FERRO Silicon 70-75% Cov Tub Ntxhais Kev Qhia Txog Deagidizing Ua Tau Zoo Rau Cov Hlau Steel

Hauv kev lag luam steelmaking, Deagidation yog ib txoj kev tseem ceeb uas txiav txim siab ncaj qha, kev ua tau zoo, thiab lub neej ntawm cov khoom lag luam steel. Ntawm ntau Deoxidizers, Ferro Silica 70 {{}}}}}} 75% sawv tawm raws li qhov kev xaiv tseem ceeb rau steelmakers thoob ntiaj teb. Nws cov ntsiab lus txawv silicon cov ntsiab lus sib piv, deoxidation zoo heev, thiab nqi-ua tau zoo ua rau muaj kev tsis tseem ceeb hauv kev tsim tawm steel zoo.

FERRO Siliconyog ib qho alloy muaj cov hlau thiab silicon, uas tau smelted nyob rau hauv ib tug hluav taws xob arc siv Quartz Pob Zeb, ore thiab coke raws li cov khoom raw. Qhov "70 {-} 75%" nyob rau hauv nws cov feem pua ​​ntawm cov khoom lag luam staton (40-60 (40- silicon)

Ntxiv rau 70-75% silicon,Fesi 70- Fesi 75%Feem ntau muaj 20 {- 25% hlau, thiab trac impurities xws li txhuas, roj carbon, carbon, thiab leej faj. Ntawm lawv, cov ntsiab lus ntawm txhuas thiab calcium (feem ntau tsawg dua 1%) tuaj yeem tsim cov ntsiab lus ntawm cov roj carbon monoxent {}% yuav tsum tau cov ntsiab lus carbon monoxide qis dua 0.05% kom tsis txhob muaj kev cuam tshuam zoo rau cov hlau zoo.

Deagidation mechanism: kev tshem tawm cov pa oxygen

 Thaum lub sij hawm steelmaking, molten steel in nqusababably nqus cov pa oxygen los ntawm huab cua thiab oxidizing cov neeg sawv cev, sib sau cov pa oxygen thiab oxide suav nrog. Cov suav no yuav txo cov tawv, weldability, thiab corrosion tsis kam ntawm cov hlau. Cov tub ntxhais muaj nuj nqi ntawm ferro silicon 70 - 75% yog kom hnov ​​cov pa oxygen hauv molten steel los ua ruaj khov thiab yooj yim} kom pom kev suav nrog.

 Silicon hauv Ferro Silicon 70 -}}}} }acen nrog cov pa oxygen yog ntau dua li cov pa oxygen los ua silicon dioxide (sitio₂). Lub ntsiab lus melting ntawm Sio₂ yog 1723 degree, uas yog siab dua qhov kub ntawm Molten Hlau (1500-1600 degree), yog li nws yuav precipate nyob rau hauv daim ntawv ntawm cov khoom ntawm cov khoom ntawm cov khoom. Cov lus no tuaj yeem sib sau ua ke rau hauv cov khoom loj thiab ntab rau ntawm Molten Steel nrog kev pab ntawm stirring, thaum kawg raug tshem tawm nrog slag.

 Compared with other deoxidizers (such as ferromanganese or aluminum), the advantage of Ferro Silicon 70-75% lies in the moderate stability of SiO₂. Nws yuav tsis tsim cov kev suav zoo dhau ntawm qhov uas nyuaj rau tshem tawm (zoo li txhuas oxide) thiab nws tsis muaj deoxidation tsis txaus (zoo li tus neeg tsawg-silicon ferromanganese).

Cov txiaj ntsig tshwj xeeb: txuam txuam thiab nqi

-} deoxidation siab:

Qhov 70 {-}} 75% silicon cov ntsiab lus sib luag thiab kev nyab xeeb. Cov ntsiab lus ntau dua silicon dua li tsawg-silicon ferro silicon txhais tau tias muaj peev xwm txo cov pa roj oxygen, uas tuaj yeem ua kom sai li sai tau rau cov roj carbon thiab hlau feem ntau.

{{0- tus nqi-} ua tau zoo:

Piv nrog high - silicon ferro silicon (siab dua 80%% muaj qis dua cov nqi smicting (tsawg dua quartz pob zeb thiab kev noj haus tsawg) thaum ua kom muaj kev cuam tshuam deoxidation. Rau steelmakers, nws tuaj yeem txo cov deoxidation tus nqi los ntawm 10-15%.

