Yuav kom ntseeg tau cov hlau los ntawm cov txheej txheem corrosion tsis zoo, yuav tsum tau siv cov primer. Qhov kev sib sau no yuav muaj lub hom phiaj sib txawv.
Primer types
Primer rau cov hlau yog xaiv nyob ntawm seb cov xwm txheej sab nraud uas yuav tswj tau thaum lub sijhawm ua haujlwm, nrog rau hom ntawm qhov chaw. Yog li, cov primer tuaj yeem npaj rau kev siv rau cov hlau tsis muaj hlau lossis hlau ferrous. Ntawm lwm yam, qhov muaj pes tsawg leeg no tuaj yeem tsim los hloov xeb. Muaj phosphating, passivating, cais tawm, inhibiting thiab tiv thaiv sib tov.
Phosphating sib tov yog ob lub hauv paus, uas yog tsim los ntawm phosphoric acid thiab diluent. Koj tuaj yeem siv qhov sib tov no rau txhua hom hlau. Nws txhim kho tuav tau zoo.
Insulating primer kuj tuaj yeem ua alkyd lossis epoxy. Nws yog tsim los tiv thaiv qhov chaw ntawm noo noo thiab oxygen. Nyob rau hauv nws muaj pes tsawg leeg - hlau mini, zinc dawb, raws li zoo raws li muab tub lim. Cov tshuaj no feem ntau yog siv rau cov hlau ferrous.
Passivating primer rau hlau
Nws tuaj yeem txo qhov kev ua haujlwm ntawm electrochemical. Pab kom qeeb corrosion. Yog hais tias peb tham txog cov inhibitory sib tov, ces nws tsim nyob rau saum npoo ib yam tshiab ntawm cov khoom uas zoo ib yam li cov enamel-primer, uas combines cov khoom ntawm ob compositions. Cov inhibitors nws muaj tuaj yeem yog dej lossis roj soluble.
tiv thaiv primer
Nws yog tsim los ua hauj lwm nrog rusty nto. Yog tias koj xav tau cov primer rau hlau, ces koj tuaj yeem xaiv qhov tau hais los saum toj no, nws muaj magnesium alloy nrog zinc, nrog rau hmoov txhuas. Tom qab daim ntawv thov, ib zaj duab xis tsis pom yog tsim rau saum npoo, uas muaj peev xwm tiv thaiv lub hauv paus hlau txawm tias muaj khawb. Qhov no tau ua tiav ua tsaug rau zinc particles uas yog ib feem ntawm primer. Feem ntau nws yog ib qho yuav tsum tau kho qhov chaw uas twb tau raug rusting txheej txheem. Kuj tseem muaj cov primers zoo li no, lawv daim ntawv thov yog nqa tawm tom qab ntxuav qhov chaw. Tom qab lub hauv paus yuav tiv thaiv los ntawm ya raws.
Txoj kev xaiv thiab daim ntawv thov
Yog tias koj xav tau primer rau hlau, koj yuav tsum xub paub koj tus kheej nrog cov qauv uas tau xaiv. Nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account tsis yog tsuas yog hom hlau, tab sis kuj yog huab cua thiab cov khoom siv thauj khoom. Tom qab tus tswv yuav tsum paub nws tus kheej nrog cov cuab yeej ntawm kev siv cov muaj pes tsawg leeg. Thaum pib, qhov saum npoo yuav tsum tau tso tawm los ntawm cov txheej txheem qub, ntxuav cov av thiab hmoov av, thiabua ke. Ntawm lwm yam, nws yog ib qho tsim nyog los nqa tawm degreasing, thiab tshem tawm xeb.
Hlau xeb primer yuav tsum tau siv nrog cov cuab yeej tsim nyog, nws tuaj yeem yog txhuam, pneumatic sprayer lossis cov menyuam. Yog tias qhov kev xaiv thib ob yog siv, tom qab ntawd kev ua haujlwm tuaj yeem ua tiav hauv lub sijhawm luv, txawm li cas los xij, cov cuab yeej zoo li no tsis yog ib txwm nyob hauv arsenal ntawm tus tswv, thiab nws tsis pom zoo kom xauj nws los npog thaj chaw me me. Thaum muas cov ntaub ntawv, nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account qhov noj, qhov nruab nrab daim duab no txawv ntawm 120 mus rau 140 grams ib square meter. Qhov no muaj tseeb rau kev thov ob txheej. Qhov no yog tus nqi pom zoo los ntawm cov chaw tsim khoom.
Ib txheej txheej dej noo feem ntau yog siv rau saum toj, tshwj xeeb tshaj yog rau cov hlau primers uas yuav raug te thiab daus. Txawm hais tias primer yog siv, nws yog ib qho tsim nyog yuav tsum tau ua raws li cov kev cai rau cov av noo thiab kub. Raws li rau qhov kawg, nws tuaj yeem sib txawv ntawm -10 txog +25 degrees.
