Intangiriro

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 kizwiho kuba kirwanya imbaraga zidasanzwe z’ibidukikije, mu gihe PE (Polyester) ari impuzamikorere itandukanye, ihenze cyane ya polymer ifite agaciro keza ko gushushanya. Iyi myenda yombi ikora intego zitandukanye, kandi ntamahitamo 'meza ' ahuriweho-ahubgo, guhitamo neza biterwa ahanini nuburyo bwihariye bwumushinga wawe, harimo ibidukikije (urugero, inkombe ninyanja imbere, imbere nu hanze) hamwe nimbogamizi zingengo yimari. Aka gatabo kagamije guca itandukaniro ryingenzi, ibisobanuro bya tekiniki, hamwe nibisabwa kugirango bifashe abaguzi gufata icyemezo kiboneye.

Ni ubuhe bwoko bwa PVDF butwikiriye ibishishwa bya Aluminium?

Ibara rya PVDF ryometse kuri aluminiyumu ni ibicuruzwa byo mu rwego rwo hejuru byakozwe mu gihe kirekire mu gukora ibidukikije. Ibigize shingiro bizenguruka hafi 70% ya resin base, cyane cyane ukoresheje Kynar 500® (ifitwe na Arkema Inc.) cyangwa Hylar 5000® (ifitwe na Solvay Solexis Inc. Ikigereranyo cya 70% ya PVDF ntigishobora kuganirwaho kugirango ugere kubikorwa byumukono; formulaire iri munsi ya 70% PVDF yerekana kugabanya cyane kuramba no guhangana nikirere. 30% isigaye mubusanzwe igizwe na acrylic resin hamwe nubwiza buhebuje bwa organic organique, ibyo bikaba byongerera imbaraga hamwe nibara ryamabara mugihe bikomeza uburinganire bwimiterere.

Imbaraga zingenzi ziterwa na PVDF ziri mumiterere ya molekuline: karuboni-fluorine (CF) nimwe mubikomeye muri chimie organic, biha PVDF kurwanya bidasanzwe imirasire ya UV, ubushuhe, umwanda w’imiti, nihindagurika ryubushyuhe. Bitandukanye nibindi bitwikiriye, PVDF irwanya guhiga imburagihe, kuzimangana, gukuramo, no guturika nubwo nyuma yimyaka ibarirwa muri za mirongo ihura nibintu bikaze. Irata kandi ibintu byo kwisukura bitewe nububasha buke bwo hejuru, bigatuma bigora umwanda kubyubahiriza.

Urebye izo mbaraga, ibara rya PVDF 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 na zone yinganda (ziterwa numwotsi wimiti n’umwanda). Nibindi byatoranijwe kubwinyubako rusange isaba ubwiza bwubwiza nibikorwa byigihe kirekire.

Niki Ibara rya PE Ibara rya Aluminiyumu?

PE ibara ryometse kuri aluminiyumu ni igiciro cyinshi, gihinduranya ubundi buryo bwa PVDF, cyubatswe hifashishijwe uburemere buke bwa polyester polymers nka monomer yibanze. Sisitemu yabo yo gutwikamo ubusanzwe irimo 5-8 μ mm ya chromium idafite primer layer, ikoti ya 18-25 μ m PE, hamwe na 5-7 μm ikingira ikingira, ikoreshwa hakoreshejwe uburyo bumwe bwo gutwikira hanyuma igateka hafi 200-220 ℃. Ibi bihimbano byibanda kuburinganire-gutanga imikorere ihagije kubidukikije bidakenewe mugihe ibicuruzwa bitanga umusaruro muke.

Imbaraga zingenzi zo gutwikira PE nuburyo butandukanye bwamabara atandukanye, gloss flexible, hamwe nigiciro-cyiza. PE coatings itanga amabara arenga 200 RAL, harimo ibyuma, matte, hamwe na gloss-gloss irangiza, bigatuma biba byiza mumishinga aho guhitamo ubwiza nibyiza. Bagaragaza kandi uburyo buhebuje, hamwe na T-bend ikizamini cya 0T (bivuze ko bashobora kugororwa badacitse), bigatuma biberanye no kubumba no gutunganya. Ikigaragara cyane, impuzu ya PE ihendutse 30-50% kuruta ubundi buryo bwa PVDF, bigatuma bahitamo neza kubikorwa byimishinga.

