Kana vanhu vazhinji vachitenga mapuranga akavharwa nemavara, havazive misiyano chaiyo pakati pemabhodhi akavharwa nemavara asina kunaka, nekuti nzvimbo dzakafanana, uye hapazove nematambudziko kana akasashandiswa nguva yenguva.Pane zvinhu zvakawanda zvekufunga nezvazvo pakusarudza jira, iro rinonyanya kusanganisira rudzi rwekupfeka, ukobvu hwekuputira, ruvara rwekupfeka uye gloss.Mukuwedzera, dzimwe nguva zvinodiwa zveprimer uye kumashure kwekuputira kwekuputira zvinofanira kufungwa.Mhando dzemachira anoshandiswa parizvino mahwendefa esimbi ane mavara anosanganisira polyester coating (PE), fluorocarbon coating (PVDF), silicon modified coating (SMP), high weather resistance coating (HDP), acrylic coating, Polyurethane coating (PU), plastisol. kupfeka (PVC), nezvimwewo.
Polyester (PE, Polyester)
PE coatings ine yakanaka kunamatira kune zvinhu.Mahwendefa esimbi ane mavara ari nyore kugadzirisa uye kuumbwa.Izvo zvakachipa uye zvine zvigadzirwa zvakawanda.Pane sarudzo yakawanda yemavara uye glosses.Polyester coatings haina kunaka kune ultraviolet mwenje kuramba uye upfu kuramba kweiyo firimu rekuvhara.Naizvozvo, kushandiswa kwePE machira kuchiri kudikanwa kuve pasi pezvimwe zvirambidzo.Inowanzo shandiswa munzvimbo dzine kusvibiswa kwemhepo kusina kukomba kana kune zvigadzirwa zvinoda maitiro akawanda ekuumba.
▲ Maindasitiri anoshanda
Zvigadzirwa zvemaindasitiri zvakajairwa uye nzvimbo dzekuchengetera zvinhu uye zvekuchengetedza zvinhu hazvikonzere kukora kune mahwendefa emavara pachazvo, uye hazvina zvakakwirira zvinodikanwa zvekudzivirira kusimba uye anti-kuchembera kwemavara mahwendefa.Kunyanya kufunga kunopiwa kune kushanda uye kudhura-kubudirira kwekuvakwa kwefekitari.
Silicone Yakagadziridzwa Polyester (SMP, Silicone Mobified Polyester)
Sezvo polyester ine mapoka anoshanda -OH/-COOH, zviri nyore kuita nemamwe mapolymer compounds.Kuti uvandudze kumira kwechiedza chezuva uye hupfu hwePE, silicone resin ine yakanakisa kuchengetedza kwemavara uye kupisa kupisa inoshandiswa kuita denaturation reaction., uye denaturation reshiyo yePE inogona kuva pakati pe5% ne50%.SMP inopa kusimba kuri nani kwemahwendefa esimbi, uye hupenyu hwayo hwekudzivirira ngura hunogona kureba semakore gumi-gumi nemaviri.Ehe, mutengo wayo wakakwira kupfuura iwo wePE, asi nekuda kwesilicone resin Iko kunamatira uye kugadzirisa kuumbwa kwechinhu hakuna kunaka, saka SMP mavara-akavharwa simbi mahwendefa haana kukodzera kune zviitiko zvinoda maitiro akawanda ekugadzira, uye ari. inonyanya kushandiswa kuvaka matenga nemadziro ekunze.
Yakakwirira-inodzivirira mamiriro ekunze polyester (HDP, Yakakwirira yakasimba Polyster)
Nezve zvikanganiso zvePE neSMP, British HYDRO (yava kuwanikwa neBASF), Swedish BECKER nevamwe vakagadzira HDP polyester coatings iyo inogona kuwana 60-80% yemamiriro ekunze ekupikisa kwePVDF machira mukutanga kwa2000, uye ari nani pane akajairwa nesilicon akagadziridzwa.Polyester coating, kunze kwayo kwekunze kuramba kunosvika makore gumi nemashanu.Yakanyanya-inodzivirira mamiriro ekunze polyester resin inoshandisa monomers ine cyclohexane chimiro panguva yekubatanidza kuwana chiyero pakati pekuchinjika, kuramba mamiriro ekunze uye mutengo weresin.Non-aromatic polyols uye polybasic acids anoshandiswa kuderedza kutorwa kweUV mwenje neresin., kuti uwane kukwirira kwemamiriro ekunze kupikisa kwekuputira.
