
Refractory Slide Gate Plate for Sliding Mechanism Refractory Material. Refractory Slide Gate Plate for Sliding Mechanism Refractory Material is a key refractory system mounted at the bottom of ladles and tundishes to control molten steel flow. The opening, closing and precise regulation of steel flow are realized by the relative sliding of slide plates. Our zirconia nozzles feature regular shape, high concentricity, good thermal shock stability and outstanding scouring resistance, which fully satisfy the working requirements of billet continuous cast. To adapt to the advancement of continuous casting technology, we have developed and produced zirconia composite quick-change systems, which have achieved excellent practical application results. The slide gate nozzle controls the flow rate and on-off state of molten steel by driving the lower slide plate to move back and forth. The casting holes on the upper and lower plates are fully aligned, partially overlapped or completely separated to regulate the steel flow.