I-7075 i-aluminium alloy, njenge-7 series aluminium alloy kunye nomxholo ophezulu we-zinc, isetyenziswa ngokubanzi kwi-aerospace, imikhosi yemikhosi kunye nemveliso ephezulu yokuvelisa ngenxa yeempawu zayo ezibalaseleyo kunye neempawu ezilula. Nangona kunjalo, kukho imiceli mngeni ethile xa kusenziwa unyango olungaphezulu, ngakumbi xa kusenziwa i-anodizing ukomeleza ukuxhathisa komhlwa kunye nokuqina komphezulu.
I-Anodizing yinkqubo ye-electrochemical apho ifilimu ye-aluminium oxide inokuqulunqwa kwindawo yesinyithi ukuphucula ukuxhathisa kwayo, ukuxhathisa ukubola kunye nobuhle. Nangona kunjalo, ngenxa yomxholo ophezulu we-zinc kwi-7075 ye-aluminium alloy kunye neempawu zokubunjwa kwe-Al-Zn-Mg ingxubevange, ezinye iingxaki zivame ukuba zenzeke ngexesha le-anodizing:
1. Umbala ongalinganiyo:I-zinc element inempembelelo enkulu kwimpembelelo ye-oxidation, enokuthi iholele ngokulula kumaphethelo amhlophe, amabala amnyama, kunye nemibala engalinganiyo kwi-workpiece emva kwe-oxidation. Ezi ngxaki zibonakala ngokukodwa xa uzama ukuyixuba kwimibala eqaqambileyo (efana nobomvu, i-orenji, njl.) kuba ukuzinza kwale mibala kuncinci.
2. Ukunamatheliswa okunganeleyo kwefilimu ye-oxide:Xa inkqubo yemveli sulfuric acid anodizing isetyenziselwa ukunyanga 7 series ingxubevange aluminiyam, ngenxa yokusasazwa ngokungalingani kunye nokwahlulwa amacandelo aluminiyam ingxubevange, ubungakanani micropores kumphezulu oxide ifilimu iya kwahluka kakhulu emva anodizing. Oku kukhokelela kumahluko kumgangatho kunye nokunamathela kwefilimu ye-oxide kwiindawo ezahlukeneyo, kwaye ifilimu ye-oxide kwezinye iindawo inonamathela obuthathaka kwaye isenokuwa.
Ukuze kulungiswe ezi ngxaki, kuyimfuneko ukwamkela inkqubo ekhethekileyo ye-anodizing okanye ukuphucula inkqubo ekhoyo, njengokulungelelanisa ukubunjwa, ubushushu kunye nokuxinana kwangoku kwe-electrolyte, okuya kuchaphazela umgangatho kunye nokusebenza kwefilimu ye-oxide. Ngokomzekelo, i-pH ye-electrolyte iya kuchaphazela izinga lokukhula kunye nesakhiwo se-pore yefilimu ye-oxide; ubuninzi bangoku buhambelana ngokuthe ngqo nobukhulu kunye nobunzima befilimu ye-oxide. Ngokulawula ngokuchanekileyo ezi parameters, ifilimu ye-aluminium anodized ehlangabezana neemfuno ezithile inokwenziwa ngokwezifiso.
Iimvavanyo zibonisa ukuba emva kwe-anodizing i-7 series aluminium alloy, ifilimu ye-oxide enobunzima be-30um-50um inokufumaneka. Le filimu ye-oxide ayikwazi ukukhusela ngokufanelekileyo i-aluminium alloy substrate kwaye yandise ubomi bayo benkonzo, kodwa ihlangabezane neemfuno ezithile zokusebenza ngokulungelelanisa iiparitha zenkqubo. Umphezulu wealloyi ye-aluminiyam emva kwe-anodizing inokudaywa ukuze ifunxe i-organic okanye i-pigments ye-inorganic ukunika i-aluminium alloy imibala ecebileyo ukuhlangabezana neemfuno ezahlukeneyo zobuhle.
Kufuphi, i-anodizing yindlela esebenzayo yokuphucula ukusebenza kwe-7 series aluminium alloys. Ngokulungelelanisa iiparitha zenkqubo, ifilimu ekhuselayo ehlangabezana nobunzima obuthile kunye neemfuno zokutyeba ingalungiswa, eyandisa kakhulu intsimi yesicelo se-aluminium alloys.
Ixesha lokuposa: Oct-19-2024
