Kev tsis xws luag hauv tsheb painting thiab yuav ua li cas tshem tawm lawv
Txheem
- Car painting defects: hom thiab ua
- Kev kos duab
- Boiling kua roj vanish
- cov qhov tsua
- Hologram effect
- Qhov chaw punctures
- Cov tsos ntawm npuas
- Cov nyhuv wrinkling
- dej stains
- Xim hloov
- Loj shagreen (txiv kab ntxwv tev)
- Streaks ntawm cov kua roj vanish los yog puag
- Cracking ntawm paintwork (erosion)
- Huab cua ("apples")
- Peeling xim los yog kua roj vanish
- nroj tsuag
- Tshem tawm qhov tsis xws luag hauv tsheb tha xim nrog koj tus kheej tes: kws tshaj lij kev xav
- Feem ntau cov tsheb xim tsis xws luag
- Matte me ntsis tshwm tom qab pleev xim lub tsheb
- Technology rau tshem tawm qhov tsis xws luag hauv tsheb painting
Teeb meem tom qab lub cev ua haujlwm tuaj yeem zam tau yog tias koj xav txog yam uas ua rau kev sib yuav. Tsis tas li ntawd, ntau yam teeb meem tsis tshwm sim tam sim ntawd, tab sis tom qab qee lub sijhawm.
Cov teeb meem hauv kev pleev xim lub tsheb yog ib txwm muaj rau cov neeg pib tshiab thiab cov neeg pleev kob paub txog. Txawm hais tias siv cov ntaub ntawv zoo, kev thov kom raug ntawm cov kua sib tov, tsis muaj kev lees paub tias txheej txheej ntawm lub tshuab yuav du thiab tsis muaj qhov tsis zoo.
Car painting defects: hom thiab ua
Teeb meem tom qab lub cev ua haujlwm tuaj yeem zam tau yog tias koj xav txog yam uas ua rau kev sib yuav. Tsis tas li ntawd, ntau yam teeb meem tsis tshwm sim tam sim ntawd, tab sis tom qab qee lub sijhawm.
Kev kos duab
Cov pom kab ntawm khawb nyob rau hauv ib txheej ntawm cov kua roj vanish. Lawv tshwm sim ntawm lub hauv paus xim thaum lub sij hawm kawg polymerization ntawm kua formulations.
Yam tseem ceeb:
- Ua txhaum txoj cai kev pheej hmoo kho mob.
- Tshaj lub thickness ntawm primer los yog putty.
- Tsis zoo ziab ntawm cov khaubncaws sab nraud povtseg.
- Kev faib ua feem ntawm cov thinners lossis hardeners tsis raug.
- Kev siv cov khoom tsis zoo.
Drawdown feem ntau pom ob peb lub lis piam tom qab kho.
Boiling kua roj vanish
Qhov teeb meem zoo li me me dawb dots nyob rau saum npoo ntawm lub cev. Qhov no yog vim lub fact tias thaum lub sij hawm evaporation cov kuab tshuaj froze nyob rau hauv daim ntawv ntawm npuas.
Qhov teeb meem no tshwm sim hauv cov xwm txheej hauv qab no:
- thov ib tug loj npaum li cas ntawm cov kua roj vanish;
- siv ntau yam ntawm nws hom nyob rau hauv ib qhov chaw;
- ceev kom qhuav nrog lub chamber tshwj xeeb lossis teeb.
cov qhov tsua
Cov xim ntawm lub tsheb no yog cov kev nyuaj siab zoo li funnel uas tuaj yeem ncav cuag qhov loj txog li 3 hli. Qee lub sij hawm ib qho primer pom ntawm lawv hauv qab. Kev sib yuav kuj hu ua "fisheye".
Yam tseem ceeb:
- tsis txaus degreasing ntawm lub cev;
- siv cov khoom tu tsis zoo (xws li tshuaj zawv plaub hau);
- ingress ntawm roj thiab dej hais los ntawm lub compressor rau txau txheej;
- teeb tsa phom cua tsis raug;
- remnants ntawm silicone ntawm lub qub txheej.
