Patterned metal plate and production thereof

Details Patterned metal plate and production thereof Patterned metal plate and production thereof

B - Operations, Transporting

21

B

13/1, 80/49, 80/

B21B 1/22 (2006.01) B21B 27/00 (2006.01)

Patent

CA 1320022

- 41 - ABSTRACT OF THE DISCLOSURE An uneven patterned metal strip or plate is formed with an uneven pattern as a surface decorative pattern. The pattern is constituted of one or more pattern unit containing a plurality of uneven dots. Each of the uneven dots has a size D. The uneven dots are arranged in a predetermined density to have given ration ? of occupying area versus plane area in said pattern unit. The size D and area ration ? being in a range of: 10 ? D ? 300 (µm) 30 ? ? ? 100 (%) and the size of said pattern unit has minimum length of 1 mm.

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