Zirconia Bore Inserts For Tundish Stationary Nozzle
Our company manufactures various zirconia sizing nozzles suitable for continuous casting of steel. These nozzles are available either individually or with co-molded high aluminum jackets. In the past, sizing nozzles of single zirconia material were often supplied, but in recent years, many customers prefer composite nozzles for the purpose of cost saving. The composite nozzle produced by our company includes two types: fire cement connection and pressing molding. The composite nozzle connected by cement is abandoned by more and more companies because of the risk of steel breakout. In contrast, in the manufacturing process of the press-formed composite nozzle, there is no need to use cement pointing, but inserts and press jackets are used. This manufacturing method makes the whole system very reliable without the risk of steel leakage between the inner part and the outer shell.
Our company manufactures various zirconia sizing nozzles suitable for continuous casting of steel. These nozzles are available either individually or with co-molded high aluminum jackets. In the past, sizing nozzles of single zirconia material were often supplied, but in recent years, many customers prefer composite nozzles for the purpose of cost saving. The composite nozzle produced by our company includes two types: fire cement connection and pressing molding. The composite nozzle connected by cement is abandoned by more and more companies because of the risk of steel breakout. In contrast, in the manufacturing process of the press-formed composite nozzle, there is no need to use cement pointing, but inserts and press jackets are used. This manufacturing method makes the whole system very reliable without the risk of steel leakage between the inner part and the outer shell.
1.Extend the life of tundish nozzle
2.Improve the quality of metallurgy
3.Flexible: the nozzle diameter can be changed to meet the needs of the ideal casting speed
Upper nozzle
The upper nozzle is located in the inner layer of the tundish, through which the molten steel flows to the replaceable sizing nozzle that plays a controlling role and determines the flow rate accordingly. The upper nozzle must be able to withstand long sequence times.
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