Raws li qhov tshwm sim, cov khoom siv quav ciab, roj lossis polish lo rau lub tsheb enamel. Craters yog tsim thaum lub sij hawm txau ntawm cov xim pleev xim los yog tom qab kev kho mob zaum kawg.
Hologram effect
Txoj kev sib yuav no pom meej meej hauv lub hnub ci. Nws tshwm sim vim yog siv lub tshuab teb ntawm kev kub ceev thiab cov khoom siv tsis zoo (hnav polishing log, coarse abrasive paste). Ib qho kev mob tshwm sim ntawm lub hologram kuj ua rau kev kho mob ntawm daim tawv nqaij nrog microfiber qias neeg.
Qhov chaw punctures
Cov teeb meem no hauv lub tsheb cov xim pleev xim tom qab pleev xim zoo li qhov me me ntawm qhov chaw. Tsis zoo li craters, qhov muaj cov npoo du thiab ntse.
Local lub cev painting
Punctures tshwm sim vim yog siv cov polyester sealants tsis zoo los yog tsis quav ntsej cov xuab zeb ntawm qhov ntxeem tau.
Cov tsos ntawm npuas
Qhov no yuav tshwm sim thaum staining los yog thaum kawg ntawm txoj kev no. Yog tias cov hlwv nyob ib leeg, ces lawv yog tshwm sim los ntawm micro-kev pheej hmoo ntawm cov hlau. Thaum muaj npuas ntau, qhov laj thawj tseem ceeb rau lawv cov tsos yog dej, roj, noo noo ntawm qhov chaw lossis ua haujlwm nrog putty siv txoj kev "ntub".
Cov nyhuv wrinkling
Xim tuaj yeem nqa thiab ntsws ntawm txhua qhov chaw ntawm lub tsheb. Cov cheeb tsam "Chewed" muaj cov qauv xuab zeb thiab hais tau hais tias halos, qhov twg cov khoom siv polymerization tau tshwm sim. Qhov teeb meem yog tshwm sim los ntawm incompatibility ntawm cov khoom qub thiab tshiab hnyav, tsis txaus ziab ntawm "substrate", daim ntawv thov ntawm tuab txheej ntawm painting.
dej stains
Qhov teeb meem no manifests nws tus kheej nyob rau hauv daim ntawv ntawm round marks nyob rau saum npoo ntawm lub cev. Qhov no tshwm sim vim cov kua tau txais ntawm cov kua roj vanish ua ntej kom qhuav, los yog ib tug hardener ntxiv rau lub enamel.
Xim hloov
Qhov tshwm sim no tuaj yeem tshwm sim tam sim lossis qee lub sijhawm tom qab kho. Yog vim li cas:
- priming nrog cov khoom tsis zoo;
- tsis ua raws li qhov kev faib ua feem thaum ntxiv hardener;
- xim tsis raug;
- tsis muaj kev sib khi zoo ntawm putty thiab reactive primers;
- Qhov chaw tsis huv los ntawm bitumen, resins, noog excrement thiab lwm yam reagents.
Yog li ntawd, lub hauv paus ntxoov ntxoo ntawm txheej yog txawv heev los ntawm cov ntaub ntawv pleev xim.
Loj shagreen (txiv kab ntxwv tev)
Xws li ib txheej muaj cov xim tsis zoo, ntau qhov kev nyuaj siab me me thiab cov qauv ntxhib. Qhov teeb meem tshwm sim thaum siv:
- tuab tuab;
- volatile hnyav;
- ntau dhau los yog tsis txaus ntawm cov kua roj vanish;
- LCP nrog qhov kub thiab txias.
- phom phom deb dhau ntawm qhov khoom;
- sprayer nrog lub nozzle loj thiab tsis tshua muaj kev ua haujlwm siab.
Txoj kev sib yuav no nyuaj heev kom tshem tawm tag nrho. Nws tshwm sim txawm nyob rau hauv lub tsheb nrog lub Hoobkas painting.
Streaks ntawm cov kua roj vanish los yog puag
Qhov tshwm sim yog tus cwj pwm los ntawm thickenings ntawm lub cev nrog cov xim pleev xim ua haujlwm los ntawm cov inclined thiab ntsug panels ntawm lub tsheb. Yog vim li cas:
- Enamel los yog puag ntawm qias neeg.
