METHOD FOR PRODUCING A METAL STRIP

摘要

THE INVENTION RELATES TO A METHOD FOR PRODUCING A METAL STRIP (11, 43) FROM A CAST BY ROLLING IN WHICH METHOD THE TECHNIQUE OF A PROFILED ROLLING IN COMBINATION WITH A STRIP ROLLING IS USED. THE MATERIAL FOR THE METAL STRIP IS FIRST CAST BY USING A CASTING TECHNIQUE TO PRODUCE A CAST PROFILE (1,26) HAVING THE CENTER PART THICKER THAN THE LATERAL PARTS AND THE CAST PROFILE IS IN AN ESSENTIALLY CONTINUOUS MANNER CONDUCTED INTO A ROLLING MILL WHERE DURING THE AT LEAST TWO-STAGED PROFILED ROLLING THE CAST PROFILE IS DIVIDED INTO TWO SYMMETRICAL SEGMENTS (4,32) AND MAINTAINED AS TWO EQUAL SEGMENTS. THESE SEGMENTS (4, 32) ARE SPREAD INTO THE LATERAL REGIONS OF THE MATERIAL TO BE ROLLED INTO A FLATTENED PROFILE WHICH IS AS AN OBJECT FOR AT LEAST ONE-STAGED STRIP ROLLING SO THAT THE SPREAD RATIOS BETWEEN THE CENTER PART DIMENSION OF THE CAST PROFILE AND THE WIDTH OF THE STRIP OF GREATER THAN 2.8:1 ARE ACHIEVED.