Abstract: A laminated metal sheet includes a metal sheet, a first polyester resin layer, and a second polyester resin layer, and the first polyester resin layer contains 30% by mass to 60% by mass of: polyethylene terephthalate; or copolymerized polyethylene terephthalate having a copolymerization component content of less than 6 mol %; and 40% by mass to 70% by mass of polybutylene terephthalate, the second polyester resin layer is copolymerized polyethylene terephthalate having a copolymerization component content of less than 14 mol %, residual orientations of the first and second polyester resin layers are less than 20%, and film thicknesses X and Y of the first and the second polyester resin layers before forming satisfy predetermined conditions.

Abstract: A high strength and high formability steel sheet contains, by mass % of the steel sheet: greater than 0.020% and less than 0.040% of C; not less than 0.003% and not greater than 0.100% of Si; not less than 0.10% and not greater than 0.60% of Mn; not less than 0.001% and not greater than 0.100% of P; not less than 0.001% and not greater than 0.020% of S; not less than 0.005% and not greater than 0.100% of Al; and greater than 0.0130% and not greater than 0.0170% of N, wherein a remainder is Fe and inevitable impurities, and the steel sheet has: a tensile strength in a rolling direction of not lower than 520 MPa; an Erichsen value of not less than 5.0 mm; and a resin film layer at least on a side to be an inner surface of a can.

Abstract: A first polyester resin layer formed on a surface of a metal sheet to serve as the exterior of a container after being formed into the container contains 30% to 60% by mass of poly-ethylene terephthalate or copolymerized polyethylene terephthalate having a copolymerization component content of less than 6 mol %, and 40% to 70% by mass of polybutylene terephthalate. A second polyester resin layer formed on a surface of the metal sheet to serve as the interior of a container after being formed into the container is copolymerized polyethylene terephthalate having a copolymerization component content of less than 14 mol %. The degree of residual orientation of the first and the second polyester resin layers is in a range of 2% to 50%. The thicknesses of the first and the second polyester resin layers after lamination are not less than 6 ?m.

Abstract: There is provided a resin-coated metal sheet for containers that can satisfy various characteristics required for food can materials. The resin-coated metal sheet for containers includes a resin coating layer (A) having a multilayered structure mainly composed of a polyester resin on at least one surface thereof. The resin coating layer (A) includes a resin layer (a1). The resin layer (a1) adheres to the metal sheet, contains (i) a polyester resin, (ii) a phenolic resin, (iii) a metal alkoxide compound and/or a metal chelate compound, (iv) an epoxy resin, and (v) at least one selected from the group consisting of polyamine resins, polyamidoamine resins, and polyamide resins, and is mainly composed of the polyester resin. Preferably, a polyester film (a2) is disposed on the resin layer (a1).

Abstract: A resin coated metal sheet includes a metal sheet, a first resin coating layer formed on one main surface of the metal sheet and formed of a resin material whose difference between a heat quantity of crystallization and a heat quantity of fusion after being laminated to the metal sheet is 0 J/g to 20 J/g on a unit weight basis, and a second resin coating layer formed on another main surface of the metal sheet.

Abstract: A steel sheet containing C: 0.0005% or more and 0.0035% or less, Si: 0.05% or less, Mn: 0.1% or more and 0.6% or less, P: 0.02% or less, S: less than 0.02%, Al: 0.01% or more and less than 0.10%, N: 0.0030% or less, B: 0.0010% or more, in which the relationship B/N?3.0 is satisfied and the balance being Fe and inevitable impurities, and a microstructure in which the average integrated intensity f in the (111)[1-10] to (111)[-1-12] orientations on a plane parallel to a sheet surface at a position located at ¼ of the thickness of the steel sheet is 7.0 or more, in which an average ferrite grain size is 6.0 ?m or more and 10.0 ?m or less, and the relationships EAVE?215 GPa, E0?210 GPa, E45?210 GPa, E90?210 GPa, and ?0.4??r?0.4 are satisfied.

