48results about How to "Excellent film adhesion" patented technology

The invention provides a technique of high industrial practicality for obtaining a transparent electroconductive coating film having superior electroconductivity, optical transmittance, haze properties, and adhesion. Provided is a method for producing silver nanowire ink, in which a viscosity modifier and a water-soluble acrylic-urethane copolymer resin are added to a water solvent or a mixed solvent of water and an alcohol in which silver nanowires are dispersed. The contained amount of the water-soluble acrylic-urethane copolymer resin relative to the total amount of silver nanowire ink can be 0.05-2.0 mass%. The contained amount of silver relative to the total amount of silver nanowire ink is preferably 0.05-1.0 mass%. The contained amount of the viscosity modifier relative to the total amount of silver nanowire ink is preferably 0.01-1.0 mass%. The viscosity of the silver nanowire ink is preferably adjusted within the range of 1-100 mPa.s.

A chemical treatment liquid for steel material coating primer comprising a zirconium fluorine complex amounting to 50 to 500 ppm by mass in terms of Zr, free fluorine amounting to 5 to 50 ppm by mass and a polyethyleneimine of 300 to 10,000 weight average molecular weight wherein the molar ratios of primary amino and tertiary amino based on the total quantity of amino are 30% or more and 15% or more, respectively, amounting to 5 to 30% by mass based on Zr so as to exhibit a pH value of 3 to 5. Further, there is provided a relevant method of chemical treatment. In the instance of steel material coating, especially electrodeposition coating, there can be realized excellent coating film adhesion, post-coating corrosion resistance and coating adhering-around property.

The invention relates to a low-temperature anti-fingerprint surface treatment agent for galvanized steel sheets and an environment-friendly surface-treated galvanized steel sheet obtained by using the surface treatment agent for surface treatment. The surface of the galvanized steel sheet of the present invention does not contain chromium and does not require high-temperature drying, and can form a surface treatment film under low-temperature drying conditions. The manufacturing process is environmentally friendly and low in energy consumption. The composition of organosilicon compound, titanium compound, vanadium compound and oxidized polyethylene particles (i.e. surface treatment agent) is coated on the surface of galvanized steel sheet, and then dried at a low temperature of 50-75°C, and the surface-treated galvanized steel sheet obtained is simultaneously It has excellent properties such as alkali resistance, solvent resistance, corrosion resistance, fingerprint resistance and coating adhesion.

The hot stamp molded body according to an embodiment of the present invention is provided with a base metal and a plated layer. The plated layer comprises, in order from the base metal to the surface,an interfacial layer, an intermediate layer, and an oxide layer. For the interfacial layer: the structure comprises at least a total of 99 area% of [alpha]Fe, Fe3Al and FeAl; the average Al content is in the range of 8.0 mass% to 32.5 mass%; the average Zn content is limited to being greater than the Zn content of the base metal and 5 mass% or less; the balance of the chemical components comprises Fe and impurities; and the average film thickness is at least 1.0 [mu]m. For the intermediate layer, the structure comprises at least a total of 99 area% Fe(Al, Zn)2 and Fe2(Al, Zn)5; the average Alcontent is 30-50 mass%; the average Zn content is 10-40 mass%; the balance of the chemical components comprises Fe and impurities; and the average film thickness is at least 5.0 [mu]m. For the oxidelayer, the average film thickness is 0.1-3.0 [mu]m.

A chromate-free coated metal sheet according to the present invention includes: a metal sheet; and a coating film α which contains an organic resin A as a film formation component and a flaky aluminum pigment C having a deactivation-treated surface on at least one surface of the metal sheet; wherein the thickness of the coating film α is in a range of 2 to 10 μm.

Provided is a rubber composition having coating affinity comprising mainly component (A), and components (B) and (C) below. Also provided are bellows for rail cars comprising a crosslinked body of therubber composition having coating affinity. The rubber composition having coating affinity is capable of exhibiting excellent performance as a material for forming rubber products (rubber products such as bellows for rail cars) that require rubber properties including tensile strength and breaking elongation, and durability as well as coating adhesion. (A) An ethylene-propylene-diene rubber (EPDM). (B) A non-hydrogenated liquid butadiene rubber having functional group reactable with an isocyanate group and / or a hydroxyl group. (C) An organic peroxide crosslinking agent.

Disclosed is an aluminum lid which is obtained by shaping a coated aluminum base, which has a coating film composed of an aqueous coating material, so that the coating film forms the inner surface of the lid.  The important characteristic of the aluminum lid is in that the coating film has a sea-island phase-separated structure wherein dispersion phases composed of a carboxyl group-containing acrylic resin are dispersed in a continuous phase composed of a base resin.  Consequently, the aluminum lid is free from the problems of conventional aluminum lids using conventional aqueous coating materials, and thus has excellent corrosion resistance, openability and formability.

A grain-oriented electrical steel sheet comprising: a base steel sheet; formed on the base sheet and made of amorphous SiO 2 the formed oxide film; and a tension insulating film formed on the oxide film. The base material steel sheet contains C: 0.085% or less, Si: 0.80 to 7.00%, Mn: 1.00% or less, acid-soluble Al: 0.065% or less, and Seq represented by S+0.406·Se: 0.050% in mass % Below, the remaining part: contains Fe and unavoidable impurities. Wherein, the half-value width (FWHM) of the cristobalite-type aluminum phosphate peak obtained by X-ray diffraction is: (i) when using a Co-Kα excitation source, the half-value width of the peak that appears at 2θ=24.8° (FWHM-Co ) is 2.5 degrees or less; or (ii) when using a Cu-Kα excitation source, the half-value width (FWHM-Cu) of the peak that appears at 2θ=21.3° is 2.1 degrees or less.

