Method for producing a flat steel product having high reflectivity, flat steel product, and mirror element for solar concentrators

The invention relates to a method for producing a flat steel product having high reflectivity, the surfaces of which have an arithmetic mean roughness Ra less than 0.03 µm, wherein flat steel product having an arithmetic mean roughness Ra < 2.5 µm on at least one surface is cold-rolled in several...

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Bibliographic Details
Main Authors KAZMIERSKI, JORG, KARSTEN, UTZ, KRAUTSCHICK, HANS-JOACHIM, WIEMER, DIRK, LANGE, KLAUS MANFRED, PULS, STEFAN PETER, SCHAUER-PASS, JANINE, SCHUHMACHER, BERND, GLASS, ROMAN, KOLBE, NINA, WORSTER, FRANK
Format Patent
LanguageEnglish
Published 14.05.2015
Subjects
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL
PERFORMING OPERATIONS
PUNCHING METAL
ROLLING OF METAL
TRANSPORTING
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Summary:The invention relates to a method for producing a flat steel product having high reflectivity, the surfaces of which have an arithmetic mean roughness Ra less than 0.03 µm, wherein flat steel product having an arithmetic mean roughness Ra < 2.5 µm on at least one surface is cold-rolled in several rolling passes, the total deformation rate achieved by means of the cold rolling is 75 - 90%, the deformation rate decreases from rolling pass to rolling pass, the rolling pressure in the first rolling pass is 200 - 800 MPa and the rolling pressure in the last rolling pass is 1000 - 4000 MPa, a rolling oil having a viscosity of 5 - 10 mm
Bibliography:Application Number: AU20130323061