Polymer txheej yog lub sijhawm tshwj xeeb los tiv thaiv cov hlau. Qhov no yog txoj hauv kev zoo tshaj plaws thiab niaj hnub los tiv thaiv corrosion, uas sai dua los yog tom qab tseem tshwm sim ntawm cov khoom hlau.
Yuav ua li cas?
txhawm rau txhim kho cov khoom ua haujlwm ntawm cov hlau, cov khoom siv polymers tuaj yeem ua rau qee yam mob. Cov coatings no yog cov khoom sib xyaw qhuav raws li cov hmoov zoo dispersion, uas ntxiv rau hardeners, fillers thiab pigments ntxiv. Cov txheej txheem polymer raug xaiv los ua kom muaj kev tiv thaiv ntawm cov hlau tsis yog lub caij nyoog: hlau ua hluav taws xob, vim li ntawd, tus nqi raug xa mus rau cov khoom, uas ua rau tsim cov khoom siv hluav taws xob. Nws attracts hmoov hais, kom lawv nyob rau saum npoo ntawm lub workpiece. Ib qho tshwj xeeb ntawm cov txheej txheem polymer yog qhov siab ntawm kev tiv thaiv rau txhua yam kev cuam tshuam. Tsis tas li ntawd, nws zoo nkauj txaus nyiam.
YYuav ua li cas polymerization ua haujlwm
Lub khw hmoov txheej muaj ob peb ntu:
- thaj chaw npaj khoom: kom cov txheej txheem polymer yogthov kom raug thiab sib npaug, cov khoom siv hlau yog thawj zaug huv si ntawm plua plav, xeb, av. Nws raug nquahu kom siv cov xuab zeb zoo thiab phosphating. Cov kauj ruam yuav tsum tau - degreasing cov hlau nto.
- Spray booths: painting yog ua ncaj qha rau hauv lub rooj tshuaj tsuag. Lub chamber yog thermal, nws muaj peev xwm ua kom kub txog li 200 degrees thiab sov li sib npaug. Cov hmoov pib yaj, vim yog txheej txheej txawm thiab du yog tsim los ntawm tag nrho cov saum npoo ntawm cov hlau, thiab nws cov pores kuj tau sau.
- Lub polymerization ntawm cov khoom yog nqa tawm nyob rau hauv lub txias chamber: ntawm no qhov kub thiab txias maj mam poob, thiab cov polymer zaj duab xis yuav nyuaj. Tom qab 24 teev, cov txheej txheem polymer yog npaj siv.
Coloring thev naus laus zis: dab tsi yog qhov taw qhia
hmoov txheej yog nqa tawm hauv ob peb theem. Thaum xub thawj, qhov chaw ua tiav. Nws yog ib qho tseem ceeb heev uas cov khoom siv hlau raug ntxuav kom huv si ntawm cov av, oxides, thiab degreasing ntawm qhov chaw yuav ua rau muaj kev ua kom zoo dua qub. Tom qab kev npaj, lub npog ntsej muag tau ua tiav, uas yog, cov ntsiab lus ntawm cov khoom siv hlau uas cov hmoov sib xyaw yuav tsum tsis txhob poob rau hauv qhov zais.
Cov khoom yuav tsum tau ua tiav yog dai rau ntawm qhov kev thauj mus los, ces xa mus rau lub rooj pleev xim. Tom qab txau, ib txheej hmoov yog tsim rau ntawm cov hlau. Nyob rau theem polymerization, txheej txheej yog tsim, uas yog melting ntawm cov xim txheej.
Dab tsinta?
Hlau kho nrog cov txheej txheem polymer yog qhov txawv ntawm kev ntseeg tau thiab muaj zog ntxiv. Qhov no tau piav qhia los ntawm qhov tseeb tias lub kaw lus monolithic zaj duab xis yog tsim uas npog tag nrho cov khoom ntawm cov khoom thiab khov kho rau nws. Ua tsaug rau cov txheej txheem polymer, cov hlau muaj:
- siab adhesion rau saum npoo;
- siab zog thiab hnav tsis kam;
- ntev kev pab cuam lub neej thaum tuav cov khoom qub;
- xim xim;
- fast production cycle.
Hlau polymer txheej yog ua los ntawm ntau yam ntaub ntawv thiab xim hmoov. Kev xaiv ntawm ib yam khoom yog nyob ntawm lub hom phiaj ntawm cov txheej txheem siv, qhov tseem ceeb ntawm cov khoom zoo li cas.
YPolyester
Polyester feem ntau yog siv rau polymer txheej ntawm hlau. Qhov no yog ib qho khoom siv pheej yig nrog rau qib siab ntawm kev hloov pauv, kev tsim kho, ntxiv rau, nws tuaj yeem siv rau txhua qhov kev nyab xeeb. Polyester-based polymer coated ntawv yog UV resistant thiab corrosion resistant. Cov ntaub ntawv tsim cov yeeb yaj kiab zoo thiab ruaj khov rau ntawm qhov chaw, kom cov nplooj ntawv steel raug xa mus zoo raws li kev thauj mus los.
