Rolled stainless steel object and manufacturing method therefor

• Main Authors: HAEGELI FRANCOISE, DAMASSE JEAN MICHEL, VIL DIDIER
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2018
• Subjects: MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS,WHEELS, RINGS, BARRELS, BALLS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention relates to a rolled stainless steel object, characterized in that the surface thereof has a raised and indented pattern comprising a random juxtaposition of at least two types of polygons (4). Each of said polygons (4) has at least three sides, a surface area of between 1 and 9 mm2, and a difference between its smallest and largest dimension of between 0.5 and 3 mm. Each polygon (4)is made up of substantially parallel rectilinear scratches (5) that have a depth of from 5 to 30 [mu]m and are separated by ridge lines (6), have axes that are from 0.1 to 0.3 mm from each other, anda Fourier transform spectral analysis of which scratches, carried out on a square of at least 100 mm2, shows that they have an isotropy of at least 40% between the rolling direction and the sideways direction, and two adjacent preferred angular orientations of which scratches, from among the three main preferred angular orientations thereof, are spaced apart by a minimum of 20 degrees and a maximum of 60 degrees. 本发明涉及种轧制不