UV inopinza uye yakavharirwa amines (HALS) inowedzerwa kune fomula yependi kuvandudza kupikisa kwemamiriro ekunze kwefirimu repende.Iyo yakakwira-inodzivirira mamiriro ekunze epolyester coil coil yakazivikanwa nemusika kunze kwenyika, uye machira acho anodhura zvakanyanya.
▲ Maindasitiri anoshanda
Non-ferrous metal smelters (mhangura, zinc, aluminium, lead, etc.) mumagetsi emagetsi nemagetsi emagetsi ndiyo inonyanya kuoma kuhupenyu hwebasa remahwendefa emavara.Zvidyarwa zveSimbi, zvidyarwa zvemagetsi, nezvimwe zvinogadzirawo midhiya inoodza, inoda kupikisa kwepamusoro kwemavara emavara.
PVC plastisol (PVC Plastisol)
PVC resin ine mvura yakanaka kuramba uye makemikari kuramba.Kazhinji inopendwa nepamusoro yakasimba.The coating ukobvu iri pakati 100-300μm.Inogona kupa yakapfava PVC yekuputira kana mwenje embossing kurapwa kwe embossed coating.;Sezvo iyo PVC yekuputira firimu iri thermoplastic resin uye ine yakakwira firimu ukobvu, inogona kupa chengetedzo yakanaka kune ndiro yesimbi.Zvisinei, PVC ine simba risina simba rekudzivirira.Yainyanya kushandiswa muEurope mumazuva ekutanga, asi nekuda kwehurombo hwayo hwemamiriro ekunze, ikozvino inoshandiswa zvishoma uye zvishoma.
Fluorocarbon PVDF
Nekuda kwesimba rakasimba rechisungo pakati pekemikari zvisungo zvePVDF, iyo coating ine yakanaka kwazvo corrosion resistance uye kuchengetedza ruvara.Pakati pemapepa esimbi akaiswa pendi anoshandiswa muindasitiri yekuvaka, ndicho chigadzirwa chepamberi uye chine huremu hukuru hwemamorekuru.Iyo ine yakananga chisungo chimiro, saka kunze kwekupikisa kwemakemikari, ine zvakare yakasarudzika ma mechanical properties, UV kuramba uye kupisa kupisa.Mumamiriro ezvinhu akajairwa, hupenyu hwayo hwekudzivirira ngura hunogona kusvika makore 20-25.Mumakore achangopfuura, fluorine-ine resins copolymerized ne chlorotrifluoroethylene uye vinyl ester monomers ave akakurumbira muChina uye anoshandiswa zvakanyanya mukuvaka ekunze madziro uye simbi mapaneru.Nekuda kwekushandiswa nyore nyore hydrolyzable vinyl ester monomers uye fluorine zvirimo, iwo akadzikira makumi matatu muzana pane PVDF.Zvingangoita %, saka pane imwe mukaha pakati pekuramba kwemamiriro ekunze nePVDF.Iyo PVDF yemukati yefluorocarbon coating inogadzirwa neBaosteel haisi pasi pe70% (yasara iacrylic resin).
▲ Maindasitiri anoshanda
Zvigadzirwa muindasitiri yemakemikari zvinoshanduka uye zvinogara zvichigadzira zvinhu zvinoparadza zvakanyanya senge acids kana alkalis.Kana akaiswa mumvura, madonhwe edova anogona kuumba zviri nyore uye kunamatira pamusoro peplate yeruvara, achishatisa kuvharwa kweplate reruvara uye pamwe nekuiwedzera kuipa.kune zinc layer kana kunyange ndiro yesimbi.
02Performance yekuenzanisa tafura yeakasiyana machira
Pane zvinhu zviviri zvakakosha pakusarudza kwekutanga.Imwe ndeyekutarisa kusungirirwa kweiyo primer, topcoat uye substrate, uye imwe yacho ndeyokuti iyo primer inopa yakawanda yekudzivirira kusimba kwejasi.Kubva pakuona uku, epoxy resin ndiyo yakanakisa sarudzo.Kana iwe ukafunga kuchinjika uye UV kuramba, unogona zvakare kusarudza polyurethane primer.Nokuda kwechifukidzo chemashure, sarudzo yakanyatsonaka ndeyokusarudza chimiro chemavara maviri kana ruvara rwesimbi yakavharwa yakashandiswa sendiro imwe chete, kureva, imwe mutsara wemashure ekutanga uye imwe yevhavha yepamusoro.Iyo pende yepasi yakafanana nepende yepamberi, uye jasi repamusoro ndiro jira rechiedza-ruvara (sechena) polyester.Kana iyo simbi-yakavharwa ndiro yakashandiswa seyakaumbwa kana sandwich pani, inokwana kuisa dhizaini ye epoxy resin kumusana nekunamira kwakanakisa uye corrosion resistance.
