Silicon-barium alloys yog tsim los ntawm kev rov ua kom muaj kev tiv thaiv barium (piv txwv li, bao lossis bigo₃) nrog silicon (lossis ferrosilicon) siv ib qhoCov Hluav Taws Xob Electrosilistrial Txuj CilossisAluminium-thermal txoj kev.
1. Thermal txoj kev ntawm silicon ntau lawm (smelting nyob rau hauv ib qho hluav taws xob arc rauv)
Kev siv tau: Haum rau kev tsim cov khoom lag luam loj loj, tus nqi tsawg tab sis siab dua kev siv zog.
Cov Khoom Siv Raw:
Barium qhov chaw: Barium oxide (Bao) lossis Barium Carbonate (Baco₃).
Txo tus neeg sawv cev: Ferrosilicon (Fesi75), Silicon Hmoov (Si)
Tus neeg sawv cev melting: txiv qaub (Cao, tswj kev swb furtity)
Txheej txheem Technological:
Sib xyaw cov khoom xyaw:
Sib tov Rao (los yog baco₃), ferrosilicon thiab txiv qaub raws li cov stoichiometric piv rau cov lus sib piv (bao: si ≈ 1: 1).
Txo hauv ARC Rauv:
Hauvib peb-theem hluav taws xob arc rauvua kom sov rau1400 ~ 1600 degree, Bao raug txo los ntawm Si: Bao +
Si → Basi + Sio2
Hlau (FE) hauv Ferrosilicon tsis koom nrog cov tshuaj tiv thaiv thiab hloov mus rau hauv Alloy (FE-BA-SI-Si-SI).
Slag Kub Department:
Ib qho silicon-barium alloy (denser) tog rau hauv qab ntawm cov cub tawg, calcium silicate slag (Casio₃) floats.
Casting thiab Crushing:
Cov kua alloy tau hliv rau hauv kev noj thiab, tom qab txias, yog crushed rau hauv pob lossis cov khoom lag luam.
Cov lus qhia:
Cov khoom muaj li 30% ~ 50% BA, tus so yog si thiab ib qho nyiaj me me.
Lub Alkalinity ntawm Slag (sabo / siio₂) yuav tsum tau tswj kom nce rov qab tus nqi ntawm barium.
2. Thermal txoj kev ntawm txhuas ntau lawm (tus kheej-propagating high-kub synthesis, shs)
Daim ntawv thov: Haum rau cov khoom siv tsawg heev ntawm cov qib siab-purity-purity-purity-purity-purity-purity-purity-purity-purity-purity-purity-purity-purity-purity-purity pawm, cov tshuaj tiv thaiv yog nrawm thiab yuav tsum tau tswj nruj.
Cov Khoom Siv Raw:
Barium qhov: Bao lossis Baco₃.
Txo tus neeg sawv cev: txhuas hmoov (al).
Thaum tshav kub kub lub tshuab hluav taws xob: poov tshuaj chlorate (Kclo₃, ib qho kev sib cais exothermic)
Kev ua:
Sib xyaw cov khoom xyaw:
Sib tov Rao, cov hmoov thiab ib qho me me ntawm Kllo₃ raws li cov sib piv stoichiometric (bao: al ≈ 3: 2).
Kev xam cov tshuaj tiv thaiv:
Hlawv hauvIb qho magnesium crucibleTxhawm rau pib ib qho tshuaj tiv thaiv Alleothermic (saum 2000 degree):
3bao + 2 → al → 3ba + al2o 3 + ntau npaum li cas ntawm tshav kub.
Lub resulting barium (BA) sib txuas nrog silicon (si) los ua ib qho basi alloy.
Sedimentary sib cais:
Cov khoom ua kua silicon-barium anquoy tog rau hauv qab, thiab al₂o₃ sluaj floats.
Refining Thiab Casting:
Cov roj inert (piv txwv li, ar) kis dhau los ntawm alloy kom tshem tawm impurities, yog tias tsim nyog, thiab cov ingots raug pov.
Cov lus qhia:
Cov khoom tuaj yeem muaj txog 60% lossis ntau dua BA, nrog qib siab ntawm kev coj dawb huv.
Cov tshuaj tiv thaiv kev ua txhaum, tawg-thawj ntsuas yuav tsum tau, thiab haum rau kev kuaj tshawb fawb lossis cov kev npaj tshwj xeeb alloys.
