1.Lub hauv paus ntsiab lus ntawm kev kho dua tshiab yog dab tsi?
"Sib npaug los yog zoo dua li cov txheej txheem qub" - qhov kev ua tau zoo ntawm cov txheej txheem kho yuav tsum tsis pub tsawg dua li ntawm cov txheej txheem qub, nrog rau qhov tshwj xeeb ntawm kev tiv thaiv corrosion txuas ntxiv.
2.Dab tsi yog cov kauj ruam pretreatment?
** Slag/Spatter Tshem Tawm: ** Ua tib zoo tshem tawm tag nrho cov vuam slag thiab spatter hais siv ib qho tshwj xeeb scraper, chisel, los yog grinder.
** Sib tsoo thiab ntxuav: **
Siv cov cuab yeej siv hluav taws xob (xws li lub tshuab hluav taws xob los yog hlau txhuam) los yog cov cuab yeej siv tes los zom cov welded cheeb tsam (weld seam thiab 50-100mm ntawm ob sab) kom txog rau thaum cov hlau nplaum tiav (St2 lossis Sa2.5 qib).
Xyuas kom muaj kev hloov pauv hauv thaj tsam hauv av, tsis muaj cov npoo ntse thiab burrs.
**Degreasing and Containmination Removal:** Ua kom huv si hauv av siv cov tshuaj ntxuav hlau tshwj xeeb lossis hnyav (xws li acetone) kom tshem tawm cov roj, cov ntiv tes, plua plav, thiab lwm yam khoom paug. Xyuas kom meej "dej zaj duab xis txuas ntxiv" kev huv.
**Drying:** Xyuas kom lub saum npoo yuav coated yog qhuav tag.
3.Dab tsi yog cov kauj ruam rau kev thov cov tshuaj tiv thaiv tshwj xeeb -corrosion primer?
Kev xaiv cov khoom siv: Ib qho kev kho tshwj xeeb primer sib haum nrog cov xim -coated steel ntawv substrate (galvanized / aluminized zinc) thiab tom qab topcoat yuav tsum tau siv. Cov hom muaj xws li:
Epoxy Zinc-Ntxim nplua nuj Primer: Zoo heev corrosion kuj thiab muaj zog adhesion, ua rau nws xaiv thawj.
Epoxy primer: zoo versatility thiab muaj zog adhesion.
Tshwj xeeb Galvanized Steel Sheet Kho Primer.
Daim ntawv thov: Siv cov primer sib npaug los ntawm txhuam los yog txau rau hauv cov xuab zeb xuab zeb. Ua kom tiav qhov kev pab them nqi tsis muaj qhov tsis nco qab.
Drying/Curing: Cia kom qhuav kom txaus los yog tshuaj tua kab mob raws li cov khoom qhia.
4.Dab tsi yog cov kauj ruam rau filling putty?
Cov ntawv thov: Cov ntawv thov kho kom zoo nkauj uas yuav tsum tau muaj qhov zoo ntawm - weld zoo li, xws li lub tsev sab nrauv.
Daim ntawv thov: Siv lub putty sib haum nrog cov txheej txheem los sau cov kev nyuaj siab thiab qhov tsis sib xws.
Sanding: Tom qab lub putty tau kho tag nrho, xuab zeb nws finely kom txog thaum nws blends smoothly nrog ib puag ncig txheej.
5.Yuav ua li cas xaiv lub topcoat haum?
Xim txuam: Qhov no yog qhov kev sib tw. Qhov kev daws teeb meem zoo tshaj plaws yog thov los yog xaj ib qho tshwj xeeb kho topcoat nrog tib cov qauv batch raws li cov txheej txheem qub los ntawm cov thawj pre-coated coil chaw tsim tshuaj paus. Yog tias qhov no tsis tuaj yeem ua tau, kev sib txuam xim yuav tsum ua kom tiav qhov sib tw ze tshaj plaws.
Kev ua tau zoo sib xws: Hom coat topcoat (polyester, silicone- hloov polyester, PVDF, thiab lwm yam) yuav tsum ua raws li qhov ua tau nrog lossis zoo dua li cov txheej txheem qub.
Daim ntawv thov: Siv los ntawm txhuam, cov menyuam, lossis me me - nplai txau. Feem ntau, ob lossis ntau lub tsho tiv no yuav tsum tau ua kom tiav qhov xav tau zaj duab xis tuab thiab xim sib xws.