1. Yuav tsum tau npaj dab tsi ua ntej kev kho dua tshiab?
High-kev kho kom zoo pib nrog kev npaj cov txheej txheem substrate, uas cuam tshuam ncaj qha rau adhesion ntawm txheej tshiab.
** Kev Tu Kom Huv Huv thiab Kev Ntsuam Xyuas: ** Ua ntej, tshuaj xyuas thiab ntxuav qhov chaw rau roj, plua plav, thiab xeb xeb. Tib lub sijhawm, txiav txim siab hom substrate-galvanized, aluminized zinc, lossis txias -rolled steel. Yog tias tsuas yog txheej txheej yog hnub nyoog tab sis txheej txheej galvanized tsis zoo, kev kho mob kuj yooj yim; Yog tias xeb tau tshwm sim, yuav tsum tau xuab zeb ntau dua.
** Sib sib zog nqus Sanding: ** Txawm hais tias xeb, qhov saum npoo yuav tsum tau sanded kom roughness. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov hlau galvanized, vim tias nws qhov chaw du heev ua rau nws nyuaj rau cov xim tshiab kom ua raws.
** Ntxuav thiab ziab:** Thaum kawg, siv lub siab - rab phom dej siab nrog cov nylon txhuam los ntxuav, xyuas kom cov substrate huv si, ruaj, thiab qhuav tag.
** Kev Pabcuam Kev Pabcuam: ** Rau cov pob qij txha, cov ntsia hlau qhov, thiab lwm qhov chaw uas muaj peev xwm tawm tau, kev siv zog hauv zos tuaj yeem siv los siv cov txheej txheem dej tsis zoo xws li "ib txheej ntawm cov ntaub thiab peb lub tsho tiv no."
2. Yuav ua li cas los daws qhov khawb, dents, thiab lwm yam tsis xws luag?
Rau kev puas tsuaj saum npoo xws li kev txiav / khawb lossis dents, cov hauv qab no tuaj yeem siv tau:
Cov khawb me me: Cov tshuaj txhuam hniav tuaj yeem siv tau, siv cov tshuaj reagents kom me ntsis corrode saum npoo thiab tshem tawm cov khawb.
Sib sib zog nqus khawb: Rau kev puas tsuaj sib sib zog nqus, yuav tsum muaj txoj hauv kev xws li kev sib tsoo tshuab lossis xaim kos duab.
Cov chaw uas ploj lawm / dents: Yog tias tsis muaj xim adhesion yog vim cov kab ntau lawm, nws tuaj yeem kho hauv zos nrog tib hom xim.
3. Yuav ua li cas xaiv thiab siv primer thiab topcoat?
Kev xaiv cov xim zoo nkauj yog qhov tseem ceeb rau kev txhim kho kom zoo, tshwj xeeb tshaj yog hais txog kev sib tw tshwj xeeb ntawm zinc tsiv teb tsaws. Cov xim zoo tib yam yog qhov nyuaj rau kev ncaj qha rau cov nplooj ntawv galvanized vim tias zinc txheej yog reactive thiab yooj yim reacts nrog cov xim zaj duab xis, ua rau tev.
Yog li ntawd, xaiv qhov tsim nyog kho dua tshiab - cov xim tshwj xeeb yog qhov tseem ceeb.
Kev xaiv primer (tseem ceeb!): Ib txwm xaiv cov primer tshwj xeeb rau cov ntawv galvanized, xws li phosphate primer lossis zinc yellow primer. Rau rusted substrates, xeb - hloov primer tuaj yeem siv. Hom primer no zoo txhim kho adhesion thiab inhibits zinc reactivity.
Kev xaiv Topcoat: Lub topcoat yuav tsum tau xaiv raws li qhov kev thov ib puag ncig. Cov huab cua siab heev-cov polyester resistant los yog fluorocarbon (PVDF) topcoats raug pom zoo los xyuas kom meej ntev - lub sij hawm xim tuav thiab aging kuj.
Cov ntsiab lus thov:
Txheej Compatibility: Ua raws li lub hauv paus ntsiab lus ntawm "mob primer + txuam topcoat". Tom qab siv cov primer, nws raug nquahu kom tos 2-4 teev (nyob ntawm qhov kub thiab av noo) ua ntej siv lub topcoat.
Tension Matching: Qhov nro ntawm cov xim kho (recoat) yuav tsum qis dua qhov qub topcoat kom ntseeg tau tias ntub dej thiab adhesion.
4. Dab tsi yog qhov tshwm sim ntawm txheej txheej blistering, tev, lossis gloss tsis zoo?
Cov teeb meem zoo tom qab kho dua tshiab feem ntau tshwm sim los ntawm kev npaj tsis raug.
Adhesion tsis txaus (Peeling / Shedding):
Lub hauv paus ua rau yog kev npaj tsis txaus substrate.
Qhov saum npoo yuav du dhau vim tsis muaj xuab zeb, lossis muaj cov roj seem lossis hmoov av.
Nws kuj tuaj yeem yog vim tsis sib haum xeeb ntawm primer thiab topcoat, los yog txheej incompatibility.
Gloss tsis zoo:
Qhov no tej zaum yuav muaj feem xyuam rau cov xim nws tus kheej los yog cov txheej txheem ntawm daim ntawv thov, xws li ntau thinner los yog siab ambient humidity.
Nws kuj tseem tuaj yeem tshwm sim los ntawm kev tswj qhov kub tsis zoo hauv qhov cub curing.
Xim inconsistency:
Cov xim sib txawv me ntsis tuaj yeem muaj nyob nruab nrab ntawm cov xim sib txawv ntawm cov xim sib txawv lossis ntawm cov xim -coated panels uas ua rau lub sijhawm sib txawv.
Tsis tas li ntawd, kev ua kom lub cev muaj zog ntawm cov ntaub ntawv raug ultraviolet lub teeb kuj tseem yog qhov ua tau zoo.
5. Yuav ua li cas los ntsuas qhov zoo ntawm kev kho dua tshiab thiab txuas ntxiv lub neej ntawm cov khoom kho dua tshiab?
Tom qab kho dua tshiab, qhov zoo tuaj yeem kuaj xyuas los ntawm kev sim yooj yim, thiab kev saib xyuas zoo tuaj yeem txuas ntxiv nws txoj sia.
Kev kuaj pom zoo: Tus ntoo khaub lig- txiav adhesion xeem tuaj yeem siv los kuaj xyuas qhov adhesion ntawm cov txheej txheem kho dua tshiab. Qhov zoo tshaj plaws, cov npoo txiav yuav tsum du, tsis muaj tev, ua tiav qib 0-1 tus qauv.
Kev tu thiab tu:
Tom qab- kev tshuaj xyuas kev teeb tsa: Hauv ob lub lis piam tom qab kev teeb tsa, kev tshuaj xyuas kom zoo yuav tsum tau ua kom sai sai tshem tawm cov hlau shavings, rivet residue, lossis lwm cov khib nyiab uas tuaj yeem ua rau xeb.
Kev tu txhua hnub: Khaws qhov chaw huv si thiab tsis txhob khawb nrog cov khoom ntse.
Kev Cia Siab Lifespan: Kev kho kom zoo tuaj yeem txuas ntxiv lub neej zoo nkauj ntawm lub tsev los ntawm 12-20 xyoo, lossis ntev dua.
Los ntawm cov txheej txheem kev kho dua tshiab, koj tuaj yeem tsis tsuas yog kho qhov ci rau koj cov xim galvanized-coated coils, tab sis kuj ua tiav kev siv cov peev txheej zoo heev.