- Cov xim pleev xim.
- Tshaj maj mam evaporating hnyav.
- Kaw cov tshuaj tsuag qhov deb.
- Kev tsis sib xws ntawm kev sib tov.
Sagging tshwm sim thaum cov khoom siv los yog cov khoom siv txias heev (hauv qab 15 degrees).
Cracking ntawm paintwork (erosion)
Qhov teeb meem tshwm sim thaum cov kua roj vanish qhuav deformed. Qhov yuav tsum tau ua ua ntej rau cov kab nrib pleb hauv cov kua roj vanish yog tsis ua raws li kev tswj hwm qhov kub thiab txias, ua kom qhuav nrog kev pab los ntawm improvised txhais tau tias thiab siv ntau dua hardener.
Huab cua ("apples")
Qhov tsis xws luag yog tsis pronounced turbidity ntawm qhov chaw. Thaum illuminated, matte kab txaij thiab me ntsis pom ntawm lub cev tsis yog gloss. Yog vim li cas:
- ua txhaum txoj cai ntawm painting;
- thov cov kua roj vanish rau qhov sib tov "ntub";
- hnyav hnyav;
- cov khoom siv tsis raug;
- cov cua ntsawj ntshab hauv chav los yog qhov cua tsis txaus.
Haze tshwm sim tsuas yog thaum siv lub hauv paus nplej. Qhov no yog qhov tshwm sim ncaj ncees ntawm kev sib xyaw nrog qhov ntxoov ntxoo ntawm "metallic grey".
Peeling xim los yog kua roj vanish
Qhov teeb meem yog vim tsis zoo adhesion ntawm txheej. Yog vim li cas:
- luv luv ziab ntawm qhov chaw;
- ua txhaum ntawm gradation los ntawm abrasives;
- yas ua tsis muaj primers;
- tsis ua raws li kev faib ua feem ntawm cov kev daws teeb meem.
Vim tsis zoo adhesion, cov xim pleev xim pib "tev tawm" thiab txawm poob thaum lub tsheb tsiv.
nroj tsuag
Cov kev tsis zoo no hauv kev pleev xim ntawm lub tsheb tom qab pleev xim tshwm sim thaum ua tiav ntawm txoj kev, hauv kev cob qhia lossis hauv chaw nres tsheb.
Tsheb painting thiab straightening
Associated Factors ntawm khib nyiab Settling:
- chav plua plav;
- tsis muaj qhov cua;
- khaub ncaws qias neeg;
- tsis quav ntsej qhov pom ntawm cov khoom los ntawm ib lub lim dej.
Nws yog tsis yooj yim sua kom tshem tawm tag nrho cov nroj tsuag txawm nyob rau hauv kaw chav.
Tshem tawm qhov tsis xws luag hauv tsheb tha xim nrog koj tus kheej tes: kws tshaj lij kev xav
Lub rooj qhia cov kev daws teeb meem rau txhua rooj plaub.
| Kev sib yuav | Kho qhov teeb meem |
| Drawdown | Tshiab primer + tshiab enamel daim ntawv thov |
| Boiling kua roj vanish | Staining nrog "slow" thinner |
| Crater | Polishing nrog anti-silicone roj + siv lub hauv paus tshiab |
| Hologram | Varnish thaj chaw |
| Qhov chaw punctures | Repainting |
| dej stains | Daim ntawv thov ntawm lub hauv paus tshiab lossis ua tiav kev hloov ntawm cov xim pleev xim rau hauv cov ntaub ntawv ntawm corrosion |
| Xim hloov | |
| npuas | |
| wrinkling | Repainting nrog sealants |
| Shagreen | Coarse xuab zeb + polishing |
| smudges | Sanding nrog ib tug bar los yog nplua sandpaper |
| Kev tawg | Ua tiav kev hloov ntawm primer thiab paintwork |
| Lacquer peeling | Tshem tawm cov khaubncaws sab nraud povtseg, polishing nrog txhaj tshuaj blasting lossis sandpaper, daim ntawv thov tshiab enamel |
| nroj tsuag | Plua plav hauv cov kua roj vanish - polishing, hauv paus - painting |
Hauv daim ntawv no, cov teeb meem tseem ceeb uas cov neeg pleev kob feem ntau tau ntsib.
