PVDF cyangwa PE Umuzingo wa aluminiyumu usize amabara : Ni ubuhe butumwa bukora neza mu kubaka hanze?

Iyo uhisemo ibara ryometse kuri aluminiyumu yo kubaka, gushushanya, cyangwa imishinga yinganda, abaguzi bakunze guhura nikibazo gikomeye: guhitamo hagati ya Fluorocarbon PVDF (Polyvinylidene Fluoride) na PE (Polyester). Amahitamo yombi niyo yingenzi mumasoko, ariko aratandukanye cyane mubikorwa, kuramba, ikiguzi, hamwe nibisabwa. Guhitamo nabi birashobora gutuma amafaranga yo kubungabunga yiyongera, gusimburwa imburagihe, cyangwa kutuzuza ibisabwa byumushinga - byaba ibyo guhangana nikirere kibi cyo ku nkombe cyangwa kuguma mu ngengo yimari idahwitse.

Kugirango usobanure neza iki kibazo, ni ngombwa gutangirira kubisobanuro byibanze: Fluorocarbon PVDF nigikoresho kinini cyo mu bwoko bwa thermoplastique fluoropolymer kizwi cyane kubera guhangana n’ibidasanzwe by’ibidukikije, mu gihe PE (Polyester) ni impuzamikorere itandukanye, ihenze cyane ya polymer ifite agaciro keza ko gushushanya. Iyi myenda yombi ikora intego zinyuranye, kandi ntamahitamo 'meza ' ahuriweho-ahubgo, guhitamo neza biterwa ahanini nuburyo bwihariye bwumushinga wawe, harimo ibidukikije (urugero, inkombe ninyanja imbere, imbere murugo hanze) hamwe nimbogamizi zingengo yimari. Aka gatabo kagamije guca itandukaniro ryingenzi, ibisobanuro bya tekiniki, hamwe nibisabwa kugirango bifashe abaguzi gufata icyemezo kiboneye.

Niki PVDF Imizingo ya aluminiyumu isize amabara ?

PVDF ibara ryometse kuri aluminiyumu ni ibicuruzwa byo mu rwego rwo hejuru byakozwe mu gihe kirekire mu bidukikije bisaba ibidukikije. Ibihimbano byabo byibanze kuri 70% ya resin base, cyane cyane ukoresheje Kynar 500® (ifitwe na Arkema Inc.) cyangwa Hylar PVDF (ifitwe na Solvay Solexis Inc. Iyi 70% PVDF igipimo cya resin ntigishobora kuganirwaho kugirango ugere kubikorwa byumukono; formulaire iri munsi ya 70% PVDF yerekana kugabanya cyane kuramba no guhangana nikirere. Ibisigaye 30% mubisanzwe bigizwe na acrylic resin hamwe nubwiza buhebuje bwa organic organic pigment, byongerera imbaraga hamwe nibara ryamabara mugihe bikomeza uburinganire bwimiterere.

Imbaraga zingenzi za PVDF ibifuniko biri mumiterere ya molekuline: isano ya karubone-fluorine (CF) nimwe mubikomeye muri chimie organic, itanga PVDF kurwanya bidasanzwe imirasire ya UV, ubushuhe, umwanda w’imiti, nihindagurika ryubushyuhe. Bitandukanye nibindi bitwikiriye, PVDF irwanya guhiga imburagihe, kuzimangana, gukuramo, no gucika nubwo hashize imyaka ibarirwa muri za mirongo ibintu bibi. Irata kandi ibintu byo kwisukura bitewe nububasha buke bwo hejuru, bigatuma bigora umwanda kubyubahiriza.

Urebye izo mbaraga, PVDF ibara ryometse kuri aluminiyumu igenewe imishinga yo mu rwego rwo hejuru isaba kuramba no kwizerwa. Ibi birimo ibice byo mu rwego rwo hejuru byubatswe (nk'ibicu byubatswe n'inzu z'ubucuruzi zihenze), imishinga yo ku nkombe (aho umwuka wumunyu nubushuhe bwinshi bitera ingaruka zo kwangirika), hamwe n’inganda (zihura n’umwotsi w’imiti n’umwanda). Nibindi byatoranijwe kubwinyubako rusange isaba ubwiza bwubwiza nibikorwa byigihe kirekire.

Niki PE Imizingo ya aluminiyumu isize amabara ?

