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METHOD FOR MANUFACTURING STEEL SHEET FOR MAKING JOC STEEL PIPE AND JOC STEEL PIPE
METHOD FOR MANUFACTURING STEEL SHEET FOR MAKING JOC STEEL PIPE AND JOC STEEL PIPE
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机译:制造JPC钢管和JPC钢管的钢板的制造方法
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摘要
Disclosed is a method for manufacturing a steel sheet for making a JCO steel pipe and a JCO steel pipe. An aspect of the present invention provides a method for manufacturing a steel sheet for making a JCO steel pipe by cooling a heated steel sheet, wherein cooling is conducted so that rapid cooling regions and slow cooling regions can be formed alternately in the widthwise direction of the steel sheet during the cooling, and the rapid cooling regions and the slow cooling regions are parallel to one another in the lengthwise direction of the steel sheet.
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