Hauv kev tsim cov hlau thiab hlau, qhov zoo tshaj ntawm steel deoxidizing txheej txheem ncaj qha txiav txim siab purity thiab kev ua tau zoo ntawm cov hlau. Kev lig kev cai ib leeg deoxidizer yog maj mam ua kom tau raws li qhov kev thov siab ntawm - kawg steel ntau lawm vim muaj kev txwv kev ua haujlwm, thiab calcium -silicon aluminium composite deoxidizer tau dhau los ua qhov tseem ceeb ntawm kev tsim kho tshiab hauv kev lag luam metallurgical los ntawm kev tsim txiaj ntawm kev sib koom ua ke ntawm ntau lub ntsiab lus.
Tsab ntawv xov xwm no yuav qhia meej txog qhov tseem ceeb ntawm cov khoom siv hlau metallurgical los ntawm qhov ntev ntawm cov khoom tivthaiv, qhov zoo ntawm daim ntawv thov thiab kev xyaum ua haujlwm.
Dab tsi yog Silicon aluminium calcium composite deoxidizer?
omposition
Silicon aluminium calcium composite deoxidizer yog ib yam ntawm ntau yam -cov khoom siv hlau tsim los rau cov txheej txheem steel, nws cov ntsiab lus tseem ceeb yog silicon (55% -65%), aluminium (20% -30%) thiab calcium (5% -10%), los ntawm quartz, alumina, limestone thiab carbonaceous reductant nyob rau hauv lub qhov kub thiab txias.
Cov khoom no muaj ob lub ntsiab lus tseem ceeb.Low melting point thiab ceev melting: Piv nrog ib tug deoxidizer, nws melting point yog qis dua thiab nws yuav yaj sai sai nyob rau hauv cov hlau molten, tsim ib tug muaj zog txo cua thiab zoo inhibiting oxidation ntawm hlau ntsiab.
Cov ntawv
Ntau cov ntaub ntawv alloy: cov khoom muaj nyob rau hauv daim ntawv ntawm granules, lumps los yog nyob ntawm tej, uas yog ib qho yooj yim kom tau raug dosed raws li cov khoom smelting (xws li, hluav taws xob rauv, converter, intermediate zaus furnace).
Silicon aluminium calcium composite deoxidizer yog tsim rau kev tsim khoom ntawm ntau qib steel, xws li HRB235, HRB335, thiab HRB400.
Qhov zoo ntawm Silicon aluminium calcium composite deoxidizer
Performance Advantage
Silicon aluminium calcium composite deoxidizer rhuav tshem cov kev txwv kev ua haujlwm ntawm ib qho deoxidizer thiab paub txog kev ua haujlwm ntawm deoxidation, desulfurization, phosphorus thiab grain refinement. Piv txwv li, calcium reacts nrog sulfur los tsim calcium sulfide (CaS), uas tuaj yeem txo cov sulfur cov ntsiab lus ntawm cov hlau kom tsawg dua 0.01%, daws qhov tsis zoo ntawm cov sulfur ntawm cov hlau ua haujlwm kub.
Rau cov hlau tsis muaj steel, cov pa roj carbon tsawg thiab lwm cov qib steel nrog cov kev xav tau purity siab heev, nws cov kev ua kom huv huv yog qhov zoo dua li cov khoom siv xws li txhuas hlau thiab calcium silicate, uas txhim kho cov txiaj ntsig zoo.
Economic kom zoo dua
Los ntawm qhov pom ntawm tus nqi tsim khoom, kev ua haujlwm siab ntawm calcium silica- txhuas tuaj yeem ua kom luv luv lub voj voog smelting - cov yam ntxwv ntawm cov slag sai txo cov sij hawm nyob ntawm cov kua hlau hauv qhov cub, thiab txo cov hluav taws xob siv li ntawm 10% -15%; Nyob rau tib lub sijhawm, ib qho tshuaj ntxiv hloov ntau yam deoxidizers, uas txo cov nqi ntawm cov khoom siv raw khoom thiab kev siv tshuaj.
Environmental Advantages
Lub siab impurity slag tsim los ntawm cov txheej txheem deoxidation ib txwm yuav tsum tau kho tshwj xeeb, thaum calcium silicate aluminium tuaj yeem txo cov khoom pov tseg ntau dua 30% los ntawm kev deoxidation thiab desulfurization.
Tsis tas li ntawd, nws qhov kev siv hluav taws xob tsawg yog qhov sib xws nrog cov qauv qis -carbon steelmaking, uas pab cov tuam txhab steel kom txo cov pa roj carbon emissions thiab yog nyob rau hauv txoj kab nrog rau kev loj hlob ntawm lub ntiaj teb no ntsuab manufacturing.
Dab tsi yog siv Silicon aluminium calcium composite deoxidizer?
Ua tau zoo Deoxidation hauv Steelmaking txheej txheem
Calcium-silicon aluminium composite deoxidizer yog ib qho khoom siv tseem ceeb hauv cov txheej txheem steelmaking, tshwj xeeb tshaj yog haum rau ntau hom steelmaking xws li converter steelmaking. Nws lub luag haujlwm tseem ceeb yog tshem tawm cov pa oxygen hauv cov dej steel thiab txo cov cim oxidized (xws li SiO₂, Al₂O₃, CaO), txhawm rau txhim kho cov purity thiab zoo ntawm cov hlau.
Piv nrog rau ib qho -element deoxidizers (piv txwv li, silicon ntshiab thiab txhuas), calcium -silicon aluminium composite deoxidizers muaj zog deoxidation muaj peev xwm thiab ceev cov tshuaj tiv thaiv sai, uas tuaj yeem ua ke nrog oxygen hauv cov dej steel kom tsim cov slags qis. Cov slags no yooj yim rau ntab thiab tshem tawm, txo qhov kev pheej hmoo ntawm cov khoom seem hauv cov hlau, thiab tshwj xeeb tshaj yog tsim nyog rau kev tsim cov hlau zoo xws li cov raj xa dej, cov kabmob steel thiab cov hlau hluav taws xob.
