Izindaba

Lapho abantu abaningi bethenga amabhodi anamabalazwe, abawazi umehluko oqondile phakathi kwamabhodi anemibala enemibala namabhodi anombala ompofu, ngoba izindawo ezingaphezulu ziyefana, futhi ngeke zibe khona izinkinga uma zingasetshenziselwa isikhathi.Kunezici eziningi okufanele zicatshangelwe lapho ukhetha i-coating, okubandakanya ikakhulukazi uhlobo lokugqoka, ukushuba kokugqoka, umbala wokugcoba kanye ne-coating gloss.Ngaphezu kwalokho, ngezinye izikhathi izidingo ze-primer kanye ne-back coating of the coating kufanele zicatshangelwe.Izinhlobo zokumboza okwamanje ezisetshenziselwa amapuleti ensimbi afakwe umbala zihlanganisa i-polyester coating (PE), i-fluorocarbon coating (PVDF), i-silicon modified coating (SMP), i-high weather resistance (HDP), i-acrylic coating, i-Polyurethane coating (PU), i-plastisol i-coating (PVC), njll.

I-Polyester (PE, I-polyester)

Izingubo ze-PE zinokunamathela okuhle ezintweni.Amapuleti ensimbi afakwe umbala kulula ukucubungula nokuma.Ashibhile futhi anemikhiqizo eminingi.Kukhona ukukhetha okubanzi kwemibala nama-glosses.Izembatho ze-polyester azifaneleki ukumelana nokukhanya kwe-ultraviolet kanye nokumelana ne-powdering yefilimu yokugqoka.Ngakho-ke, ukusetshenziswa kwezingubo ze-PE kusadingeka kube ngaphansi kwemikhawulo ethile.Ngokuvamile isetshenziswa ezindaweni lapho ukungcoliswa komoya kungembi kangako noma emikhiqizweni edinga izinqubo eziningi zokubumba.

▲ Izimboni ezisebenzayo

Izitshalo ezivamile zezimboni kanye nezindawo zokugcina izimpahla kanye nempahla akubangeli ukugqwala kwamapuleti ombala ngokwawo, futhi azinazo izidingo eziphakeme zokumelana nokugqwala nokulwa nokuguga kwamapuleti ombala.Ukucatshangelwa okwengeziwe kunikezwa ekusebenzeni kanye nokusebenza kahle kwezindleko zokwakhiwa kwefekthri.

I-Silicone Modified Polyester (SMP, I-Silicone Mobified Polyester)

Njengoba i-polyester iqukethe amaqembu asebenzayo -OH/-COOH, kulula ukusabela namanye ama-polymer compounds.Ukuze kuthuthukiswe ukumelana nokukhanya kwelanga kanye nezakhiwo zempushana ze-PE, i-silicone resin enokugcina umbala omuhle kakhulu nokumelana nokushisa isetshenziselwa ukusabela kwe-denaturation., futhi isilinganiso se-denaturation se-PE singaba phakathi kuka-5% no-50%.I-SMP inikeza ukuqina okungcono kwamapuleti ensimbi, futhi impilo yayo yokuvikela ukugqwala ingaba yinde iminyaka eyi-10-12.Yiqiniso, intengo yayo iphakeme kunaleyo ye-PE, kodwa ngenxa ye-silicone resin I-adhesion and processing formability of the material ayilungile, ngakho-ke amapuleti ensimbi ahlanganiswe ngombala we-SMP awafanele izikhathi ezidinga izinqubo eziningi zokwakha, futhi esetshenziswa kakhulu ukwakha uphahla nezindonga zangaphandle.

