7075 aluminium alloy, raws li 7 series aluminium alloy nrog cov ntsiab lus zinc siab, yog dav siv hauv kev lag luam aerospace, tub rog thiab high-end manufacturing industries vim nws cov khoom zoo heev thiab cov yam ntxwv sib zog. Txawm li cas los xij, muaj qee qhov kev sib tw thaum ua qhov kev kho saum npoo, tshwj xeeb tshaj yog thaum ua haujlwm anodizing los txhim kho nws cov kev tiv thaiv corrosion thiab tawv tawv.
Anodizing yog cov txheej txheem electrochemical los ntawm kev ua yeeb yaj kiab aluminium oxide tuaj yeem tsim rau ntawm cov hlau nto los txhim kho nws cov hnav tsis kam, corrosion resistance thiab zoo nkauj. Txawm li cas los xij, vim muaj cov ntsiab lus zinc siab hauv 7075 aluminium alloy thiab cov yam ntxwv ntawm Al-Zn-Mg alloy, qee qhov teeb meem yuav tshwm sim thaum lub sijhawm anodizing:
1. Xim tsis sib xws:Cov zinc ntsiab muaj qhov cuam tshuam ntau dua ntawm cov nyhuv oxidation, uas tuaj yeem ua rau cov npoo dawb, xim dub, thiab xim tsis sib xws ntawm cov khoom ua haujlwm tom qab oxidation. Cov teeb meem no tshwj xeeb yog tshwm sim thaum sim oxidize nws rau hauv cov xim ci (xws li liab, txiv kab ntxwv, thiab lwm yam) vim tias qhov ruaj khov ntawm cov xim no kuj tsis zoo.
2. Tsis txaus adhesion ntawm oxide zaj duab xis:Thaum cov txheej txheem ib txwm siv ntawm sulfuric acid anodizing yog siv los kho 7 series aluminium alloys, vim qhov tsis sib xws ntawm kev faib tawm thiab kev sib cais ntawm cov khoom siv aluminium alloy, qhov loj ntawm cov micropores ntawm cov oxide zaj duab xis yuav txawv heev tom qab anodizing. Qhov no ua rau muaj qhov sib txawv ntawm qhov zoo thiab adhesion ntawm oxide zaj duab xis ntawm qhov chaw sib txawv, thiab cov oxide zaj duab xis ntawm qee qhov chaw muaj adhesion tsis muaj zog thiab tej zaum yuav txawm poob.
Yuav kom daws tau cov teeb meem no, nws yog ib qho tsim nyog yuav tau txais cov txheej txheem tshwj xeeb anodizing los yog txhim kho cov txheej txheem uas twb muaj lawm, xws li kho qhov muaj pes tsawg leeg, qhov kub thiab txias tam sim no ntawm electrolyte, uas yuav cuam tshuam rau qhov zoo thiab kev ua haujlwm ntawm oxide zaj duab xis. Piv txwv li, pH ntawm cov electrolyte yuav cuam tshuam qhov kev loj hlob thiab pore qauv ntawm oxide zaj duab xis; Qhov ceev tam sim no yog ncaj qha ntsig txog lub thickness thiab hardness ntawm oxide zaj duab xis. Los ntawm kev tswj hwm cov kev txwv no, ib qho anodized aluminium zaj duab xis uas ua tau raws li cov kev xav tau tshwj xeeb tuaj yeem hloov kho.
Kev sim qhia tau hais tias tom qab anodizing 7 series aluminium alloy, oxide zaj duab xis nrog lub thickness ntawm 30um-50um tuaj yeem tau txais. Cov oxide zaj duab xis no tuaj yeem tsis tsuas yog tiv thaiv aluminium alloy substrate zoo thiab txuas ntxiv nws lub neej kev pab cuam, tab sis kuj ua tau raws li cov kev xav tau tshwj xeeb los ntawm kev kho cov txheej txheem tsis. Qhov saum npoo ntawm aluminium alloy tom qab anodizing kuj tuaj yeem dyed kom nqus cov organic lossis inorganic pigments kom muab cov xim aluminium alloy nplua nuj kom tau raws li qhov xav tau ntawm kev zoo nkauj.
Hauv luv, anodizing yog ib qho txiaj ntsig zoo los txhim kho kev ua haujlwm ntawm 7 series aluminium alloys. Los ntawm kev kho cov txheej txheem tsis, ib zaj duab xis tiv thaiv uas ua tau raws li qhov tshwj xeeb hardness thiab thickness yuav tsum tau npaj, uas zoo heev nthuav daim ntawv thov teb ntawm aluminium alloys.
Post lub sij hawm: Oct-19-2024
