Patent ID: 9199305
Filing Date: 2015-12-01
Classification: B22D

Abstract:
1. A manufacturing method of a recycled plate for a sliding nozzle, the method comprising performing, on a plate after having been used for the sliding nozzle, recycling processing including: impregnating a matrix of the plate that is formed by a refractory brick with liquid containing at least one of tar and pitch; heating the plate impregnated with the liquid to remove a volatile component, and filling a recess having an opening width and a depth of equal to or smaller than 1 mm, which is present on a surface of the plate after having been impregnated with the liquid and heated, with a thermal expandable refractory material of which volume is increased by at least one of generation reaction and change in a crystal structure with heating when the plate attached to the sliding nozzle is used.