7、essofsmelting.WestudiedthetechnicalprocessofNi,CralloysteelinChongqingJinkaispecialsteelCompany,analyzedthecontentofliquid-steeloxygen,nitrogenineachproductionprocess,throughthepractice intheproductionsite, and samplingthe productionprocess eachstep, thenanalyzed using oxygennitrogen