Galvanized steel kaujyog ib yam khoom uas tsim cov zinc tiv thaiv txheej rau saum npoo ntawm cov hlau los ntawm cov txheej txheem galvanizing, uas yog siv los tiv thaiv xeb thiab ncua kev pab cuam lub neej. Raws li cov txheej txheem sib txawv galvanizing, nws feem ntau muab faib ua:
Kub-dip galvanizing (GI, Galvanized Hlau)
Electro{0}}galvanized (EG, Electro-Galvanized)
Galvanized hlau (GA, Galvannealed)
Dab tsi yog galvanized steel kauj siv rau?
Galvanized steel kauj yog xeb- cov ntaub ntawv pov thawj uas npog lub npoo ntawm cov hlau nrog zinc txheej los ntawm kub -dip galvanizing lossis electro- txheej txheem galvanizing. Nws yog siv nyob rau hauv:
Kev tsim kho kev lag luam: siv rau lub ru tsev thiab phab ntsa xim -coated phaj substrates, steel qauv thav duab thiab guardrails, nrog rau cov huab cua muaj zog.
Kev tsim khoom siv hauv tsev: tub yees, tshuab ntxhua khaub ncaws, thiab lwm yam., galvanized thiab tom qab ntawd txau, suav nrog kev tiv thaiv xeb thiab kev zoo nkauj.
Automotive kev lag luam: lub cev structural qhov chaw, roj tso tsheb hlau luam (kub-dip galvanizing) thiab tha xim sab hauv (electro{1}}galvanizing), lub teeb yuag thiab corrosion{2}}resistant.
Cov khoom siv hluav taws xob: cov rooj plaub hauv computer, cov khoom xa khoom, thiab lwm yam., qhov chaw ntawm electro-galvanized ntawv yog du thiab tsim nyog rau kev ua tiav.
Puas yog galvanized zoo dua stainless hlau?
Galvanized steel yuav tsum muaj lub zog siab lossis vuam ua haujlwm (xws li tag nrho galvanizing ntawm cov qauv hlau tom qab vuam), thiab qhov saum npoo tuaj yeem txau / coated (xws li xim- cov phaj coated los nkaum qhov tsos ntawm zinc txheej). Nws tsim nyog rau cov peev nyiaj tsawg thiab feem ntau corrosive ib puag ncig. Stainless hlau yuav tsum tsis muaj menyuam thiab tu yooj yim (xws li cov tsev kho mob thiab cov chaw tsim khoom noj), thiab yuav tsum tau muaj kev saib xyuas mus tas li -dawb (xws li cov tsev cog khoom). Nws yog tsim rau scenes nrog av noo ib puag ncig thiab ntsev / kua qaub thiab alkali ntsiab lus.
Yuav galvanized steel xeb?
Kev xeb ntawm galvanized steel nyob ntawm qhov zoo ntawm zinc txheej, siv ib puag ncig thiab kev saib xyuas
Hauv qhov xwm txheej dab tsi yuav xeb tshwm sim?
|
Rlub caij |
Phem |
Kev daws |
|
Zinc txheej hnav / khawb |
Lub substrate raug nthuav tawm thiab cov xeb liab tshwm hauv zos (xws li cov npoo thiab lub qhov ntsia hlau) |
Siv cov tshuaj tiv thaiv- xeb xim lossis zinc- xim xim |
|
Zinc txheej depletion |
Qhov loj ntawm cov xeb dawb (zinc corrosion khoom) → liab xeb (steel corrosion), feem ntau nyob rau hauv ntev - siv sab nraum zoov |
Xaiv ib txheej zinc tuab (xws li Z275) los yog ua haujlwm tsis tu ncua |
|
Ib puag ncig corrosive heev |
Nyob rau hauv cov ntug dej hiav txwv (tsim tshuaj tsuag) thiab kua qaub nag, zinc txheej corrosion yog ceev |
Hloov mus rau galvanized steel (GL) lossis stainless hlau (304/316) |
Kev sib piv ntawm xeb kuj ntawm cov txheej txheem galvanizing sib txawv
|
Hom |
Txheej thickness |
Lub neej zoo (ib puag ncig ib puag ncig) |
Muaj cov xwm txheej |
|
Electro{0}}galvanized (EG) |
3-20μm |
5-10 xyoo |
Sab hauv chassis, hluav taws xob vaj tse |
|
Kub-dip galvanized (GI) |
20-200μm |
15-30 xyoo |
Lub tsev ru tsev, steel qauv |
|
Galvanized hlau (GA) |
10-50μm |
20 xyoo thiab siab dua |
Tsheb lub cev vaj huam sib luag, siab- khoom siv hauv tsev kawg |
