Patent application number | Description | Published |
20090053551 | Surface Treated Stainless Steel Sheet for Automobile Fuel Tank and for Automobile Fuel Pipe with Excellent Salt Corrosion Resistance and Weld Zone Reliability and Surface Treated Stainless Steel Welded Pipe for Automobile Fuel Inlet Pipe Excellent in Pipe Expandability - The present invention provides surface treated stainless steel sheet for an automobile fuel tank or for a fuel pipe with excellent corrosion resistance and weld zone reliability in a salt environment and a surface treated stainless steel welded pipe for an automobile fuel inlet pipe, characterized by comprising a stainless steel sheet substrate having a predetermined composition of ingredients on the surface of which is provided a corrosion-proofing plating layer comprising Sn and unavoidable impurities and having a weight of 10 g/m | 02-26-2009 |
20100239773 | AQUEOUS TREATING SOLUTION FOR SN-BASED PLATED STEEL SHEET EXCELLENT IN CORROSION RESISTNACE AND PAINT ADHESION, AND PRODUCTION METHOD OF SURFACE-TREATED STEEL SHEET - An aqueous treating solution for an Sn-based plated steel sheet, comprising (A) an organic material, (B) a water-soluble chromium compound, (C) a water-dispersible silica, and water, wherein the organic material (A) is at least one member selected from an oxy-acid with the ratio of hydroxyl group/carboxyl group in one molecule being from 3/1 to 10/1, its lactone form and an oxide derivative thereof, the water-soluble chromium compound (B) does not contain hexavalent chromium, and pH is from 0.7 to 6.0. | 09-23-2010 |
20110030441 | PLATED STEEL SHEET AND METHOD OF HOT-STAMPING PLATED STEEL SHEET - In a plated steel sheet having an aluminum-plating layer comprising at least Al formed on one side or both sides of the steel sheet, there is provided a plated steel sheet which, owing to the presence of a surface coating layer containing a compound having wurtzite crystal structure on the aluminum-plating layer, has excellent lubricity, prevents the plating thickness from becoming uneven during heating, and can improve formability and productivity in hot stamping, and a method of hot-stamping the plated steel sheet. | 02-10-2011 |
20110284136 | Galvannealed steel sheet and producing method therefor - A galvannealed steel sheet includes: a steel sheet; a galvannealed layer; and a Mn—P based oxide film. A Zn—Fe alloy phase in the galvannealed layer is measured by X-ray diffractometry. The value of a diffraction intensity Γ(2.59 Å) of Γ phase divided by a diffraction intensity δ | 11-24-2011 |
20120073351 | PLATED STEEL SHEET AND METHOD OF HOT-STAMPING PLATED STEEL SHEET - In a plated steel sheet having an aluminum-plating layer comprising at least Al formed on one side or both sides of the steel sheet, there is provided a plated steel sheet which, owing to the presence of a surface coating layer containing a compound having wurtzite crystal structure on the aluminum-plating layer, has excellent lubricity, prevents the plating thickness from becoming uneven during heating, and can improve formability and productivity in hot stamping, and a method of hot-stamping the plated steel sheet. | 03-29-2012 |
20130236734 | METAL FOIL FOR BASE MATERIAL AND PRODUCING METHOD THEREOF - A metal foil including: a steel layer whose thickness is 10 to 200 μm; an Al-containing metal layer arranged on the steel layer; and plural granular alloys which exist in an interface between the steel layer and the Al-containing metal layer, wherein, when a cutting-plane line of a surface of the Al-containing metal layer is defined as a contour curve and an approximation straight line of the contour curve is defined as a contour average straight line, a maximum point, whose distance from the contour average straight line is more than 10 μm, is absent on the contour curve, and wherein, when an equivalent sphere diameter of the granular alloys is x in units of μm and a thickness of the Al-containing metal layer is T in units of μm, the granular alloys satisfy x≦0.5T. | 09-12-2013 |
20130236737 | METAL FOIL FOR BASE MATERIAL - A metal foil including: a steel layer whose thickness is 10 to 200 μm; an alloy layer which contains Fe and Al and which is formed on the steel layer; and an Al-containing metal layer arranged on the alloy layer, wherein, when a cutting-plane line of a surface of the Al-containing metal layer is defined as a contour curve and an approximation straight line of the contour curve is defined as a contour average straight line, a maximum point, whose distance from the contour average straight line is more than 10 μm, is absent on the contour curve, and a thickness of the alloy layer is 0.1 to 8 μm and the alloy layer contains an Al | 09-12-2013 |
20150020562 | PLATED STEEL PLATE FOR HOT PRESSING AND HOT PRESSING METHOD OF PLATED STEEL PLATE - The present invention provides plated steel sheet for hot press use which is excellent in hot lubricity, coating adhesion, spot weldability, and coated corrosion resistance and a method of hot pressing plated steel sheet. The present invention is Plated steel sheet for hot press use and a method of hot pressing plated steel sheet characterized by being plated steel sheet for hot press use which contains an Al plating layer which is formed on one surface or both surfaces of said steel sheet, and a surface coating layer which is formed on said Al plating layer, said surface coating layer containing at least one Zn compound which is selected from a group comprised of Zn hydroxide, Zn phosphate, and a Zn organic acid. | 01-22-2015 |
20150044499 | Al-PLATED STEEL SHEET, METHOD FOR HOT-PRESSING Al-PLATED STEEL SHEET, AND AUTOMOTIVE PART - An Al-plated steel sheet includes: a steel sheet; an Al plating layer which is formed on one surface or both surfaces of the steel sheet and contains at least 85% or more of Al by mass %; and a surface coating layer which is laminated on the surface of the Al plating layer and contains ZnO and one or more lubricity improving compounds. | 02-12-2015 |