I-polyester ephezulu emelana nesimo sezulu (i-HDP, i-Polyster ehlala isikhathi eside)

Ngokuphathelene nokushiyeka kwe-PE ne-SMP, i-HYDRO yaseBrithani (manje etholwe yi-BASF), i-BECKER yaseSweden nabanye bathuthukise i-HDP polyester coatings engakwazi ukufeza ukumelana nesimo sezulu esingu-60-80% sezingubo ze-PVDF ekuqaleni kuka-2000, futhi zingcono kunezijwayelekile ze-silicon eziguquliwe.I-polyester enamathela, ukumelana kwayo nesimo sezulu sangaphandle kufinyelela eminyakeni engu-15.I-polyester resin ekwazi ukumelana nesimo sezulu isebenzisa ama-monomers aqukethe isakhiwo se-cyclohexane ngesikhathi sokuhlanganiswa ukuze kuzuzwe ibhalansi phakathi kokuguquguquka, ukumelana nesimo sezulu kanye nezindleko ze-resin.Ama-polyols anganuki nama-polybasic acid asetshenziselwa ukunciphisa ukumuncwa kokukhanya kwe-UV ngenhlaka., ukufeza ukumelana nesimo sezulu esiphezulu sokumboza.

Ama-absorber ama-UV kanye nama-amine avinjiwe (i-HALS) ayengezwa kufomula kapende ukuze kuthuthukiswe ukumelana nesimo sezulu sefilimu kapende.Amakhoyili e-polyester amelana kakhulu nesimo sezulu aqashelwe yimakethe phesheya, futhi ukumboza kuyabiza kakhulu.

▲ Izimboni ezisebenzayo

Izincibilikisi zensimbi ezingenayo insimbi (ithusi, i-zinc, i-aluminium, umthofu, njll.) ezimbonini ze-metallurgy namandla kagesi ziyinselele kakhulu empilweni yesevisi yamapuleti ombala.Izitshalo zensimbi, izimboni zamandla, njll. nazo zikhiqiza imidiya edlayo, edinga ukumelana nokugqwala okuphezulu kwamapuleti ombala.

I-PVC plastisol (PVC Plastisol)

I-PVC resin inokumelana okuhle kwamanzi nokumelana namakhemikhali.Ngokuvamile kupendwe ngokuqukethwe okuqinile okuphezulu.Ubukhulu bokunamathela buphakathi kuka-100-300μm.Ingahlinzeka nge-PVC enamathelayo ebushelelezi noma ukwelashwa kwe-embossing okulula kokunamathela okuqoshiwe.;Njengoba ifilimu yokumboza i-PVC iyinhlaka ye-thermoplastic futhi inogqinsi oluphakeme lwefilimu, inganikeza ukuvikeleka okuhle kwepuleti lensimbi.Kodwa-ke, i-PVC inokumelana nokushisa okubuthakathaka.Yayisetshenziswa kakhulu eYurophu ezinsukwini zokuqala, kodwa ngenxa yezindawo zayo ezingezinhle zemvelo, okwamanje isetshenziswa kancane kancane.

I-Fluorocarbon PVDF

Ngenxa yamandla ebhondi aqinile phakathi kwamabhondi amakhemikhali e-PVDF, ukunamathela kunokumelana nokugqwala okuhle kakhulu nokugcinwa kombala.Phakathi kwezingubo zepuleti zensimbi ezipendwe ngaphambili ezisetshenziswa embonini yezokwakha, kungumkhiqizo othuthuke kakhulu futhi unesisindo esikhulu samangqamuzana.Inokwakheka kwebhondi eqondile, ngakho-ke ngaphezu kokumelana namakhemikhali, ibuye ibe nezakhiwo ezivelele zemishini, ukumelana ne-UV nokumelana nokushisa.Ngaphansi kwezimo ezijwayelekile, impilo yayo yokuvikela ukugqwala ingafinyelela eminyakeni engama-20-25.Eminyakeni yamuva nje, ama-resin aqukethe i-fluorine ahlanganiswe ne-chlorotrifluoroethylene kanye ne-vinyl ester monomers adumile e-China futhi asetshenziswa kabanzi ekwakheni izindonga zangaphandle namaphaneli ensimbi.Ngenxa yokusetshenziswa kwama-vinyl ester monomers atholakala kalula nge-hydrolyzable kanye nokuqukethwe kwe-fluorine, aphansi ngo-30% kune-PVDF.Cishe amaphesenti, ngakho-ke kukhona igebe elithile phakathi kokumelana nesimo sezulu kanye ne-PVDF.Okuqukethwe kwe-PVDF kwe-fluorocarbon coating ekhiqizwa yi-Baosteel ayikho ngaphansi kwama-70% (okusele kuyi-acrylic resin).

