SECONDARY COOLING METHOD AND SECONDARY COOLING DEVICE FOR CONTINUOUS CASTING MACHINE

摘要

This secondary cooling device for a continuous casting machine is provided with a plurality of pairs of support roller and a plurality of nozzles, and each support roller has: a plurality of roller sections split in the widthwise direction of a cast strand; and grooves provided between the roller sections. The grooves provided to each upstream-side support roller and downstream-side support roller adjacent in the direction of conveyance are disposed offset from each other in the widthwise direction. A first nozzle among the plurality of nozzles is disposed at a first nozzle position set between a roller section provided to an upstream-side support roller and a groove provided to a downstream-side support roller.