Isoko ryibanze kuri PE ibara ryometse kuri aluminium coil centre kuri porogaramu aho ibidukikije bikabije ari bike. Ibi birimo imitako y'imbere (nk'igisenge cyo mu nzu hamwe n'imbaho ​​zo ku rukuta), ibyapa byamamaza 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 Tekinike

Kuramba & Igihe Cyigihe

Itandukaniro ryibanze rya tekinike hagati ya PVDF na PE ni igihe kirekire nubuzima bwa serivisi. Ipitingi ya PVDF, bitewe ninguzanyo zikomeye za CF hamwe na 70% ya resin, itanga ubuzima bushimishije bwimyaka 20-30 - hamwe nibicuruzwa byujuje ubuziranenge bimara imyaka 40 hamwe no kubifata neza. Amashanyarazi menshi ya PVDF yometse kuri aluminiyumu azana garanti yimyaka 30-40, yerekana imikorere yabo yigihe kirekire. Ibinyuranye, impuzu za PE zifite igihe gito cyo kubaho cyimyaka 5-10 (cyangwa kugeza kumyaka 15 mubidukikije byoroheje murugo), kubera ko imikoranire ya ester ikunda kwangirika kumirasire ya UV hamwe nibidukikije bidukikije mugihe runaka. Ibizamini bya laboratoire hamwe nimirima byerekana ko impuzu za PE zishobora gutangira gucika, kurigata, cyangwa gukuramo mugihe cyimyaka 5 mugihe uhuye nizuba ryinshi cyangwa ubuhehere bukabije.

Kugumana Ibara

Kugumana amabara ni akandi gace PVDF irusha PE, ahanini bitewe n'imiterere yayo. Inkunga ya CF muri PVDF irahagaze neza kandi irwanya imirasire ya UV, niyo ntandaro yambere yo gutuma amabara agabanuka. Imyenda ya PVDF igumana ubunyangamugayo bwa pigment na nyuma yo kumara igihe kinini izuba ryinshi - ibizamini byakozwe nizuba rikabije rya Floride byerekana ko impuzu za PVDF zigumana ihinduka ryibara (ΔE) ritarenze 3 nyuma yimyaka icumi, ibyo bikaba bitagaragara mumaso yumuntu. Byongeye kandi, impuzu za PVDF zipimisha QUV zishaje zamasaha arenga 4000 hamwe nigipimo cyo kugumana hejuru ya 90%, bikomeza kwemeza ibara ryabo. Ku rundi ruhande, impuzu ya PE, yishingikiriza kumashanyarazi ya UV hamwe na stabilisateur ya HALS kugirango igabanuke buhoro, ariko imikoreshereze ya ester iracyavunika mugihe kinini cya UV kimara igihe kinini, bigatuma habaho gutakaza amabara kugaragara (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 iba nziza 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, impuzu za PVDF zirinda 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, ariko, ifite imiti mike yo kurwanya imiti kandi ntabwo ikwiriye ahantu h’inganda ku nkombe 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 bifite umwanda muke nikirere cyoroheje, PE irwanya ruswa irahagije, ariko ntishobora kwihanganira ibihe bibi PVDF ikemura byoroshye.

Urwego

Gloss flexible niho impuzu za PE zifite inyungu zigaragara. PE irashobora kugera kumurabyo mwinshi (kugeza kuri 80-90%) Ibinyomoro bya PVDF, bitandukanye nibyo, mubisanzwe biboneka muri matte cyangwa satin birangira (20-60% gloss) kandi ntibigenewe gukoreshwa cyane. Ni ukubera ko imiterere ya PVDF ishyira imbere kuramba no guhangana nikirere hejuru yuburabyo bwinshi, kandi impuzu ndende cyane ya PVDF yakunda kwerekana ibishushanyo no kwambara mugihe. Ku mishinga aho gloss ari ikintu cyingenzi gisabwa cyiza kandi ibidukikije ni bike, PE nihitamo ryiza; kumishinga yo hanze aho kuramba ari ngombwa, PVDF ya matte / satin irangiza nibikorwa kandi biramba.

