Qhov zoo tshaj plaws primers rau galvanized tsheb hlau
Txheem
Novice tsheb mechanics feem ntau xav paub seb hom kev sib tov yuav yuav. Txawm tias paub txog cov kev daws teeb meem uas yuav tsum tau ua nrog cov khoom siv galvanized, nws tsis yog ib txwm muaj peev xwm txiav txim siab txog kev xaiv hom. Muaj ntau ntau manufacturers nyob rau hauv kev ua lag luam muab ntau yam automotive primers. Txhawm rau pab cov craftsmen, peb tau muab tso ua ke saum 3 primers rau nws pib galvanizing.
Cov primer yog ib qho tseem ceeb ntawm lub tsheb kho lub cev ua los ntawm galvanized hlau. Qhov zoo ntawm txheej nrog cov xim tiav thiab cov kua roj vanish yog nyob ntawm cov tshuaj siv.
Primers rau kho lub cev: lub hom phiaj
Ib lub primer yog cov kua muaj pes tsawg leeg tsim nyog los npaj cov av ntawm lub tsheb rau kev siv cov xim. Inexperienced car painters feem ntau ua yuam kev thaum lawv pib priming lub tsheb galvanized yam tsis tau sim los xyuas seb lub hom phiaj ntawm kev sib tov. Txhua yam khoom sib txawv tsis tsuas yog nyob rau hauv hom thiab tus nqi, tab sis kuj nyob rau hauv muaj pes tsawg leeg, uas cuam tshuam rau tej yam khoom ntawm txheej. Nyob ntawm seb hom primer rau kev ua tsheb, nws yog siv rau:
- xyuas kom muaj zog adhesion ntawm hlau rau xim;
- nce anticorrosive zog;
- filling pores thiab khawb me me sab laug tom qab sib tsoo lub tshuab;
- Kev sib cais ntawm cov txheej tsis sib xws, uas, thaum sib xyaw ua ke, tuaj yeem muab cov tshuaj tiv thaiv - o ntawm cov xim.
Hom primer
Niaj hnub no, ntau yam sib tov yog nthuav tawm nyob rau hauv lub tsheb lag luam, nrog kev pab los ntawm cov khoom siv galvanizing. Tag nrho lawv tau muab faib ua ob pawg loj:
- thawj (primers);
- theem nrab (fillers).
Galvanizing nrog cov primers tseem ceeb yog cuam tshuam rau cov chaw tsim khoom uas tsim cov tsheb. Qhov thib ob feem ntau yog siv hauv khw kho tsheb thaum kho tsheb.
Hom primer
Thawj cov av
Cov primer yog siv los pleev xim rau cov "liab qab" hlau, feem ntau raug rau corrosion. Thawj primer yog siv ua ntej puttying los yog ib txheej ntawm lwm cov kua. Nws ua haujlwm tiv thaiv, tiv thaiv qhov tsos thiab kev loj hlob ntawm xeb. Tsis tas li ntawd, lub primer rau lub tsheb liab qab galvanized ua ib qho nplaum "intermediary", uas muab lub zog adhesion ntawm cov hlau mus rau txheej tom ntej ntawm cov xim pleev xim.
Secondary av
Lub filler ua hauj lwm raws li ib tug muab tub lim thiab leveler. Nws txoj haujlwm tseem ceeb yog txhawm rau sau cov pores thiab cov craters tsim thaum lub sij hawm putty, ntxiv rau kom tshem tawm cov txiaj ntsig ntawm kev sib tsoo ua tsis tiav, txhawm rau theem pob qij txha thiab hloov mus. Secondary primers muaj adhesion zoo thiab corrosion kuj, tab sis cov yam ntxwv no qis dua piv rau primers.
Feature ntawm galvanizing primer
Cov hlau nto muaj ib qho kev ntxhib los mos uas tsis qiv nws tus kheej zoo rau xim. Txhua tus kws ua haujlwm paub tias nws yog qhov tsim nyog los ua cov hlau galvanized ntawm lub tsheb kom ntseeg tau tias nws adhesion rau cov xim pleev xim. Tsis tas li ntawd, cov nplooj ntawv steel lawv tus kheej muaj kev tiv thaiv corrosion siab, tab sis thaum muaj kev sib tsoo me me, zinc tau yooj yim puas. Yog li ntawd, lub tsheb yog unevenly tiv thaiv los ntawm xeb, uas ntxiv ua rau cov tsos ntawm foci ntawm corrosion.
