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.

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.

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.

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.