Kuchenesa Simbi Yakanyungudutswa Simbi Kugadzira Metallurgy Alloying Additive Alloy Supplier Silicon Calcium Alloy Calcium Silicon Alloy

Binary alloy inoumbwa nesilicon uye calcium ndeyechikamu cheferroalloys.Zvikamu zvaro zvikuru isilicon uye calcium, uye inewo tsvina yakaita sesimbi, aruminiyamu, kabhoni, sarufa uye phosphorus muhuwandu hwakasiyana.Muindasitiri yesimbi uye simbi, inoshandiswa se calcium additive, deoxidizer, desulfurizer uye denaturant kune isiri-metallic inclusions.Inoshandiswa seinoculant uye denaturant muindasitiri yesimbi yakakandwa.Pahwaro hwesilicon-calcium alloy, zvimwe zvinhu zvinowedzerwa kuti zvigadzire ternary kana multi-element composite alloy.Zvakadai seSi-Ca-Al;Si-Ca-Mn;Si-Ca-Ba, nezvimwewo, inoshandiswa se deoxidizer, desulfurizer, denitrification agent uye alloying agent musimbi nesimbi metallurgy.

Calcium isimbi yepasi ine alkaline ine huremu hweatomu hwe40.08, chimiro chekunze chemagetsi che4S2, density (20°C) ye1.55g/cm3, kunyunguduka kunoita 839±2°C, uye panovira inosvika 1484°. C.Hukama huri pakati pehutsi hwekumanikidzwa kwecalcium uye tembiricha ndeye

lnpCa=25.7691-20283.9T-1-1.0216lnT

Iko pCa ndiyo mhute yekumanikidza ye calcium, Pa;T ndiyo tembiricha, K. Silicon uye calcium zvinoumba makemikari matatu, anoti CaSi, Ca2Si uye CaSi2.CaSi (41.2% Si) yakagadzikana pakupisa kwakanyanya.Ca2Si (29.5% Si) musanganiswa weperitectic wakaumbwa pakati peCa neCaSi patembiricha iri pasi pe910°C.CaSi2 (58.36% Si) musanganiswa weperitectic wakaumbwa pakati peCaSi neSi patembiricha iri pasi pe1020°C.The phase kuumbwa kwemaindasitiri akagadzirwa silicon-calcium alloys anenge 77% CaSi2, 5% kusvika 15% CaSi, yemahara Si <20%, uye SiC <8%.Kuwanda kwesilicon-calcium alloy ine 30% kusvika 33% yeCa uye inenge 5% yeFe inenge 2.2g/cm3, uye tembiricha yekunyunguduka inotangira pa980 kusvika 1200°C.