COOLING METHOD AND COOLING DEVICE FOR HOT-ROLLED STEEL SHEETS

摘要

Provided is a method for cooling hot-rolled steel sheets after a final rolling. Using cooling water at a flow rate between 4 m³/m²/min and 10 m³/m²/min, the hot-rolled steel is cooled from a first temperature between 600°C and 650°C to a second temperature less than or equal to 450°C. At least 80% of the surface area of the surface being cooled is directly impacted by a jet of the aforementioned cooling water.