摘要:
A non-oriented electrical steel sheet according to an embodiment of the present invention is a non-oriented electrical steel sheet including a base metal steel sheet and a composite coating film that is formed on surfaces of the base metal steel sheet and includes Zn-containing phosphate and an organic resin, wherein the non-oriented electrical steel sheet contains crystalline aluminum phosphate showing diffraction lines belonging to ICDD No. 01-074-3256 when the composite coating film is measured by a wide-angle X-ray diffraction method.
摘要:
A method for conversion coating a magnesium-containing surface, the method comprising contacting the magnesium-containing surface with an ionic liquid compound under conditions that result in decomposition of the ionic liquid compound to produce a conversion coated magnesium-containing surface having a substantially improved corrosion resistance relative to the magnesium-containing surface before said conversion coating. Also described are the resulting conversion-coated magnesium-containing surface, as well as mechanical components and devices containing the conversion-coated magnesium-containing surface.
摘要:
An activating rinse for treating a substrate is disclosed. The activating rinse comprises a first component comprising a dispersion of divalent or trivalent metal phosphate particles having an average particle size that is not greater than 10 μm, and a second component comprising first and second copolymers. The first copolymer is formed by the polymerization of ethylene oxide, propylene oxide, or combinations thereof, wherein one end of the first copolymer is terminated by an amine group, a hydroxyl group, or an alkyl group. The second copolymer is formed by the polymerization of styrene and a second monomer containing at least one carboxylate group, anhydride group, or combinations thereof. The second monomer is present in an amount of less than 50 percent by weight of the total weight of the second component. Also disclosed are methods for treating a substrate with the activating rinse and substrates treated with the activating rinse.
摘要:
A method for conversion coating a magnesium-containing surface, the method comprising contacting the magnesium-containing surface with an ionic liquid compound under conditions that result in decomposition of the ionic liquid compound to produce a conversion coated magnesium-containing surface having a substantially improved corrosion resistance relative to the magnesium-containing surface before said conversion coating. Also described are the resulting conversion-coated magnesium-containing surface, as well as mechanical components and devices containing the conversion-coated magnesium-containing surface.
摘要:
A container, such as a metered dose inhaler, suitable for use with a propellant-based medicinal formulation, the container comprising one or more treated metal surfaces that come into contact with the medicinal formulation, wherein the one or more treated metal surfaces are characterized by an organic surface treatment compound covalently bonded to the metal surface through a reactive head group selected from either phosphonic acid or carboxylic acid and wherein the organic surface treatment compound is further characterized by an exposed, substantially non-reactive tail group disposed away from the metal surface. Also, metered dose inhaler canisters and valves with treated surfaces.
摘要:
A method of treating a surface of a metal foil or sheet to make the surface wettable. The method comprises obtaining a metal foil or sheet having an oil-coated surface to be treated, applying a solution of phosphoric acid in a polar, non-aqueous, water-free solvent evenly to the surface at a rate of application in a range of at least 10 mg/ft2, the phosphoric acid being contained in the solution at a concentration such that the phosphoric acid contacts the surface in an amount of 0.5 to 2.0 mg/ft2; and removing the solvent by either drying the surface or heating the foil or sheet at an elevated temperature above ambient to evaporate the oil from the surface to be treated with the proviso that the elevated temperature does not fall in the range between 130 to 240° C. The resulting foil has a wettable surface and can be used, for example, for coating with a layer of another material (e.g. polymer or adhesive) and achieve high peel strength.
摘要翻译:一种处理金属箔或片的表面以使表面可润湿的方法。 该方法包括获得具有待处理的油涂层表面的金属箔或片材,在极性,非水性,无水溶剂中将磷酸溶液以适用的速度均匀地施加到表面上, 至少10mg / ft 2,磷酸以浓度使得磷酸以0.5-2.0mg / ft 2的量与表面接触, SUP>; 并且通过干燥表面或者在高于环境温度的高温下加热箔或片来除去溶剂,以便从被处理表面蒸发油,条件是升高的温度不在130-240℃的范围内 所得到的箔具有可润湿表面,并且可以用于例如用另一种材料(例如聚合物或粘合剂)层涂覆并实现高剥离强度。
摘要:
A method of producing a protective inhibitor layer of moisture-generated corrosion for aluminum (Al) alloy metallization layers, particularly in semiconductor electronic devices, includes chemically treating the metallization layer in at least two steps using a mixture of concentrated nitric acid and trace phosphoric acid to produce a thin protective phosphate layer. Alternatively, the method may include dipping the electronic device at least once in a mixture of a polar organic solvent and phosphoric acid (H3PO4) or phosphate derivatives thereof in a low percentage amount (e.g., with a phosphate reactant such as orthophosphoric acid or even R—HxPOy, where R is an alkaline type of ion group or an alkyl radical). The thin film may be formed on top of a thin layer of native aluminum oxide hydrate Al2O3.xH2O.
摘要翻译:特别是在半导体电子器件中制备用于铝(Al)合金金属化层的湿气生成腐蚀保护抑制层的方法包括使用浓硝酸和痕量磷酸的混合物至少两步来对金属化层进行化学处理 以产生薄的保护性磷酸盐层。 或者,该方法可以包括以低百分比将电子设备浸入至极性有机溶剂和磷酸(H 3 PO 4)或其磷酸盐衍生物的混合物中一次(例如,使用磷酸盐反应物如正磷酸或甚至R -HxPOy,其中R是碱性离子基团或烷基基团)。 该薄膜可以形成在天然氧化铝水合物Al 2 O 3·xH 2 O薄层的顶部上。
摘要:
A precursor solution for the preparation of metal phosphates is provided. Two components are prepared in which the first is a metal salt dissolved in alcohol, and the second component is phosphorous pentoxide dissolved in alcohol. The two components are mixed and may be applied as a liquid coating to a variety of substrates. The coated substrate is then heated, causing removal of all other components and leaving a layer of pure metal phosphate.
摘要:
Brass-coated steel cord is provided with improved adhesive characteristics for use in tire making, by coating it with certain combinations of sulfur-containing accelerators and phosphate corrosion inhibitors.