PE PVDF Sisitemu yabo yo gutwikamo ubusanzwe irimo 5-8 μ mm ya chromium idafite primer layer, 18-25 μm PE topcoat, hamwe na 5-7 μm ikingira ikingira, ikoreshwa hakoreshejwe uburyo bumwe bwo gutwikira kandi igateka hafi 200-220 ℃. Ibi bihimbano byibanda kuburinganire-gutanga imikorere ihagije kubidukikije bidakenewe mugihe ibicuruzwa bitanga umusaruro muke.

Imbaraga zingenzi za PE ibifuniko ni ibara ryihariye ryamabara adasanzwe, gloss flexible, hamwe nigiciro-cyiza. PE ibifuniko bitanga hejuru ya 200 RAL amahitamo yamabara, harimo ibyuma, matte, hamwe na gloss-gloss irangiza, bigatuma biba byiza mumishinga aho guhitamo ubwiza nibyiza. Barerekana kandi uburyo buhebuje, hamwe na T-bend ikizamini cya TT (bivuze ko ishobora kugororwa idacitse), bigatuma ikorwa neza kandi ikanatunganywa. Ikigaragara cyane, PE ats ibifuniko birigiciro 30-50% bihendutse kuruta PVDF ubundi buryo, bigatuma bahitamo neza kubikorwa byimishinga.

Isoko ryagenewe PE Ibi birimo imitako y'imbere (nk'igisenge cyo mu nzu hamwe n'imbaho ​​zo ku rukuta), ibyapa no kwerekana ibyerekanwa, hamwe n'ikirere cyoroheje cyo hanze (ahantu h'imbere h’umwanda muke, urumuri rw'izuba ruciriritse, kandi nta mwuka uhari). Birakwiranye kandi nuburyo bwigihe gito cyangwa ingengo yimishinga iciriritse yo guturamo, aho kumara igihe kirekire atari byo byibanze.

Kugereranya Tekiniki

Kuramba & Igihe Cyigihe

Itandukaniro rikomeye rya tekiniki hagati ya PVDF na PE impuzu ni igihe kirekire nubuzima bwa serivisi. PVDF ats ibifuniko, tubikesha imigozi ikomeye ya CF hamwe na 70% ya resin, itanga ubuzima bushimishije bwimyaka 20-30 - hamwe nibicuruzwa byiza cyane bimara imyaka 40 hamwe no kubifata neza. Byinshi PVDF -ibishishwa bya aluminiyumu bizana garanti yimyaka 30-40, byerekana imikorere yabo yigihe kirekire. Ibinyuranye, PE ats ibifuniko bifite igihe gito cyo kubaho cyimyaka 5-10 (cyangwa kugeza kumyaka 15 mugihe cyoroheje cyo murugo), kubera ko imikoranire yabo ya ester ikunda kwangirika biturutse kumirasire ya UV hamwe nibibazo byangiza ibidukikije mugihe runaka. Ibizamini bya laboratoire hamwe n’umurima byerekana ko PE ats gutwika bishobora gutangira gucika, kurigata, cyangwa gukuramo ibishishwa mugihe cyimyaka 5 iyo uhuye nizuba ryinshi cyangwa ubuhehere bukabije.

Kugumana Ibara

Kugumana amabara ni akandi gace PVDF iruta PE , ahanini bitewe n'imiterere ya molekile. Inkunga ya CF muri PVDF irahagaze neza kandi irwanya imirasire ya UV, niyo ntandaro yambere yamabara agabanuka. PVDF impuzu zigumana ubusugire bwa pigment nubwo zimaze igihe kinini zimurika nizuba ryinshi - ibizamini byakozwe nizuba rikabije rya Floride byerekana ko PVDF imyenda ikomeza guhindura ibara (ΔE) ritarenze 3 nyuma yimyaka icumi, ibyo bikaba bitagaragara mumaso yumuntu. Byongeye kandi, PVDF ats ibipapuro bipimisha QUV ishaje yamasaha arenga 4000 hamwe nigipimo cyo kugumana hejuru ya 90%, bikomeza kwemeza ibara ryabo. PE kurundi ruhande, rushingira kumashanyarazi ya UV hamwe na stabilisateur ya HALS kugirango bigabanuke buhoro, ariko imikoreshereze ya ester iracyavunika mugihe kinini cya UV, bigatuma habaho gutakaza amabara (ΔE> 8 mugihe cyimyaka 5 mubihe bimeze nkubutayu) kandi bigenda bikurikirana mugihe runaka.