Hloov kho thiab optimization ntawm steel inclusions
Ntxiv nrog rau deoxidizing, cov khoom sib xyaw deoxidizer tuaj yeem tswj cov muaj pes tsawg leeg, morphology thiab kev faib tawm ntawm cov khoom tsis yog -hlau inclusions hauv steel.
Kev txhim kho ntawm inclusions morphology: High melting point, angular oxides (xws li Al₂O₃) hloov mus rau hauv qis melting point, spherical calcium-aluminium-silicate inclusions. Qhov kev hloov kho no txhim kho cov kua dej ntawm cov hlau hauv cov txheej txheem casting, txo cov teeb meem ntawm cov dej qhov ncauj clogging nyob rau hauv cov txheej txheem nruam casting, thiab tib lub sij hawm txo cov kev pheej hmoo ntawm cov kab nrib pleb tshwm sim los ntawm inclusions nyob rau hauv cov hlau, thiab txhim kho nws mechanical zog thiab processability.
Daim ntawv thov Scenario: Hauv kev tsim cov qib siab -kawg steel rhiab heev rau kev suav nrog (xws li aerospace steel, precision machinery steel), calcium-silicon aluminium composite deoxidizer cov kev hloov pauv kev ua haujlwm tseem ceeb tshwj xeeb.
Precise tswj ntawm steel muaj pes tsawg leeg thiab alloying
Calcium silica-aluminium composite deoxidizer tuaj yeem muab ntxiv ua cov khoom sib xyaw rau cov hlau molten kom raug kho cov tshuaj muaj pes tsawg leeg ntawm cov hlau:
Elemental supplementation: Cov ntsiab lus tseem ceeb xws li silicon, aluminium thiab calcium yog nkag mus rau hauv cov hlau molten kom ua tau raws li cov kev xav tau ntawm cov qib steel sib txawv. Piv txwv li, silicon txhim kho lub zog ntawm cov qauv hlau, txhuas txhim kho oxidation tsis kam ntawm cov hlau, thiab calcium txhim kho kev txiav thiab kev ua haujlwm ntawm cov hlau.
Uniformity thiab stability: Vim nws cov uniformity thiab ruaj khov muaj pes tsawg leeg, nws muaj peev xwm paub uniform faib ntawm alloying ntsiab thaum lub sij hawm ntxiv txheej txheem, tsis txhob sib txawv nyob rau hauv steel zog los ntawm fluctuations nyob rau hauv muaj pes tsawg leeg, thiab yog tshwj xeeb tshaj yog haum rau zus tau tej cov qib tshwj xeeb steel (xws li stainless hlau thiab tsis tshua muaj alloy steel) nrog siab yuav tsum tau rau compositional raug.
Txhim khu kev ua tau zoo hauv cov txheej txheem casting
Hauv kev lag luam casting, calcium -silicon aluminium composite deoxidizer kuj tseem muaj nqis heev:
Kev ua kom zoo tshaj plaws ntawm kev ua haujlwm zoo: tshem tawm cov pa oxygen hauv cov dej hlau zoo, txo qhov tsis xws luag xws li porosity thiab slag entrapment, txhim kho casting ntom thiab nto zoo, thiab txo cov seem seem.
Txheej txheem adaptability: muaj feem xyuam rau cov xuab zeb casting, hlau casting thiab lwm yam txheej txheem, tshwj xeeb tshaj yog nyob rau hauv zus tau tej cov hlau loj castings los yog complex qauv castings, yuav ho txhim kho qhov zoo ntawm casting thiab ntau lawm efficiency.
Muab ob npaug rau kev txhim kho ib puag ncig thiab cov txiaj ntsig kev lag luam
Silicon aluminium calcium composite deoxidizer daim ntawv thov kuj coj ib puag ncig thiab nqi zoo:
Cov txiaj ntsig kev tiv thaiv ib puag ncig: hloov cov tsoos siab impurity ferroalloy deoxidizer, txo cov slag tsim nyob rau hauv cov txheej txheem smelting, txo qhov cuam tshuam ntawm cov khoom pov tseg ntawm ib puag ncig, nyob rau hauv txoj kab nrog txoj kev loj hlob ntawm ntsuab metallurgy.
Kev ua haujlwm siab thiab kev txuag hluav taws xob: muaj zog deoxidizing kev ua haujlwm txo qis kev noj ib zaug -deoxidizer, ua kom lub sijhawm nyob ntawm cov hlau molten hauv lub cub tawg, txhim kho kev tsim khoom thiab txo kev siv zog.
Txheej Txheem Simplification: Kev sib xyaw deoxidation, desulfurization thiab alloying zog, nws txo cov kev siv ntau yam additives, ua kom yooj yim rau cov txheej txheem ntws, thiab txo tus nqi ntawm cov khoom siv raw thiab kev ua haujlwm.
Xaus
Silicon aluminium calcium composite deoxidizer tsis yog tsuas yog cov khoom siv hauv cov txheej txheem steelmaking, tab sis kuj yog ib qho tseem ceeb ntawm niaj hnub metallurgical technology upgrading. Nws multi-cov ntsiab lus sib koom ua ke, muaj peev xwm ua kom huv huv thiab cov yam ntxwv ntawm kev lag luam ntsuab tau txhawb nqa cov hlau ntau lawm rau "purer, zoo dua thiab ruaj khov dua" cov kev taw qhia.
