Kev siv Silicon hauv Silicon - calcium alloys:
Silicon - yog ib qho khoom qub nrog ntau yam ntawm cov siv, tab sis hauv calcium- silicon alloys peb tsuas yog siv nws ntau hauv kev lag luam steel. Cov silicon hauv calcium- Txhob ua kom zoo nkauj vim tias muaj cov pa roj ntsha uas muaj zog heev vim tias muaj cov pa roj ntsha thaum lub sijhawm smelting. Yog tias muaj cov pa oxygen ntau dhau, ntau cov oxides yog tsim, uas cuam tshuam rau qhov zoo ntawm cov hlau. Calcium - cua ci tuaj yeem tshem tawm cov oxygen sai sai, yog li nws tuaj yeem ntxuav cov hlau thiab txhim kho nws qhov zoo.
Siv cov calcium hauv calcium -} silicon alloys:
Calcium - yog ib qho tseem ceeb hauv steelmaking. Nws lub hom phiaj tseem ceeb- yog txhawm rau txhim kho cov dej ntawm Molten Steel thiab txiav cov khoom ntawm cov tiav steel. Kev siv calcium -} cov alloicon alloys tuaj yeem tiv thaiv kev thaiv ntawm tus kais dej thiab zoo dua huv si hlau los ntawm impurities. Kev tso dej txhim kho cov khoom ntawm cov tiav steel.