Ib qho tseem ceeb ntawm cov primer rau galvanized tsheb hlau yog tias nws yog thawj zaug uas yuav tsum tau txo qis kev tiv thaiv kev ua haujlwm ntawm txheej los ntawm etching nrog acid. Hauv qhov no, primer yuav ua tau zoo li qhov ua tau.
Yuav ua li cas prime galvanized tsheb hlau
Raws li cov thev naus laus zis, cov hlau liab qab yuav tsum tau kho nrog cov primer sib xyaw kom haum. Tom qab ntawd, nws muaj peev xwm ua tiav txheej txheej nrog cov xim thiab cov kua roj vanish, uas tseem yuav tsum tau xaiv kom raug.
Primer rau galvanized hlau
Muaj kev lag luam muaj primers tsim tshwj xeeb rau zinc nto. Txhawm rau txiav txim siab tias lub tsheb tau ua haujlwm hauv cov xwm txheej hnyav, rau cov txheej txheem zoo, yuav tsum xaiv galvanized epoxy primer. Nws yog ruaj, resistant rau txhua yam kev puas tsuaj, muaj siab noo noo kuj. Kuj tseem muaj ob lub ntsiab lus primer-enamels uas tau siv rau cov hlau "liab qab" thiab tib lub sijhawm ua haujlwm zoo li topcoat.
Ua ntej priming, nws yog ib qho tseem ceeb uas yuav tau ntxuav qhov chaw los ntawm cov av thiab hmoov av. Cov hlau yuav tsum tau qhuav kom tsis muaj tshuaj lom neeg tshwm sim thaum lub sijhawm ua haujlwm uas tuaj yeem cuam tshuam rau txheej txheej. Cov tshuaj primer yog yooj yim siv nyob rau hauv daim ntawv ntawm aerosol.
Xim rau galvanized nto
Nws yog tsis tsim nyog los npog cov hlau nrog roj los yog alkyd xim thiab varnishes. Lawv kev cuam tshuam nrog zinc nto yuav ua rau oxidation, txo cov nplaum nplaum, uas yuav ua rau o thiab tev ntawm cov xim. Nws kuj tsis pom zoo kom siv cov khoom sib tov uas muaj tooj liab, tin, antimony. Lawv txo cov durability ntawm cov pleev xim rau saum npoo. Rau galvanized hlau, nws yog advisable siv cov xim:
- hmoov;
- urethane;
- acrylic xim.
Qhov zoo tshaj plaws yog hmoov xim, ua los ntawm epoxy thiab polymers. Nws yog siv nyob rau hauv ntau lawm rau painting tsheb, raws li nws muaj zog thiab durability. Qhov tsuas yog qhov tsis zoo ntawm txheej yog qhov nyuaj rau decorate.
Phosphate av
Qhov zoo tshaj plaws primers rau galvanized hlau
Novice tsheb mechanics feem ntau xav paub seb hom kev sib tov yuav yuav. Txawm tias paub txog cov kev daws teeb meem uas yuav tsum tau ua nrog cov khoom siv galvanized, nws tsis yog ib txwm muaj peev xwm txiav txim siab txog kev xaiv hom. Muaj ntau ntau manufacturers nyob rau hauv kev ua lag luam muab ntau yam automotive primers. Txhawm rau pab cov craftsmen, peb tau muab tso ua ke saum 3 primers rau nws pib galvanizing.
