1. Qhov tseem ceeb ntawm cov xim rau li qub
Valve painting tsis yog ib qho kev txhawj xeeb zoo nkauj xwb. Cov xim zoo nkauj txhim kho kev ua tau zoo thiab kev ua haujlwm ntev thaum tiv thaiv kev kho thiab hloov khoom kim heev. Cov txiaj ntsig tseem ceeb suav nrog:
- Corrosion Resistance: Cov li qub, tshwj xeeb tshaj yog nyob rau hauv cov roj, roj, thiab tshuaj lom neeg kev lag luam, muaj feem xyuam rau xeb thiab corrosion thaum raug ya raws, ntsev, los yog tshuaj lom neeg. Cov txheej txheej tsim muaj kev tiv thaiv kev tiv thaiv.
- Kev tiv thaiv ib puag ncig: Valves ua haujlwm sab nraum zoov xav tau UV tiv thaiv thiab tiv thaiv cov av noo, nag, thiab kub hloov pauv.
- Tshuaj Compatibility: Qee cov txheej txheem cuam tshuam nrog cov kua qaub lossis cov pa roj uas tuaj yeem degrade cov khoom. Cov txheej txheem tshwj xeeb pab txo qhov teeb meem no.
- Kev txheeb xyuas: Valve xim xim pab kom paub qhov txawv ntawm hom li qub, tshuab, thiab kev siv. Piv txwv li, cov dej li qub yuav siv cov xim xiav, thaum lub tshuab siv roj yuav siv daj.
2. Yam tseem ceeb uas yuav tsum tau xav txog hauv kev xaiv xim
Txhawm rau xaiv cov xim zoo rau cov li qub, koj yuav tsum ntsuas cov hauv qab no:
Khoom siv ntawm Valve
- Carbon Steel: Yuav tsum tau tiv thaiv xeb primers thiab epoxy coatings tiv taus corrosive tej yam kev mob.
- Stainless hlau: Feem ntau yuav tsum tau txheej me me tab sis tau txais txiaj ntsig los ntawm cov xim tshwj xeeb los tiv thaiv cov xim tsis zoo hauv qhov chaw hnyav.
- Alloys los yog non-metallic li qub: Cov xim yuav tsum ua raws li cov khoom sib xyaw ua ke thiab muaj kev tiv thaiv UV.
Kev ua haujlwm ib puag ncig
- Kub: Cov kev siv kub-kub, xws li hauv chav ua haujlwm, yuav tsum muaj cov txheej txheem kub-resistant (xws li, silicone-based lossis ceramic xim).
- Tshuaj lom neeg: Yog tias cov li qub tuaj rau hauv kev sib cuag nrog cov kua qaub, cov kuab tshuaj, lossis cov pa roj, cov tshuaj tiv thaiv epoxy lossis polyurethane xim yog qhov zoo tagnrho.
- Tawm sab nraum zoov: Valves nyob rau hauv qhov chaw qhib yuav tsum tau weatherproof, UV-resistant xim uas tiv taus nag, cua, thiab tshav ntuj.
Txoj kev thov
Daim ntawv thov sib txawv-xws li txau, dipping, lossis txhuam-yuav cuam tshuam rau xim xaiv thiab tuab. Kev pleev xim pleev xim ua kom muaj kev tiv thaiv zoo ib yam, thaum txhuam hniav tuaj yeem haum rau qhov chaw me me lossis cov txheej txheem tu.
3. Hom xim rau cov li qub
- Primer Xim: Qhov tseem ceeb ua lub hauv paus txheej los txhim kho adhesion thiab muab cov khoom tiv thaiv corrosion. Zinc-nplua nuj primers feem ntau yog siv rau carbon steel li qub.
- Epoxy xim: Epoxy coatings paub zoo heev adhesion, tshuaj tiv thaiv, thiab durability. Haum rau ob sab hauv tsev thiab sab nraum zoov li qub.
- Polyurethane xim: Cov no muaj kev tiv thaiv UV, tiv thaiv xeb, thiab ua kom tiav, ua rau lawv zoo tagnrho rau kev siv sab nraum zoov.
- Silicone-based Paints: Siv rau qhov kub thiab txias li qub uas ua haujlwm txog li 600 degree. Cov no muab thermal stability thiab kev tiv thaiv corrosion.
- Hmoov Txheej: Cov txheej txheem qhuav qhuav uas tsim cov txheej txheem ruaj khov, du, zoo tagnrho rau cov li qub uas xav tau kev ua haujlwm ntev thiab hnav tsis kam.
4. Kev coj ua zoo tshaj plaws rau Valve txheej
Txhawm rau ua kom tau txais txiaj ntsig zoo, ua raws li cov kev coj ua no thaum siv cov xim rau li qub:
1. Kev npaj nto:
- Tshem tawm xeb, roj, thiab cov kab mob los ntawm kev xuab zeb blasting lossis tshuaj ntxuav.
- Xyuas kom lub ntsej muag qhuav thiab du ua ntej siv cov xim.
2. Siv cov txheej txheem primer:
- Primers xyuas kom zoo adhesion thiab muab thawj txheej ntawm corrosion kuj.
3. Tsim nyog xim Thickness:
- Siv cov xim pleev xim kom raug raws li lub valve qhov raug mob thiab cov txheej txheem tsim khoom.
4. Kho thiab ziab:
- Cia lub sij hawm curing txaus los xyuas kom meej cov xim sib raug zoo. Kev siv kub-kub yuav xav tau cov txheej txheem kub-kho.
5. Kev tu tsis tu ncua:
- Tshawb xyuas cov txheej txheem valve tsis tu ncua rau kev puas tsuaj, tev, lossis hnav thiab rov pleev xim raws li xav tau.
5. Xaiv tus tsim xim zoo nkauj
Kev koom tes nrog cov tuam txhab pleev xim muaj npe nrov ua kom cov txheej txheem zoo raws li koj daim ntawv thov tshwj xeeb. Thaum xaiv ib tus neeg muag khoom, xav txog:
- Kev paub txog kev lag luam valve txheej.
- Ua raws li cov qauv kev lag luam, xws li ISO 12944 rau kev tiv thaiv corrosion.
- Kev kuaj thiab ntawv pov thawj rau tshuaj lom neeg thiab kub tsis kam.
Kev xaiv kom raug thiab siv cov xim pleev xim yog qhov tseem ceeb rau kev ua kom lub neej ntev, kev nyab xeeb, thiab kev ua haujlwm ntawm koj lub tshuab. Txawm hais tias muaj kev kub ntxhov, tshuaj corrosive, lossis huab cua huab cua, xaiv cov primer thiab topcoat zoo tuaj yeem txo cov nqi tu thiab sijhawm poob. Los ntawm kev nkag siab txog ib puag ncig, cov ntaub ntawv valve, thiab kev xaiv txheej, kev lag luam tuaj yeem tiv thaiv lawv cov peev txheej thiab tswj kev ua haujlwm zoo.
Los ntawm Diana