Kev faib tawm ntawmcalcium silicon alloysyog ua raws li cov calcium (ca) thiab silicon (Si) cov ntsiab lus raws li cov cim tseem ceeb. Cov qib muaj cov qib siab muaj raws li hauv qab no (ua raws li GB / T 4701-2021 "
| Cov qib kawm | Calcium (CA) cov ntsiab lus ntau | Silicon (Si) cov ntsiab lus ntau yam | Qhov loj tshaj uas impurity (al + fe) cov ntsiab lus | Daim ntawv thov tseem ceeb |
|---|---|---|---|---|
| CA31SI55 | 30%-35% | 50%-58% | Tsawg dua los yog sib npaug rau 8% | Steelmaking deoxidation thiab desulfurization |
| CA28SI60 | 25%-30% | 58%-65% | Tsawg dua los yog sib npaug rau 7% | Cam khwb cia hlau inoculation, steelmaking silicon exterementation |
| CA20SI65 | 18%-22% | 63%-68% | Tsawg dua los yog sib npaug rau 6% | Aluminium Alloy Casting, Decor Hlau Deoxidation |
| Kev Nyaj Looj Casi | Ntau dua los yog sib npaug rau 30% (CA) | Ntau dua los yog sib npaug rau 60% (si) | Tag nrho cov impurities tsawg dua los yog sib npaug rau 0.1% | Cov ntaub ntawv semiconductor, hluav taws xob sib xyaw |
NCO TSEG: Qee cov qhab nia tshwj xeeb yuav muaj lawv cov ntsiab lus txawv tebchaws hloov kho raws li cov neeg siv kev cai (piv txwv li cov neeg siv tsis muaj (}
Qhov sib txawv hauv daim ntawv thov ntawm cov qib sib txawv ntawm calcium silicon alloys hauv steelmaking steelmaking
Casi alloys tsuas yog ua kom deoxidation, desulfurization, thiab cov qoob loo qoob loo, thiab cov qoob loo ua haujlwm hauv kev ua haujlwm statmaking. Cov qib sib txawv qhia qhov sib txawv ntawm lawv cov ntawv thov uas haum thiab cuam tshuam:
Deagidation nyhom: high - Calcium qib yog qhov zoo dua.
- Calce Cids (piv txwv li, CA3SI55):CA muaj kev muaj zog muaj zog rau O. Ntxiv 0.3% -0.5% (los ntawm Molygen cov ntsiab lus ntawm Molten Steel) tuaj yeem txo 30-400ppm rau 30-40ppm. Lub deagidation efficiency yog 40% -50% siab dua li ntawm dog digferrosiliconCov. Nws yog tsim nyog rau siab - Cov kabmob steels (piv txwv li cov kabmob steel, piv txwv li lub caij nplooj ntoo hlav), txhim kho lub neej qaug zog ntawm cov hlau.
Nruab nrab - calcium qib (piv txwv li, ca28si60):Lub deoxidation efficiency yog qis dua rau CA31Si55, tab sis silicon cov ntsiab lus hloov kho (ntxiv rau cov neeg muaj zog ntawm Molloy.
Cov nyhuv desulfurization: calcium cov ntsiab lus txiav txim siab desulfurization muaj peev xwm.
CA31SI55 Desulfurization tus nqi tuaj yeem ncav cuag 60% {}}}}}}}}} urten steel los ntawm 0.009% -0.012%). Cov Powered Point interusions muaj lub siab melting taw tes (2450 degree) thiab qis ntom ntom (2.58g / cm³), ua rau lawv yooj yim rau ntab thiab tshem tawm. Nws yog qhov tsim nyog rau cov hlaus nrog nruj cov ntaub ntawv Sulfur (xws li nuclear lub zog hlau thiab cov hlau tsawg steel hlau).
CA20SI65 Desulfurization tus nqi tsuas yog 40% -50%, haum tsuas yog rau cov roj carbon steel (cov khoom siv los ntawm cov neeg siv nyiaj ntau dua lossis sib npaug 0.05%).
Cov kws sau qoob loo: high - calcium qib txhim kho cov khoom siv mechanical.
