METHOD FOR MANUFACTURING STEEL PLATE AND METHOD FOR SETTING PASS SCHEDULE OF ROLLING

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a properly shaped steel plate and a method for setting a pass schedule of rolling.SOLUTION: In a method for manufacturing a steel plate, a heated slab is rolled through one or more passes by a rolling machine so as to be turned into a controlled rolling material with a predetermined controlled rolling starting plate thickness; subsequently, the controlled rolling material is cooled to a predetermined controlled rolling starting temperature by cooling equipment; and additionally, controlled rolling is performed through the one or more passes by the rolling machine so that the plate thickness can be set to be a finished plate thickness. The controlled rolling starting plate thickness is changed according to the rolling width of the controlled rolling material.SELECTED DRAWING: Figure 4