Lub hauv paus ntsiab lus tseem ceeb ntawm aluminium profile ua raws li cov yas zoo heev ntawm txhuas thiab txhuas alloys. Nws yog lub tshuab ua hlau uas siv cov yas deformation kom tau txais cov hom phiaj, qhov loj me, thiab cov khoom. Cov ntsiab cai txawv nyob rau hauv txhua theem ua:
1. Melting and Casting Stage (Kev Npaj Cov Khoom Kub Kub): Lub hauv paus aluminium / recycled aluminium yog melted ntawm qhov kub thiab txias, alloying ntsiab ntxiv los kho cov muaj pes tsawg leeg, impurities thiab gases raug tshem tawm, thiab ces nws yog txias thiab cam khwb cia rau hauv ib puag ncig ingot. Lub hauv paus ntsiab lus tseem ceeb yog homogenization ntawm cov hlau molten muaj pes tsawg leeg + solidification, muab cov khoom tsim nyog rau kev ua cov yas tom ntej.
2. Extrusion Forming Stage (Core ntawm Profile Forming): Qhov no yog txoj kev ua haujlwm tseem ceeb tshaj plaws rau txhuas profiles. Lub hauv paus ntsiab lus zoo ib yam li cov tshuaj txhuam hniav: Aluminium blanks rhuab mus rau ib lub xeev yas ntawm 400-500℃yog raug rau sab nraud quab yuam los ntawm ib tug extrusion pas nrig nyob rau hauv ib tug extrusion cylinder, yuam cov txhuas cov ntaub ntawv mus rau undergo directional yas deformation thiab ntws tawm ntawm lub tuag orifice ntawm ib tug customized corponse profile, ncaj qha mus rau qhov loj me.
Cov txheej txheem kev hloov kho yog tsim rau cov profiles sib txawv: cov khoom siv tau tsim los siv rau pem hauv ntej / thim rov qab / sib txuas extrusion, thaum hollow profiles yog tsim los ntawm kev tho rab koob + vuam extrusion. Niaj hnub nimno isothermal extrusion tshuab tswj lub qhov hluav taws xob kub hloov pauv hauv ± 10 degree, txo cov khoom tsis xws luag los ntawm qhov tsis sib xws ntawm deformation thiab txhim kho zoo uniformity.
3. Cov theem tom ntej tiav
Cov txheej txheem kev ua tiav sib txawv siv tau:
Khoov: Kev tswj cov yas deformation ntawm aluminium profile yog ua tiav los ntawm kev quab yuam sab nraud, nrog rau txheej txheej hauv qhov nro thiab txheej txheej hauv qab compression. Lub hom phiaj curvature yog tau los ntawm kev tswj lub vojvoog dabtsi yog khoov thiab springback nyiaj. Txias dabtsi yog khoov yog haum rau cov duab yooj yim, thaum kub dabtsi yog khoov (200-300 degree) tuaj yeem ua tiav txoj haujlwm curvature.
Tapping: Cov xov raug txiav mus rau hauv qhov los ntawm qhov ntawm lub ntsej muag kawg ntawm qhov profile siv tus kais, muab cov qauv kho rau kev txuas txuas txuas ntxiv.
Anodizing: Los ntawm electrochemical kev txiav txim, ib tug ntom thiab ntxeem tau dag oxide zaj duab xis hlob nyob rau saum npoo ntawm txhuas profile. Tom qab sealing lub qhov, corrosion kuj thiab hnav tsis kam yog txhim kho, thiab nws kuj yuav dyed rau aesthetic teebmeem.
