SHAPE MEASURING METHOD OF COLD-ROLLED STEEL SHEET
PROBLEM TO BE SOLVED: To provide a shape measuring method capable of determining fine irregularities generated especially on a cold-rolled steel sheet having the thickness of 0.4 mm or less. SOLUTION: When measuring the surface shape of the cold-rolled steel sheet having the thickness of 0.4 mm or l...
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| creator | TATENO JUNICHI YOKOYAMA NAOYA MASUMOTO HIROSHI YASUHARA HIDEKO TOKUNAGA MUNEYASU |
| description | PROBLEM TO BE SOLVED: To provide a shape measuring method capable of determining fine irregularities generated especially on a cold-rolled steel sheet having the thickness of 0.4 mm or less. SOLUTION: When measuring the surface shape of the cold-rolled steel sheet having the thickness of 0.4 mm or less, a distance to the surface of the cold-rolled steel sheet is measured over a fixed length by using a range finder, and a component having a period of 1,000 to 2,000 times of the thickness of the cold-rolled steel sheet is extracted from measured values, and the fine irregularities on the surface of the steel sheet are detected based on the number of peaks and the height of the peaks in extraction results. COPYRIGHT: (C)2010,JPO&INPIT |
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| subjects | AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PHYSICS PUNCHING METAL TESTING TRANSPORTING |
| title | SHAPE MEASURING METHOD OF COLD-ROLLED STEEL SHEET |
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