DULLED WORK ROLL FOR COLD ROLLING AND ITS MANUFACTURE
PROBLEM TO BE SOLVED: To improve the wear resistance and useful life of a dull roll which is used as the work roll for cold rolling (including temper rolling). SOLUTION: This dull roll has a dull surface on which fine ruggedness 10, which consists of a micropore 11 formed by irradiating an electron...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To improve the wear resistance and useful life of a dull roll which is used as the work roll for cold rolling (including temper rolling). SOLUTION: This dull roll has a dull surface on which fine ruggedness 10, which consists of a micropore 11 formed by irradiating an electron beam and a projecting part 12 by which the micropore is surrounded, is repeatedly formed by regular distribution pattern and rugged profile in which the diameter D of the micropore is 50-300 μm, the height (h) of the projecting part is 2-10 μm and the ratio h/w of the hight to the width of the projecting parts is |
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