2019 Pittsburgh AISTech

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Investigation of Water Droplet Impingement Under Conditions of the Secondary Cooling Zone of a Continuous Slab Caster (Room 407)

Optimal cooling strategies for the secondary cooling zone of the continuous casting process are crucial for the production of high-quality steel slabs. To find such strategies, it is necessary to understand the influence of spray properties on the cooling performance. Our experimental setup allows a comparative monitoring of water droplet impingement characteristics on cold and hot steel surfaces. Droplet sizes and velocities at different air-mist spray conditions were examined by laser granulometry and high-speed imaging. In part, discrimination between incoming primary spray and secondary droplets formed during splashing could be achieved.