Feem ntau cov tsheb xim tsis xws luag
Thaum ua haujlwm tiav, qee qhov teeb meem feem ntau ntsib.
smudges. Lawv tshwm sim vim qhov tsis sib xws ntawm kev siv cov xim pleev xim, qhov tsis sib xws ntawm cov kev daws teeb meem, cov xim ntau dhau ntawm qhov chaw thiab qhov chaw tsis raug ntawm cov xim pleev xim.
Cov nplej. Nws tshwm sim tom qab hmoov av tau nyob ntawm thaj chaw kho mob. Txhawm rau tiv thaiv qhov teeb meem, ua kom tiav hauv chav tsis muaj cua ntsawj ntshab. Siv cov khoom sib tov nrog rab phom siab siab (200-500 bar). Siv cov ntxaij lim dej zoo.
Ntev curing paintwork. Qhov no tshwm sim thaum cov kuab tshuaj ntau dhau ntxiv los yog vim qhov txias txias. Qhov teeb meem yog tshem tawm los ntawm kev ziab ntawm qhov kub thiab txias rau cov enamel.
Matte me ntsis tshwm tom qab pleev xim lub tsheb
Lawv tuaj yeem tsim rau ntawm txhua qhov chaw, tab sis feem ntau tshwm sim hauv thaj chaw nrog putty. Hauv cov chaw no, cov enamel yog absorbed ntau zog dua li lwm qhov chaw.
Ua rau:
- Ib txheej nyias ntawm lacquer.
- High atmospheric humidity.
- cov ntawv sau.
- Tsis tshua muaj kub hauv qhov chaw ua haujlwm (tsawg dua + 15 ° C).
- Kev sib tov tsis raug.
- hnyav hnyav.
Cov stains tuaj yeem o yog tias tsis tshem tawm los ntawm polishing, rov ua kom du thiab siv cov kua sib xyaw.
Technology rau tshem tawm qhov tsis xws luag hauv tsheb painting
Raws li cov lus pom zoo ntawm cov kws tshaj lij, nws yog qhov zoo dua los kho cov teeb meem tom qab ib hlis, thiaj li tsis ua haujlwm ntxiv. Qhov no yog vim lub fact tias cov paintings los ntawm lub sij hawm no yuav ua kom tiav tag nrho cov polymerization nrog nto. Qee qhov tsis xws luag hauv tsheb painting raws li GOST (piv txwv li, drawdown) yuav tshwm sim tom qab cov kua roj vanish tau qhuav tag.
Ces pib kho cov teeb meem. Cov txheej txheem muaj kev sib tsoo, abrasive thiab tiv thaiv polishing.
Kev sib tsoo yog ua los ntawm "ntub" thiab "qhuav". Hauv thawj kis, kev ua haujlwm yog ua tiav nrog dej, ntawv xuab zeb, grater thiab txhais tau tias improvised. Txoj kev qhuav yog nqa tawm siv lub tshuab orbital. Txoj cai gradation yuav tsum raug soj ntsuam (thawj, cov khoom siv nrog cov nplej loj, tom qab ntawd nrog cov me me).
Painting tshuab
Abrasive polishing yog nqa tawm siv 2-3 pastes thiab npuas roj hmab voj voog. Ua ntej tshem tag nrho cov xuab zeb xuab zeb. Tom qab ntawd, ib txheej ntawm paste 40x40 cm loj yog siv rau hauv cheeb tsam thiab ncig ncig.
Yog tias koj paub tias muaj qhov tsis xws luag thaum pleev xim lub tsheb thiab yuav ua li cas tshem tawm lawv, ces tus neeg tsav tsheb yuav txuag nws cov nyiaj, sijhawm thiab cov hlab ntsha. Koj tsis tas yuav tiv tauj lub khw kho, vim qhov teeb meem tuaj yeem kho tau ntawm koj tus kheej tes.
