Aluminium yog lub teeb hlau. Nws lub tebchaw yog dav faib hauv qhov. Aluminium thiab alloys alloys tam sim no dav siv thiab ib qho ntawm cov pheej yig dua thiab siv cov ntaub ntawv. Lub ntiaj teb cov khoom siv aluminium tau tshaj qhov tawm tooj liab txij li xyoo 1956 thiab ib txwm yog thawj hauv cov hlau tsis huv. Cov kev tsim thiab kev siv tam sim no ntawm txhuas (hauv tons) yog thib ob rau cov hlau, ua qhov thib ob loj tshaj plaws hlau rau tib neeg siv
Tus nqi ntawm aluminium ingot yog tib yam li hais tias ntawm lwm cov hlau, thiab tus nqi yog volatile. Cov laj thawj tseem ceeb uas cuam tshuam rau tus nqi them rau yav tom ntej yog:
1. Cov khoom siv thiab xav tau
Kev muab khoom thiab kev xav tau ncaj qha cuam tshuam ncaj qha rau tus nqi tsim khoom lag luam. Thaum kev ua lag luam muab khoom lag luam thiab thov kev sib raug zoo muaj kev nyab xeeb ib ntus, cov nqi kev lag luam ntawm cov khoom lag luam yuav raug hloov nyob rau qhov chaw nqaim; thaum muab khoom thiab thov kev sib raug zoo yog nyob rau hauv tsis txaus, tus nqi yuav fluctuate. Hauv kev lag luam aluminium lub neej tom ntej, cov tub ua lag luam tuaj yeem them mus rau qhov ntsuas uas muaj kev cuam tshuam cov kev hloov hauv kev sib raug zoo ntawm cov khoom siv txhuas thiab cov khoom siv xav tau.
2. Cov khoom siv ntawm alumina
Tus nqi ntawm alumina suav txog 28% -34% ntawm tus nqi tsim khoom ntawm txhuas cov khoom noj. Vim tias qhov kev kub siab ntawm kev ua lag luam alumina thoob ntiaj teb, feem ntau ntawm lub ntiaj teb alumina (80% txog 90%) tau muag los ntawm kev sib cog lus ntev, yog li muaj ob peb aluminas muaj muag hauv cov khw muag khoom. Nyob rau hauv xyoo tas los no, qhov txuas ntxiv txuas ntxiv ntawm Tuam Tshoj electrolytic aluminium ntau lawm tau ua rau muaj kev lag luam ntau zuj zus hauv kev thov alumina. Tam sim no, kwv yees li ob feem peb ntawm cov khoom lag luam alumina yuav tsum tau yuav los ntawm cov chaw ua lag luam. Tuam Tshoj txoj kev yuav ntau ntawm alumina hauv kev ua lag luam thoob ntiaj teb tau txhawb nqa ncaj qha rau cov neeg nce nqi thoob ntiaj teb alumina nqi.
3. Qhov cuam tshuam ntawm tus nqi hluav taws xob
Kev lag luam electrolytic txhuas tseem tseem hu ua "hluav taws xob tsov" kev lag luam. Tam sim no, kev siv hluav taws xob nruab nrab ntawm tons ntawm txhuas hauv tsev thiab txawv teb txhuas cov nroj tsuag raug tswj hauv qab 15,000 kwh / t. Kev paub dhau los ntawm kev tsim cov khoom siv txhuas hauv cov tebchaws Western qhia tau hais tias thaum hluav taws xob hluav taws xob ntau tshaj 30% ntawm tus nqi ntawm cov khoom siv txhuas, nws suav hais tias yog qhov lag luam txaus ntshai.
Raws li Tuam Tshoj yog lub teb chaws tsis muaj zog, ntau qhov nce nqi hluav taws xob tau nce tus nqi nruab nrab hluav taws xob ntawm tuam txhab txhuas kom ntau dua 0.355 yuan / KWh, uas ze li 4 cents / KWh siab dua xyoo 2003, uas txhais tau tias cov nqi tsim hluav taws xob cov tuam txhab txhuas ib tons ntawm txhuas tau nce los ntawm 600 yuan. Yog li no, lub zog hloov tsis tsuas yog cuam tshuam rau Tuam Tshoj cov hluav taws xob electrolytic aluminium ntau lawm, tab sis kuj tseem cuam tshuam rau qhov kev lag luam hauv domestic thiab thoob ntiaj teb cov nqi khoom lag luam.
4. Qhov cuam tshuam ntawm kev lag luam
Aluminium tau dhau los ua ib qho tseem ceeb uas tsis yog hlau ntawm cov hlau. Tshwj xeeb hauv cov teb chaws vam meej los yog thaj chaw, kev siv cov txhuas tau cuam tshuam txog kev txhim kho hauv kev lag luam. Thaum lub teb chaws lossis cheeb tsam kev lag luam muaj kev txhim kho sai, kev noj haus txhuas yuav tsum nce tib lub sijhawm. Zoo sib xws, kev lag luam poob qis yuav ua rau muaj kev poob qis hauv kev siv txhuas hauv qee qhov kev lag luam, uas ua rau muaj kev hloov pauv hauv cov nqi txhuas.
5. Qhov cuam tshuam los ntawm kev hloov pauv hauv cov ntawv thov txhuas
Kev hloov pauv ntawm kev siv thiab ntim ntawm cov khoom siv txhuas hauv cov lag luam loj xws li kev tsim tsheb, kev tsim kho tshuab, xaim thiab xaim yuav muaj qhov cuam tshuam tseem ceeb ntawm tus nqi txhuas.