Ithini i-oksijini yensimbi encibilikisiwe ngesithando somlilo esincibilika?

Okuqukethwe komoyampilo ensimbini encibilikisiwe encibilikisiwe ku-cupola ngokuvamile kungu-0.004~0.006% (ingxenyana yobuningi, okufanayo kusebenza kulokhu okulandelayo), kanye nokuqukethwe komoya-mpilo ensimbi encibilikisiwe encibilikisiwe. ukuchithwa kwesithando somlilo ngokuvamile cishe u-0.002%, ngezinye izikhathi ngisho naphansi. Ngokuvamile, okuqukethwe komoyampilo okuphansi kwensimbi encibilikisiwe kusiza ukuthuthukisa ikhwalithi ye-metallurgical yokusakazwa. Kodwa-ke, uma okuqukethwe kwe-oxygen kunsimbi encibilikisiwe kuphansi kakhulu (0.001% noma ngaphansi), akusizi ukwakheka kwe-crystal nuclei ngesikhathi sokujova , Okuholela ekukhiqizeni i-graphite epholile kakhulu (Uhlobo D), ngisho noma inani le-inoculant wanezela wanda, umphumela inoculation awumuhle.