Anodized aluminium. Txheej tshwj xeeb rau cov khoom siv

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2024-01-02 13:55

Kev siv cov txhuas profile rau kev ua tiav qee ntu ntawm lub tsev, nrog rau kev siv rau kev tsim khoom sab hauv, tau mus rau qee lub sijhawm. Cov hlau nws tus kheej yog tus cwj pwm los ntawm kev ua haujlwm siab, zoo nkauj thiab lub teeb yuag, tab sis nws oxidizes sai heev thiab dhau los ua cov txheej grey yog tias nws cuam tshuam nrog oxygen.

Anodized aluminium yog dab tsi?

Txhawm rau khaws lub ci ci ntawm cov khoom siv hlau, yuav tsum siv cov txheej tshwj xeeb. Vim yog daim ntawv thov txheej txheej ntxiv, cov tsos tseem zoo li tsis hloov pauv, tab sis tib lub sijhawm, cov teeb meem xws li corrosion tuaj yeem hnov qab tau ntev heev.

Yuav kom nkag siab tias aluminium anodized yog dab tsi, nws yog ib qho tsim nyog yuav tsum paub seb cov hlau npog li cas nrog cov yeeb yaj kiab tiv thaiv. Feem ntau, cov hlau muaj kev tiv thaiv los ntawm kev cuam tshuam ntawm ib puag ncig sab nraud nrog kev pab los ntawm ntau yam kev tiv thaiv thiab lwm yam. Hauv qhov no, cov yeeb yaj kiab tiv thaiv yog qhov zoo tib yam, tab sis twb tau oxidized aluminium, uas muaj cov tshuaj hauv qab no: Al₂O_{3. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias hauv qhov noyuav raug nthuav tawm tsis yog ib zaj duab xis mos thiab nyias amorphous, tab sis raws li cov qauv crystalline, uas zoo ib yam li spinel, piv txwv li.}

zaj movie yog dab tsi?

Nws hloov tawm tias anodized aluminium yog npog nrog zaj duab xis ntawm cov khoom siv oxidized lawm. Tus neeg sawv cev tiv thaiv no yog tus cwj pwm los ntawm cov khoom hauv qab no:

• microcrystalline hom qauv;
• lub hauv paus yog nthuav tawm nyob rau hauv daim ntawv ntawm cov yeeb yaj kiab ultra-dense, thiab txheej txheej txheej yog ib zaj duab xis uas muaj ntau qhov pores;
• Qhov adhesion ntawm no oxidized compound rau txhuas muaj zog heev.

Qhov kawg tseem ceeb heev. Nws txhais tau hais tias anodized aluminium yuav muaj peev xwm tswj tau nws cov txheej txheem tiv thaiv nyob rau hauv ib qho kev thauj khoom rau 40 xyoo lossis ntau dua. Qhov no zoo heev distinguishes no muaj pes tsawg leeg los ntawm xws li xim los yog npib tsib xee txheej, uas peels tawm aluminium yooj yim lub sij hawm.

Nws tuaj yeem ntxiv tau tias qhov tshwm sim yuav nyob ntawm cov txheej txheem kev xaiv. Ntawd yog, cov khoom ntawm zaj duab xis tuaj yeem hloov pauv. Nws tuaj yeem yog ultra-nyias thiab tsuas yog 10-25 microns thoob plaws lub thickness ntawm nws cov qauv. Hauv qhov no, nws tsis tuaj yeem pom qhov muag liab qab. Txawm li cas los xij, txawm tias txheej txheej zoo li no tuaj yeem tiv thaiv cov hlau los ntawm kev cuam tshuam hnyav thiab tib lub sijhawm xa mus txog 95% ntawm lub teeb.

Anodizing thev naus laus zis

Cov xim tsis sib xws ntawm anodized aluminium txhais tau tias cov khoom muaj txheej txheej tiv thaiv thinnest. Cov txheej txheem ntawm kev tau txais cov txheej txheem tiv thaiv zoo li no yog nyob ntawm qhov tseeb tiasanodic oxidation ntawm txhuas tshwm sim nyob rau hauv cov tshuaj electrolyte. Nyob ntawm seb hom anodized aluminium koj xav tau thaum kawg, peb hom electrolytes siv:

• kho nrog tam sim no tsawg heev nyob rau hauv muaj qhov tsis tu ncua voltage thiab qaug zog acid hom electrolyte;
• hom txheej no tuaj yeem siv tau los ntawm kev cuam tshuam ntawm dichromate acid electrolyte;
• Oxidation ntawm ib yam khoom kuj tuaj yeem tshwm sim hauv alkaline electrolyte.

Txhawm rau hloov cov khoom ntawm zaj duab xis zaum kawg, cov kev txwv xws li acidity, da dej kub, thiab kev ua haujlwm voltage ntawm anode thiab cathode tuaj yeem hloov pauv.

Anodized aluminium cookware

Nws yuav tsum tau hais tam sim ntawd tsuas yog peb hom txheej txheem thev naus laus zis tau siv rau kev tsim cov tais diav: stamping, casting thiab forging. Nyob rau hauv lub xub ntiag ntawm txhuas nrog xws li ib tug siv lead ua qauv, tag nrho peb hom yuav siv tau. Tag nrho cov tuam ntxhab ntawm cov khoom siv hauv chav ua noj thiab cov khoom siv hauv tsev hais tias kev siv cov khoom siv no tso cai rau koj los tsim cov khoom ntawm ib tiam tshiab. Qhov laj thawj tseem ceeb vim li cas lub teeb thiab yooj yim hlau tsis tuaj yeem siv ua ntej yog cov txheej txheem oxidation. Lub sijhawm ntawm kev sib cuag nrog zaub mov ua rau lawv zoo, thiab lawv tsis tuaj yeem noj. Anodizing daws qhov teeb meem no.

Aluminium sheet

Ntxiv rau cov tais diav thiab lwm qhov chaw, cov ntawv txhuas anodized kuj tau tsim. Ntxiv nrog rau qhov tseeb tias xws li ib txheej pabtshem tawm corrosion, nws kuj tiv thaiv cov hlau los ntawm fading. Lwm yam khoom yog nce hnav tsis kam. Ua tsaug rau qhov no, nws tuaj yeem txhim kho qhov zoo ntawm txhua qhov duralumin. Qhov no tseem ceeb heev hauv kev tsim khoom, piv txwv li, dashboards. Cov kev txwv ntawm cov nplooj ntawv tsim muaj raws li hauv qab no:

• daim ntawv thickness yog 0.5-2mm;
• daim ntawv qhov ntev - 500 × 600 mm;
• tus lej tsawg kawg ntawm nplooj ntawv ib pawg - 1.

Raws li kev siv anodized aluminium, tam sim ntawd tom qab nws tsim, nws tau dav siv rau kev tsim cov txhuas (duralumin) qhov chaw rau dav hlau. Lwm qhov kev siv rau hom aluminium no yog txheej tiv thaiv rau lwm cov ntsiab lus, nrog rau lub hauv paus rau cov xim pleev xim. Nws tseem tsim nyog ntxiv tias cov txheej txheem tiv thaiv zoo li no nyuaj dua li aluminium nws tus kheej. Qhov no ua rau kom qhov hnav tsis kam ntawm tag nrho cov ntsiab lus. Lub plhaub tiv thaiv pab ua kom txhuas cov khoom siv hluav taws xob zoo, txawm li cas los xij, qhov muaj peev xwm ntawm kev tawg hauv zos me me tseem nyob, thiab yog li qhov no qee qhov txwv nws siv los ua ib qho insulator.