Nangahe Kurwanya Rust Kurwanya 3003 Ibara ryometse kuri Aluminiyumu Kuruta 1060?

Ibisobanuro

1060 na 3003 imirongo ya aluminiyumu nuburyo bubiri bukoreshwa cyane mugutunganya amabara ya aluminiyumu itunganijwe neza mubishushanyo mbonera, HVAC ninganda zitangiza amazi. Mugihe byombi bifata uburyo bumwe bwo gutwikisha ibinyabuzima birimo firime yo guhindura ibintu, epoxy primer na polyester / PVDF topcoat, itandukaniro ryabyo rya metallurgjique ritera icyuho kigaragara mumashanyarazi maremare no kurwanya ruswa. Iyi ngingo igereranya icyuho cyo kurwanya ingese hifashishijwe isesengura ryibintu, isesengura ryumunyu usanzwe wumunyu hamwe no kugenzura ibidukikije, kandi irasobanura ibintu byakoreshwa kuri iyo mirongo yombi.

1. Ibyingenzi Byibanze Byibintu Bitandukanye

1.1 Ibipimo byimiti

1060 ni iy'uruhererekane rwa aluminiyumu 1000 ifite isuku ya aluminiyumu iri munsi ya 99,6%, ikubiyemo gusa ibyuma bya fer na silikoni gusa bitarimo ibintu bivanga nkana. Imiterere yimbere yimbere ni icyiciro kimwe cya aluminiyumu igisubizo gikomeye, ikora firime ya alumina passivation yoroheje kandi yuzuye iyo ihuye numwuka. Ibinyuranye, 3003 ni Al-Mn ikozwe hamwe na 1.0% kugeza 1.5% manganese yongeweho nkibintu byingenzi bivanga. Manganese ifata imyanda yimbere imbere muri substrate kugirango ibe uduce duto duto twa Al6 (Mn, Fe).

Utwo duce dukuraho selile ya galvanic yaho iterwa no gutandukanya ibyuma muri aluminiyumu nziza. Kubutaka bwambaye ubusa butagira ibara, ibizamini bisanzwe byerekana ko 3003 aluminiyumu yambaye ubusa ifite 35% birwanya ruswa yo mu kirere kurenza 1060 aluminium yambaye ubusa. Kubicuruzwa bisize ibara, iyi nyungu ya substrate irabuza mu buryo butaziguye gukwirakwiza insimburangingo yo kwangirika iyo habaye micro-inenge.

1.2 Substrate Surface Passivation Guhuza

Mugihe cyo gutwikira mbere ya chromate idafite gahunda yo kwitegura, imiterere yintete imwe ya 3003 iteza imbere gushira muri firime ya 200-300nm. Ihinduranya rya firime ihuza imbaraga 3003 iri hejuru ya 12% kurenza iyo 1060. 1060 aluminiyumu yuzuye ikunda guhura na firime ya okiside itaringaniye mugihe cyo kubika, ibyo bikaba bitera guhuza igice hagati ya primer na substrate. Gufata nabi ni intandaro yambere yo gutobora impande zombi no munsi ya firime ingese ya aluminiyumu.

2. Umubare wuzuye wa Rust Resistance Gap ukoresheje ibizamini byumunyu

Ingero zose zipimishije zafashe ingamba zihuza inganda: 5μm epoxy primer + 20μm polyester topcoat, isa na chromium itabigenewe, H14 ubukonje bukabije hamwe nuburinganire bwa 0.8mm. Ibizamini byakurikiranye ASTM B117 itabogamye yumunyu wumunyu hamwe na ISO 16701 yubushyuhe bwo guhinduranya ruswa.

2.1 Ibisubizo by'ibizamini bitagira aho bibogamiye (Ibidukikije byoroheje)

Nyuma yamasaha 4200 yikigereranyo cyumunyu utagira aho ubogamiye: Ibara rya 1060 ryometse kuri aluminiyumu ryagaragaye ryangiritse mu masaha 2900, ingese ikwirakwiza radiyo igera kuri 0,6mm ikikije ibishishwa. Mugenzi wa 3003 yabyaye gusa umweru muto hejuru yikoti idafite ingese ya substrate na nyuma yamasaha 4200. Mu bidukikije byoroheje nko mu mijyi yo hagati, ubuzima bwiza bwo kurwanya ingese ya 3003 imirongo yometseho yongerewe 48% ugereranije na 1060.

