Abstract
Patent number 11958106 is assigned to Krosakiharima Corporation (Fukuoka, Japan) .The following quote was obtained by the news editors from the background informa tion supplied bythe inventors: “BACKGROUND ART“A sliding nozzle device for use in continuous casting of molten steel employs t wo or three refractoryplates, each of which is attached to a respective one of two or three plate-receiving metal frames. Whenthese plates reach the end of th eir life due to wear damage, it is necessary to open the sliding nozzledevice t o take out the old plates from respective plate-receiving metal frames, and repl ace the old plateswith new ones. This replacement operation imposes a heavy bur den on an operator, because it has to beperformed under high temperature, and t he weight of the plate, particularly heavy ones, is close to 30 kg.
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