Imiti & Kurwanya Kurwanya

Ku bijyanye no kurwanya imiti no kwangirika, PVDF ntagereranywa, bigatuma biba byiza kubidukikije. Imiterere ya molekile yuzuye hamwe na CF ituma irwanya umwuka wumunyu, imvura ya aside, imiti yinganda, nibindi bintu byangirika. Mu turere two ku nkombe, aho umwuka wuzuye umunyu ushobora kwangirika vuba aluminiyumu idakingiwe, PVDF ats gutwika birinda ingese no kwangirika - gutsinda ibizamini byo gutera umunyu amasaha 1000 nta gihu cyangwa byangiritse (kuri ASTM B117). Barwanya kandi aside nitric 5% na hydroxide ya sodium 5% mumasaha 24 nta gihinduka kigaragara. PE ibifuniko, ariko, bifite imiti mike yo kurwanya imiti kandi ntibikwiye ahantu h’inganda zangiza cyangwa zanduye cyane. Bakunda kwangirika mu mwuka wumunyu cyangwa aside, biganisha ku gukuramo no guhindura ibara, kandi birashobora kwerekana iyangirika rikomeye mumyaka mike mubihe nkibi. Kubice byimbere mu gihugu bifite umwanda muke nikirere cyoroheje, resistance PE resistance kurwanya ruswa birahagije, ariko ntishobora kwihanganira ibihe bibi PVDF ikemura byoroshye.

Urwego

Ubworoherane bwa gloss niho PE ibifuniko bifite inyungu isobanutse. PE PVDF ibifuniko, bitandukanye, mubisanzwe biboneka muri matte cyangwa satine irangiza (gloss 20-60%) kandi ntibigenewe gukoreshwa cyane. Ibi ni ukubera ko form PVDF resin ishyira imbere kuramba no guhangana nikirere hejuru yuburabyo bwinshi, hamwe nuburabyo bwinshi PVDF gutwika byakunda kwerekana ibishushanyo no kwambara mugihe. Ku mishinga aho gloss ari ikintu cyingenzi gisabwa cyiza kandi ibidukikije ni bike, PE ni amahitamo meza; kubikorwa byo hanze aho kuramba ari ngombwa, PVDF 'matte / satin kurangiza ni byiza kandi biramba.

Imbonerahamwe yo Kugereranya Imbonerahamwe

Imikoreshereze : Ninde ukwiye gukoresha?

Igihe cyo Guhitamo PVDF

PVDF By'umwihariko, hitamo PVDF niba umushinga wawe uguye mubyiciro bikurikira:

Ibice byo ku nkombe : Umwuka wumunyu nubushuhe bwinshi mukarere ka nyanja birashobora kwangirika cyane, kandi PVDF birenze urugero birwanya ruswa birinda ingese, kuzimangana, no gukonjesha - bigatuma isura ikomeza kuba nziza kandi ishimishije mumyaka mirongo.

Inyubako rusange : Ibibuga byindege, stade, ingoro ndangamurage, nibindi bimenyetso nyaburanga rusange bisaba impuzu zishobora kwihanganira kugenda n’ibirenge biremereye, guhora uhura nibintu, kandi bigakomeza ubwiza bwimyaka myinshi. PVDF 'imyaka 20-30 yo kubaho no kugumana amabara bituma bihuza neza niyi mishinga igaragara cyane.

Ahantu h’inganda zanduye cyane : Inganda, inganda, hamwe n’inganda zerekana inganda za aluminiyumu umwotsi w’imiti, imvura ya aside, n’ibindi bihumanya. PVDF resistance imiti irwanya imiti ituma igifuniko gikomeza kuba gihamye kandi kirinda, kugabanya amafaranga yo kubungabunga no gusimbuza.

Igihe cyo Guhitamo PE

PE Hitamo PE niba umushinga wawe uri murimwe muribi byiciro:

Igisenge cyo mu nzu hamwe n'imbaho ​​zo mu rukuta : Ibidukikije byo mu nzu birinzwe n’ikirere kibi, bityo PE igihe gito cyo kubaho ntabwo giteye impungenge. Ubwoko bwamabara yagutse hamwe nuburabyo butuma biba byiza muguhindura imyanya yimbere, kuva mubiro kugeza kumazu atuyemo.