Imbonerahamwe yo Kugereranya Imbonerahamwe

Gusaba: Ninde ukwiye gukoresha?

Igihe cyo Guhitamo PVDF

Ibara rya PVDF ryometse kuri aluminiyumu ni amahitamo meza kumishinga isaba kuramba igihe kirekire, kurwanya ibidukikije bikaze, no kubungabunga bike. 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 irwanya ruswa irinda 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 urujya n'uruza rw'amaguru, guhora uhura nibintu, kandi bigakomeza ubwiza bwimyaka myinshi. PVDF yimyaka 20-30 yo kubaho no kugumana amabara bituma bihuza neza niyi mishinga igaragara cyane.

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

Igihe cyo Guhitamo PE

PE ibara ryometse kuri aluminiyumu ni amahitamo afatika kumishinga aho ingengo yimbere ari iyambere, kwerekana ibidukikije ni bike, kandi ubwiza bwubwiza nibyingenzi. 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 igihe gito cya PE ntikireba. Ubwoko bwamabara yagutse hamwe nuburabyo butuma biba byiza muguhindura imyanya yimbere, kuva mubiro kugeza kumazu atuyemo.

Inyubako z'agateganyo cyangwa igisenge giciriritse cyo guturamo : Inyubako z'agateganyo (urugero, ibiro by'ubwubatsi, pavilion y'ibirori) cyangwa imishinga yo guturamo ingengo yimishinga idakenera imyaka mirongo. PE ikoresha neza ituma ihitamo kuzigama ikiguzi 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 ibara ryinshi ryamabara hamwe nubushobozi bwo hejuru-glosses ituma itunganyirizwa mubikorwa byo murugo cyangwa bikingiwe hanze, aho UV igaragara.

Isesengura-Inyungu

Igiciro cyambere

Ni ngombwa kumenya imbere yuko ibara rya PVDF ryometse kuri aluminiyumu ihenze cyane kuruta PE. Igiciro cyibikoresho bya resin ya PVDF nikubye inshuro 2-3 icyuma cya polyester, kandi uburyo bwo gutwikira busaba guteka ubushyuhe bwo hejuru (230-250 ℃) byongera ingufu zikoreshwa nigiciro cyumusaruro. Ugereranije, ibishishwa bya PVDF bigura 30-50% hejuru cyane kuruta ibishishwa bifatanyirijwe hamwe - ishoramari ryambere 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. Ubuzima bwa PVDF bwimyaka 20-30 bivuze ko bidakenewe cyane kubungabungwa cyangwa kubisimbuza, mugihe ibishishwa bifatanye na PE mubisanzwe bigomba gusimburwa buri myaka 5-10. Mu myaka ibarirwa muri za mirongo, ikiguzi cyo gusimbuza ibishishwa bya PE (harimo ibikoresho, umurimo, nigihe cyo gukora) byiyongera cyane - akenshi birenga itandukaniro ryambere ryibiciro hagati ya PVDF na PE. Kurugero, uruhande rwinyanja ukoresheje ibishishwa bya PE birashobora gukenera gusimburwa kabiri (cyangwa birenga) mumyaka 20, mugihe igice cya PVDF cyagumaho neza hamwe no kubungabunga bike. Byongeye kandi, ibikoresho bya PVDF byo kwisukura bigabanya ibiciro byogusukura, kandi kugumana ibara ryayo bikuraho gukenera gusiga irangi, bikarushaho kuzamura kuzigama igihe kirekire. Ku mishinga yo mu rwego rwo hejuru cyangwa ndende, PVDF niyo ihitamo igiciro cyinshi mugihe kirekire, kuko igabanya igiciro cyose cya nyirubwite (TCO) kandi ikemeza ko umushinga ugumana agaciro nigaragara mugihe runaka.