Abstract: A steel sheet containing C: 0.02% or more and 0.10% or less, Si: 0.01% or more and 0.5% or less, P: 0.001% or more and 0.100% or less, S: 0.001% or more and 0.020% or less, N: 0.007% or more and 0.025% or less, Al: 0.01% or more and {?4.2×N (%)+0.11} % or less, Mnf: 0.10% or more and less than 0.30% where Mnf is defined by equation Mnf=Mn?1.71×S, and the balance being Fe and inevitable impurities, in which the steel sheet has a thickness of 0.35 (mm) or less, the product of the lower yield point (N/mm2) of the steel sheet and the thickness (mm) is 160 (N/mm) or less, and the product of the upper yield point (N/mm2) of the steel sheet is 52.0 (N) or more.

Abstract: An object of the present invention is to provide a method for designing a metal material having mechanical properties with which a specified spring back angle can be achieved after any one of metal materials having a wide variety of mechanical properties and thicknesses has been formed by performing cylinder forming and a product formed by using the method.

Abstract: A steel sheet is provided containing C: 0.070% or more and less than 0.080%, Si: 0.003% or more and 0.10% or less, Mn: 0.51% or more and 0.60% or less, wherein the average grain size is 5 ?m or more, the grain elongation rate is 2.0 or less, the difference in hardness is 10 points or more and/or 20 points or more depending on how it is determined, the tensile strength is 500 MPa or more, and the elongation after fracture is 10% or more.

Abstract: Provided are an apparatus for continuous electrolytic treatment of a steel sheet that is suitable for producing a surface-treated steel sheet and a method for producing the surface-treated steel sheet using the apparatus for continuous electrolytic treatment of a steel sheet. The apparatus includes N pairs of tabular electrodes having a length L and being arranged to respectively face two surfaces of a steel sheet. Each electrode includes n sections arranged in the longitudinal direction of the electrode and disposed on the surface of the electrode facing the steel sheet surface. Each section is constituted by a conductive portion including an electrode portion having a length T1 and a nonconductive portion made by making an electrode portion having a length T2 nonconductive, where n×N?10, 0.96?T2/(T1+T2)?0.05, and 0.9?T1/L?0.1.

Abstract: Provided are a Cr-free surface-treated steel sheet that has excellent humid resin adhesion and corrosion resistance and that exhibits no streak-like surface defects, a method for manufacturing such a surface-treated steel sheet, and a resin-covered steel sheet using such a surface-treated steel sheet. A surface-treated steel sheet includes a steel sheet; a corrosion-resistant coating, on at least one side thereof, that is composed of at least one layer selected from a Ni layer, a Sn layer, an Fe—Ni alloy layer, an Fe—Sn alloy layer, and an Fe—Ni—Sn alloy layer; and an adherent coating, on the corrosion-resistant coating, that contains Zr and at least one species selected from P derived from a phosphoric acid and C derived from a phenolic resin in a total mass ratio to Zr of 0.01 to 10.

Abstract: A steel sheet for containers that has excellent film adhesion qualities, and has a Zr compound film formed thereupon by immersion in or electrolytic treatment with a solution containing Zr ions, F ions, and hydroxylic acid, the Zr compound film being applied in an amount such that the metal Zr content is 0.1-100 mg/m and the F content is no more than 0.1 mg/m2.

Abstract: Disclosed is a manufacturing method for steel sheets for containers that enables reliable, continuous manufacture of steel sheets, with excellent film adhesion qualities, for containers. The manufacturing method for steel sheets for containers is a method in which a film containing Zr is formed on the surface of the steel sheets by immersing, and/or subjecting to electrolytic treatment, the steel sheets in a solution containing Zr ions, F ions, and at least one reaction accelerating component selected from a group including Al ions, boric acid ions, Cu ions, Ca ions, metal Al, or metal Cu.

Abstract: A manufacturing method for steel sheets for containers produces steel sheets with excellent film adhesion qualities. This steel sheet for containers has, on a steel sheet, a chemical conversion coating with a metal Zr content of 1-100 mg/m2, a P content of 0.1-50 mg/m2, and an F content of no more than 0.1 mg/m2, upon which is formed a phenolic resin layer with a C content of 0.1-50 mg/m2. Moreover, the manufacturing method for steel sheets for containers is a method for obtaining the steel sheet for containers wherein the chemical conversion coating is formed on the steel sheet by subjecting the steel sheet to immersion in or electrolytic treatment with a treatment solution containing Zr ions, phosphoric acid ions, and F ions; and subsequently, the steel sheet upon which the chemical conversion coating has been formed is immersed in, or undergoes topical application of, an aqueous solution containing phenolic resin, then dried.