CA CA31Si55 txhawb nqa kev tsim ntawm carbonitrides (xws li NB (C, n)) los ntawm cov hlau, ua yeeb yam li cov qoob loo grain. Qhov no ua kom pom cov qoob loo loj los ntawm 50μm rau 20 {-}}}}}}}}}} {}
Qhov sib txawv hauv daim ntawv thov ntawm cov qib sib txawv ntawm Sica Alloys hauv cov teb casting
Nyob rau hauv lub casting teb, silicon - calcium alloys feem ntau yog siv los ua inoculants thiab muaj pes tsawg. Kev xaiv ntawm qib yuav tsum muaj kev sib phim hom kev ua haujlwm thiab kev ua tau zoo:
Nrum hlau inoculation: siab - shatomon cov qib yoog raws li kev ua kom nruj
High - cov qib kawm silicon (xws li CA28SI60, CA20SI65):Si yog cov tseem ceeb rau kev teeb duab ntawm cov hlau cam khwb cia. Ntxiv 0.2% -0.4% (los ntawm ntau ntawm Molten Hlau) tuaj yeem nce cov kab hlau sib txuas ntawm 12J / CM² txog 18-22J / cm². Nws yog qhov haum rau cam khwb cia hlau qhov yuav tsum tau muaj kev nruj (xws li siv lub tshuab cuab tam, tsheb nres tsheb);
- Cov qhab nia qib (xws li CA31Si55):Cov nyhuv inoculation yog qhov tsis muaj zog, tab sis nws tuaj yeem txhim kho cov dej ntawm molten dub (viscosity txo los ntawm 5%) Cov kev tsis xws luag, haum rau cov qauv ua kom haum (xws li raws li precision li qub).
Tsis - ferrous alloy casting: txuam kev yuav tsum muaj raws li xav tau
Aluminium Alloy Casting:CA20si65 tuaj yeem pab tau SI rau Alloy Alloy (nce ntxiv Alloy), txhim kho cov kev ua kom zoo nkauj (tsim kev lag luam
Magnesium Alloy Casting:CA hauv CA31Si55 tuaj yeem kho cov tshuaj lag luam tshiab ntawm alloy (los ntawm 100 {{{}
Qhov sib txawv hauv daim ntawv thov ntawm cov qib sib txawv ntawm cov kab si siliconcalcium alloys hauv cov teb tshwj xeeb
Cov ntaub ntawv hluav taws xob teb: qib siab heev yog qhov tseem ceeb
Hluav taws xob - qib silicon {{1%) kom tsis txhob cuam tshuam txog kev tswj hwm hluav taws xob ntawm cov khoom hluav taws xob ntawm slici haracers. Lawv tuaj yeem siv los npajpolycrrystalline silicon(Los ntawm kev txo qis ntawm sio₂ los ntawm silicon - calcium), ua rau lawv haum rau chip tsim. Cov qhab nees zoo tib yam (xws li CA31Si55) tsis tuaj yeem ua tau raws li cov kev xav tau ntawm cov kev lag luam hluav taws xob vim ntau cov qib uas tsis sib luag.
Tshwj xeeb alloys: Tsim Tsim Tsim Tsim
Ntau lub stainless hlau:Ntxiv CA28SI60 txhim kho cov corrosion tsis kam ntawm cov hlau tsis muaj zog (ntau dua cr- Cov chaw seem ntawm kev ua haujlwm ntawm lub ntsej muag), txuas ntxiv ntawm cov hlau tsis muaj zog)
Thaum tshav kub kub - tiv taus alloy ntau lawm:CA hauv CA31Si55 txhim kho lub siab-}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Txoj Kev Tiv Thaiv Axoy ntawm 1000℃los ntawm 50%, ua kom haum pa turbine hniav tsim.
Cov ntsiab cai tseem ceeb rau xaiv cov qib calciumilico aloy
Saib xyuas "Cov haujlwm tseem ceeb":
Xaiv cov siab siab - calcium qib (CA31SI55) rau cov ntawv thov uas xav tau cov kev thov hauv Inoculation / Silicon ntxiv;
Match raws li "cov khoom siv huv volity":
Xaiv cov siab -}} Cov hoob kawm electronics thiab cov qib hluav taws xob nuclear, thiab cov kev siv cov pa rau cov ntawv thov kev lag luam dav dav;
Sib npaug raws li "tus nqi them":
High - Cov qhab nia qib muaj 20% {{}}}} 30% kim dua qhov siab- silicon qib. Rau tsis -} Cov ntawv tseem ceeb, cov qib nruab nrab (xws li CA28SI60) tuaj yeem siv los txo tus nqi.