03Coating gloss kusarudzwa
❖Kupenya hakusi chiratidzo chekushanda.Kufanana neruvara, inongova chiratidzo.Muchokwadi, pendi (kupfeka) iri nyore kuwana yakakwira gloss.Nekudaro, iyo yakakwira-gloss pamusoro iri kupenya uye kupenya kwakakwirira kwechiedza chezuva mukati mezuva kunogona kukonzera kusvibiswa kwechiedza (vanhu vazhinji havashandisi girazi keteni madziro izvozvi nekuda kwekusvibiswa kwechiedza).Mukuwedzera, iyo yakakwirira-gloss yepamusoro ine diki friction coefficient uye iri nyore kutsvedza, iyo inogona kukonzera nyore njodzi njodzi panguva yekuvaka denga.;Chiratidzo chekutanga chekuchembera kwemavara-akavharwa mahwendefa esimbi paanoshandiswa kunze kurasikirwa kwekupenya.Kana kugadziriswa kuchidiwa, zviri nyore kusiyanisa pakati pekare uye itsva mahwendefa esimbi, zvichiita kuti chitarisiko chisina kunaka;kana pende yekumashure iri-high-gloss, halo ichaitika nyore nyore kana pane chiedza mukati.Kuneta kwevashandi.Saka, mumamiriro ezvinhu akajairika, mavara-akavharidzirwa simbi mahwendefa ekuvaka anoshandisa svikiro uye pasi gloss (30-40 madhigirii).
04Coating ukobvu kusarudzwa
Microscopically, iyo yekupfekedza chimiro cheporous.Mvura uye corrosive media (chlorine ions, etc.) mumhepo ichapinda nepakati pezvikamu zvisina simba zvekuputira, zvichikonzera kuora pasi pefirimu, uye ipapo kuvhara kuchaita blister uye kubvisa.Mukuwedzera, kunyange nehupamhi hwehuputi hwakafanana, chechipiri chifukidziro chakaoma kudarika chekutanga.Zvinoenderana nemishumo yekune dzimwe nyika uye yakakodzera corrosion bvunzo mhedzisiro, kumberi kweiyo 20 μm kana kupfuura kunogona kudzivirira kupindira kweiyo corrosion media.Sezvo maanti-corrosion maitiro eprimer netopcoat akasiyana, kwete chete kuwanda kwefirimu kunofanirwa kutsanangurwa, asiwo maprimers anofanirwa kudiwa zvakasiyana (》 5μm) uye topcoat (》15μm).Nenzira iyi chete inogona kupikisa corrosion yezvikamu zvakasiyana-siyana zveplate yesimbi yakavharwa inove nechokwadi kuti yakaenzana.
Zvigadzirwa zvePVDF zvinoda machira akakora.Nokuti inoda kupa hupenyu hurefu hwehupenyu hwehupenyu.Izvo zvinodikanwa zvekupfekedza kumashure zvinoenderana nekushandisa, nemasangweji mapaneru anongoda chete bondable primer.Iyo yakaumbwa simbi ndiro inodawo maviri akaturikidzana nekuda kweiyo indoor corrosive nharaunda.Ukobvu hunenge 10μm.
Coating color kusarudzwa (kusimbisa kwakawedzerwa!)
Kusarudzwa kwemuvara kunonyanya kuenderana nekuenzanisa nemhoteredzo yakapoteredza uye zvinhu zvemuridzi.Zvisinei, kubva pane unyanzvi hwekuona, mavara-mavara ane mavara ane sarudzo huru yemavara.Inorganic pendi ine simba repamusoro inogona kusarudzwa (senge titanium dioxide, nezvimwewo), uye yependi Kugona kuratidza kupisa kwakasimba (iyo coefficient yekuratidzira inopeta kaviri yependi yakasviba).Kupisa kwekuputira pachako kunenge kwakaderera muzhizha, izvo zvinobatsira kuwedzera hupenyu hwekuputira.Mukuwedzera, kunyange kana kupfeka kuchichinja ruvara kana hupfu, kusiyana pakati pemucheka wakajeka-ruvara uye ruvara rwepakutanga ruchava ruduku, uye kukanganisa pakuonekwa hakuzove kwakakosha.Mavara akasviba (kunyanya mavara akajeka) anowanzo organic mavara, ayo ari nyore kupera kana akaiswa mumirairo ye ultraviolet, uye anogona kushandura ruvara mukati memwedzi mitatu.Zvinoenderana neakakodzera data rekuyedza, kana tembiricha yekunze yakakwira zvakanyanya masikati muzhizha, nzvimbo chena inotonhorera gumi madhigirii kupfuura yebhuruu uye 19 madhigirii anotonhorera pane dema.Mavara akasiyana ane kugona kwakasiyana kuratidza chiedza chezuva.
