Abstract:

This paper analyzed the cause of viscous slag formation of walking beam and column in hot rolling furnace，which mainly results form the low refractoriness under load（RUL）and large deformation. Based on analysis of erosion structure，the dissolution of alumina into bonding slag phases of furnace lining increases the slag viscidity，which may give rise to seriously hang slag and hinder normal production. Among refractory control standards，RUL and other parameters to control the quality of furnace lining are not stipulated.