Matt polyester kuj yog siv dav: txheej txheej muaj qhov tuab me me, thiab cov hlau saum npoo yog matte. Lub peculiarity ntawm cov khoom no yog nyob rau hauv siabxim ceev ceev, zoo tiv thaiv corrosion thiab mechanical stress.
YPlastisol
Lwm qhov nrov polymer txheej ntawm cov hlau yog plastisol. Raws li ib feem ntawm cov khoom siv kho kom zoo nkauj - polyvinyl chloride, plasticizers; externally, nws attracts xim nrog ib tug embossed nto. Qhov no yog cov txheej txheem kim tshaj plaws, thiab tib lub sijhawm feem ntau tiv taus kev puas tsuaj rau cov khoom siv vim lub thickness loj ntawm txheej. Ntawm qhov tod tes, cov khoom siv tsis muaj qhov kub thiab txias, thiab yog li ntawd, nyob rau hauv lub hnub ci ntawm qhov kub thiab txias, cov txheej yuav deteriorate. Vim lub thickness loj, corrosion kuj ntawm plastisol yog siab.
Pural-raws li polymer-coated steel, uas muaj cov txheej txheem silky-matte, yog nrov. Kev tiv thaiv kub thiab tshuaj lom neeg ua rau cov khoom siv no nrov rau kev ua haujlwm hlau.
yam ntxwv ntawm cov xim coated steel
Cov khoom siv nrog cov txheej txheem polymer - nyob rau hauv lub zog, formability, siab corrosion kuj. Tom qab ua tiav, cov hlau tau txais qhov zoo nkauj zoo nkauj, uas tuaj yeem muab cov xim thiab ntxoov ntxoo. Rolled cov khoom yog ua raws li GOST, lub polymer txheej yog zoo. Cov khoom siv pleev xim tuaj yeem muaj ib- lossis ob txheej txheej, cov kev xaiv muaj peev xwm ua tau thaum cov khoom siv rau ntawm ib lossis ob sab. Ua tsaug rau cov txheej txheem polymer, kev ua haujlwm ntawm cov hlau zoo tuaj:
- xim-coated hlau tuaj yeem ua tiav rau hauv cov khoom tiav;
- txheej yog sib npaug ntawm qhov chaw, yog li kev tiv thaiv qib sib xws;
- tsis muaj pores yog tus yuam sij rau qib kev tiv thaiv zoo;
- steel muaj adhesion zoo;
- hlau tuaj yeem khaws cov khoom tiv thaiv thiab kho kom zoo nkauj rau ntau tshaj 10 xyoo.
Los ntawm qhov kev xav ntawm kev lag luam, galvanized steel nrog cov txheej txheem polymer yog qhov muaj txiaj ntsig ntau dua: ua ntej, nws ua rau muaj txiaj ntsig zoo thiab ua haujlwm zoo, vim tias cov nqi ntawm cov txheej txheem txo qis. Qhov thib ob, tus neeg yuav khoom tsis tas yuav nqis peev hauv kev ua cov hlau ntxiv los tiv thaiv nws qhov chaw. Nco ntsoov tias cov khoom tiv thaiv corrosion ntawm galvanized steel, uas tau kho nrog cov txheej txheem polymer, nyob ntawm qhov tuab ntawm txheej. Txhawm rau ua kom muaj kev pabcuam lub neej ntawm cov khoom siv hlau, lawv tau coated nrog ob txheej ntawm polymer, uas ua rau kev tiv thaiv hlau ntau dua.
Cov Ncauj Lus
Polymer txheej yog ib zaj duab xis uas muaj tag nrho cov yam ntxwv ntawm kev ua tau zoo. Pre-painted dov cov khoom yog ua los ntawm ntau hom polymers. Txhua yam khoom ua tiav raws li txoj kev no - steel ntawv lossis mesh nrog cov txheej txheem polymer - yog tus cwj pwm los ntawm kev cuam tshuam, kev tiv thaiv corrosion thiab siab adhesion. Nws tseem yog ib qho tseem ceeb uas cov hmoov txheej tso cai rau koj ua rau saum npoo ntawm cov hlau txhua yam ntawm cov xim, nrog rau cov hnub nyoog cuav, piv txwv li, antique style.
Hnub no txoj kev xim no nrovdov steel, xws li Coil Txheej. Lub ntsiab lus ntawm txoj kev yog tias txheej txheej yog siv rau ntawm txoj kab automated, uas yog, cov nplooj ntawv ntawm cov khoom dov tau ua tiav ntawm txoj kab, tom qab uas lawv tau coated nrog cov tshuab rau cov menyuam. Cov thev naus laus zis no tau dhau los ua qhov dav vim tias tsis muaj cov ntaub ntawv poob, thiab cov kab nws tus kheej yog qhov ua tau zoo dua, thiab yog li ntawd tau txais txiaj ntsig.
Raws li lwm yam ua tiav, koj thawj zaug yuav tsum tau npaj qhov chaw, tom qab ntawd nws tau pleev xim rau. Cov tshuab no tso cai rau kev ua haujlwm zoo ntawm cov hlau, txhuas thiab tinplate. Yog li, txheej txheej polymer yog lub sijhawm los txhim kho kev ua haujlwm ntawm cov hlau, ua kom nws cov khoom tiv thaiv thiab ua kom lub neej ua haujlwm ntev.
