Cooling drum for continuous casting of thin cast slab, manufacturing apparatus of thin-walled cast piece, and manufacturing method of thin cast slab

摘要

Problem to be solved: to continuously stabilize the cooling rate of the thin cast slab in the width direction by continuously using the cooling drum provided with the crown to the outer peripheral surface, the cooling drum for continuous casting of thin cast slab can be stably carried out, and the casting of the thin cast slab can be performed stably. Problem to be solved: to provide a manufacturing apparatus of a thin cast piece having a cooling drum for continuous casting of thin cast slab and a method of manufacturing a thin cast slab.Solution: sleeve body 23 having cooling channel 24 formed thereinThe plating layer 28 formed on the outer periphery of the sleeve body 23 andAndThe outer peripheral surface of the plating layerThe first crown is formed so as to protrude outwardly from the center of the width toward the width end portion and protrude outwardly in the radial direction.The cooling water passage 24 formed in the sleeve body 23 isExtending in the width directionA second crown which is curved so as to protrude outwardly from the center of the width toward the width end portion is formed.Diagram