▲ Izimboni ezisebenzayo

Imikhiqizo embonini yamakhemikhali iyashintshashintsha futhi ijwayele ukukhiqiza izinto eziguquguqukayo ezigqwala kakhulu njengama-asidi noma ama-alkali.Uma echayeke emanzini, amazolo angakheka kalula futhi anamathele ebusweni bepuleti lombala, onakalise uqweqwe lwepuleti lombala futhi ngokunokwenzeka aligxumeke nakakhulu.kungqimba lwezinc noma ipuleti lensimbi.

02Ithebula lokuqhathanisa lokusebenza lezingubo ezihlukene

Kunezici ezimbili ezibaluleke kakhulu zokukhethwa kwama-primers.Enye iwukucabangela ukunamathela kwe-primer, i-topcoat ne-substrate, kanti enye iwukuthi i-primer inikeza iningi lokumelana nokugqwala kokugqoka.Kusukela kulo mbono, i-epoxy resin iyisinqumo esingcono kakhulu.Uma ucabangela ukuguquguquka nokuphikiswa kwe-UV, ungaphinda ukhethe i-polyurethane primer.Ukuze uthole i-back coating, ukukhetha okulungile kakhulu ukukhetha isakhiwo esinezingqimba ezimbili uma ipuleti yensimbi efakwe umbala isetshenziswa njengepuleti elilodwa, okungukuthi, ungqimba olulodwa lwe-primer yangemuva kanye nesendlalelo esisodwa se-back topcoat.Upende oyisisekelo ufana nopende wangaphambili, futhi ijazi eliphezulu liyingqimba ye-polyester enombala okhanyayo (njengemhlophe).Uma ipuleti yensimbi enombala isetshenziswa njengephaneli eliyinhlanganisela noma isangweji, kwanele ukusebenzisa ungqimba lwe-epoxy resin ngemuva ngokunamathela okuhle kakhulu nokumelana nokugqwala.

03 Ukukhetha i-gloss yokugqoka

❖Ukucwebezela akusona isikhombi sokusebenza kwe-coating.Njengombala, kuwumfanekiso nje.Eqinisweni, upende (ukugcoba) kulula ukufeza isicwebezelisi esiphezulu.Kodwa-ke, indawo ecwebezelayo ephezulu iyacwebezela futhi ukukhanya kwelanga okuphakeme kakhulu emini kungabangela ukungcoliswa kokukhanya (abantu abaningi abasebenzisi izindonga zamakhethini ezingilazi manje ngenxa yokungcola kokukhanya).Ngaphezu kwalokho, i-high-gloss surface ine-coefficient encane ye-friction futhi kulula ukushelela, engabangela kalula izingozi zokuphepha ngesikhathi sokwakhiwa kophahla.;Uphawu lokuqala lokuguga kwamapuleti ensimbi afakwe umbala uma esetshenziswa ngaphandle ukulahlekelwa isicwebezelisi.Uma kudingekile ukulungiswa, kulula ukuhlukanisa phakathi kwamapuleti ensimbi amadala namasha, okuholela ekubukekeni okubi;uma upende wangemuva ucwebezela kakhulu, i-halo izokwenzeka kalula uma kunokukhanya endlini.Ukukhathala okubukwayo kwabasebenzi.Ngakho-ke, ngaphansi kwezimo ezijwayelekile, amapuleti ensimbi afakwe umbala wokwakha asebenzisa i-gloss ephakathi nendawo (30-40 degrees).

