Kev faib tawm los ntawm cov ntsiab lus carbon
Thawj qhov sib txawv ntawm cov pa roj carbon-rau-silicon piv, uas txiav txim siab nws cov ntawv thov ua tau zoo.
| Ntaus | Cov ntsiab lus carbon | Silicon Cov Ntsiab Lus | Cov Nta Tseem Ceeb |
|---|---|---|---|
| Qib Qib | 8–15% | 60–70% | Sib npaug rau General Steelmaking deoxidation thiab carburization. |
| High-carbon qib | 15–20% | 55–65% | Nyiam rau cam khwb cia hlau ntau lawm vim yog txhim kho graphitization. |
| Tsawg-qib | 3–8% | 70–75% | Siv thaum muaj cov pa roj carbon minimal ntxiv (piv txwv li, cov hlau tshwj xeeb). |
Kev faib tawm los ntawm cov txheej txheem ntau lawm
Kev tsim qauv kev tsim khoom cuam tshuam purity thiab lub cev daim ntawv:
a. Submerged arc rauv (Saf) Khoom:
Feem ntau hom, tsim los ntawm smelting quartz + carbonaceous cov ntaub ntawv (Coke, thee).
Muaj cov trac impurities (FE, AL, CA).
Feem ntau muab tau raws li cov lumps tsis xwm yeem (10-50mm).
b. Refined High-Carbon Silicon:
Lim los ntawm theem nrab ua haujlwm (piv txwv li cov tshuab pa oxygen).
Cov qib qis (<1% Al, Ca).
Siv rau hauv kev ua tau zoo cov hlau lossis sic synthesis.
c. Granuled \/ Hmoov Daim Ntawv:
Ua tiav rau hauv granules (1-10 hli) lossis hmoov rau precision casting lossis vuam electrodes.
Ua kom ntseeg tau nrawm dua hauv cov hlau.
Kev faib tawm los ntawm daim ntawv thov
a. Qib Steelming:
Zoo rau Deoxidation thiab alloying (piv txwv li, LC qhab nia rau cov hlau roj carbon tsawg).
b. Foundry Qib:
High-carbon variants (15-20% c) los txhim kho graphite tsim hauv cov hlau cam khwb cia.
c. Qib Tshwj Xeeb Muaj Qib:
Ultra-high purity (>75% SI) rau Silicon Carbide kev tsim khoom lossis kev lag luam tshuaj lom neeg.
Cim npe nrov: Kev faib tawm ntawm cov pa roj carbon ntau, Tuam Tshoj kev faib tawm ntawm cov pa roj carbon (cov chaw muag khoom, Hoobkas