1. Sulfuric Acid Anodizing
Anodizing loj hlob ib ntom aluminium oxide txheej electrolytically. Txheej thickness yog teev nyob rau hauv MIL-PRF-8625, uas txhais tau tias hom II sulfuric acid txheej nyob rau hauv ob chav kawm: Chav 1 ntawm 0.0007 nyob rau hauv (kwv yees 18 micrometers) thiab Class 2 ntawm 0.0004 nyob rau hauv (kwv yees 10 micrometers). Cov txheej txheej ua kom tawv tawv thiab muab hluav taws xob rwb thaiv tsev, thiab cov kauj ruam tom ntej sealing kaw cov qauv ntxeem tau, uas txhim kho kev tiv thaiv rau ntsev raug. Txheej hnyav tuaj yeem txheeb xyuas tau rau ASTM B137.
Teb sib txawv nrog cov hlau: 6061 thiab 6063 anodise rau cov xim ntshiab, zoo ib yam, thaum siab - tooj liab thiab siab - qib silicon ua rau qhov tsaus, tsawg dua qhov tshwm sim. Vim tias cov txheej txheem loj hlob ib feem rau hauv qhov chaw, qhov ntev thiab cov nyiaj pub dawb yuav tsum tau pom zoo ua ntej ua.
2. Hard Anodizing
Hom III nyuaj anodic coatings, kuj tau txhais nyob rau hauv MIL-PRF-8625, yog tsim nyob rau hauv ntau aggression tej yam kev mob thiab feem ntau yog siv nyob rau hauv thickness ntau dua cov hniav txheej. Qhov tshwm sim yog qhov hnyav dua, hnav ntau dua- qhov chaw tiv taus haum rau kev sib cuag zawv zawg, pneumatic thiab hydraulic Cheebtsam thiab cov khoom noj khoom haus. Cov txheej tawv tawv tsis tshua muaj zog dua li hom II txheej txheej, yog li cov kaum ntse ntse thiab cov ntu nyias yuav tsum tau txiav txim siab nyob rau theem tsim, thiab daim npog ntsej muag feem ntau yuav tsum tau siv rau ntawm qhov chaw sib txuas.
3. Cov hmoov txheej thiab cov xim ua kua
Organic coatings muab cov xim thiab muaj kev cuam tshuam tsis tu ncua. Architectural ua hauj lwm tau teev tseg rau AAMA 2604 thiab AAMA 2605 yeem specifications, uas teev cov qib kev ua tau zoo raws li ceev huab cua thiab sab nraum zoov raug; AAMA 2605 sawv cev rau qib xav tau ntau dua. Adhesion, cuam tshuam thiab kho tau raug kuaj xyuas ntawm cov khoom tsim tawm, thiab cov yeeb yaj kiab thickness yog ntsuas ntawm qhov ua tiav. Vim hais tias cov hmoov los yog kua zaj duab xis yog ib qho insulator, cov khoom siv hluav taws xob yuav tsum tau ua kom tau raws li daim npog ntsej muag lossis los ntawm ib qho chaw sib cais.
4. Chromate thiab Conversion Coatings
Cov tshuaj hloov pauv tshuaj yog siv los tswj cov kev coj ua thaum muab kev tiv thaiv corrosion thiab tus yuam sij rau xim. Lawv tau teev nyob rau hauv MIL-DTL-5541, uas txawv hom I hexavalent thiab Hom II trivalent formulations, thiab los ntawm chav kawm raws li qib ntawm kev tiv thaiv corrosion yuav tsum tau. Cov txheej yog nyias heev, yog li nws ntxiv tsis muaj qhov tseem ceeb, tab sis nws tsis yog qhov hnav thiab yuav tsum tsis txhob cia siab rau kev puas tsuaj.
5. Mechanical Finishing thiab Sealing
Txhuam, blasting, polishing thiab tumbling hloov qhov chaw yam tsis ntxiv txheej txheej. Lawv yog siv los ua kom pom thiab tshem tawm qhov tsis xws luag ua ntej anodizing, thiab lawv tuaj yeem txhim kho tus cwj pwm qaug zog los ntawm kev tshem tawm cov khawb me me. Cov tshuab ua tiav feem ntau yog ua ke nrog ib qho ntawm cov kev kho mob saum toj no, vim lawv tsis nyob hauv lawv tus kheej muab kev tiv thaiv corrosion.
Kev pov thawj siv ntsev tsuag tshuaj ntsuam xyuas rau ASTM B117 lossis ISO 9227, nrog rau tooj liab -accelerated acetic acid variant, ASTM B368, siv rau anodic coatings rau kev pab cuam architectural. Txawm li cas los xij, kev kho mob twg yog xaiv, kev yuav khoom yuav tsum npe rau cov lus qhia, chav kawm lossis hom, txheej thickness thiab cov ntaub ntawv pov thawj yuav tsum tau, vim hais tias plaub yam khoom no txiav txim siab seb ob lub npe zoo tib yam tiav yuav ua tib yam hauv kev pabcuam.
Cov lus nug nquag
Q:Qhov kev kho mob twg muab qhov zoo tshaj plaws hnav tsis kam?
A: Hom III nyuaj anodizing, vim hais tias nws ua rau ib qho nyuaj, thicker oxide txheej dua hniav hom II anodizing.
Q:Cov chav kawm hauv MIL -PRF-8625 txhais li cas?
A: Rau Hom II txheej, Chav Kawm 1 qhia txog 0.0007 hauv thiab Chav Kawm 2 qhia txog 0.0004 hauv cov txheej tuab.
Q:Yuav ua li cas tiv thaiv corrosion?
A: Los ntawm kev ntsuas tshuaj ntsev rau ASTM B117 lossis ISO 9227, thiab rau kev tsim vaj tsev anodic coatings los ntawm tooj liab -accelerated acetic acid test, ASTM B368.
Q:Cov txheej twg tso cai rau hluav taws xob conductivity?
A: Nyias cov tshuaj hloov pauv cov txheej txheem siv rau MIL-DTL-5541 yog siv qhov kev coj ua yuav tsum tau khaws cia; anodized thiab pleev xim rau qhov chaw insulate.
Q:Puas yog anodizing hloov qhov ntev?
A: Yog. Cov oxide loj hlob ib nrab sab hauv thiab ib nrab sab nraud, yog li kev tso cai yuav tsum tau ua rau txheej tuab ntawm qhov loj me.
Q:Dab tsi yog teev rau architectural xim tiav?
A: Lub AAMA 2604 thiab AAMA 2605 yeem specifications, nrog tus lej siab dua sawv cev rau qib xav tau ntau dua.