Calcium silicon alloys, FERRO Silicon, thiabSilicon Barium alloysyog peb feem ntau siv inoculants hauv cam khwb cia hlau ntau lawm. Lawv lub luag haujlwm tseem ceeb yog txhawm rau txhim kho cov morphology ntawm graphite thiab ua kom muaj cov hlau loj los ntawm cov hlau me me thiab muaj zog thiab cov txheej txheem ntawm cov hlau cam khwb cia.
Kev sib piv ntawm cov tub ntxhais tseem ceeb thiab Inoculation
Kev ua yeeb yam ntawm ib qho inoculant yog qhov tseem ceeb txiav txim siab los ntawm nws cov ntsiab lus tseem ceeb. Cov txheej txheem ntawm kev ua ntawm cov khoom sib txawv ncaj qha cuam tshuam rau cov nyhuv inoculation. Qhov sib txawv hauv cov khoom tseem ceeb thiab kev siv tshuab ntawm peb lub inoculants yog qhia nyob rau hauv cov lus hauv qab no:
| Inoculant hom | Cov khoom xyaw tseem ceeb | Tseem Ceeb Inoculant Ntsiab | Tub Ntxhais Inoculant Mechanism |
| Ferro Silicon Alloy | FE (MATRIX), SI (70% -85%), Tsawg Tsawg Me |
Si |
1. Txhawb nqa SI hauv cov hlau molten txo cov pa roj carbon sib npaug thiab inhibits qhov tsim ntawm cov hlau cam khwb dawb (xis mas). 2. SI txhawb nqa graphite nucleation thiab refines graphite hais (piv txwv li, flake graphite ua finer thiab ntau dua faib tawm). |
| Calcium silicon alloy | Si (50% -65%), CA (20% -35%), FE (tshuav nyiaj) |
Si + CA |
1. Si ua si lub luag haujlwm tseem ceeb hauv inoculating thiab inhibiting dawb cam khwb cia hlau. 2. 3. Cao thiab CAS, tsim los ntawm cov tshuaj tiv thaiv ntawm CA nrog O thiab S, ua tiav cov kab ke nucleations thiab ua tiav zoo dua li ferrosilicon. |
| Barium silicon alloy | Si (50% -70%), BA (10% -25%), FE (tshuav nyiaj) |
Si + BA |
1. SI SI muab lub hauv paus rau cov duab. 2. Ba tus deoxidizing kev muaj peev xwm me ntsis tsis muaj zog dua CA, tab sis nws muaj peev xwm hloov pauv ntawm cov flocs (hauv cov yas ntoo thiab malleable cam khwb cia hlau). 3. BA txo cov viscos viscosity, txhim kho graphite faib cov kev faib tawm, thiab txo cov tsis xws luag xws li shrinkage kab noj hniav thiab porosity nyob rau hauv castings. |
Kev sib piv ntawm cov kev ua tau zoo thiab cov xwm txheej thov
Cov kev ua yeeb yam sib txawv ntawm cov inoculants sib txawv txiav txim siab lawv cov hlau nplaum pov tseg (xws li cov hlau loj, nqus av, thiab tuab-}} av thaj). Ib qho kev sib piv tshwj xeeb yog raws li hauv qab no:
| Kev sib piv qhov ntev |
Ferro Silicon Alloy
|
Calcium silicon alloy
|
Barium silicon alloy
|
| Daim duab |
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| Inoculation pib lub zog | Tsis muaj zog - nruab nrab (yooj yim inoculation, ruaj khov tab sis cov nyhuv me) | Muaj zog (muaj inoculation, tseem ceeb ua kom zoo, thiab dawb cam khwb cia hlau loj roj) | Nruab nrab - muaj zog (cov duab graphitization zoo, thaum tseem ua tiav graining nplej) |