"ZN-Primer" automotive epoxy ceev-kom qhuav rau steel lub cev panels thiab welds
Cov primer yog qhov zoo tagnrho rau cov tsheb galvanized rau tha xim, muab cov hlau zoo tiv thaiv corrosion thiab adhesion zoo. Qhov sib tov yog siv rau kev kho mob ntawm lub cev tsheb, cov khoom siv dej thiab cov khoom uas raug xeb. Cov muaj pes tsawg leeg yog qhov txawv ntawm qhov tsis muaj smudges thaum thov vertically, ceev kom qhuav ceev, compatibility nrog ntau hom tsheb enamels.
| Chaw Tsim Tshuaj | Nyob zoo Gear |
| Lub Sijhawm | Kev tiv thaiv corrosion |
| Daim ntawv thov nto | Zinc |
| Scope | 397 g |
Aerosol primer HB BODY 960 lub teeb daj 0.4 l
Ob lub ntsiab lus primer haum rau daim ntawv thov ntawm zinc, txhuas, chrome, thiab feem ntau siv rau lub cev ua haujlwm tsheb. Vim yog cov ntsiab lus ntawm cov kua qaub nyob rau hauv cov ntsiab lus, qhov sib tov yog siv los ua primer. Tab sis, raws li kev txheeb xyuas, cov neeg kho vaj qiv ntawv xav tau npog lub tsheb galvanized nrog lub primer no kom thiaj li sau cov hws tawm thiab cov kab tawg me me. Tom qab siv tus neeg sawv cev rau qhov chaw puas lawm, ib zaj duab xis yog tsim los thaiv kev loj hlob ntawm indelible xeb. Tom qab siv cov primer sib tov, nws raug nquahu kom siv cov enamel ntxiv, uas yuav yog qhov sib cais ntawm cov kua qaub txheej thiab lub tsho tiv no saum toj kawg nkaus.
| Chaw Tsim Tshuaj | HB lub cev |
| Lub Sijhawm | Corrosion tiv thaiv, pore filling |
| Daim ntawv thov nto | Aluminium, zinc, chrome |
| Scope | 0,4 l |
Primer rau galvanized thiab ferrous hlau NEOMID 5 kg
Ib qho khoom siv primer, lub hom phiaj tseem ceeb yog los tiv thaiv qhov chaw los ntawm xeb. Nws yog npaj txhij-ua, yog li tsis tas yuav tsum sib tov sib xyaw nrog hardeners thiab lwm yam khoom ua ntej siv. Cov av muaj cov yam ntxwv zoo thiab yog nyob rau hauv kev thov ntawm cov kws ua haujlwm craftsmen. Qhov tsuas yog qhov tsis zoo yog qhov ziab kom qhuav - 24 teev.
| Chaw Tsim Tshuaj | Neomid |
| Lub Sijhawm | Kev tiv thaiv corrosion |
| Daim ntawv thov nto | Zinc, ferrous hlau |
| Scope | 10 kg |
Cov Qauv Ntsuas
Thaum xaiv primer rau kev ua tsheb, nws raug nquahu kom xav txog:
- durability ntawm cov tshiab txheej;
- tiv thaiv ib puag ncig cuam tshuam;
- cov khoom nplaum;
- tshuaj lom neeg kev ua si;
- tiv taus noo noo thiab Frost.
Yuav ua li cas pleev xim galvanized hlau kom nws tsis tev tawm ntev li ntev tau
Ua ntej siv primer thiab pleev xim rau ntawm lub tsheb hlau galvanized, npaj qhov chaw:
- Ua kom huv ntawm lub tsheb qhov chaw los ntawm cov plua plav, av, kab ntawm corrosion. Ua li no, siv cov khoom siv sandblasting, ntawv xuab zeb, dej soapy.
- Tom qab ntawd degrease qhov chaw nrog qis qis ntawm phosphoric acid los yog sib tov ntawm acetone thiab toluene nyob rau hauv ib tug ratio ntawm 1 mus rau 1. Nws yog tso cai rau degrease lub txheej nrog kerosene, dawb ntsuj plig, chlorine-muaj tshuaj dawb.
Tam sim ntawd tom qab ua cov kauj ruam no thiab ziab cov khoom siv, pleev xim rau saum npoo. Nws raug nquahu kom ua tiav kev pleev xim hauv 30 feeb tom qab koj tau primed lub tsheb. Qhov no yuav ua rau kom cov khoom nplaum ntawm cov khoom, nrog rau muab cov txheej txheem zoo. Yuav kom ua tiav qhov siab tshaj plaws, nws raug nquahu kom siv 2-3 txheej ntawm topcoat.
