Anodizing puas tuaj yeem ua tau los tiv thaiv -fading muaj nuj nqi?

Tshawb nrhiav Anti-Fading Function ntawm Anodizing txheej txheem

Anodizing yog txheej txheem txheej txheem hlau txheej txheem, dav siv hauv kev kho deg ntawm txhuas thiab nws cov alloys. Cov txheej txheem no txhim kho corrosion kuj, hnav tsis kam, thiab zoo nkauj ntawm cov ntaub ntawv los ntawm kev tsim cov oxide zaj duab xis rau ntawm cov hlau. Ntawm cov kev txhim kho no, kev tiv thaiv -fading yog qhov tseem ceeb hauv ntau daim ntawv thov. Kab lus no yuav tham txog qhov ua tau zoo, lub hauv paus ntsiab lus, thiab kev cuam tshuam ntawm kev ua tiav los tiv thaiv -fading los ntawm anodizing.

I. Cov Ntsiab Cai ntawm Cov Txheej Txheem Anodizing

Anodizing yog txheej txheem electrochemical nyob rau hauv uas txhuas los yog txhuas alloy yog muab tso rau hauv lub anode nyob rau hauv ib tug electrolyte, thiab ib tug ntom alumina zaj duab xis yog tsim nyob rau hauv cov hlau nto los ntawm kev siv ncaj qha tam sim no. Cov oxide zaj duab xis no muaj cov qauv ntxeem tau, tuab feem ntau ntawm 5-25 micrometers, thiab hardness ncav cuag HV300-500, deb tshaj ntawm cov khoom siv hauv paus.

Cov txheej txheem tsim ntawm cov oxide zaj duab xis tuaj yeem muab faib ua peb theem: ua ntej, txheej txheej txheej txheej txheej txheej txheej txheej ntawm cov hlau nto; tom qab ntawd, ib txheej ntxeem tau tsim nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb; thiab thaum kawg, cov pores raug kaw los ntawm txheej txheem sealing. Cov qauv tshwj xeeb no tsis tsuas yog txhim kho cov khoom saum npoo ntawm cov khoom, tab sis kuj muab lub hauv paus rau kev kho xim tom ntej.

II. Mechanism ntawm Anti-Fading Achievement hauv Anodizing

Cov txheej txheem anodizing nws tus kheej muaj qee qhov kev tiv thaiv - muaj peev xwm fading. Nws mechanism yog feem ntau xav txog nyob rau hauv cov nram qab no yam:

1. Lub cev tiv thaiv kev cuam tshuam ntawm Oxide zaj duab xis: Cov txheej alumina tsim los ntawm anodizing muaj cov tshuaj lom neeg muaj zog heev, ua haujlwm zoo thaiv kev cuam tshuam sab nraud (xws li lub teeb ultraviolet, oxygen, thiab noo noo) los ntawm corroding lub hauv paus hlau los yog colorant.

2. Stability of Coloring Methods: Anodizing mas siv ob txoj kev xim: electrolytic coloring thiab adsorption coloring. Electrolytic coloring yuav tso cov hlau ions nyob rau hauv qab ntawm oxide zaj duab xis pores; txoj kev no muab zoo lightfastness. Cov xim adsorption muaj cov organic lossis inorganic dyes nkag mus rau hauv oxide zaj duab xis pores; thaum muab cov xim nplua nuj, nws cov huab cua tiv thaiv kuj tsis zoo.

3. Kev tiv thaiv zoo ntawm kev kho sealing: sealing yog ib kauj ruam tseem ceeb hauv kev tshaj tawm - kev kho anodizing. Cov dej kub, chav dej, lossis cov tshuaj tua kab mob yog siv los kaw cov micropores ntawm oxide zaj duab xis, tiv thaiv cov xim tsis zoo thiab kev nkag mus ntawm cov khoom siv sab nraud, ua kom cov xim zoo dua qub.