Abstract: A steel sheet for containers that has excellent film adhesion qualities, and has; a chemical conversion coating formed by immersing or subjecting to electrolytic treatment a steel sheet in a solution containing Zr ions, F ions, with adhesion amount of 0.1 to 100 mg/m2 for metal Zr and no more than 0.1 mg/m2 for F; and a hydroxyl acid treatment layer formed on the chemical conversion coating, the layer having a C adhesion amount of 0.05 to 50 mg/m2.

Abstract: Disclosed is a steel sheet for containers that maintains excellent corrosion resistance even when a surface treatment that replaces a chromate treatment has been conducted, and that has excellent film adhesion qualities and appearance. This steel plate for containers has, on at least one surface thereof, a chemical conversion coating including at least two coatings selected from a zirconium coating that contains zirconium and has a metal zirconium content of 0.1-9 mg/m2, a phosphate coating that contains phosphoric acid and has a phosphorous content of 0.1-8 mg/m2, and a phenolic resin coating that contains phenolic resin in an amount of 0.5-8 mg/m2 in terms of carbon, the percentage of the area of the surface of the chemical conversion coating layer having particles Of a prescribed size being 0.1-50%.

Abstract: A manufacturing method for steel sheets for containers produces steel sheets with excellent film adhesion qualities. In a method for manufacturing steel sheets upon which is formed a chemical conversion coating having a metal Zr content of 1-100 mg/m2 and F content of no more than 0.1 mg/m2, the chemical conversion coating is formed on the steel sheet by subjecting the steel sheet to immersion in or electrolytic treatment with a treatment solution containing Zr ions and F ions, and subsequently, the steel sheet upon which the chemical conversion coating has been formed is washed with water having a temperature of at least 80° C. and dried.

Abstract: A coated steel sheet includes a corrosion-resistant coating composed of at least one layer selected from the group consisting of a Ni layer, a Sn layer, an Fe—Ni alloy layer, an Fe—Sn alloy layer, and an Fe—Ni—Sn alloy layer disposed on at least one surface of a steel sheet, and an adhesive coating disposed on the corrosion-resistant coating, the adhesive coating containing Zr and further containing at least one metal element selected from the group consisting of Co, Fe, Ni, V, Cu, Mn, and Zn, in total, at a ratio by mass of 0.01 to 10 with respect to Zr. The coated steel sheet has excellent humid resin adhesion and corrosion resistance, in which streaky surface defects do not occur.

Abstract: The hot-dip galvanized steel sheet has: a steel sheet containing 0.1 to 3.0% of Si by mass; a hot-dip galvanizing layer; and a segregated layer, being placed between the steel sheet and the hot-dip galvanizing layer, having a thickness in a range from 0.01 to 100 ?m; containing an oxide containing Si, and being composed of at least one component selected from the group consisting of S, C, Cl, Na, K, B, P, F, and N. The hot-dip galvanized steel sheet shows beautiful surface appearance without generating non-plating portion and provides excellent plating adhesion and sliding property in spite of using a base steel sheet containing a large quantity of Si. Furthermore, the alloy hot-dip galvanized steel sheet obtained by allying the hot-dip galvanized plating also has excellent anti-powdering property.

Abstract: The present invention provides for a zinc-based coated steel sheet having a zinc-based coating layer and a lubricant film, which is formed on the zinc-based coating layer, containing zinc phosphate particles in an amount of 50 wt. % or more, and having substantially no reaction layer formed by reaction between the zinc-based coating and the zinc phosphate particles, and a method for the manufacture thereof. The zinc-based coated steel sheet according to the present invention has an excellent anti-peeling property, excellent frictional property, even in the non-lubricated condition which occurs at areas where the press oil film is broken, and excellent anti-galling property.