Na-asachapụ igwe a wụrụ awụ na-eme ka ọla na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eweta silicon Calcium Alloy Calcium Silicon Alloy

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.Na ndabere nke silicon-calcium alloy, a na-agbakwunye ihe ndị ọzọ na-eme ka ternary ma ọ bụ multi-element composite alloy.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.

Calcium bụ ala alkaline metal metal nwere atomiki arọ nke 40.08, ihe mpụta eletrọnịkị ihe owuwu nke 4S2, a njupụta (20°C) nke 1.55g/cm3, ebe agbaze nke 839±2°C, na ebe esi 1484°C. C.Mmekọrịta dị n'etiti uzuoku ike nke calcium na okpomọkụ bụ

lnpCa=25.7691-20283.9T-1-1.0216lnT

Ebe pCa bụ ike ikuku nke calcium, Pa;T bụ okpomọkụ, K. Silicon na calcium na-emepụta ogige atọ, ya bụ CaSi, Ca2Si na CaSi2.CaSi (41.2% Si) kwụsiri ike na oke okpomọkụ.Ca2Si (29.5% Si) bụ ngwakọta peritectic nke emere n'etiti Ca na CaSi na okpomọkụ n'okpuru 910°C.CaSi2 (58.36% Si) bụ ngwakọta peritectic nke emere n'etiti CaSi na Si na okpomọkụ n'okpuru 1020°C.Ngwakọta usoro nke silicon-calcium alloys nke ụlọ ọrụ mepụtara bụ ihe dịka 77% CaSi2, 5% ruo 15% CaSi, Si <20% na SiC <8%.Njupụta nke silicon-calcium alloy nwere 30% ruo 33% nke Ca na ihe dị ka 5% nke Fe bụ ihe dịka 2.2g/cm3, na okpomọkụ na-agbaze sitere na 980 ruo 1200 Celsius.