III. Tej yam tseem ceeb cuam tshuam rau Fading Resistance

Thaum anodizing muaj qhov zoo fading kuj muaj peev xwm, nws qhov kev ua tau zoo yog cuam tshuam los ntawm ntau yam:

1. Oxide Film Thickness: Feem ntau, cov yeeb yaj kiab thicker, qhov zoo dua qhov fading kuj. Lub thicker oxide zaj duab xis muab kev tiv thaiv zoo dua, tiv thaiv cov xim los ntawm ib puag ncig cuam tshuam. Architectural aluminium profiles feem ntau siv 15-25 micrometer tuab anodizing zaj duab xis, thaum cov khoom zoo nkauj tsuas yog xav tau 5-10 micrometers.

2. Kev Xaiv Cov Txheej Txheem Xim: Cov xim hluav taws xob (xws li tin ntsev thiab nickel ntsev xim) ua cov xim uas nyob hauv huab cua- tiv taus rau 10-20 xyoo sab nraum zoov; thaum dye-adsorption xim cov khoom yuav qhia tau tias tseem ceeb fading nyob rau hauv ob peb xyoos nyob rau hauv lub hnub muaj zog.

3. Sealing Zoo: Kev sib khi tsis txaus tuaj yeem ua rau tsis tiav qhov pore sealing ntawm oxide zaj duab xis, ua rau cov xim tsis zoo thiab txo cov xim durability. Chav sealing thiab txias sealing txheej txheem yog zoo dua li dej kub sealing.

4. Cov xwm txheej ib puag ncig: Ib puag ncig yam xws li kev siv hluav taws xob ultraviolet, nag los nag, thiab ntsev ntsev tuaj yeem ua kom cov xim hloov pauv sai. Hauv ib puag ncig hnyav, txawm tias muaj cov txheej txheem siab heev, cov xim yuav maj mam hloov lub sijhawm.

5. Substrate Composition: Cov txheej txheem aluminium alloy sib txawv cuam tshuam rau qhov zoo thiab xim xim ntawm cov oxide zaj duab xis. High- purity aluminium ua ib qho zoo sib xws thiab ntom oxide zaj duab xis nrog zoo dua ploj mus; alloys uas muaj cov ntsiab lus xws li tooj liab thiab silicon tuaj yeem cuam tshuam qhov zoo ntawm oxide zaj duab xis.

IV. Kev ntsuas los txhim kho Fade Resistance

Txhawm rau txhim kho qhov ploj tsis kam ntawm cov khoom siv anodized, cov kev ntsuas hauv qab no tuaj yeem ua tau:

1. Optimize Oxidation Process Parameters: Tswj kom tsim nyog tam sim no ceev, electrolyte kub, thiab concentration los xyuas kom meej qhov tsim ntawm oxide zaj duab xis nrog ib tug uniform qauv thiab tsim nyog pore tis. Sulfuric acid anodizing feem ntau yields siab - zaj duab xis zoo.

2. Siv Electrolytic Coloring Processes: Ua ntej cov hlau ntsev electrolytic xim tshaj cov xim xim organic, tshwj xeeb tshaj yog rau cov khoom siv sab nraum zoov. Inorganic colorants xws li tin ntsev thiab nickel ntsev muab cov huab cua zoo.

3. Txhim kho Sealing Treatment: Siv qhov kub siab - qhov kub thiab txias ntawm chav sealing los yog ob txheej txheej sealing kom ua tiav qhov pore sealing ntawm oxide zaj duab xis. Nickel ntsev sealing tuaj yeem txhim kho corrosion kuj thiab xim stability.

4. Kev Tiv Thaiv Cov Txheej Txheem Ntog: Siv cov txheej tiv thaiv pob tshab (xws li fluorocarbon txheej) rau txheej anodized muab ib qho thaiv UV ntxiv, ua kom ntev ntev ntawm cov xim.

5. Environmental Adaptability Design: Xaiv cov txheej txheem tsim nyog ua ke raws li cov khoom lag luam ib puag ncig. Piv txwv li, cov khoom siv nyob rau hauv cov chaw ntug dej hiav txwv yuav tsum siv cov yeeb yaj kiab oxide tuab thiab cov txheej txheem tshwj xeeb sealing.

