CPC C21D 9/46 (2013.01) [B21B 1/227 (2013.01); B21B 3/02 (2013.01); C21D 1/26 (2013.01); C21D 6/002 (2013.01); C21D 8/0205 (2013.01); C21D 8/0236 (2013.01); C21D 8/0247 (2013.01); C21D 8/0278 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01)] | 12 Claims |
1. A method for producing a patterned stainless steel sheet with improved visual characteristics in the wavelength area of visible light, the method comprising:
providing a deformed stainless steel sheet having a thickness of 0.3-3.5 mm;
performing at least one heat treatment on the deformed stainless steel sheet, wherein the heat treatment of the deformed stainless steel sheet is conducted at a temperature of 900-1200° C.;
performing at least one mechanical treatment on at least one surface of the heat treated stainless steel sheet;
transferring the mechanically treated stainless steel sheet to a patterning process, wherein, in the patterning process, at least one side of the mechanically treated stainless steel sheet is patterned using a patterning roll comprising a surface having an emboss depth of up to 100 micrometers to provide a patterned stainless steel sheet; and
performing at least one heat treatment on the patterned stainless steel sheet, wherein the heat treatment of the patterned stainless steel sheet is conducted at a temperature range of 900-1200° C.,
wherein the mechanical treatment before the patterning process is carried out by blasting and the patterned stainless steel sheet has a specular reflectance of less than or equal to 25%.
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