Los ntawm thaum ntxov 1970s mus rau lig 1990s, lub qub Soviet Union tau muab rho tawm thiab rov qab scandium los ntawm metallurgical pov tseg residue thiab tailings ntawm non-ferrous hlau xws li tungsten, titanium, uranium, txhuas, thiab lwm yam. daim ntawv thov kev loj hlob tsuas yog rau cov tub rog lub hom phiaj, tsim ib tug kuj ua tiav kev tshawb fawb, ntau lawm, daim ntawv thov thiab kev loj hlob system ntawm scandium thiab nws cov ntaub ntawv. Tom qab thawj zaug International Scandium Metallurgy thiab Scandium Materials Science thiab Technology Conference nyob rau hauv Moscow nyob rau hauv 1994, ib puag ncig ntawm scandium kev tshawb fawb thiab kev loj hlob upsurge twb teem tawm thoob ntiaj teb.
Tuam Tshoj yog nplua nuj nyob rau hauv scandium kev pab cuam thiab yog ib tug loj tsim thiab exporter ntawm thawj scandium metallurgical khoom nyob rau hauv lub ntiaj teb no ua lag luam. Txawm li cas los xij, nws qhov kev sib sib zog nqus ua tiav thiab daim ntawv thov kev tshawb fawb thiab kev txhim kho tseem nyob hauv thawj theem. Txhim khu kev tshawb fawb, kev tsim khoom, kev siv thiab kev txhim kho ntawm scandium metallurgy thiab scandium cov ntaub ntawv, tsim kom muaj kev lag luam tshwj xeeb ntawm scandium metallurgy thiab scandium cov ntaub ntawv, thiab hloov qhov zoo ntawm cov khoom siv scandium rau hauv cov khoom siv thev naus laus zis zoo yog cov haujlwm tseem ceeb rau kev tshawb fawb thiab thev naus laus zis. scandium metallurgical cov ntaub ntawv hauv Suav teb.
Scandium yog lub zog hloov kho rau aluminium alloy casting grain qauv thiab muaj zog recrystallization inhibitor rau cov khoom tiav tiav. Ntxiv cov kab scandium tuaj yeem txhim kho cov khoom zoo ntawm cov tsoos aluminium alloys. Scandium yuav tsum tau ntxiv rau hauv daim ntawv ntawm tus tswv alloy hauv kev tsim cov khoom lag luam aluminium scandium alloy. Aluminium scandium master alloy yog cov khoom siv tseem ceeb rau kev tsim cov khoom lag luam aluminium scandium alloy.
Txhawm rau ua kom tus tswv alloy yaj sai dua thaum ntxiv molten aluminium, nws yuav tsum tau hais tias lub melting point ntawm tus tswv alloy yuav tsum nyob ze li sai tau rau lub melting kub ntawm aluminium alloy. Cov ntsiab lus scandium nyob rau hauv scandium master alloy feem ntau yog 2 feem pua - 4 feem pua (feem ntau, tib yam hauv qab). Lub intermediate alloy yuav tsum muaj cov khoom sib xws thiab cov txiaj ntsig kev xeem raug. Txhawm rau ua lub luag haujlwm zoo dua hauv kev ua kom zoo ntawm cov khoom lag luam ntawm scandium master alloy, intermetallic compound particles nyob rau hauv tus tswv alloy yuav tsum tsis txhob loj dhau thiab yuav tsum tau muab sib npaug. Tsis tas li ntawd, cov ntsiab lus impurity ntawm tus tswv alloy kuj muaj qee yam yuav tsum tau ua. Kev xyaum qhia tau hais tias qhov zoo ntawm tus tswv alloy muaj kev cuam tshuam zoo rau cov khoom ntawm kev lag luam Al Sc alloy.
Txoj kev tsim khoom ntawm Al Sc master alloy tuaj yeem muab faib ua ntau pawg, xws li kev sib koom ua ke, molten ntsev electrolysis txoj kev, lub tshuab nqus tsev thiab tsis nqus aluminothermic txo txoj kev. Cov kws tshawb fawb feem ntau yog tsom rau hauv Russia, Tebchaws Asmeskas thiab Tuam Tshoj, uas tej zaum yuav cuam tshuam nrog kev pib ua ntej ntawm aluminium scandium alloy kev tshawb fawb hauv cov tebchaws no, thiab lawv yog txhua lub tebchaws uas muaj peev txheej loj scandium.
