Loading patent…
AssigneeJfe Steel Corporation
InventorsKazuaki Tsuchimoto, Kento Watanabe, Takeshi Matsuda, Yoichi Makimizu, Katsuya Hoshino, Wataru Baba, Taiyo Asakawa
Estimating the term…
A galvanized steel sheet is disclosed. The galvanized steel sheet has an arithmetic average roughness Ra of a surface of the steel sheet of 0.5 μm to 2.5 μm, and has concave and convex portions on the surface thereof, in which there are flattened portions in the convex portions, in which the number of valleys between the convex portions having a valley width of 0.1 mm or more and a maximum depth of 2.0 μm or more is 50 or more and less than 100 per 25 mm on a straight line, and in which, in the flattened portions in the convex portions, the number of concave and convex portions having a height difference of 0.3 μm or more is less than 20 per 2.5 mm on a straight line.
A galvanized steel sheet, wherein an arithmetic average roughness Ra of a surface of the steel sheet is 0.5 μm to 2.5 μm, wherein the steel sheet has concave and convex portions on the surface thereof, wherein there are flattened portions in the convex portions, wherein a number of valleys between the convex portions having a valley width of 0.1 mm or more and a maximum depth of 2.0 μm or more is 50 or more and less than 100 per 25 mm on a straight line, and wherein, in the flattened portions in the convex portions, a number of concave and convex portions having a height difference of 0.3 μm or more is less than 20 per 2.5 mm on a straight line.
Dependencies are inferred from the claim text.