Lub caij nplooj ntoos hlav steel, raws li "cov khoom siv tseem ceeb rau kev ua haujlwm elastic," muaj cov kev xav tau siab heev rau lub zog, toughness, elastic txwv, thiab qaug zog lub neej.Ferrosilicon(Mainstream FeSi72/75) yog ib qho tseem ceeb alloying thiab deoxidizing tus neeg sawv cev nyob rau hauv nws cov ntau lawm - nws txhim khu cov elastic txwv los ntawm cov khoom siv ntxiv zog, refines nplej kom toughness, thiab precisely deoxidizes thiab purifies cov hlau molten. Tus nqi thiab purity tswj ntawm ferrosilicon ncaj qha txiav txim siab qhov kev ntseeg siab ntawm lub caij nplooj ntoos hlav steel.
Ferrosilicon xaiv cov kev cai:
Cov qib tseem ceeb:FeSi 75(Si 72% -78%),FeSi72(Si 72% -75%). Cov ntsiab lus silicon siab tuaj yeem txo cov nyiaj ntxiv thiab txo qis impurity qhia.
Kev tswj hwm impurity: Al Tsawg dua lossis sib npaug li 1.0% (tsis txhob tawv thiab nkig Al₂O₃ suav nrog), S Tsawg dua lossis sib npaug rau 0.05%, P Tsawg dua lossis sib npaug li 0.04% (tiv thaiv embrittlement). High-kawg caij nplooj ntoos hlav steels (xws li 60Si2CrA) xav tauqis-aluminium ferrosilicon(Al Tsawg dua lossis sib npaug li 0.8%).
Cov hauv qab no yog lub luag haujlwm tseem ceeb thiab kev taw qhia ntawm ferrosilicon hauv caij nplooj ntoos hlav steel
1, Txhim khu elasticity thiab resilience:
Cov khoom siv silicon hauv ferrosilicon tuaj yeem tsim silicides nrog hlau thiab carbon hauv hlau. Cov silicides no tuaj yeem ua kom cov qauv elastic ntawm cov hlau, yog li ua kom cov elasticity thiab resilience ntawm lub caij nplooj ntoos hlav steel. Qhov no yog ib qho tseem ceeb heev rau lub caij nplooj ntoos hlav kom sai sai rov qab mus rau nws qhov qub zoo tom qab raug kev ntxhov siab thiab tswj kom ruaj khov thiab ua haujlwm zoo.
2, Txhim kho qaug zog tiv thaiv:
Cov khoom siv silicon hauv ferrosilicon tuaj yeem tsim cov silicide precipitates hauv cov hlau, uas tuaj yeem cuam tshuam kev txav ntawm kev txav, yog li txhim kho qhov qaug zog ntawm lub caij nplooj ntoos hlav steel. Lub caij nplooj ntoos hlav tuaj yeem tswj tau qhov kev ua haujlwm ruaj khov nyob rau hauv ntev - lub sij hawm rov qab thauj khoom thiab ncua nws lub neej kev pab cuam.
3, Txhim kho lub zog thiab hardness:
Qhov tsim nyog tus nqi ntawm ferrosilicon ntxiv tuaj yeem ua rau lub zog thiab hardness ntawm lub caij nplooj ntoos hlav steel, ua kom nws tiv taus kev ntxhov siab ntau dua thiab kev thauj khoom thaum tuav lub cev ruaj khov thiab ua haujlwm. Qhov no yog qhov tshwj xeeb tshaj yog rau cov ntawv thov caij nplooj ntoos hlav uas xav tau lub zog siab thiab ua haujlwm ntev.
4, Txhim kho corrosion kuj:
Cov khoom siv silicon hauv ferrosilicon pab tsim cov yeeb yaj kiab oxide ntawm cov hlau, txhim kho corrosion kuj ntawm steel, thiab txuas ntxiv lub neej kev pab cuam ntawm springs. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov springs uas raug cov av noo los yog corrosive ib puag ncig ntev.
5, Kho cov qauv ntawm cov hlau:
Ferrosilicon alloy tseem tuaj yeem kho cov qauv ntawm cov hlau ua kom nws zoo ib yam thiab zoo, txhim kho cov khoom sib xws thiab kev ruaj ntseg ntawm cov khoom, thiab pab txhawb kev tsim khoom thiab siv cov springs.
Nyob rau hauv luv luv, FeSi alloy, raws li ib tug alloying additive nyob rau hauv lub caij nplooj ntoos hlav steel, txhim kho elasticity, qaug zog tsis kam thiab corrosion kuj ntawm hlau los ntawm kev nce cov ntsiab lus ntawm silicon, ua rau cov springs ua tau zoo nyob rau hauv ntau yam kev lag luam thiab txhua yam kev siv thaum ncua lawv cov kev pab cuam lub neej thiab stability.