V. Kev txwv ntawm Anodizing rau Fade Resistance

Txawm hais tias anodizing muaj kev tiv thaiv zoo heev, qee qhov kev txwv muaj nyob:

1. Tsis muaj peev xwm tiv thaiv kev hloov xim: Txawm tias muaj cov txheej txheem siab heev, qhov ntev - raug rau qhov chaw huab cua yuav tseem ua rau qeeb xim hloov, txawm tias nyob ntawm ntau qib thiab tus nqi.

2. Kev xaiv xim tsis muaj xim: Cov xim electrolytic ruaj khov feem ntau tsim cov xim tsis muaj xim xws li tooj liab thiab dub. Cov xim vibrant feem ntau xav tau cov xim xim, uas muaj huab cua tsis zoo.

3. Kev Kho Kom Zoo: Cov khoom siv anodized yuav tsum tau tu thiab tu. Cov plua plav thiab cov kab mob sib kis ua rau cov tawv nqaij laus zuj zus, cuam tshuam rau kev ua haujlwm xim.

4. Kho nyuaj: Thaum fading tshwm sim, kho hauv zos yog nyuaj; re- oxidation ntawm tag nrho cov khoom feem ntau yog tsim nyog.

VI. Daim ntawv thov piv txwv thiab xaiv cov lus pom zoo

Hauv kev siv tswv yim, kev tiv thaiv -fading kev ua tau zoo ntawm anodizing tau raug lees paub tag nrho:

- Aluminium curtain phab ntsa panels: Siv 20-25 micron tuab-zaj duab xis anodizing ua ke nrog cov xim electrolytic, cov xim tuaj yeem nyob twj ywm tsis hloov ntau tshaj 15 xyoo.

- Cov khoom siv hluav taws xob: Siv nyias- txheej anodizing ua ke nrog cov xim xim, cov xim tuaj yeem nyob tsis hloov tau ntau xyoo hauv qhov chaw sab hauv tsev.

- Automotive trim qhov chaw: Siv cov mis tshwj xeeb rau cov xim electrolytic thiab ntxiv cov txheej txheem sealing, nws tuaj yeem tiv taus qhov hnyav sab nraum zoov.

Rau cov khoom siv sib txawv, peb pom zoo:

1. Cov khoom siv rau lub sijhawm ntev - siv sab nraum zoov: Xaiv qhov sib xyaw ua ke ntawm tuab - zaj duab xis anodizing (Ntau dua lossis sib npaug li 15μm), cov xim electrolytic, thiab cov txheej txheem sealing ob npaug.

2. Cov khoom siv kho kom zoo nkauj sab hauv: Nyias - zaj duab xis anodizing (5-10μm) thiab xim xim tuaj yeem siv los sib npaug ntawm cov nqi thiab kev xav zoo nkauj.

3. Cov ntawv thov nyob rau hauv ib puag ncig corrosive heev: Nws raug nquahu kom ntxiv cov txheej tiv thaiv saum toj ntawm anodizing los muab ntau txheej tiv thaiv.

VII. Xaus

Hauv cov ntsiab lus, anodizing tuaj yeem ua tiav qee yam ntawm cov xim nrawm, tshwj xeeb tshaj yog los ntawm kev ua kom zoo dua cov txheej txheem, xaiv cov xim tsim nyog, thiab ntxiv dag zog rau kev kho sealing, ua rau cov khoom siv ntev - xim ntev thiab ruaj khov. Txawm li cas los xij, ua tiav "colorfastness" tsis muaj tseeb; cov lus piav qhia meej dua yog "tsis tshua muaj fading" lossis "tsis muaj qhov pom tseeb ntawm qhov kev cia siab ntawm lub neej." Los ntawm kev tsim cov txheej txheem kev tshawb fawb thiab kev tswj xyuas nruj, cov khoom siv anodized tuaj yeem ua tau raws li cov xim uas yuav tsum tau muaj ntawm cov ntawv thov feem ntau, dhau los ua cov tshuaj kho deg uas sib xyaw ua kom zoo nkauj thiab ua haujlwm ntev.