Txheej txheem ntawm alkyd primers rau hlau
Alkyd xim-primer rau hlau tuaj yeem siv los ua cov txheej txheem ywj pheej. Qhov kom zoo dua ntawm qhov muaj pes tsawg leeg yog tias nws tsis tas yuav siv cov xim lossis enamel rau saum nws. Cov txiaj ntsig ntxiv suav nrog kev muab cov yam ntxwv zoo tshaj plaws los tiv thaiv corrosion, nrog rau qhov muaj peev xwm ntawm daim ntawv thov mus rau qhov chaw uas tau raug rusting txheej txheem. Yog li, qhov no qhia tiaslub alkyd primer ua raws li ib tug converter. Qhov sib tov muaj peev xwm muab kev tiv thaiv kev ruaj ntseg tiv thaiv ntau yam huab cua tshwm sim, hais txog cov hluav taws xob ultraviolet, nrog rau qhov kub thiab txias.
Cov khoom xyaw no muaj lub zog zais siab. Vim lub fact tias ntawm cov khoom xyaw ntawm alkyd tiv thaiv muaj ib tug txhuas muab tub lim, cov ntaub ntawv piav qhia muab ntxiv hnav tsis kam.
Txheej txheem cej luam ntawm primers thiab lawv cov nqi
Yog tias koj xav yuav cov primer, koj yuav tsum xub paub koj tus kheej tsis yog nrog cov nqi xwb, tab sis kuj nrog cov tuam ntxhab. Piv txwv li, ib tug primer hom LAKRA yuav raug nqi 2000 rubles, koj yuav tau them tus nqi no rau 20 kg ntawm qhov sib tov. Nws muaj cov yam ntxwv zoo heev thiab muaj peev xwm tiv thaiv cov hlau los ntawm kev cuam tshuam sab nraud. Thaum muas Super muaj pes tsawg leeg nrog tib lub ntim, cov neeg siv khoom yuav tsum tau them 1170 rubles. Los ntawm txheej txheej nrog qhov sib tov, koj tiv thaiv nws thiab ua kom nws lub neej ntev. Yog tias koj xav tau npog qhov chaw me me, tom qab ntawd koj tuaj yeem yuav cov khoom sib xyaw ntawm cov khoom lag luam thawj zaug hauv tus nqi ntawm 1 kg, qhov twg koj yuav tsum them 120 rubles hauv khw muag khoom. Dufa hom khoom raug nqi 1600 rubles rau 2.5 litres. Raws li rau cov chaw tsim khoom HAMMERITE, nws nthuav tawm cov primer muag rau 1150 rubles. Lub thawv yuav muaj qhov ntim ntawm 0.75 litres.
Zoo kawg
Cov lus piav qhia sib txawv ntawm lub hom phiaj thiab kev ua haujlwm. Piv txwv li, primer rau hlau rau tsheb muaj cov yam ntxwv tsim nyog. Txawm li cas los xij, kuj muajuniversal mixs, lawv yog haum rau cov qauv nto thiab rau cov teeb meem. Ntawm cov qub, cam khwb cia, forged, nrog rau lwm yam khoom muaj peev xwm ua kom pom tseeb, uas muaj me ntsis roughness uas txhim kho cov nplaum zoo, uas yog qhov zoo heev rau kev ua haujlwm priming. Cov teeb meem hauv qab muaj xws li tooj liab, txhuas, hlau galvanized, thiab lwm yam khoom siv uas tuaj yeem ua rau muaj tshuaj lom rau ntawm qhov chaw thiab txo qhov adhesion.
Yog tias koj yuav yuav cov primer rau hlau GF 021, ces koj yuav tsum paub koj tus kheej nrog cov neeg tsim khoom cov lus pom zoo. Yog li, nyob rau hauv lub txhab nyiaj, lub sij hawm thaum lub sij hawm uas muaj pes tsawg leeg muaj peev xwm tuav tawm ntawm cov hlau yuav qhia tau. Cov yam ntxwv los tiv thaiv corrosion ntawm cov muaj pes tsawg leeg kuj tseem ceeb. Tag nrho cov yam ntxwv hais txog yuav tsum tau them nyiaj tshwj xeeb rau ua ntej yuav khoom. Nws yog nyob rau ntawm no tias lub durability ntawm cov txheej tiv thaiv thiab lub neej ntawm cov hlau nws tus kheej yuav nyob ntawm seb. Nws tsis tsim nyog txuag ntawm kev sib xyaw primer, nws yog qhov zoo dua los yuav cov khoom lag luam los ntawm cov chaw tsim khoom uas tau tsim nws tus kheej hauv kev ua lag luam rau cov khoom siv.
