Abstract: A steel sheet for hot press-forming having a first coating layer on a surface of the steel sheet, containing 60% or more by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being more than 5 g/m2 and 50 g/m2 or less per side, and a second coating layer on the first coating layer, containing 10% to 25% by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being 10 to 90 g/m2 per side.

Abstract: A method for manufacturing a hot-pressed member The method includes heating a zinc-based coated steel sheet to a temperature range from an Ac3 transformation temperature to 1000° C., performing hot pressing work, and performing cooling, in which a surface-cleaning treatment is performed on the zinc-based coated steel sheet before the heating step is performed.

Abstract: A steel sheet for hot press-forming includes a zinc coating layer and a Si-containing compound layer in this order on a base steel sheet, wherein the Si-containing compound layer contains a silicone resin having an organic functional group of a carbon number of 4 or more.

Abstract: A hot-pressed member includes a steel sheet, a Ni-diffusion region present in a surface layer of the steel sheet, and an intermetallic compound layer and a ZnO layer which are provided in order on the Ni-diffusion region, the intermetallic compound layer corresponding to a ? phase present in a phase equilibrium diagram of a Zn—Ni alloy, wherein a spontaneous immersion potential indicated in a 0.5 M NaCl aqueous air-saturated solution at 25° C.±5° C. is ?600 to ?360 mV based on a standard hydrogen electrode.

Abstract: A hot-pressed member is formed using a tailored blank material obtained by butt joining respective ends of two or more coated steel sheets. The hot-pressed member has two or more sites formed by the respective coated steel sheets and at least one joining portion between the sites. Depending on a type of a coated layer of each of the coated steel sheets, tw/t0 is appropriately controlled where tw is a thickness of a thinnest portion in the joining portion and t0 is a thickness of a thinnest site of the sites. A tensile strength of each of the sites is 1180 MPa or more.

Abstract: A sensor capable of detecting light, hydrogen gas, and air pressure includes a metal oxide film produced by a process including the steps of: (a) forming an organic film by using a primer composition containing (i) an addition polymerizable compound including three or more reactive groups, (ii) an addition polymerizable compound including an acid group, and (iii) an addition polymerizable compound including a hydrophilic functional group; (b) forming a metal (M1) salt from the acid group; (c) substituting the metal (M1) salt of the acid group with a metal (M2) salt by treating the organic film with a metal (M2) ion aqueous solution; (d) reducing the metal (M2) ion so that a metal film is formed on a surface of the organic film; and (e) oxidizing the metal film.

Abstract: A method for producing a hot-pressed member includes heating a coated steel sheet, which includes, on a surface thereof, a Zn—Ni alloy coating layer containing 10% by mass or more and less than 13% by mass of Ni at a coating weight of over 50 g/m2 per side of the steel sheet, in a temperature region of an Ac3 transformation point to 1200° C. at an average heating rate of 12° C./second or more, and then hot-pressing the steel sheet.

Abstract: The present invention provides a resin composition which can be cured in a short time without a heat load on an adherend and with which a cured product having stable quality can be obtained. The resin composition in accordance with the present invention contains (i) a bisphenol A epoxy resin, (ii) an encapsulated curing agent including a core that contains a curing agent and a shell that covers the core, (iii) a filler, and (iv) a color material.

Abstract: The present invention provides a method with which curing can be carried out in a short time without a heat load on an adherend and a cured product having stable quality can be obtained. The resin composition curing method in accordance with the present invention includes the step (a) of directly and/or indirectly irradiating, with laser light, a resin composition (A) which contains (i) an epoxy resin, (ii) an encapsulated curing agent including a core that contains a curing agent and a shell that covers the core, (iii) a filler, and (iv) a color material.

Abstract: The invention provides methods for manufacturing warm press-formed members which can ensure post-coating corrosion resistance. A method for manufacturing warm press-formed members includes heating a steel sheet to a temperature in the range from 200 to 800° C. and warm press-forming the steel sheet at a temperature in the above range of temperatures, the steel sheet having a Zn—Ni alloy coating layer on its surface, the coating layer including 10 to 25 mass % Ni and the balance being Zn and inevitable impurities and having a coating weight of 10 to 90 g/m2.

Abstract: Provided is a hot-pressed member excellent in terms of paint adhesiveness and a method of manufacturing the hot-pressed member. A hot-pressed member has a coating layer containing Zn and Ni on the surface of a steel sheet of which the member is formed, an oxide film containing Zn on the coating layer, and a void formation rate is 80% or less for voids formed between the coating layer and the oxide film.