Amazu yigihe gito cyangwa igisenge cyamazu yo guturamo : Inyubako zigihe gito (urugero, ibiro byubwubatsi, pavilion yibirori) cyangwa imishinga yo guturamo ingengo yimishinga idakenera imyaka mirongo. PE 'ikiguzi-cyiza bituma ihitamo ikiguzi cyo kuzigama kuriyi porogaramu, mugihe ikomeje gutanga uburinzi buhagije bwo gukoresha igihe gito cyangwa giciriritse.

Ibyapa byimbere hamwe no kwamamaza : Ibyapa nibyamamaza byerekana amabara akomeye hamwe nurwego rworoshye rwa gloss kugirango bikurure ibitekerezo. PE 'amabara manini yagutse hamwe nubushobozi buke-glosses ituma itunganyirizwa muribi bikorwa byo murugo cyangwa bikingiwe hanze, aho UV igaragara.

Isesengura-Inyungu

Igiciro cyambere

Ni ngombwa kwemeza imbere yuko PVDF ibara ryuzuye ibara rya aluminiyumu ihenze cyane kuruta PE ubundi buryo. Ibiciro fatizo bya PVDF resin bikubye inshuro 2-3 iby'ibiti bya polyester, kandi uburyo bwo gutwikira busaba guteka ubushyuhe bwo hejuru (230-250 ℃) byongera ingufu zikoreshwa n’ibiciro by’umusaruro. Ugereranije, PVDF -ibiceri bitwikiriye bigura 30-50% hejuru cyane kuruta PE -ibishishwa bifatanye - iri shoramari ryambere rishobora kuba imbogamizi kubaguzi bagabanijwe ningengo yimishinga cyangwa imishinga ifite igihe gito.

Agaciro Kigihe kirekire

Mugihe PVDF ifite igiciro cyambere cyambere, agaciro kayo karekare karenze kure ka PE kumishinga isaba kuramba. PVDF 'imyaka 20-30 yubuzima bivuze ko idakenera gukenera kubungabungwa cyangwa gusimburwa, mugihe PE -ibishishwa bitwikiriye bisanzwe bigomba gusimburwa buri myaka 5-10. Mu myaka ibarirwa muri za mirongo, ikiguzi cyo gusimbuza PE ibiceri (harimo ibikoresho, umurimo, nigihe cyo gukora) byiyongera cyane - akenshi birenga itandukaniro ryambere ryibiciro hagati ya PVDF na PE . Kurugero, uruhande rwinyanja ukoresheje PE ibishishwa birashobora gukenera gusimburwa kabiri (cyangwa birenga) mumyaka 20, mugihe PVDF igice cyagumaho neza hamwe no kubungabunga bike. Byongeye kandi, PVDF properties 'kwisukura ubwabyo bigabanya ikiguzi cyogusukura, kandi kugumana ibara ryayo bikuraho gukenera gusiga irangi, bikongera imbaraga zo kuzigama igihe kirekire. Kubikorwa byohejuru cyangwa birebire, PVDF nuburyo bwiza bwo guhitamo mugihe kirekire, kuko bigabanya igiciro cyose cya nyirubwite (TCO) kandi ikemeza ko umushinga ugumana agaciro nigaragara mugihe runaka.

Kugenzura ubuziranenge: Ibyo kureba kubitanga

Ubunini

Ubunini bwa coating ni ikintu cyingenzi kuri PVDF ibara ryometse kuri aluminiyumu, kuko bigira ingaruka ku buryo burambye no gukora. Inganda zinganda kuri PVDF ats gutwikira bisaba ubunini buke bwa 25 mm kuri sisitemu ebyiri (primer + topcoat) na 34 mm kuri sisitemu eshatu (primer + topcoat + ikoti risobanutse). Abatanga isoko bagomba gukurikiza aya mahame - gutwikira umubyimba uri munsi yikigereranyo bishobora kugabanya kugabanuka kwa UV, kurwanya ruswa, no kubaho. Kuri PE ibifuniko, ubunini busanzwe buri hagati ya 15-25 mm (umurongo umwe) cyangwa 25 mkm (ibice bibiri), ariko biracyakenewe kugenzura ko uwabitanze yujuje ibi bisobanuro kugirango yizere imikorere ihagije.

