1.Yuav soj ntsuam thiab pretreat puas?
Txiav txim siab txog qhov: Qhov chaw rov ua dua yuav tsum tsis yog tsuas yog cov vuam nws tus kheej xwb, tab sis kuj yog qhov kub thiab txias - cov cheeb tsam cuam tshuam ntawm ob sab uas cov txheej txheej tau ua tsis tiav vim yog cua sov. Qhov no feem ntau txuas 20-50 mm rau txhua sab.
Kev npaj kev nyab xeeb: xyuas kom thaj chaw welded tau txias tag thiab ntxuav qhov chaw.
2.Yuav ua li cas kho nto?
Mechanical Treatment (Xav tau):
Cov cuab yeej: Siv lub tshuab hluav taws xob lub kaum sab xis nrog lub louvered lossis fiber ntau abrasive disc.
Lub Hom Phiaj: Ua tib zoo tshem tawm tag nrho cov weld slag, spatter, nplai, thiab ib qho xoob lossis blistering thawj txheej kom txog rau thaum lub teeb, nws yog xim hlau -luster substrate nto raug. Rau cov ntawv galvanized, txo qhov kev puas tsuaj rau ib puag ncig zoo galvanized txheej.
Ntxuav: Tshem tawm tag nrho cov plua plav thiab cov khib nyiab uas tsim thaum sib tsoo nrog cov ntaub huv, qhuav lossis cua compressed.
Tshuaj Kho Mob (Ntxiv ntxiv):
Yog tias qhov saum npoo yog oily, so nws nrog cov tshuaj ntxuav tshwj xeeb lossis cov kuab tshuaj (xws li acetone).
Kev pom zoo: Yog tias ua tau, tom qab sib tsoo thiab ntxuav, tshuaj tsuag lossis txhuam cov tshuaj phosphating los yog cov tshuaj kho tshwj xeeb ntawm cov hlau mus rau thaj tsam steel los txhim kho txheej adhesion thiab luv luv - tiv thaiv xeb.
Lub Xeev Kawg: Qhov chaw kho yuav tsum qhuav, huv si, tsis muaj roj, tsis muaj oxide txheej, thiab muaj qhov ntxhib nruab nrab.
3.Yuav ua li cas txheej txheej?
Thov ib tug tshwj xeeb kho primer:
Lub hom phiaj: Muab qhov yooj yim corrosion kuj thiab adhesion.
Kev xaiv khoom siv:
Epoxy Zinc-Primer nplua nuj: Kev xaiv zoo tshaj. Zinc hmoov muab kev tiv thaiv cathodic (zoo ib yam li cov zinc plating qub) thiab muaj qhov muaj zog corrosion kuj.
Epoxy Primer: Ntau yam ntau yam, nrog zoo adhesion thiab zoo heev corrosion kuj.
Ob -Cov Khoom Siv Polyurethane Primer: Cov huab cua tsis zoo thiab adhesion.
Daim ntawv thov: Thov sib npaug, tag nrho npog thaj tsam ntawm cov hlau raug thiab tsim nyog npog cov npoo uas nyob ib puag ncig (kwv yees li 5-10mm) los tsim qhov sib tshooj zoo. Xyuas kom tsim nyog txheej thickness.
Siv lub tsho loj nruab nrab (yeem tab sis pom zoo):
Lub hom phiaj: Ua kom cov txheej txheej tag nrho, txhim kho kev tiv thaiv thiab kev sib cais; theem saum npoo, muab lub hauv paus zoo ib yam rau topcoat.
Khoom siv: Epoxy micaceous hlau oxide nruab nrab lub tsho yog ib qho kev xaiv.
Daim ntawv thov: Thov tom qab cov primer qhuav tag.
Daim ntawv thov Topcoat:
Lub hom phiaj: Txhawm rau muab cov huab cua zaum kawg, kev zoo nkauj, thiab tshuaj lom neeg tsis kam.
Kev xaiv khoom siv:
Qhov tseem ceeb: Siv lub tsho sab saum toj nrog cov txheej txheem tshuaj raws li lossis sib haum nrog cov xim qub -coated vaj huam sib luag txheej thaum twg los tau. Piv txwv li, yog tias thawj lub vaj huam sib luag muaj PVDF fluorocarbon txheej, fluorocarbon kho xim yog nyiam; Yog tias nws muaj polyester txheej, yuav tsum siv cov xim pleev xim polyester.
Xim Matching: Cov xim yuav tsum tau tinted kom phim cov xim vaj huam sib luag qub kom pom kev zoo nkauj.
Daim ntawv thov: Tom qab lub hauv paus lub tsho yog qhuav tag, thov 1-2 lub tsho tiv no tusyees kom txog thaum tiav kev pab them nqi thiab cov yam xav tau thiab thickness tiav. Lub txheej yuav tsum txuas mus rau qhov chaw nyob ib puag ncig cov txheej txheem kom muaj kev hloov pauv.
4.Yuav ua li cas kho thiab tshuaj xyuas?
Curing: Cia cov txheej txheej kho kom zoo ntawm qhov kub thiab av noo. Ua raws li lub sijhawm kho tau teev tseg hauv cov lus qhia txog kev kho cov xim pleev xim, thiab tsis txhob los nag, tiv tauj nrog tshuaj, lossis kev puas tsuaj rau lub sijhawm no.
Kev tshuaj xyuas: Tom qab kho, tshuaj xyuas cov txheej txheem kom tsis tu ncua, tsis muaj qhov chaw ploj, tsis muaj kev khiav, thiab zoo adhesion.
5.Dab tsi yog cov ntsiab lus tseem ceeb uas yuav tsum nco ntsoov?
Daim ntawv teev cov cuab yeej: lub kaum sab xis grinder, sanding disc (60-120 grit), scraper, hlau txhuam, huv daim ntaub, compressed cua, txhuam los yog cov menyuam me.
Cov ntaub ntawv teev npe: Cov tshuaj ntxuav tshwj xeeb hlau, epoxy zinc- nplua nuj primer, topcoat sib piv cov thawj vaj huam sib luag (polyester/silicone- hloov polyester / PVDF kho xim), tsim nyog nyias.
Environmental Requirements: Siv cov txheej txheej hauv qhov chaw qhuav, tsis muaj -humidity, zoo- qhov cua nyob ib puag ncig. Tsis txhob ua haujlwm hauv nag, daus, cua daj cua dub, lossis tshav ntuj ncaj qha.
Kev Tiv Thaiv Kev Nyab Xeeb: Cov neeg ua haujlwm yuav tsum hnav lub qhov ncauj qhov ntswg, tsom iav, hnab looj tes, thiab lwm yam khoom siv tiv thaiv tus kheej.