04 Ukukhetha ukujiya kokugqoka

Nge-Microscopically, ukugqoka kuyisakhiwo esinezimbotshana.Amanzi kanye nemidiya ebolayo (i-chlorine ion, njll.) emoyeni izongena ezingxenyeni ezibuthakathaka ze-coating, ibangele ukugqwala ngaphansi kwefilimu, khona-ke ukugqoka kuzoqhuma futhi kukhishwe.Ngaphezu kwalokho, ngisho nobukhulu obufanayo bokugqoka, ukugqoka kwesibili kuminyene kunokwembatho okuyinhloko.Ngokwemibiko yangaphandle kanye nemiphumela yokuhlolwa kokugqwala efanele, ukumbozwa kwangaphambili okungama-20 μm noma ngaphezulu kungavimbela ngempumelelo ukungena kwemidiya egqwalayo.Njengoba izindlela zokunqanda ukugqwala ze-primer nejazi langaphezulu zihlukile, akumele kucaciswe kuphela ubukhulu befilimu obuphelele, kodwa nama-primer kufanele adingeke ngokwehlukana (》 5μm) nejazi eliphezulu (》15μm).Kungale ndlela kuphela lapho ukumelana nokugqwala kwezingxenye ezihlukene zepuleti yensimbi efakwe umbala kungaqinisekiswa ukuthi kulinganiselwe.

Imikhiqizo ye-PVDF idinga ama-coatings amakhulu.Ngoba idinga ukunikeza isiqinisekiso sempilo ende yesevisi.Izidingo zokumboza emuva zincike ekusetshenzisweni, ngamaphaneli e-sandwich adinga kuphela i-primer eboshiwe.Ipuleti lensimbi elakhiwe futhi lidinga izendlalelo ezimbili zokugqoka ngenxa yemvelo egqwalayo yasendlini.Ubukhulu okungenani buyi-10μm.

Ukukhethwa kombala wokumboza (kugcizelelwe!)

Ukukhethwa kombala kusekelwe ikakhulukazi ekufaniseni indawo ezungezile kanye nokuzilibazisa komnikazi.Kodwa-ke, ngokombono wezobuchwepheshe, amapende anombala okhanyayo anokukhethwa okukhulu kwezingulube.Opende bezinto ezingaphili abanokuqina okuphakeme bangakhethwa (njenge-titanium dioxide, njll.), kanye nopende Amandla okubonisa ukushisa anamandla (i-coefficient yokubonisa iphinda kabili kapende omnyama).Izinga lokushisa lokugqoka ngokwalo liphansi kakhulu ehlobo, okuzuzisa ukukhulisa impilo yokugqoka.Ngaphezu kwalokho, ngisho noma ukugqoka kushintsha umbala noma izimpushana, umehluko phakathi kombala okhanyayo nombala wokuqala uzoba mncane, futhi umthelela ekubukeni ngeke ube ophawulekayo.Imibala emnyama (ikakhulukazi imibala egqamile) ngokuvamile inemibala ephilayo, okulula ukufiphala lapho ichayeke emisebeni ye-ultraviolet, futhi ingashintsha umbala esikhathini esingangezinyanga ezi-3.Ngokusho kwedatha yokuhlola efanele, lapho izinga lokushisa langaphandle liphezulu kakhulu emini ehlobo, indawo emhlophe iba ngama-degree angu-10 epholile kunendawo eluhlaza okwesibhakabhaka no-19 degrees epholile kunendawo emnyama.Imibala ehlukene inamakhono ahlukene okubonisa ukukhanya kwelanga.

05 umphumela wokubonisa umbala

Kumapuleti ensimbi ahlanganiswe ngombala, ngokuvamile amazinga okushisa okunwebeka okunamathelayo kanye nepuleti lensimbi ahlukile, ikakhulukazi ama-coefficients omugqa wokunwebeka we-substrate yensimbi kanye ne-organic coating ahluke kakhulu.Lapho izinga lokushisa le-ambient lishintsha, ukuxhumana phakathi kwe-substrate ne-coating kuzoshintsha.Ukwanda noma ukucindezeleka kokunciphisa kwenzeka, futhi uma kungakhululwa kahle, ukuqhekeka kwe-coating kuzokwenzeka.U-Baosteel wenze isivivinyo sokuchayeka seminyaka engu-8 e-Hainan sohlobo olufanayo lopende, umhlinzeki ofanayo wopende, nemibala ehlukene.Imiphumela iphinde yaqinisekisa ukuthi opende abanemibala ekhanyayo banokushintshashintsha kombala okuncane.