Kwipimisha

Kugirango hamenyekane ubuziranenge bwa PVDF na PE ibishishwa bya aluminiyumu, abaguzi bagomba kugenzura ko abatanga ibicuruzwa bakora ibizamini bikomeye. Kuri PVDF ibishishwa, ibizamini byingenzi birimo: Ikizamini cyumunyu wumunyu (kuri ASTM B117), gipima kurwanya ruswa PVDF ibishishwa bigomba kurenza amasaha 1000 yumunyu utera nta gihu cyangwa ingese; na MEK (Methyl Ethyl Ketone) Ikizamini cyo Kurwanya PVDF kuri ASTM Kuri PE ibishishwa, ibizamini byo gutera umunyu (mubisanzwe amasaha 500-1000) hamwe n ibizamini bya adhesion (kuri ASTM D3359) nibyingenzi kugirango habeho guhuza neza neza na aluminiyumu kandi birwanya gukuramo. Byongeye kandi, ibizamini byo kugumana amabara (ibizamini bya QUV byo gusaza) birashobora kugenzura ubushobozi bwo gutwika ibara mugihe.

Kuki Hitamo Dingang

Kuri Changzhou Dingang , dushyira imbere ubuziranenge, gukorera mu mucyo, no guhaza abakiriya muri buri cyiciro cyamabara yatwikiriwe na aluminiyumu dukora. Ibiceri byacu PVDF byakozwe hamwe na 100% byukuri bya Kynar 500® cyangwa Hylar 5000®, byemeza igipimo cya 70% gisabwa kugirango gikorwe neza - dutanga ibyemezo byuzuye biva muri Arkema cyangwa Solvay kugirango tumenye niba resin ari ukuri. Uruganda rwacu rugezweho rukoresha ikoranabuhanga rigezweho kandi rikoresha neza ubushyuhe bwo guteka (230-250 ℃ kuri PVDF , 200-220 ℃ kuri PE ) kugirango habeho umubyimba umwe hamwe no gufatana. Dukora igenzura rikomeye kuri buri cyiciro: kugenzura ibikoresho fatizo (kugenzura ubuziranenge bwa resin nubuziranenge bwa aluminiyumu), kugerageza mubikorwa (kugenzura umubyimba wuburinganire nuburinganire), hamwe no gupima bwa nyuma (spray yumunyu, kurwanya MEK, kwifata, no kugumana amabara) kugirango buri coil yujuje cyangwa irenze ibipimo byinganda. Byongeye kandi, dutanga ibara ryihariye hamwe nuburabyo bwo guhitamo byombi PVDF na PE ibishishwa, kandi itsinda ryacu rya tekinike ritanga ubuyobozi bwihariye kugirango bugufashe guhitamo neza neza umushinga wawe. Hamwe nuburambe bwimyaka 10+ munganda, turemeza ko kugemura ku gihe, ibiciro byapiganwa, hamwe ninkunga nyuma yo kugurisha kugirango umushinga wawe ugende neza.

Umwanzuro

Mu mpaka hagati ya PVDF na PE ibara ryometse kuri aluminiyumu, ntamuntu numwe uhuza-byose 'uwatsinze ' - guhitamo biterwa numushinga wawe ukeneye. PVDF PE kurundi ruhande, niwe watsindiye ubukungu nubworoherane bwubwiza: birahendutse, bitanga amabara menshi nurwego rwinshi, kandi bikora neza mubidukikije byoroheje, bigatuma biba byiza muburyo bwo gushariza imbere, amazu yigihe gito, nimishinga iciriritse. Urufunguzo nuguhuza amahitamo yawe nibidukikije byumushinga wawe, bije, hamwe nigihe utegerejweho.

Niba ukeneye ibicuruzwa bya aluminium coil / urupapuro, nyamuneka twandikire kugirango tuganire byinshi.

Dingang Irangi rya aluminiyumu ni choie yawe nziza mukarere gakorerwa.

Dingang - Uruganda rwumwuga Kumurongo wa Aluminium Alloy Coating Umuzingo wa aluminiyumu / Urupapuro Kuva 2002

Murakaza neza kugirango mutubaze niba hari icyo ukeneye kuri coating aluminium coil / urupapuro.

Changzhou Dingang Metal Material Co, Ltd.