Optimization and application of refractory protection for high speed continuous casting tundish
High casting speed steel can cause severe erosion and erosion of the intermediate ladle.In order to further achieve efficient continuous casting production and meet the requirements of high casting speed and long service life intermediate ladles,protective technologies such as optimizing the impact zone and steel facing surface repair method of the intermediate ladle,optimizing the material of Al2 O3-MgO protective plate,embedding the perma-nent layer impact plate,and optimizing the installation method of the current stabilizer are used to improve the serv-ice life and safety factor of the intermediate ladle under high casting speed conditions.Under the high drawing speed condition of 4.5 m/min in the small billet continuous casting machine,the service life of the intermediate ladle has been increased from 20 h to 45 h,enabling the continuous casting machine to have a production capacity of long service life and high drawing speed.This has achieved the process conditions for continuous casting direct supply bar rolling production,meeting the process requirements of matching the continuous casting cycle with the rolling varie-ty and equipment maintenance.
high speedtundishrefractory protectionoptimize applications
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