Tuam Tshoj Purifying Molten Steel Steelmaking Metallurgy Alloying Additive Alloy Supplier Silicon Calcium Alloy Calcium Silicon Alloy Chaw tsim tshuaj paus thiab tsum | Zhaojin
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Purifying Molten Steel Steelmaking Metallurgy Alloying Additive Alloy Supplier Silicon Calcium Alloy Calcium Silicon Alloy

Silicon-calcium alloy yog cov khoom sib xyaw ua ke ntawm cov khoom silicon, calcium thiab hlau. Nws yog ib qho zoo tagnrho deoxidizer thiab desulfurizer. Nws yog dav siv nyob rau hauv zus tau tej cov hlau zoo, uas tsis muaj carbon steel, stainless hlau thiab lwm yam tshwj xeeb alloys xws li nickel-based alloys thiab titanium-raws li alloys; nws kuj yog tsim los ua tus neeg sawv cev ua kom sov rau converter steelmaking rhiav; nws kuj tseem siv tau los ua ib qho inoculant rau cam khwb cia hlau thiab additives nyob rau hauv zus tau tej cov hlau ductile.


Product Detail

Khoom cim npe

siv

Raws li compound deoxidizer (deoxidization, desulphurization thiab degassing) Siv hauv steelmaking, alloy smelting. Raws li inoculant, kuj siv nyob rau hauv casting ntau lawm.

Lub cev lub xeev:
Cov seem ca-si yog lub teeb grey uas tshwm sim nrog pom tseeb cov duab zoo. Lump, nplej thiab hmoov.

Pob:
peb lub tuam txhab tuaj yeem muab ntau yam kev teev tseg hauv cov khoom raws li cov neeg siv khoom xav tau, uas yog ntim nrog cov hnab yas thiab lub hnab ntim.

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Cov khoom thiab qhov zoo ntawm ferrosilicon

Ib qho binary alloy tsim ntawm silicon thiab calcium belongs rau qeb ntawm ferroalloys. Nws cov khoom tseem ceeb yog silicon thiab calcium, thiab nws kuj muaj impurities xws li hlau, txhuas, carbon, sulfur thiab phosphorus nyob rau hauv ntau yam. Hauv kev lag luam hlau thiab hlau, nws yog siv los ua calcium additive, deoxidizer, desulfurizer thiab denaturant rau non-metallic inclusions. Nws yog siv los ua inoculant thiab denaturant hauv kev lag luam cam khwb cia hlau. Nyob rau hauv lub hauv paus ntawm silicon-calcium alloy, lwm yam ntsiab lus ntxiv rau tsim ib tug ternary los yog multi-element composite alloy. Xws li Si-Ca-Al; Si-Ca-Mn; Si-Ca-Ba, thiab lwm yam, siv los ua deoxidizer, desulfurizer, denitrification tus neeg saib xyuas thiab alloying tus neeg sawv cev hauv hlau thiab hlau metallurgy.

Calcium yog alkaline lub ntiaj teb hlau nrog ib tug atomic hnyav ntawm 40.08, ib txheej hluav taws xob qauv ntawm 4S2, ib tug ceev (20 ° C) ntawm 1.55g / cm3, ib tug melting point ntawm 839 ± 2 ° C, thiab boiling point ntawm 1484 °. C. Kev sib raug zoo ntawm vapor siab ntawm calcium thiab kub yog

lnpCa = 25.7691-20283.9T-1-1.0216lnT

Qhov twg pCa yog vapor siab ntawm calcium, Pa; T yog qhov kub thiab txias, K. Silicon thiab calcium tsim peb lub tebchaw, uas yog CaSi, Ca2Si thiab CaSi2. CaSi (41.2% Si) ruaj khov ntawm qhov kub thiab txias. Ca2Si (29.5% Si) yog ib qho peritectic compound tsim ntawm Ca thiab CaSi ntawm qhov kub thiab txias hauv qab 910 ° C. CaSi2 (58.36% Si) yog ib qho peritectic compound tsim ntawm CaSi thiab Si ntawm qhov kub ntawm 1020 ° C. Cov theem muaj pes tsawg leeg ntawm industrially ua silicon-calcium alloys yog hais txog 77% CaSi2, 5% mus rau 15% CaSi, dawb Si <20%, thiab SiC <8%. Qhov ntom ntawm silicon-calcium alloy muaj 30% mus rau 33% ntawm Ca thiab li 5% ntawm Fe yog li ntawm 2.2g / cm3, thiab melting kub yog li ntawm 980 txog 1200 ° C.

Chemical element

Qib

Chemical cov ntsiab lus%

Ca

Si

C

AI

P

S

≥

≤

Ca 30 Si 60

30

60

1.0

2.0

0.04 ib

0.06 ib

Ca 30 Si58

30

58

1.0

2.0

0.04 ib

0.06 ib

Ca 28 Si55

28

55

1.0

2.4

0.04 ib

0.06 ib

Ca25 Si 50

25

50

1.0

2.4

0.04 ib

0.06 ib
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