1.Vim li cas lub lightfastness cuam tshuam tom qab kov-up?
Core shortcoming: tsis tiav txheej system
Cov txheej txheem qub yog ib qho ua tiav: substrate → chemical conversion txheej (tseem ceeb tiv thaiv - xeb foundation) → primer (muaj zog adhesion) → topcoat (weather resistance). Txhua txheej ua haujlwm ua ke.
Ntawm -qhov chaw kov-up: feem ntau tsuas yog 1-2 lub tsho sab saum toj tuaj yeem siv tom qab ntxuav. Cov tshuaj hloov pauv txheej thiab cov primer tshwj xeeb yog ploj lawm, thiab lub hauv paus adhesion tsis muaj zog.
Cov txheej txheem thiab kho mob yog txawv heev
Thawj lub Hoobkas: pleev xim los ntawm cov menyuam, ci ntawm qhov kub siab tshaj 200 degree, cov xim zaj duab xis yog tuab thiab tag nrho hla- txuas.
Ntawm -qhov chaw kov- nce: phau ntawv txhuam hniav / tshuaj tsuag, kho kom zoo ntawm chav tsev kub. Lub uniformity, ceev, thiab℃ntawm curing ntawm cov xim zaj duab xis yog heev txo, uas ncaj qha cuam tshuam lub peev xwm los tiv thaiv ultraviolet rays thiab chalking.
Cov teeb meem ntawm cov khoom sib txuam
Nws yog ib qho nyuaj rau nrhiav tau ib tug refinishing xim uas yog raws nraim tib yam tshuaj muaj pes tsawg leeg thiab huab cua tsis kam raws li cov thawj txheej. Ordinary alkyd pleev xim kho PVDF fluorocarbon topcoat, cov nyhuv yog ua txhua yam tsis zoo. Cov khoom siv ntxiv xws li UV absorbers hauv cov xim pleev xim kuj feem ntau tsis zoo.
2.Yuav ua li cas ua kom cov nyhuv ntawm kov -paj pleev xim?
Kev kho deg (tus yuam sij rau kev vam meej):
Ntxuav thiab polishing: Siv cov ntawv xuab zeb zoo (xws li 400 #) los txhuam cov khawb rau hauv "feathered edges", nthuav thaj chaw kho mob, thiab tshem tawm cov plua plav tag.
Tsom ntsoov rau kev tiv thaiv xeb: Yog tias cov hlau substrate raug, koj yuav tsum xub siv "tiv thaiv- xeb primer rau cov ntawv galvanized" lossis "epoxy zinc-nplua nuj primer" kom npog tag nrho cov hlau raug.
Kev xaiv cov khoom siv:
Thawj qhov kev xaiv: hu rau xim -coated yob tus neeg muag khoom kom tau txais cov xim qub qub.
Qhov kev xaiv thib ob: Siv lub npe zoo -paub lub npe ntawm sab nraum zoov acrylic polyurethane xim lossis fluorocarbon xim kho tus neeg saib xyuas, uas muaj cov huab cua tsis zoo.
Txuj kev tsim kho:
Ua nyob rau hauv qhuav, nruab nrab huab cua.
Siv "ntau lub tsho nyias nyias" kom ntseeg tau tias txhua txheej qhuav ua ntej siv txheej tom ntej.
3.Yuav ua li cas kho qhov chaw me me khawb ntawm lub ru tsev / phab ntsa zoo tib yam (tsis yog- ib puag ncig tshuaj)?
Kev kho kom nruj raws li cov txheej txheem saum toj no tuaj yeem siv los ua tus nqi -txoj kev txij nkawm zoo, uas tuaj yeem ncua kev xeb thiab txhim kho qhov tsos. Txawm li cas los xij, nws yuav tsum lees paub tias qhov sib txawv ntawm cov xim thiab chalking yuav tshwm sim yav tom ntej, thiab nws yuav tsum tau kho dua.
4.Yuav ua li cas kho qhov tseem ceeb hauv cov cheeb tsam uas muaj corrosive heev xws li kev lag luam tshuaj thiab cov chaw ntug dej hiav txwv?
Kov- cov xim pleev xim tsuas yog ib qho kev ntsuas kub ntxhov ib ntus xwb, thiab cov tshuaj corrosion yuav nkag mus sai sai los ntawm cov ntsiab lus tsis muaj zog.
Cov kev daws teeb meem tseem ceeb yog hloov tag nrho lub vaj huam sib luag, lossis hloov nws nrog cov khoom siv corrosion ntau dua (xws li FRP, stainless hlau).
5.Nyob rau hauv cov ntsiab lus, qhov kov - pleev xim zoo li cas?
Kov- pleev xim tuaj yeem "kho qhov zoo li" thiab "muab luv- tiv thaiv lub sijhawm," tab sis nws lub teeb nrawm thiab tag nrho cov kav ntev tsis tuaj yeem muab piv nrog cov txheej txheem qub thiab yog cov txheej txheem kev kho, kev kho degraded.