1.Yuav ua li cas lub substrate yuav tsum pretreated?
Degreasing thiab Tu: Siv cov tshuaj alkaline lossis nruab nrab ntxuav, tshem tawm cov roj, plua plav, roj stamping, thiab lwm yam kab mob los ntawm cov phaj hlau los ntawm kev txau lossis immersion.
Kev Ntxuav Dej: Siv ntau-theem dej txau kom tshem tawm cov khoom seem thiab cov khoom tsis huv.
Chemical Conversion Coating Treatment (Nto Passivation):
Purpose: To form a dense, strongly adhering non-metallic crystalline film on a clean metal surface, significantly improving corrosion resistance and coating adhesion.
Hom Lub Npe:
Kev kho chromate: Ib txwm siv thiab ua tau zoo, tab sis muaj cov chromium hexavalent, raug txwv ib puag ncig nruj, thiab tau maj mam hloov.
Chromium-Kev Kho Mob Dawb: Cov khoom siv tseem ceeb tam sim no, tus phooj ywg ib puag ncig. Xws li:
Zirconium/Titanium-raws li Kev Kho Mob: Siv oxides ntawm cov hlau xws li zirconium thiab titanium los ua ib zaj duab xis hloov dua siab tshiab.
Kev kho Silane: Organic -inorganic hybrid technology, adhesion zoo heev.
Composite Oxide Treatment: Ib qho kev sib xyaw ua ke ntawm ntau cov chromium- dawb hlau ntsev.
2.Yuav ua li cas rau painting kev kho mob?
Primer:
Ib tug primer yog siv rau ntawm lub conversion txheej. Nws lub luag haujlwm tseem ceeb yog kev tiv thaiv corrosion thiab txhim kho qhov adhesion ntawm topcoat.
Hom primer: Epoxy resin, polyester resin, polyurethane, thiab lwm yam., feem ntau muaj xeb -inhibiting pigments (xws li zinc phosphate).
Topcoat:
Siv raws li txheej txheej sab nrauv, muab cov xim kawg, gloss, huab cua tsis kam, thiab cov khoom siv physicochemical tshwj xeeb (xws li khawb tsis kam thiab acid / alkali tsis kam).
Topcoat hom sib txawv, nrog cov khoom sib txawv:
Polyester: General-lub hom phiaj, nqi-zoo, thiab nrog huab cua tsis zoo.
Silicone- hloov polyester: Cov huab cua zoo dua thiab ua haujlwm ntev dua li cov qauv polyester, haum rau lub tsev sab nrauv.
High -hnyav polyester / fluorocarbon: Zoo heev sab nraum zoov huab cua tsis kam, muaj zog xim thiab gloss tuav.
Polyvinylidene fluoride (PVDF): Ib qho kev lees paub ultra- huab cua tiv thaiv txheej, feem ntau yog siv nyob rau hauv ib puag ncig hnyav xws li siab - kawg cov tsev thiab tshav dav hlau.
Yas sol: tuab txheej, zoo zoo, muaj zog corrosion kuj thiab khawb tsis kam, feem ntau siv hauv cov khoom siv hauv tsev thiab cov nroj tsuag.
3.Yuav ua li cas rau kev tshaj tawm -kev ua haujlwm thiab kev ua haujlwm tshwj xeeb?
Lamination / Txheej:
Daim Ntawv Thov Tiv Thaiv Zaj Duab Xis: Npog lub npoo coated nrog ib zaj duab xis peelable los tiv thaiv khawb thaum thauj thiab ua haujlwm.
Lamination: Bonding PVC, PET, los yog lwm yam yas zaj duab xis, los yog ntoo grain / pob zeb lis zoo nkauj zaj duab xis, rau cov xim -coated steel ntawv siv cov nplaum kom ua tau tshwj xeeb zoo nkauj los thiab textures (xws li imitation ntoo grain xim-coated steel sheets).
Embossing: Imprinting nrog cov qauv chais thaum lub txheej tsis txias txias los tsim textures xws li tawv los yog txiv kab ntxwv tev, sib txuas lus zoo nkauj nrog lub peev xwm los npog me me khawb.
Kev luam ntawv: Siv cov luam ntawv digital thiab lwm yam thev naus laus zis, luam ntawv cov qauv nyuaj lossis cov duab tus kheej rau xim -coated steel ntawv.
4.Cov txheej txheem suav nrog dab tsi?
Substrate → Degreasing → Ntxuav → Chemical Conversion → Drying/Cooling → Primer Coating → Baking and Curing → Cooling → Topcoat Coating → Baking and Curing → Cooling → Post-kev kho (Lamination/Embossing, etc.) → Rolling/Shearing
5.Yuav ua li cas xaiv txoj kev kho saum npoo rau kev siv sib txawv?
Rau lub tsev ru tsev / phab ntsa: Polyester lossis silicone- hloov polyester tuaj yeem siv tau, nrog rau kev kho tus qauv.
Rau cov tsev nyob rau hauv ntug hiav txwv dej los yog cov chaw muaj kuab paug heev: High- huab cua- tiv taus polyester los yog PVDF txheej yog pom zoo, kom ntseeg tau chromium- dawb pretreatment zoo.
Rau cov cuab yeej siv: High-gloss, ntiv tes- tiv taus polyester lossis plastisol txheej yog feem ntau siv.
Rau cov ntawv thov uas xav tau kev kho kom zoo nkauj zoo nkauj: Laminated (ntoo grain, pob zeb lis) lossis cov khoom embossed muaj.