysis, zero hydrogen tiam. Muab 600-1,000+ teev ntsev tsuag tsis kam. Zoo tagnrho rau Qib 10.9 thiab 12.9 bolts, screws, thiab studs. Qhov Zoo Tshaj Plaws |
| 02 Mechanical Zinc Plating Cold-welds zinc particles mus rau qhov chaw fastener yam tsis muaj hluav taws xob tam sim no. Tsis muaj hydrogen txaus ntshai, haum rau high-tensile hex bolts thiab ceev. Tsis muaj Hydrogen Risk |
| 03 Stainless hlau fasteners A316 los yog A4 (316) stainless hlau bolts thiab screws muaj qhov muaj zog tiv thaiv corrosion. Zoo tshaj plaws rau marine, tshuaj, thiab sab nraum zoov ib puag ncig. Premium Solution |
| 04 PTFE / Fluoropolymer Txheej Muab cov tshuaj tiv thaiv zoo heev thiab tsis muaj kev sib txhuam. Feem ntau ua ke nrog zinc underlayer rau txhim khu kev tiv thaiv corrosion ntawm industrial fasteners. Kev siv tshwj xeeb |
“Txoj cai tiv thaiv corrosion tiv thaiv koj cov peev. Tus yuam kev tuaj yeem rhuav tshem nws.”
- FUJINRUI Engineering Team
Xaiv txoj kev daws teeb meem
Thaum xaiv ib qho anti-corrosion kev kho mob rau koj fasteners, xav txog cov xwm txheej no:
- Bolt Qib- Qib 8.8 thiab hauv qab no feem ntau tuaj yeem siv galvanizing. Rau 10.9 thiab siab dua, ib txwm xaiv zinc flake lossis stainless hlau.
- Ib puag ncig- Cov huab cua hauv hiav txwv thiab kev lag luam xav tau ntau dua ntsev cov xuab moos. Geomet txheejthiab stainless hlau bolts excel ntawm no.
- Daim ntawv thov- Automotive, cua zog, thiab cov qauv hlau sib txuas yuav tsum tsis muaj kev pheej hmoo hydrogen. Mechanical plating thiab zinc flake systems yog tus qauv.
- Nqi vs. Performance- Zinc flake coatings (Dacromet, Geomet) muab qhov zoo tshaj plaws sib npaug ntawm corrosion kuj, hydrogen kev nyab xeeb, thiab tus nqi rau feem ntau ntawm hnyav-duty fastenerdaim ntawv thov.
Qhov no txhais tau li cas rau Kev Muag Khoom
Rau cov pab pawg nrhiav thiab cov engineers qhov project, lub takeaway yog qhov tseeb: Tsis txhob galvanizing rau high-strength fasteners. Nco ntsoov qhia cov qib bolt thiab ib puag ncig corrosion, thiab ua haujlwm nrog koj fastener chaw tsim tshuaj paus xaiv ib txheej txheej txheej uas tshem tawm hydrogen embrittlement txaus ntshai.
Ntawm FUJINRUI, peb manufacture anti-corrosion bolts, ntsia hlau, thiab kev cai fasteners nrog Dacromet, Geomet, mechanical zinc, thiab PTFE coatings — haum rau koj daim ntawv thov thiab ib puag ncig yuav tsum tau. Txhua batch raug sim rau ob qho tib si txhua yam muaj zog thiab corrosion kuj ua ntej xa khoom.
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Xav tau Anti-Corrosion Fasteners?
Tau txais daim ntawv pom zoo txheej dawb thiab nqe lus rau koj qhov project. Peb cov engineers teb tsis pub dhau 24 teev.
Hu rau peb pab neeg