Abstract: A method of manufacturing a hot-pressed member including heating a coated steel sheet to 850° C. to 950° C., the coated steel sheet including a substrate steel sheet and a coating layer formed on the substrate steel sheet and containing 10% to 25% by mass of Ni and the balance being Zn and incidental impurities, in which the coating weight of the coating layer is 10 to 90 g/m2 per a side; and starting hot press forming when the temperature of the coated steel sheet which has been heated is 650° C. to 800° C.

Abstract: A steel sheet for hot press-forming having a first coating layer on a surface of the steel sheet, containing 60% or more by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being more than 5 g/m2 and 50 g/m2 or less per side, and a second coating layer on the first coating layer, containing 10% to 25% by mass Ni and a remainder composed of Zn and incidental impurities, a coating mass thereof being 10 to 90 g/m2 per side.

Abstract: A steel sheet for hot press-forming includes a zinc coating layer and a Si-containing compound layer in this order on a base steel sheet, wherein the Si-containing compound layer contains a silicone resin having an organic functional group of a carbon number of 4 or more.

Abstract: A hot-pressed member includes a steel sheet, a Ni-diffusion region present in a surface layer of the steel sheet, and an intermetallic compound layer and a ZnO layer which are provided in order on the Ni-diffusion region, the intermetallic compound layer corresponding to a ? phase present in a phase equilibrium diagram of a Zn—Ni alloy, wherein a spontaneous immersion potential indicated in a 0.5 M NaCl aqueous air-saturated solution at 25° C.±5° C. is ?600 to ?360 mV based on a standard hydrogen electrode.

Abstract: A method for assembling an apparatus including a display sheet having a non-transparent part in at least a part of the display sheet, has a bonding step of bonding the display sheet to a housing. The bonding step has a first step of attaching the display sheet to the housing via a UV curable adhesive, and a second step of causing an ultraviolet light emitting apparatus to irradiate, from an external surface side of the display sheet. The display sheet is attached to the housing with ultraviolet light after the first step so that the ultraviolet light passes through at least a part of the non-transparent part of the display sheet and cures the UV curable adhesive.

Abstract: A hot-pressed member includes a steel sheet, a Ni-diffusion region present in a surface layer of the steel sheet, and an intermetallic compound layer and a ZnO layer which are provided in order on the Ni-diffusion region, the intermetallic compound layer corresponding to a ? phase present in a phase equilibrium diagram of a Zn—Ni alloy, wherein a spontaneous immersion potential indicated in a 0.5 M NaCl aqueous air-saturated solution at 25° C.±5° C. is ?600 to ?360 mV based on a standard hydrogen electrode.

Abstract: In order to provide a steel sheet for hot pressing from which a hot-pressed part excellent in perforation corrosion resistance is obtainable and a method of manufacturing a hot-pressed part using the steel sheet for hot pressing, provided is a steel sheet for hot pressing having, sequentially on a surface of a base steel sheet: a plating layer I containing 60% by mass or more of Ni and the remainder consisting of Zn and inevitable impurities, a coating mass thereof being 0.01 to 5 g/m2; and a plating layer II containing 10 to 25% by mass of Ni and the remainder consisting of Zn and inevitable impurities, a coating mass thereof being 10 to 90 g/m2.

Abstract: The invention provides a steel sheet for hot press-forming that can reliably give hot press-formed parts having excellent paint adhesiveness, perforation corrosion resistance and joint corrosion resistance, and also provides a method for manufacturing the steel sheet for hot press-forming, and a method for producing hot press-formed parts using the steel sheet for hot press-forming. The steel sheet for hot press-forming includes a base steel sheet and a Zn-based coating layer with a mass of coating of 10 to 90 g/m2 on the base steel sheet, wherein the average ferrite grain diameter in the surface microstructure of the base steel sheet is not more than 20 ?m.

Abstract: A hot-pressed member includes a steel sheet, a Ni-diffusion region present in a surface layer of the steel sheet, and an intermetallic compound layer and a ZnO layer which are provided in order on the Ni-diffusion region, the intermetallic compound layer corresponding to a ? phase present in a phase equilibrium diagram of a Zn—Ni alloy, wherein a spontaneous immersion potential indicated in a 0.5 M NaCl aqueous air-saturated solution at 25° C.±5° C. is ?600 to ?360 mV based on a standard hydrogen electrode.