The submerged entry nozzles(SEN)for the steelmaking and CCM system need to be preheated before being put into use.Currently,due to environmental concerns,steel enterprises have shifted from gas preheating to electric preheating.The SENs preheated in an electrical oven is prone to cracking due to uneven heating.In order to tackle the problem,a new type of electric oven with SEN suspended and resisted to oxidation has been developed.Such an oven can preheat the SENs uniformly and is fueled with nitrogen,which can prevent oxidation of the SENs.
Submerged entry nozzleElectric preheatingAnti-oxidation study
万方数据
维普