| Graphite morphology txhim kho | Feem ntau yog rov qab ree graphite, nrog tsawg morphology hloov kho | Graphite (Flakes / Flocculations), txo "coarse graphite" | Loj hlob heev graphite morphology, txhawb nqa kev tsim cov flocculent / spheroid graphite (tshwj xeeb yog haum rau cov hlau cooj) |
| Dawb Casting Kev Txhawb Nqa | Nruab nrab (cia siab rau ntawm si, nquag mus dawb cam khwb cia hlau ntawm nyias {{} {walled ntu) | Muaj zog (CA tshem tawm cov kev tsis tsim txiaj, txo txoj kev pheej hmoo ntawm cov hlau pov dawb hauv cov khoom nyias nyias (} {walled ntu) | Kuj muaj zog (ba pab cov duab, suprpressing dawb cam khwb cia hlau zoo dua ferrosilicon) |
| Casting Hom Sib Xws | 1. Orternity Grey nrum hlau (xws li siv lub tshuab cuab yeej thiab kav dej); 2. Tuab - walled castings nrog cov kev ua tau zoo |
1. High {{{{{}} Lub zog Grey cam khwb cia hlau (xws li cov cav hauv lub cav); 2. Nyias- walled grey cam khwb cia hlau (xws li tsheb lub tog raj kheej kheej); 3. Khaws Cia Nrum Hlau (Xav Tau Cov Xaws Cov Khaub Ncaws) |
1. Pob zeb hlau (xws li automotive crankshafts thiab lub log); 2. High {- Lub zog Mallable cam khwb cia hlau; 3. Cov castingings xav tau high graphite morphology |
| Puas Tswjhwm | General (xav kom shrinkage vim coarse graphite) | Zoo (Graphite Refinement txo cov shrinkage, Ca txhim kho cov kab ua kua av ntawm av) | Zoo heev (ba txo cov hlau viscosity, txo kom nws cov kab tsuag thiab cov nplais me, ua rau nws haum rau cov txheej txheem nyuaj) |
Xaiv Kev Pom Zoo Cov Lus Taw Qhia
Raws li cov kev sib piv saum toj no, hauv kev tsim tiag, cov hauv paus ntsiab lus hauv qab no yuav tsum tau ua raws thaum xaiv cov inoculant:
Cov xwm txheej uas muaj ferrosilicon (FESI) yog nyiam:
Zus Tau Tej Cov Grey Txawv Cam Khwb Cia Hlau (xws li tsawg {{
Castings nrog cov qauv yooj yim, cov phab ntsa tsis sib xws, thiab tsis muaj qhov cub me me {-}} walled thaj chaw tau txais dawb nrum;
Tshawb nrhiav tus nqi qis thiab cov txheej txheem ruaj khov tsis muaj kev tswj hwm inoculation.
Cov xwm txheej uas calcium silicon alloys yog nyiam:
Zus tau cov siab - Lub zog Grey cam khwb cia hlau (xws li lub cav thaiv thiab siab} lub zog txhim kho lub zog;
Cov duab ua ke nrog nyias -} cov cheeb tsam phab ntsa (xws li cov tog raj kheej tsis muaj zog;
Cov xim A thiab cov ntsiab lus nyob rau hauv Molten Hlau Yuav Tsum Ua tib lub sijhawm ua kom sib txawv thiab desulfurization los txhim kho kev ua haujlwm inoculation inoculation.
Silicon Barium ancoy (Fesiba alloy) yog nyiam hauv cov xwm txheej hauv qab no:
Kev tsim khoom hlau lossis cov hlau pov tseg hlau yuav tsum tau tswj cov graphite morphaology (frocculation / spherityity);
Castings nrog cov txheej txheem nyuaj (xws li crankshafts thiab gearboxes) yog muaj kev txiav tsis taus kab noj hniav thiab hlais hlais;
Siab - tus nqi {{1} ntxiv cov khoom sib pauv uas yuav tsum tau them tus nqi ntau dua hauv lub zog ntawm ntau dua lossis sib npaug nrog 600 MPA).
