-
公开(公告)号:US11021806B2
公开(公告)日:2021-06-01
申请号:US16603496
申请日:2018-04-13
IPC分类号: C25D11/02 , C25D11/26 , B32B15/04 , B32B15/18 , C23C2/08 , C23C28/00 , C25D5/36 , C25D9/10 , C25D11/34
摘要: A Sn-plated steel sheet according to the present invention includes a steel sheet, a Sn-plated layer that is provided on at least one surface of the steel sheet, and a film that is provided on a surface of the Sn-plated layer and includes zirconium oxide and tin oxide, in which an amount of the zirconium oxide in the film is 0.2 mg/m2 to 50 mg/m2 in terms of metal Zr amount, in a depth direction analysis by X-ray photoelectron spectroscopy, a depth position A at which an element concentration of Zr present as the zirconium oxide is maximum is positioned closer to a surface of the film than a depth position B at which an element concentration of Sn present as the tin oxide is maximum, and a distance between the depth position A and the depth position B in a depth direction is 0.5 nm or more.
-
公开(公告)号:US11598009B2
公开(公告)日:2023-03-07
申请号:US16975637
申请日:2019-03-01
IPC分类号: B32B15/01 , C23C28/00 , C25D9/10 , C25D5/50 , C25D9/00 , C25D9/08 , C25D5/48 , C23C22/36 , B32B15/04 , C23C22/05 , C23C30/00 , B32B15/18 , C25D3/30 , C23C22/34 , C25D5/36
摘要: A Sn-plated steel sheet including a base plated steel sheet having a steel sheet, a Sn-plated layer on at least one surface of the steel sheet, and a film layer containing a zirconium oxide and a tin oxide. An adhesion amount of Sn per surface of the Sn-plated steel sheet is 0.1 g/m2 or more and 15 g/m2 or less, an amount of the zirconium oxide in the film layer is in a range of 1 mg/m2 or more and 30 mg/m2 or less in terms of an amount of metal Zr, a peak position of a binding energy of Sn3d5/2 of the tin oxide is 1.4 eV or more and less than 1.6 eV from a peak position of a binding energy of metal Sn, and a quantity of electricity required for reduction of the tin oxide is more than 5.0 mC/cm2 and 20 mC/cm2 or less.
-
公开(公告)号:US11859289B2
公开(公告)日:2024-01-02
申请号:US17772079
申请日:2019-12-19
发明人: Shintaro Yamanaka , Shigeru Hirano
CPC分类号: C23C28/3455 , C23C28/322 , C25D3/32 , C25D5/505 , C25D9/08 , B32B15/04 , B65D65/42
摘要: To provide a Sn-based plated steel sheet excellent in yellowing resistance, coating film adhesiveness, and sulfurization blackening resistance without performing the conventional chromate treatment.
A Sn-based plated steel sheet of the present invention includes: a steel sheet; a Sn-based plating layer located on at least one surface of the steel sheet; and a coating layer located on the Sn-based plating layer, wherein: the Sn-based plating layer contains 0.10 to 15.00 g/m2 of Sn per side in terms of metal Sn; the coating layer contains a Zr oxide and a Mn oxide; a content of the Zr oxide is 0.20 to 50.00 mg/m2 per side in terms of metal Zr; a content of the Mn oxide in terms of metal Mn is 0.01 to 0.50 times on a mass basis relative to the content of the Zr oxide in terms of metal Zr; and a depth position A where an element concentration of Mn is maximum is located on a side closer to a surface of the coating layer than a depth position B where an element concentration of Zr is maximum, and a distance in a depth direction between the depth position A and the depth position B is 2 nm or more in an element analysis in the depth direction by XPS.-
公开(公告)号:US11674233B2
公开(公告)日:2023-06-13
申请号:US17795405
申请日:2021-02-01
摘要: To provide a Sn-based plated steel sheet capable of exhibiting superior corrosion resistance, yellowing resistance, coating film adhesiveness, and sulphide stain resistance without using a chromate film. A Sn-based plated steel sheet of the present invention includes: a steel sheet; a Sn-based plating layer located on at least one surface of the steel sheet; and a coating layer located on the Sn-based plating layer, wherein the Sn-based plating layer contains 1.0 g/m2 to 15.0 g/m2 of Sn per side in terms of metal Sn, the coating layer contains zirconium oxide, and a content of the zirconium oxide is 1.0 mg/m2 to 10.0 mg/m2 per side in terms of metal Zr, the zirconium oxide includes zirconium oxide with an amorphous structure, and a crystalline layer whose main component is zirconium oxide with a crystalline structure is present on an upper layer of the zirconium oxide with the amorphous structure.
-
-
-