| 摘要 |
When manufacturing shaped steel in which the configuration of a cross-section perpendicular to the long direction has: a web extending in one direction; a first flange formed on one end of the web; and a second flange formed on the other end of the web, the second flange being wider that the first flange, universal rolling is performed such that the reduction of the first flange is made larger than the reduction of the second flange, and the reduction of the first flange is no less than the reduction of the web. |