Kugenzura ubuziranenge: Ibyo kureba kubitanga

Ubunini

Ubunini bwububiko nibintu byingenzi byubuziranenge bwa PVDF ibara rya aluminiyumu, kuko bigira ingaruka kumikorere no mumikorere. Inganda zinganda za PVDF zisaba uburebure 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. Ku mwenda wa PE, uburebure busanzwe buri hagati ya 15-25 mm (umurongo umwe) cyangwa 25 mm (kabiri-layer), ariko biracyakenewe kugenzura ko utanga isoko yujuje ibi bisobanuro kugirango yizere imikorere ihagije.

Kwipimisha

Kugirango ubuziranenge bwa PVDF na PE butwikiriwe na aluminiyumu, abaguzi bagomba kugenzura ko abatanga ibicuruzwa bakora ibizamini bikomeye. Ku bishishwa bya PVDF, ibizamini byingenzi birimo: Ikizamini cyumunyu wumunyu (kuri ASTM B117), gipima kurwanya ruswa - ibishishwa bya PVDF bigomba kurenza amasaha 1000 yumunyu utera nta gihu cyangwa ingese; hamwe na MEK (Methyl Ethyl Ketone) Ikizamini cyo Kurwanya (kuri ASTM D5402), isuzuma uburyo bwo guhangana nigishishwa - imyenda ya PVDF igomba kunyuza 50 MEK inshuro ebyiri nta byangiritse cyane. Kuri coil ya PE, ibizamini byo gutera umunyu (mubisanzwe amasaha 500-1000) hamwe nibizamini bya adhesion (kuri ASTM D3359) nibyingenzi kugirango uhuze neza neza na substrate ya aluminium kandi irwanya 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 bya PVDF byakozwe hamwe na 100% byukuri bya Kynar 500® cyangwa Hylar 5000®, byemeza ko 70% ya resin isabwa kugirango ikorwe neza - dutanga ibyemezo byuzuye biva muri Arkema cyangwa Solvay kugirango tumenye niba resin ari ukuri. Uruganda rwacu rugezweho rukoresha ikoranabuhanga rigezweho kandi rutekesha neza ubushyuhe bwo hejuru (230-250 ℃ kuri PVDF, 200-220 ℃ kuri PE) kugirango uburinganire bwuzuye kandi bufatanye. Turakora igenzura rikomeye ryubuziranenge kuri buri cyiciro: kugenzura ibikoresho fatizo (kugenzura ubuziranenge bwa resin nubuziranenge bwa aluminium), kugerageza mugikorwa (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 amabara yihariye hamwe nuburabyo kuri pVDF na PE byombi, kandi itsinda ryacu rya tekinike ritanga ubuyobozi bwihariye kugirango bugufashe guhitamo neza neza umushinga wawe. Hamwe nimyaka 10+ yuburambe mu nganda, 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, ntamunini-uhuza-byose 'uwatsinze ' - guhitamo biterwa numushinga wawe udasanzwe. PVDF niyo yatsindiye neza kubwiza, kuramba, no gukora mubidukikije bikaze: itanga imbaraga zirwanya UV, kurwanya ruswa, kugumana amabara, hamwe nubuzima bwimyaka 20-30, bigatuma biba byiza kumishinga yo murwego rwohejuru, rurerure nka fasade yinyanja, inyubako rusange, hamwe na zone yinganda. PE, kurundi ruhande, niyo yatsindiye ubukungu no guhuza ubwiza bwubwiza: birahenze cyane, bitanga amabara menshi nurwego rwinshi, kandi ikora neza mubidukikije byoroheje, bigatuma itunganywa neza mumitako yimbere, inyubako zigihe gito, nimishinga yingengo yimishinga iciriritse. Urufunguzo nuguhuza amahitamo yawe nibidukikije byumushinga wawe, bije, hamwe nigihe utegerejweho.

Hamagara kubikorwa 

Ntabwo uzi neza igifuniko gihuye numushinga wawe? Menyesha itsinda ryacu rya tekiniki kubitekerezo byavuzwe haruguru. Inzobere zacu zizasuzuma ibidukikije byumushinga wawe, ingengo yimari, hamwe nuburanga bukenewe kugirango bigufashe guhitamo neza ibara rya PVDF cyangwa PE ryuzuye ibara rya aluminiyumu - bizagufasha kubona agaciro keza nigikorwa cyiza cyo gushora.