Binary alloy igizwe na silicon na calcium ni mubyiciro bya ferroalloys.Ibigize byingenzi ni silikoni na calcium, kandi irimo umwanda nka fer, aluminium, karubone, sulfure na fosifore muburyo butandukanye.Mu nganda zicyuma nicyuma, ikoreshwa nkinyongera ya calcium, deoxidizer, desulfurizer na denaturant kubintu bitarimo ibyuma.Ikoreshwa nka inoculant na denaturant munganda zicyuma.
Ikoreshwa:
Nka deoxidizer ikomatanya (deoxidisation, desulphurisation na degassing) Ikoreshwa mugukora ibyuma, gushonga.Nka inoculant, ikoreshwa no mukubyara umusaruro.
Imiterere ifatika:
Igice cya ca-si ni ibara ryerurutse ryagaragaye rifite ingano igaragara.Ibibyimba, ibinyampeke nifu.
Ipaki:
isosiyete yacu irashobora gutanga imiterere itandukanye yerekana ingano ukurikije ibyo umukoresha abisaba, bipakiye imyenda ya pulasitike hamwe n umufuka wa toni.
Ibikoresho bya shimi:
| Icyiciro | Ibikoresho bya shimi% | |||||
| Ca | Si | C | AI | P | S | |
| ≥ | ≤ | |||||
| Ca31Si60 | 31 | 58-65 | 0.8 | 2.4 | 0.04 | 0.06 |
| Ca28Si60 | 28 | 55-58 | 0.8 | 2.4 | 0.04 | 0.06 |
| Ca24Si60 | 24 | 50-55 | 0.8 | 2.4 | 0.04 | 0.04 |
Ibindi byanduye bisobanurwa ukurikije intego zitandukanye.Mubyongeyeho, hashingiwe kuri silicon-calcium ivanze, ibindi bintu byongeweho kugirango bibe ternary cyangwa ibintu byinshi bigize ibivange.Nka Si-Ca-Al;Si-Ca-Mn;Si-Ca-Ba, nibindi, bikoreshwa nka deoxidizer, desulfurizer, agent denitrification hamwe na alloying agent mubyuma nicyuma.
Kubera ko calcium ifitanye isano ikomeye na ogisijeni, sulfure, hydrogène, azote na karubone mu byuma byashongeshejwe, amavuta ya silicon-calcium akoreshwa cyane cyane mu kwangiza, gutesha agaciro no gutunganya sulfuru mu byuma bishongeshejwe.Kalisiyumu silicon itanga ingaruka zikomeye iyo yongewe kumashanyarazi.Kalisiyumu ihinduka imyuka ya calcium mu byuma bishongeshejwe, bigira ingaruka zikomeye ku byuma bishongeshejwe kandi bigira umumaro wo kureremba bitarimo ubutare.Nyuma ya silicon-calcium ivanze ya deoxidiside, ibyongeweho bitari ibyuma hamwe nibice binini kandi byoroshye kureremba birakorwa, kandi imiterere nimiterere yibintu bitari ibyuma nabyo birahinduka.Kubwibyo, silikoni-calcium ikoreshwa mu gukora ibyuma bisukuye, ibyuma byujuje ubuziranenge bifite ogisijeni nkeya na sulfure, hamwe n’ibyuma bidasanzwe bikora ogisijeni nkeya na sulferi.Kwiyongera kwa silicon-calcium alloy irashobora gukuraho nodulation yicyuma hamwe na aluminium nka deoxidizer ya nyuma kuri ladle nozzle, no gufunga nozzle ya tundish yo gukomeza guterana |gukora ibyuma.Mu buhanga bwo gutunganya hanze y’itanura ryibyuma, ifu ya silicon-calcium cyangwa insinga yibanze ikoreshwa mugutwara deoxidisation na desulfurizasi kugirango igabanye ibirimo ogisijeni na sulferi mubyuma kugeza kurwego rwo hasi cyane;irashobora kandi kugenzura imiterere ya sulfide mubyuma no kunoza ikoreshwa rya calcium.Mu gukora ibyuma bikozwe mu cyuma, usibye deoxidisation no kwezwa, silicon-calcium ivanze nayo igira uruhare mu gukingira, ifasha gukora grafite nziza cyangwa ifatika;ituma igishushanyo kibisi cyicyuma kigabanijwe neza, kigabanya imyuka yera;kandi irashobora kongera silicon na desulfurize, Kunoza ubwiza bwicyuma.
Igihe cyo kohereza: Apr-11-2023
