Kure Hiroshima, Japan
Kure Hiroshima, Japan

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Patent
Nisshin Steel Co. | Date: 2017-05-03

A tin-plated stainless steel sheet which has a tin plating layer having good adhesion to a stainless steel sheet and exhibits excellent whisker resistance in various environments, and wherein a nickel plating layer having a thickness of 0.3-3 m is formed on a stainless steel sheet, and a tin plating layer having a thickness of 0.3-5 m is formed on the nickel plating layer. This tin-plated stainless steel sheet is characterized in that nickel crystals in the nickel plating layer have a lattice distortion of 0.5% or less.


To provide a molten Al plated steel wire excellent in torsional resistance that does not cause breakage due to torsion in application to an ordinary production equipment for a strand wire, in which element wires are applied with torsion. A molten Al plated steel wire containing a steel core wire having a diameter of from 0.05 to 0.50 mm as a core material, having thereon molten Al plating with a depositing amount thereof that is uniformized to satisfy the following expression (1) for an average diameter D_(A) (mm) and a minimum diameter D_(MIN) (mm) in the longitudinal direction of the wire:


Patent
Nisshin Steel Co. | Date: 2017-05-24

This colored coated metal sheet comprises a metal sheet and one or more coating films arranged on top of the metal sheet, and has a specular gloss at 60 of 60-100 and an L value of 70 or less in the Hunter Lab color system. The outermost coating film among the coating films is configured of a polyester, and contains particles that contain a coloring pigment. The particles have a D_(90) of from 0.05 m to 0.70 m, and the content of the particles in the outermost coating film is from 10% by mass to 60% by mass.


This coated metal sheet for exterior covering has a metal sheet and a top coating layer disposed on the metal sheet, the top coating layer is configured from a fluororesin and contains a gloss control agent comprising 0.01-15 vol% of microporous particles and a matte agent comprising primary particles, and the coated metal sheet satisfies the belowmentioned formulae. In the number-based particle size distribution of the gloss control agent and the matte agent, R is the number average particle size (m) of the gloss control agent, D1_(97.5) and D2_(97.5) represent the 97.5% particle size (m) of the gloss control agent and the matte agent, Ru is the upper limit particle size (m) of the gloss control agent, and T is the top coating layer thickness (m).


Patent
Nisshin Steel Co. | Date: 2017-06-21

The present invention suppresses deterioration in the corrosion resistance of a worked portion resulting from working cracks in a Zn-based plated layer (3) in a workpiece (2) formed into a predetermined shape by performing plastic working on a Zn-based plated steel sheet (1) coated with a Zn-containing metal as a raw material. That is, plastic working is performed on a raw material that is a Zn-based plated steel sheet (1) to obtain a workpiece (2) having a predetermined shape, and thereafter, pressurization processing is performed on a worked portion in a sheet thickness direction to deform the plated metal, thus decreasing the width of working cracks in the plated metal. Accordingly, it is possible to reduce the deterioration in the corrosion resistance of the worked portion of the Zn-based plated workpiece.


Patent
Nisshin Steel Co. | Date: 2017-06-14

This coated steel sheet comprises: a steel sheet; a primer coating film that is arranged on the steel sheet and contains a chromic acid-based rust preventive pigment and aggregate that serves as primary particles, while not containing porous particles; and a top coating film that is arranged on the primer coating film. The aggregate satisfies the following formula (1) and formula (2). (In the formulae, D_(10) represents the 10% particle diameter (m) of the aggregate in the number-based cumulative particle size distribution; D_(90) represents the 90% particle diameter (m) of the aggregate in the number-based cumulative particle size distribution; and T represents the film thickness (m) of a portion of the primer coating film, in which the aggregate is not present.)


Patent
Nisshin Steel Co. | Date: 2017-03-07

In a lid for a battery case where an annular thin portion is formed integrally with a lid main body by coining, a pair of ribs formed integrally with the lid main body so as to bulge from the lid main body and extending in a short direction of the lid main body are disposed on both sides of the annular thin portion in a long direction of the lid main body.


This coated metal sheet is for exterior covering, and has a metal sheet and a top coating layer disposed on the metal sheet. The top coating layer is configured from a fluororesin and contains 0.01-15 vol% of microporous particles as a gloss control agent, and the coated metal sheet satisfies the belowmentioned formulae. In the belowmentioned formulae, in the number-based particle size distribution of the gloss control agent, R is the number average particle size (m), D_(97.5) is the 97.5% particle size (m), Ru is the upper limit particle size (m), and T is the top coating layer thickness (m): D_(97.5)/T 0.9; Ru 1.2T; R 1.0; and 3 T 40.


Patent
Nisshin Steel Co. | Date: 2017-06-28

Problem In an austenitic stainless steel sheet, the anisotropy of the workability and the fatigue resistance characteristics caused by an oxide based inclusion is decreased. Solution A hot rolled austenitic stainless steel sheet containing from 0.030 to 0.300% of C, from 0.30 to 3.20% of Si, from 0.90 to 17.00% of Mn, from 1.00 to 8.00% of Ni, from 14.00 to 19.00% of Cr, from 0.50 to 3.50% of Cu, from 0.045 to 0.250% of N, from 0.0001 to 0.0300% of Al, from 0 to 0.50% of V, from 0 to 0.50% of Nb, from 0 to 0.30% of Ti, and from 0 to 0.010% of B, all in terms of percentage by mass, with the balance of Fe and unavoidable impurities, and having a converted average composition of an oxide based inclusion that contains 30% by mass or less of Al_(2)O_(3), 60% by mass or less of SiO_(2), and 15% by mass or more of MnO, and satisfies MnO -3SiO_(2)+110.


Patent
Nisshin Steel Co. | Date: 2017-05-31

A lithium-ion secondary-battery case that allows bonding without weld spatter and has high strength against external force acting on the battery case, and a method for manufacturing the lithium-ion secondary-battery case are provided. Specifically, an austenitic stainless steel foil is used for a cup component (2), and a two-phase stainless steel having an austenite transformation start temperature A_(C1) in a temperature increase process at 650C to 950C and an austenite and ferrite two-phase temperature range of 880C and higher , is used for a cover component (3), and the diffusion bonding is proceeded while accompanied by grain boundary movement upon transformation of the two-phase steel from a ferrite phase into an austenite phase within a heating temperature range of 880C to 1080C.

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