06 umehluko wombala weglosi ukujiya kwangempela manje ukujiya

Ngaphezu kwalokho, lapha singathanda ukuchaza ukungaqondi kahle okubili mayelana nokukhetha emakethe yasekhaya yamanje:

Okokuqala, okwamanje kunenani elikhulu lama-primer amhlophe e-China.Inhloso yokusebenzisa i-primer emhlophe ukunciphisa ukujiya kwejazi langaphezulu, ngoba i-primer evamile evimbela ukugqwala ukuze kwakhiwe iphuzi-luhlaza (yingakho i-strontium chromate pigment), futhi kufanele kube nogqinsi olwanele lwe-topcoat ukuze ube namandla amahle okucasha.Lokhu kuyingozi kakhulu ekumelaneni nokugqwala.Okokuqala, i-primer inokumelana nokugqwala okubi, futhi okwesibili, ijazi eliphezulu lincishisiwe kakhulu, ngaphansi kwama-microns ayi-10.Amapuleti ensimbi anemibala enjalo abukeka ekhanyayo, kodwa azogqwala ezindaweni ezahlukene (ukusika, ukugoba, ngaphansi kwefilimu, njll.) esikhathini esingaphansi kweminyaka emibili.

Eyesibili izingcwecwe zensimbi ezinamekwe ngombala ezisetshenziswa emisebenzini yokwakha.Iphrojekthi efanayo isebenzisa amapuleti ensimbi anombala avela kubakhiqizi abahlukene namaqoqo ahlukene.Imibala ibonakala ivumelana ngesikhathi sokwakhiwa, kodwa ngemva kweminyaka eminingana yokuchayeka elangeni, imibala yezingubo ezihlukene nabakhiqizi iyashintsha.Kunezibonelo eziningi kakhulu zamathrendi ahlukene aholela ekuhlukeni okukhulu kwemibala.Ngisho noma imikhiqizo ivela kumphakeli ofanayo, kunconywa kakhulu ukuthi ufake i-oda lephrojekthi efanayo ngesikhathi esisodwa, ngoba izinombolo ze-batch ezihlukene zingasebenzisa imikhiqizo evela kubahlinzeki abahlukahlukene be-coating, okwandisa amathuba okuhluka kombala.

Ukukhethwa kwezinto ezinengqondo akukwazi nje ukwandisa impilo yesevisi yesakhiwo, kodwa futhi kunciphise izindleko, ngaleyo ndlela kube nobungane ngempela bemvelo kanye nokonga izinsiza.

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I-Taishan Industrial Development Group Co., Ltd.
Sizohlala sinamathela kumgomo wesevisi wekhwalithi kuqala futhi ikhasimende kuqala, sinikeze amakhasimende ngemikhiqizo engcono kakhulu, futhi senze konke okusemandleni ethu ukonga izindleko kumakhasimende.Ngokuya ngendawo yokusetshenziswa kwezinto kanye nezindleko zedizayini yezakhiwo, sincoma ukusetshenziswa kombala ongabizi kakhulu we-Taishan Inc, i-Maanshan Iron ne-Steel color coating kanye ne-Shougang color coating.Imikhiqizo ejwayelekile ye-PE ingasetshenziswa okungenani iminyaka eyi-10, kanti imikhiqizo ye-PVDF ingahlala iminyaka engama-20 kuya kwengama-25.Yinhle futhi ihlala isikhathi eside, yenza imboni yakho ibe yinhle kakhulu.Inkampani yethu ihlinzeka ngokukhiqiza okukodwa, ukucubungula, kanye nezinsizakalo zokuthengisa, isebenzela amakhasimende kuyo yonke inqubo kusukela embuzweni wamakhasimende kuya ekufakweni kwakamuva.