Ngwakọta ọnụọgụ abụọ nke silicon na calcium mejupụtara bụ nke ụdị ferroalloys.Ihe ndị dị na ya bụ silicon na calcium, ọ nwekwara ihe ndị na-adịghị ọcha dị ka ígwè, aluminum, carbon, sọlfọ na phosphorus dị iche iche.N'ime ụlọ ọrụ ígwè na ígwè, a na-eji ya dị ka ihe mgbakwunye calcium, deoxidizer, desulfurizer na denaturant maka ntinye ndị na-abụghị ọla.A na-eji ya dị ka inoculant na denaturant na ụlọ ọrụ nkedo ígwè.
Ojiji:
Dị ka compound deoxidizer (deoxidization, desulphurization na degassing) A na-eji ígwè eme ihe, na-agbaze alloy.Dị ka inoculant, a na-ejikwa na mmepụta nkedo.
Ọnọdụ anụ ahụ:
Akụkụ ca-si bụ isi awọ dị mfe nke pụtara na ọdịdị ọka doro anya.Akpụkpọ anụ, ọka na ntụ ntụ.
ngwugwu:
ụlọ ọrụ anyị nwere ike ịnye ụdị ọka dị iche iche akọwapụtara dị ka onye ọrụ chọrọ, nke ejiri akwa rọba na akpa ton jupụta.
Ihe kemịkalụ:
| Ọkwa | Ngwakọta kemịkalụ% | |||||
| 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 |
A na-akọwapụta adịghị ọcha ndị ọzọ dịka ebumnuche dị iche iche si dị.Tụkwasị na nke ahụ, na ndabere nke silicon-calcium alloys, a na-agbakwunye ihe ndị ọzọ na-emepụta ternary ma ọ bụ multi-element composite alloys.Dị ka Si-Ca-Al;Si-Ca-Mn;Si-Ca-Ba, wdg, ejiri mee ihe dị ka deoxidizer, desulfurizer, denitrification agent na alloying agent na ígwè na ígwè metallurgy.
Ebe ọ bụ na calcium nwere njikọ siri ike na oxygen, sọlfọ, hydrogen, nitrogen na carbon na nchara a wụrụ awụ, silicon-calcium alloys na-ejikarị eme ihe maka deoxidation, degassing na fixation nke sọlfọ na nchara a wụrụ awụ.Calcium silicon na-emepụta mmetụta exothermic siri ike mgbe agbakwunyere na nchara a wụrụ awụ.Calcium na-atụgharị ghọọ uzuoku calcium na nchara a wụrụ awụ, nke nwere mmetụta na-akpali akpali na nchara a wụrụ awụ ma na-aba uru na-ese n'elu mmiri nke na-abụghị ọla.Mgbe silicon-calcium alloy na-deoxidized, na-abụghị metal inclusions na ibu irighiri na mfe sere n'elu, a na-agbanwekwa udi na Njirimara nke na-abụghị metal inclusions.Ya mere, a na-eji silicon-calcium alloy na-emepụta ígwè dị ọcha, ígwè dị elu nke nwere obere ikuku oxygen na sọlfọ, na ígwè ọrụ pụrụ iche nke nwere oke ikuku oxygen na sọlfọ dị ala.Mgbakwunye nke silicon-calcium alloy nwere ike iwepụ nodulation nke ígwè na aluminum dị ka deoxidizer ikpeazụ na ladle nozzle, na clogging nke nozzle nke tundish nke na-aga n'ihu nkedo |ime ígwè.Na nkà na ụzụ nnụcha n'èzí ọkụ nke ígwè, silicon-calcium ntụ ntụ ma ọ bụ isi waya na-eji maka deoxidation na desulfurization iji belata ọdịnaya nke oxygen na sọlfọ na ígwè na a nnọọ ala larịị;ọ nwekwara ike ijikwa ụdị nke sulfide na nchara ma melite ogo ojiji nke calcium.Na mmepụta nke ígwè nkedo, na mgbakwunye na deoxidation na ịdị ọcha, silicon-calcium alloy na-arụkwa ọrụ inoculating, nke na-enyere aka ịmepụta ihe dị mma ma ọ bụ graphite;na-eme ka graphite na nkedo isi awọ na-ekesa nke ọma, na-ebelata ịdị ọcha;ma nwee ike ịbawanye silicon na desulfurize , Meziwanye nkedo ígwè.
Oge nzipu: Eprel 11-2023