2.2 Guhindura umunyu mwinshi utanga ibisubizo (Inkombe / Ibidukikije byinganda)

Mu myunyu mwinshi hamwe na sulfure irimo ibizamini byo kwigana ikirere cyo mu kirere, ikinyuranyo cyimikorere cyagutse cyane. Nyuma yamasaha 1800 yo guhinduranya kwangirika, imirongo 1060 yometseho yangiritse ikomeza kwangirika munsi ya firime kumpande zaciwe, iherekejwe no gukuramo ibishishwa muri 3mm uhereye kumpera. Imirongo 3003 yatwikiriwe gusa yari ifite ibara rya okiside ihindagurika idafite ingese cyangwa ingese. Mu nganda zishobora kwangirika ku nkombe n’urumuri, 3003 irwanya ingese yikubye hafi inshuro 1060 amabara ya aluminiyumu.

3. Kunanirwa kwa Mechanism Itandukaniro ryimirongo ifunze

3.1 Kwamamaza ruswa munsi ya firime

Iyo ibishushanyo bimennye igipfundikizo cyuzuye, imyuka y'amazi hamwe na ion ya chloride byinjira mubutaka bwa substrate. Kuri 1060 ya aluminiyumu yuzuye, kwangirika kwa micro-galvanic bibaho byihuse hagati yo gutandukanya umwanda wicyuma na materique ya aluminium, biganisha ku ngese yuruhande ikwirakwira kuri interineti. Igipimo cyo gukwirakwiza kigera kuri 0.21mm buri kwezi mubihe bitose. Kuri 3003, manganese ivanga homogenize ubushobozi bwa electrode hejuru yubutaka, ikuraho ruswa ya mikorobe. Ikwirakwizwa ry’ingese ryamanutse rigabanuka kugera kuri 0.07mm buri kwezi, rirwanya ruswa igenda neza.

3.2 Nyuma yo kunama Imikorere yo kurwanya ingese

Ibara ryometse kuri aluminiyumu akenshi ryunamye kugirango ushire kurubuga. Guhindura ihindagurika bitera micro-ibice imbere muri kote. 1060 ifite imbaraga nke zo gutanga umusaruro, kandi guhangayika biganisha kuri micro-crack idasanzwe. Itangazamakuru ryangirika ryinjira muburyo bworoshye. 3003 ifite 30% byimbaraga zirenze 1060 munsi yubushyuhe bumwe, bugabanya kwaguka kwifata mugihe cyo kunama. Gukurikirana umurima byerekana ko imirongo 1060 yometseho itera ingese hejuru yimyaka 2.2 mbere yo kugoreka imirongo 3003 munsi yo hanze.

4. Amabwiriza ashingiye ku guhitamo

4.1 Ibyibanze kuri 1060 Ibara ryometse kuri Aluminium

1060 gusa igumana ibyiza byigiciro cyimbere mu gihugu imbere yumye hamwe nubushyuhe buke kandi nta gaze yangirika. Ihindagurika ryayo iri hejuru ya 8% hejuru ya 3003, bigatuma ikwirakwira cyane gushushanya imitako ya aluminiyumu ishushanya hamwe na plaque yo mu nzu idafite ibyangombwa bisabwa hanze. Kurwanya ingese byujuje byuzuye imyaka 15 ya serivisi yo murugo hamwe nibiciro bito.

4.2 Ibyibanze kuri 3003 Ibara ryometse kuri Aluminium

3003 ni itegeko kubintu byose byo hanze bisabwa hanze, harimo kubaka igisenge cyo hejuru, kuzenguruka urukuta rw'inyuma, kuzenguruka hanze ya aluminiyumu no gufunga imiyoboro ya HVAC yo hanze. Ihuza n'isuri y'amazi y'imvura, igihu cy'umunyu hamwe na gazi yangiza inganda. Hamwe na PVDF ihindagurika cyane yikirere ihuye, imirongo 3003 yometseho irashobora kugumana imikorere idafite ingese mumyaka irenga 30, mugihe 1060 ishobora kwemeza imyaka 18 gusa mugihe kimwe.

5. Umwanzuro

Ubwinshi, ibyiza byo kurwanya ingese ya 3003 ibara ryometse kuri aluminiyumu iratandukana bitewe na serivisi: 48% ubuzima bwa serivisi murwego rwo hejuru mu kirere cyumutse cyumutse, hamwe no gutera imbere hafi 100% mubidukikije byangiza inganda. Impamvu yibanze iri muri manganese homogenisation ya substrate electrode ishobora kuba nziza hamwe na firime ihindura neza. Twabibutsa ko inyungu ikomoka kuri substrate metallurgie aho gutwikira itandukaniro. Ipfundikanya imwe ntishobora gukuraho icyuho cyo kurwanya ruswa hagati ya 1060 aluminiyumu yera na 3003 aluminium-manganese. Abakoresha bagomba kuringaniza ibiciro hamwe nibidukikije byangirika kugirango bahitemo substrate.