METHOD FOR MAINTAINING TUNDISH
PROBLEM TO BE SOLVED: To provide a method for maintaining a tundish that hardly casues peeling-off trouble of a repairing material and a covering material. SOLUTION: The method for maintaining the tundish includes: (a) a step of cooling the tundish having finished continuous casting and removing res...
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creator | SHIMOKASA TOMOHARU SADANO KENJI MIZUMA YOSHIHIRO FUKUNAGA SHINICHI UEDA KAZUNORI |
description | PROBLEM TO BE SOLVED: To provide a method for maintaining a tundish that hardly casues peeling-off trouble of a repairing material and a covering material. SOLUTION: The method for maintaining the tundish includes: (a) a step of cooling the tundish having finished continuous casting and removing residual steel slag inside the tundish and a deteriorated lining refractory; (b) a step of suppressing a rate of minute particles with a particle diameter of |
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SOLUTION: The method for maintaining the tundish includes: (a) a step of cooling the tundish having finished continuous casting and removing residual steel slag inside the tundish and a deteriorated lining refractory; (b) a step of suppressing a rate of minute particles with a particle diameter of <75 μm occupying refractory aggregate to ≤25 mass%, using powdery silicate indicating ≥40 mass% of solubility when dissolved in 10°C water for five minutes as a binder, and spraying the repairing material containing a hardening accelerator formed of a lime compound to the inner surface of the tundish together with working water; and (c) a step of spraying a covering material containing ≥35 mass% of the minute particles with the particle diameter of <75 μm with respect to the refractory aggregate to the sprayed body of the repairing material together with the working water. 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subjects | CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING |
title | METHOD FOR MAINTAINING TUNDISH |
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