| 摘要 |
PURPOSE: A manufacturing method of a steel sheet with even width directional physical property is provided to secure the even width directional physical property of a steel sheet which is obtained by the even width directional cooling condition by the prevention of the width directional heat radiation by piling up coils nearing each other. CONSTITUTION: A manufacturing method of a steel sheet with even width directional physical property is composed of the step of obtaining hot rolled steel sheet, the step of obtaining a coil by winding the obtained steel sheet and the step of cooling the coil. More than three pieces of coils are approximated to be piled up in a row, and more than five pieces of coils are piled up. The distance between adjacent two coils is 20cm or less. The area on which two coils are mutually faced is over 80% of the total area of the side of a coil. A cover is arranged on the outermost side part of the outermost coil of the approximately piled up coils in a row. The coiling temperature of outermost coil of the approximately piled up coils in a row is +20°C lower than other coils. |