A method of manufacturing a grain-oriented electrical steel sheet involves controlling the degree of oxidation (PH2O / PH2) in a decarburization annealing step, controlling the mass ratio of MgO and Al2O3 within an annealing separator in an annealing separator application step, controlling the volume ratio of hydrogen in a mixed gas atmosphere to 50% or greater in a final annealing step, washing by using a solution to which an inhibitor has been added and then acid washing in an annealing separator removal step, controlling a mixed gas and the temperature and annealing in a smoothing step, and controlling the baking temperature and the heat treatment temperature in an insulating coating film formation step.

Disclosed is a light-absorbing member wherein a black lower layer containing nickel and / or cobalt and an upper layer containing an oxide of at least one element selected from aluminum, magnesium and zinc are formed on a surface containing zinc and / or aluminum. Also disclosed is a method for producing such a light-absorbing member. In this light-absorbing member, a coating film exhibiting high light absorption and excellent wear resistance is formed on a metal material surface which is composed of zinc or an aluminum alloy.

A method of manufacturing a grain-oriented electrical steel sheet involves controlling the degree of oxidation (PH2O / PH2) in a decarburization annealing step, controlling the mass ratio of MgO and Al2O3 within an annealing separator in an annealing separator application step, controlling the degree of oxidation in the case that hydrogen is present or controlling the dew point in the case that only an inert gas is present in a final annealing step, and controlling the baking temperature and the heat treatment temperature in an insulating coating film formation step.

This steel sheet for a container is provided with a steel sheet, an Ni plating layer formed on at least one surface of the steel sheet, and a chemically converted coating layer formed on the Ni plating layer, wherein the Ni plating layer contains 10-1000 mg / m2 of Ni in terms of the metallic Ni amount, and the chemically converted coating layer contains 5-30 mg / m2 of a Zr compound in terms of the metallic Zr amount. The average roughness Ra of the outermost surface of the chemically converted coating layer as determined by a scanning probe microscope is 10-100 nm, and when the amount of changein the yellowness index measured for one measurement point in the outermost surface of the chemically converted coating layer is defined as DELTAYI as represented in formula (2), the average value forthe DELTAYI absolute values obtained for a plurality of said measurement points included in a unit area of the outermost layer is 5.0 or less.

A roll suitable for use in hot-rolling apparatuses is provided at low cost, the roll comprising a roll base which has a high hardness and is less apt to suffer deformation damages such as dents and a coating film formed on the surface of the roll base by thermal spraying, the coating film having excellent adhesion, wear resistance, and steel-sheet-conveying properties. Also provided is a process for advantageously producing the roll. The surface of a roll base comprising a steel which contains 0.9-3.2 mass% Cr and has a carbon equivalent Ceq, defined by equation (1), of 0.45-1.65 mass% is coated by thermal spraying with a coating film constituted of a self-fluxing alloy containing hard ceramic particles. Thereafter, the coated roll base is subjected to fusing treatment in a non-oxidizing atmosphere to form a diffusion layer having a thickness of 30-200 µm between the coating film formed by thermal spraying and the roll base, and is then cooled or heat-treated. Thus, the roll base is made to have a hardness of 35-60 in terms of Shore hardness HS.

The present invention provides an electrical steel sheet with an insulating coating excellent in film adhesion of the insulating coating and a method for producing the same. An electrical steel sheet with an insulating coating according to the present invention has an insulating coating including an insulating tension coating layer A on at least one side, wherein the weight per unit area of ​​the insulating tension coating layer A is M, and the insulation tension is The tension exerted by coating layer A on the steel plate is set to σ A , the tension applied to the steel plate by the insulating tension coating layer of the unit area weight M / 2 from the surface in the insulating tension coating layer A is 0.80×σ A above. The method for manufacturing an electrical steel sheet with an insulating coating of the present invention includes: coating at least one surface of an electrical steel sheet with a coating-forming treatment liquid, and after the coating, the temperature range of 600°C to 700°C is heating at a heating rate of 100°C / sec or higher, and then sintering at 800°C or higher to form the insulating tension coating layer A, and the coating film forming treatment liquid contains Mg, Al, and Ca selected from phosphoric acid, boric acid, and silicic acid. , at least one of Ba, Sr, Zn, Ti, Nd, Mo, Cr, Ta, Cu, Mn salts, and colloidal silica.

This method of manufacturing a grain-oriented electrical steel sheet involves controlling the degree of oxidation (PH2O / PH2) in a decarburization annealing step, controlling the volume ratio of hydrogen in a mixed gas atmosphere to 50% or greater in a final annealing step, washing using a solution to which an inhibitor has been added in an annealing separator removal step, controlling a mixed gas and the temperature and annealing in a smoothing step, and controlling the baking temperature and the heat treatment temperature in an insulating coating film formation step.

The grain-oriented electrical steel plate is characterized by having a steel plate, an insulating film arranged on the steel plate, and spinel present fitted into the insulating film in a part on the steel plate that is at the interface of the steel plate and the insulating film, and by the amount of spinel being 5-50 mg / m2 per unit area of the surface of the steel plate.