Aluminium muaj lub neej voj voog uas ob peb lwm yam hlau tuaj yeem sib phim.Nws yog corrosion resistant thiab tuaj yeem rov ua dua thiab rov ua dua, tsuas yog ib feem ntawm lub zog siv los tsim cov hlau tseem ceeb.
Qhov no ua rau txhuas yog cov khoom siv zoo heev - hloov kho thiab rov ua kom tau raws li qhov xav tau thiab cov kev sib tw ntawm cov sijhawm sib txawv thiab cov khoom.
Aluminium nqi saw
1. Bauxite mining
Aluminium ntau lawm pib nrog cov khoom siv raw bauxite, uas muaj 15-25% txhuas thiab feem ntau pom nyob rau hauv ib txoj siv nyob ib ncig ntawm txoj kab nruab nrab.Muaj nyob ib ncig ntawm 29 billion tonnes ntawm paub khaws cia ntawm bauxite thiab ntawm tus nqi tam sim no ntawm kev rho tawm, cov reserves no yuav kav peb ntau tshaj 100 xyoo.Txawm li cas los xij, muaj ntau qhov kev tshawb nrhiav tsis pom uas yuav txuas ntxiv mus rau 250-340 xyoo.
2. Alumina refining
Siv cov txheej txheem Bayer, alumina (aluminium oxide) yog muab rho tawm los ntawm bauxite nyob rau hauv lub refinery.Tom qab ntawd cov alumina yog siv los tsim cov hlau tseem ceeb ntawm qhov sib piv ntawm 2: 1 (2 tonnes ntawm alumina = 1 tonne ntawm txhuas).
3. Cov khoom siv aluminium thawj
Aluminium atom nyob rau hauv alumina yog bonded rau oxygen thiab yuav tsum tau tawg los ntawm electrolysis los tsim txhuas hlau.Qhov no yog ua tiav hauv cov kab ntau lawm thiab yog cov txheej txheem siv hluav taws xob uas xav tau hluav taws xob ntau.Siv lub zog tauj dua tshiab thiab txuas ntxiv txhim kho peb cov txheej txheem tsim khoom yog ib qho tseem ceeb kom ua tau raws li peb lub hom phiaj ntawm kev ua cov pa roj carbon nruab nrab hauv kev xav txog lub neej los ntawm 2020.
4. Aluminium fabrication
Hydro muab kev lag luam nrog ntau tshaj 3 lab tonnes ntawm aluminium casthouse khoom txhua xyoo, ua rau peb ua tus xa khoom ntawm extrusion ingot, sheet ingot, foundry alloys thiab high-purity aluminium nrog lub ntiaj teb no.Feem ntau siv ntawm thawj aluminium yog extruding, dov thiab casting:
4.1 Aluminium extruding
Extrusion tso cai rau shaping txhuas rau hauv yuav luag txhua daim ntawv imaginable siv npaj-ua los yog tailored profiles.
4.2 Aluminium dov
Cov ntawv txhuas uas koj siv hauv koj chav ua noj yog ib qho piv txwv zoo ntawm cov khoom siv aluminium dov.Muab nws qhov kev ua tau zoo heev, txhuas tuaj yeem dov los ntawm 60 cm mus rau 2 mm thiab ntxiv rau hauv cov ntawv ci li nyias li 0.006 hli thiab tseem tuaj yeem ua tsis tiav rau lub teeb, aroma thiab saj.
4.3 Aluminium casting
Tsim cov hlau nrog lwm cov hlau hloov cov khoom ntawm txhuas, ntxiv zog, ci ntsa iab thiab / lossis ductility.Peb cov khoom casthouse, xws li extrusion ingots, ntawv ingots, foundry alloys, hlau rods thiab siab purity aluminium, yog siv nyob rau hauv tsheb, thauj, tsev, tshav kub hloov lwm lub tsev, electronics thiab aviation.
5. Kev rov ua dua tshiab
Recycling aluminium siv tsuas yog 5% ntawm lub zog xav tau los tsim cov hlau thawj.Tsis tas li ntawd, txhuas tsis deteriorate los ntawm recycling thiab li ntawm 75% ntawm tag nrho cov txhuas puas tau tsim yog tseem siv.Peb lub hom phiaj yog kom loj hlob sai dua li kev lag luam hauv kev rov ua dua tshiab thiab ua tus thawj coj hauv kev rov ua dua tshiab ntawm cov saw hlau txhuas, rov qab 1 lab tonnes ntawm cov khoom tsis huv thiab tom qab cov neeg siv khoom seem txhuas txhua xyoo.
Post lub sij hawm: Jun-02-2022