05 color reflectivity reflection effect
Kune mavara-akavharwa simbi mahwendefa, kazhinji iwo kupisa kwekuwedzera kwemazinga ekuputira uye ndiro yesimbi zvakasiyana, kunyanya mutsara wekuwedzera coefficients wesimbi substrate uye organic coating zvakasiyana kwazvo.Kana iyo ambient tembiricha yachinja, iyo yekubatanidza interface pakati pe substrate nejasi ichachinja.Kuwedzera kana kudzvinyirira kushushikana kunoitika, uye kana isina kudzoreredzwa zvakanaka, kuputika kwekuputira kuchaitika.Baosteel vakaita 8-year exposure test muHainan yerudzi rwependi imwechete, mupi wependi mumwechete, uye mavara akasiyana.Mhedzisiro yacho yakasimbisawo kuti pendi ine ruvara rwakareruka haina kusarudzika.
06 gloss ruvara musiyano wepakutanga ukobvu iko zvino
Mukuwedzera, pano tinoda kutsanangura kusanzwisisana kuviri pamusoro pekusarudza mumusika wemazuva ano wepamba:
Kutanga, kune parizvino nhamba huru yevachena primers muChina.Chinangwa chekushandisa chena primer ndechekudzikisa ukobvu hwetopcoat, nekuti yakajairika corrosion-resistant primer yekuvaka ndeyeyero-yegirini (saka iyo strontium chromate pigment), uye panofanirwa kuve neukobvu hwetopcoat hwakakwana kuti uve nesimba rekuhwanda.Izvi zvine njodzi pakurara.Kutanga, iyo primer ine urombo husina kunaka hwekuramba, uye chechipiri, iyo topcoat yakatetepa zvakanyanya, isingasviki 10 microns.Mahwendefa esimbi akadaro ane mavara anotaridzika akajeka, asi achaora munzvimbo dzakasiyana (kucheka, kubhenda, pasi pefirimu, nezvimwewo) mumakore asingasviki maviri.
Yechipiri isimbi yakavharwa nemavara inoshandiswa pakuvaka.Iyo purojekiti imwechete inoshandisa mavara-akavharwa simbi mahwendefa kubva kune vakasiyana vagadziri uye mabheti akasiyana.Mavara anoita seanopindirana panguva yekuvaka, asi mushure memakore akawanda ekuvhenekerwa kwezuva, mavara ezvipfeko zvakasiyana uye vagadziri vanochinja.Kune mienzaniso yakawandisa yemaitiro akasiyana anotungamira kune yakakomba misiyano yemavara.Kunyangwe kana zvigadzirwa zvichibva kumutengesi mumwe chete, zvinokurudzirwa zvakanyanya kuisa odha yepurojekiti imwechete kamwechete, nekuti nhamba dzakasiyana dzebatch dzinogona kushandisa zvigadzirwa kubva kune vakasiyana coating vatengesi, zvichiwedzera mukana wekusiyana kwemavara.
Kusarudzwa kwezvinhu zvinonzwisisika hakungowedzere hupenyu hwesevhisi yechivako, asi zvakare kuderedza mutengo, nekudaro kuve neushamwari hwezvakatipoteredza uye kuchengetedza zviwanikwa.
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Iyo kambani Taishan Industrial Development Group Co., Ltd.
Isu tichagara tichiomerera kune iyo sevhisi tenet yemhando yekutanga uye mutengi kutanga, kupa vatengi zvigadzirwa zvakanakisa, uye tinoita zvese zvatinogona kuchengetedza mari yevatengi.Zvichienderana nemamiriro ekushandiswa kwezvinhu uye mutengo wekugadzira dhizaini, tinokurudzira kushandiswa kweanodhura-anodhura Taishan Inc color coating, Maanshan Iron uye Steel color coating uye Shougang color coating.Zvigadzirwa zvakajairika zvePE zvinogona kushandiswa kweanenge makore gumi, uye zvigadzirwa zvePVDF zvinogona kugara kwemakore makumi maviri kusvika makumi maviri nemashanu.Yakanaka uye yakasimba, inoita kuti fekitori yako iwedzere kunaka.Kambani yedu inopa imwe-kumira kugadzira, kugadzirisa, uye kutengesa masevhisi, ichishandira vatengi mukati mese maitiro kubva pakubvunza kwevatengi kusvika kune yakatevera application.
Nguva yekutumira: Sep-21-2023