Ferro Silicon Chromeyog ferrroalloy feem ntau muaj ntawm silicon (15-50%), chromium (20-40%), thiab hlau (FE, qhov sib npaug). Nws kuj tseem tuaj yeem muaj cov nqi me me xws li carbon (c), leej faj (p), uas yuav tsum ua tib zoo tswj kom tsis txhob muaj kev puas tsuaj rau cov khoom kawg.
Cov ntawv thov tseem ceeb ntawm Sicr Alloy
FERRO Silicon Chromium tus nqi nyob hauv nws lub luag haujlwm dua li deoxidizer thiab chromium cov khoom siv hauv cov steel ntau thiab lwm cov txheej txheem metallurgical.
Steelmaking: Thawj cov ntaub ntawv thov
Tshaj 90% ntawm sicr yog siv hauv steel ntau lawm, hais ob txoj kev sib tw tseem ceeb:
Deoxidation:
Silicon muaj kev muaj zog muaj zog rau cov pa oxygen. Thaum ntxiv rau Molten Steel, nws kub siab nrog yaj oxygen kom muaj siio₂, uas ntab thiab raug tshem tawm raws li slag. Qhov no tiv thaiv kev tsim cov tsis xws luag (piv txwv li, pores thiab cov kab nrib pleb) hauv cov hlau tshwm sim los ntawm cov pa oxygen.
Chromium alloying:
Ntxiv Chromium rau cov hlau txhim kho corrosion tsis kam (piv txwv li, lub tshuab cua sov (piv txwv li cov hlau siab cav), thiab tawv tawv (piv txwv li cov cuab yeej nyuaj). Chromium Silicon alloys tau zoo tso cov chromium vim tias lawv cov hlau hauv paus ua kom pom kev sib xyaw nrog Molten hlau.
Stainless hlau ntau lawm
Stainless hlau yuav tsum muaj 10-30% chromium los tsim oxide txheej txheej (cr₂o₃) uas txwv tsis pub muaj xeb. Silicon chomium alloy yog qhov xav tau cov tshuaj chromium uas xav tau vim nws tsis zoo li lwm cov roj chromium ntau nrog ferrocrome). Cov pa roj carbon yuav txo cov txhad tsis kam ntawm cov hlau stainless los ntawm kev sau cov chromium carbides. Nws cov lus silicon cov ntsiab lus ntxiv txhim kho cov weldability ntawm stainless hlau (txo kev tawg thaum lub sij hawm vuam).
Casting thiab cam khwb cia hlau
Hauv kev nrum hlau ntau lawm, silicon chrome alloy ua raws li cov qauv nucleating: ua kom nws muaj zog thiab ntau dua hnav {}} tiv taus. Qhov no yog qhov tseem ceeb heev rau cov chaw xws li cov cav thaiv cov cav, cov kav dej, thiab cov khoom siv tshuab.
Lwm Cov Ntawv Thov
High - kub alloys:
Siv nyob rau hauv ib lub chaw tsim hluav taws xob (piv txwv li, turbine hniav) los txhim kho lub tshuab cua kub.
Hlau Txheej Txheem:
Hauv av rau hauv cov hmoov, nws yog ntxiv rau kev tiv thaiv tiv thaiv ntawm cov dej hlau (piv txwv li, nkoj lub nkoj tsis kam ua.
Vim li cas SI42CR30 feem ntau cov silicon - chromium stand qib?
Silicon chromium cov qib steel yog faib raws lawv cov lus silicon thiab chromium cov ntsiab lus (piv txwv li Si45cr28, SI42CR30). SI42CR30 (42% silicon, 30% chromium) tau dhau los ua kev lag luam txheem rau cov ntawv thov feem ntau.
Cov ntsiab lus silicon zoo tshaj (42%): Maximizes deoxidation thiab txo cov khoom tsis xws luag
Muaj Deoxidation muaj zog:
42% silicon muab cov kev txo qis txaus kom tshem tawm ntau dua 95% ntawm yaj oxygen los ntawm Molten hlau. Cov hlau nplaum nrog qis dua cov ntsiab lus silicon (piv txwv li, SI38cr32) yuav xav tau ntxiv rau cov txiaj ntsig zoo ib yam kom ua tiav tib lub dazoxidation nyhuv, nce nqi.