{{0 {}} Txhim Kho Cov Hlau Kev Ua Haujlwm:

Silicon yaj nyob rau hauv Molten hlau (tom qab deoxidation) tuaj yeem kho cov qauv nplej ntawm cov hlau, txhim kho nws lub zog thiab hardness. Nyob rau tib lub sijhawm, nws tuaj yeem txhim kho cov xeb tsis kam ntawm cov hlau, ua kom haum rau kev tsim cov qauv khoom thiab kav dej.

- Qhov zoo sib xws:

FERRO Silicon 70-75% tuaj yeem siv ua ke nrog lwm tus deoxidizers (xws li ferroaluminum lossiscalcium silicon) Kom ua tiav "deoxidation sib sib zog". Piv txwv li, thaum smelting siab - zoo alloy hlau, thiab tom qab ntawd ib qho me me aluminium 70-75 tsis tsuas yog ua kom txuag tau cov nyhuv tab sis kuj txuag tau tus nqi kim kim.

1. Tswj kev sib ntxiv ntxiv:

Qhov zoo tshaj plaws ntxiv kub ntawm Ferro Silic Silicon 70-75% yog 1550-1600 degree. Yog hais tias qhov ntsuas kub tsawg dhau, lub alloy yuav tsis yaj kiag li, ua rau muaj deoxidation tsis sib xws; Yog tias qhov ntsuas kub siab dhau, cov siliab yuav oxidized los ntawm huab cua, txo tus nqi siv. Nws raug nquahu kom ntxiv nws 5-10 feeb ua ntej cov hlau Molten tau raug tshem los xyuas kom muaj sijhawm txaus.

2. Txiav txim siab ntxiv tus nqi tsim nyog:

Qhov nyiaj ntxiv yuav tsum tau hloov kho raws li qhov kawg -|Cov ntsiab lus oxygen ntawm Molten Steel cov ntsiab lus. Feem ntau, rau txhua 0.01% txo qis hauv cov ntsiab lus pa oxygen, txog 0.05 kg ntawm Ferrro silica silicon 70-75% ib tuj ntawm cov hlau yog qhov yuav tsum tau ua.

3. Txais yuav txoj kev pub mis:

Nws raug nquahu kom siv cov feeder ntxiv rau 70-75% ferro silicon rau qhov sib sib zog ntawm Molten hlau, lossis ntxiv nws ua ke nrog Molten Steel thaum tab tom tapping. Zam kev ntxiv nws ncaj qha rau saum npoo ntawm Molten hlau, raws li qhov no yuav ua rau muaj ntau npaum li cas ntawm silicon oxidation thiab cov pa luam yeeb.

4. Ntxiv dag zog thiab tshem tawm kev tshem tawm slag:

Tom qab ntxiv 70 {{-}} 75% FESI alloy, siv cov cav sib ceg lossis tshuab sib cav los yog ntab ntawm cov sio₂ suav nrog. Nyob rau tib lub sijhawm, kom raws sij hawm lub swb uas muaj siio₂ los tiv thaiv cov kev suav nrog rov nkag mus rau cov hlau molten.

Qhov zoo ntawm Ferro Silicon 70-75% cuam tshuam ncaj qha cuam tshuam cov deagidation nyhuv thiab cov hlau zoo. Steelmakers yuav tsum tsom rau cov ntsuas hauv qab no thaum yuav khoom:

FERRO Silicon 70-75% tau dhau los ua tus tub ntxhaisDeagidizer hauv steelmakingKev lag luam vim nws cov ntsiab lus silicon cov ntsiab lus silicon, lub siab deoxidation efficiency, nqi- ua tau zoo, thiab zoo sib xws. Mastering nws deoxidation mechanism, cov txheej txheem thov, thiab yuav cov qauv yog qhov tseem ceeb rau cov khoom lag luam zoo thiab txo cov nqi tsim khoom. Nyob rau hauv lub caij nyoog ntawm ntsuab steelmaking, ferro silicon 70 - {{5} Nws yuav txuas ntxiv mus rau txoj kev loj hlob tshiab rau kev lag luam steel.