Tsheb primer - xaiv xim, daim ntawv thov nuances
Txheem
Hauv kev npaj rau kev ua tiav, kev daws teeb meem tsis zoo. Cov ntsiab lus hnyav ntawm cov xim tseem nyob hauv qab ntawm lub kaus poom, thiab cov seem poob rau hauv rab phom. Thiab yog hais tias lub thawv tau shaken, ces cov kua sib tov tseem yuav nrog cua hais.
Thaum ua haujlwm lub cev, nws yog ib qho tseem ceeb kom paub yuav ua li cas xaiv primer rau cov xim tsheb. Yog tias cov txheej txheem siv tsis raug, ces cov xim pleev xim yuav tsis tsuas yog saib tsis zoo, tab sis kuj tiv thaiv corrosion tsis zoo.
Ua rau Kev Pab Cuam Tshuam qis hauv Automotive Paints
Ntau qhov tsis xws luag uas tshwm sim ntawm qhov chaw kho yog vim tsis muaj kev paub ntawm cov neeg pleev kob, kev siv cov khoom tsis zoo, lossis kev ua txhaum ntawm staining technology.
Lub tswv yim ntawm kev zais lub zog thiab kev siv xim
Txhawm rau kom qhov sib txawv ntawm qhov sib txawv ntawm cov substrate ntawm lub tsheb lub cev ploj mus, nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account lub peev xwm ntawm cov xim ua kom cov txheej qub tsis pom. Qhov parameter no hu ua opacity. Nws yog ntsuas hauv grams lossis milliliters ib square meter. m cheeb tsam thiab ncaj qha nyob ntawm qhov zoo ntawm cov pigmented sib tov. Qhov zoo dua yog, qhov tsawg dua xim noj yuav yog los tsim ib qho chaw ntawm ib qho xim thiab lub cev thiab cov khoom siv kho tshuab.
Raws li GOST, lub hwj chim npog yog suav tias yog tiav yog tias qhov piv ntawm cov dawb rau dub substrate tshaj 0,98.
Lub cev priming
Raws li cov kws tshaj lij, txawm tias muaj qhov sib xyaw zoo nkauj tshaj plaws, koj yuav xav tau tsawg kawg 2 txheej los nkaum lub hauv paus ntawm qhov ntxoov ntxoo sib txawv.
Qhov teeb meem ntawm kev pab them nqi tsis zoo
Feem ntau, cov neeg tsav tsheb tau ntsib nrog qhov tseeb tias cov kab ntawm cov txheej dhau los tau pom los ntawm thaj chaw tinted: kab txaij lossis pob tshwm. Qhov tshwm sim no feem ntau cuam tshuam nrog kev siv cov xim tsis sib xws hauv cov suab nrov thiab saturation.
Piv txwv li, nyob rau hauv qhov chaw kho, lub teeb grey xim ntawm primer yog siv nyob rau hauv cov xim silvery ntawm ib tug maub xim hlau.
Tsis tas li ntawd, lub zog zais tsis zoo yog feem ntau tshaj tawm ntawm lub tsheb lub cev, qhov chaw uas muaj qhov ntse ntse thiab cov npoo. Nyob rau hauv cov chaw nyuaj-mus txog rau lub sprayer, cov xim tsis tau txaus.
Cov teeb meem tseem ceeb ntawm kev tsis zoo zais lub zog:
- kev noj ntau dhau ntawm cov kua pigment sib tov;
- ntev drying ntawm nruab nrab txheej;
- lub zog tsis zoo thiab adhesion ntawm tag nrho cov khoom siv pleev xim vim muaj ntau txheej ntawm cov av thiab hauv paus;
- inexpressive lacquer gloss.
Qhov no feem ntau ntsib los ntawm cov neeg pleev kob pib. Muaj ntau qhov laj thawj rau cov teebmeem tsis zoo no.
Hauv kev npaj rau kev ua tiav, kev daws teeb meem tsis zoo. Cov ntsiab lus hnyav ntawm cov xim tseem nyob hauv qab ntawm lub kaus poom, thiab cov seem poob rau hauv rab phom. Thiab yog hais tias lub thawv tau shaken, ces cov kua sib tov tseem yuav nrog cua hais.
Cov xim tsis sib xws. Yog li ntawd, lub thickness ntawm cov xim yuav txawv (tshwj xeeb tshaj yog nyob rau hauv cheeb tsam ntawm cov pob qij txha thiab seams). Qhov no yog qhov tshwm sim thaum cov txheej txheem txheej txheem raug ua txhaum cai thiab thaum ua haujlwm nrog cov khoom siv tsis raug.
Tsheb qhov rooj primer
Kev ziab ntawm cov khoom nruab nrab yam tsis ua raws li cov lus pom zoo ntawm cov tuam txhab xim. Qhov no ua rau lub tsho tiv no sab saum toj kom yaj nrog cov tee ntawm "ntub" primer thinner.
Qhov kawg qhov tseem ceeb hauv kev zais tsis zoo yog qhov polishing ntawm qhov tsis tuaj yeem ua tiav thiab siv cov khoom tsis sib xws. Yog li ntawd, cov txheej txheem saum toj kawg nkaus ntawm cov khoom siv pleev xim yog muab tshem tawm ib nrab.
Primer khoom rau tsheb
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm qhov muaj pes tsawg leeg nyob ntawm nws lub hom phiaj. Cov yam ntxwv tseem ceeb:
- Passivating. Pab kom oxidize qhov chaw. Tsim nyog los tiv thaiv cov txheej txheem corrosion.
- Phosphating. Ua ib txheej resistant rau noo noo thiab kub hloov nrog kev pab los ntawm acid.
- Tiv thaiv. Nws tsim ib qho chaw galvanized uas tiv thaiv lub hauv paus hlau.
- Hloov kho. Nws yog siv rau thaj tsam xeb ntawm qhov kub tsis qis dua 15 ° C.
- rwb thaiv tsev. Muab dej tsis kam.
Yog li hais tias cov av tsis tawg los ntawm ntuj tshwm sim, nws yog them rau sab saum toj nrog ib lub hauv paus khoom los yog lub tsho tiv no saum toj kawg nkaus.
Yuav ua li cas xaiv qhov zoo primer rau xim ntawm lub tsheb
Lub substrate yuav tsum tau coj mus rau hauv tus account lub npog lub hwj chim ntawm lub hauv paus khoom. Yog tias koj npaj yuav pleev xim lub tsheb hauv cov xim achromatic uas muaj qhov sib piv siab tshaj plaws, qhov ntxoov ntxoo ntawm cov txheej nruab nrab tsis ua lub luag haujlwm, yog tias pom qee cov txheej tuab. Tab sis rau qhov zoo tshaj plaws, ua raws li cov cai hauv qab no:
- Cov xim ntawm primer rau cov xim dub yuav tsum yog tib yam li rau cov xim dub.
- Yog tias kev sib xyaw nrog cov tsis muaj zog zais (xiav, liab, hlaws) yog siv, ces cov txheej txheem nruab nrab yog qhov zoo nrog cov xim sib txawv ntawm grey.
Yog tias koj paub yuav ua li cas xaiv cov primer rau cov xim tsheb, ces yuav tsis muaj translucence ntawm cov khoom nruab nrab thiab teeb meem nrog adhesion ntawm cov ntaub ntawv pleev xim. Txhawm rau ua qhov no, koj yuav tsum tau yuav cov khoom siv, suav nrog lub zog zais ntawm cov txheej tiav.