Zam dhau - deoxidation:
Cov hlau ua ke nrog cov ntsiab lus ntau silicon (piv txwv li, SI45cr28) khiav txoj kev pheej hmoo ntawm kev ua kom zoo nkauj (los ntawm kev sib sau ua ke (los ntawm kev sib xyaw ua ke (
Txhim kho cov hlau ntws:
42% silicon txo cov hlau lub viscosity, ua rau nws yooj yim dua rau ncuav rau hauv cov pwm (txo cov tsis zoo xws li shrinkage kab noj hniav).
Cov ntsiab lus zoo tagnrho cov ntsiab lus (30%): Ntsuas Ntsuas thiab Tus Nqi
Rooj sib ntsib Stainless Hlau xav tau:
Feem ntau cov hlau tsis muaj menyuam yaus (piv txwv li, 304 stainless hlau nrog 18% chromium cov ntsiab lus) yuav tsum tau tsuas yog ua kom nce siab hauv chromium cov ntsiab lus. SI42CR30's 30% chromium cov ntsiab lus txhais tau tias tsis muaj kev vam meej (piv rau hauv cov ntsiab lus chromium, kom ua tiav lub hom phiaj chromium, txuag sijhawm thiab ua haujlwm.
Zam Txim Tus Nqi Them:
Cov qib nrog ntau dua cov ntsiab lus chromium ntau dua (piv txwv li, SI40CR35) yog kim dua (chromite ore yog kim dua cov hlau txheem. SI42CR30 muab cov roj ntsha txaus kom tau raws li corrosion thiab lub zog yuav tsum tau yam tsis tas yuav muaj cov tswv yim ntxiv.
Ruaj khov alloy tus qauv:
42% silicon thiab 30% chromium form ib qho kev ruaj khov thiab sib xyaw ua ke nrog cov txheej txheem tsis sib xws (tsis muaj cov txheej txheem sib xyaw ua ke, uas tuaj yeem ua rau cov khoom faib tsis sib xws).
Cov ntsiab lus txawv txawv: Raws li txoj hlua khi hlau
Cov pa roj carbon tsawg:
Tiv thaiv kev tsim cov chromium carbides hauv cov hlau tsis muaj zog (chromium carbides tuaj yeem cuam tshuam corrosion tsis kam).
Tsawg sulfur / phosphorus:
Tiv thaiv emgrithlement (Sulfur tuaj yeem tsim cov hlau sulfride; phosphorus tuaj yeem cais ntawm cov ciaj ciam nplej).
Cov FAQ
Cov Lus Nquag Nug Txog Silicon Chromium thiab Si42CR30
Q1: yog SI42CR30 haum rau cov zaub mov {{}}} qib steel stainless hlau?
Yog lawm. SI42CR30 cov ntsiab lus carbon tsawg (tsawg dua los yog sib npaug rau kev siv nyob rau hauv 304/316 stainless hlau rau cookware rau cryware thiab cov khoom noj khoom haus.
Q2: Tau SI42CR30 yuav siv nyob rau hauv qis-} almoy cov hlau?
Tau kawg. Tsawg {-} ecoy alleoy alleoy alleoy allloy steels (1 {}}}}}}}}}}}}}}}}}
Q3: Yuav ua li cas yuav tsum si42cr30 yuav khaws cia thiab thauj?
Khaws rau hauv cov chaw tso khoom qhuav, kom tiv thaiv oxidation) thiab thauj hauv cov khoom (hauv cov block 10-50 mm hauv qhov loj me) los ntawm lub thawv lossis thawv. Zam kev cuam tshuam hnyav (sicr alloys muaj nkig, thiab ntau zog quab yuam tuaj yeem tsim hmoov av).
Q4: Dab tsi yog qhov sib txawv ntawm sicr alloys thiab ferrocrome?
Ferrocrome muaj cov ntsiab lus chromium siab (50-70%) tab sis qis dua silicon cov ntsiab lus (tsawg dua los yog sib npaug ntawm 2%), ua rau qhov khoom siv chromium. Sicr alloys muaj qhov sib piv ntawm CRSI alloy piv, ua rau lawv ob lub chromium (yam tsis muaj qhov xav tau ntawm deoxidization cais, raws li yuav tsum muaj nrogferrosilicon).
