international patents

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    Aluminum Alloy Composition and Method

    Editor’s Note: Although the Aluminum Association has certified hundreds of international aluminum alloys in each of the wrought and cast categories, aluminum metallurgists keep adding new recipes to meet the challenges required in their products, which span a range of applications—transportation, B&C, packaging, and various industrial and consumer products. The focused patent search presented hereafter reviews […]

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    Aluminum Remelting and Casthouse Strategies

    The aluminum casthouse is where aluminum wrought processing and shape casting begins, and there are many casthouse functions to consider. Scrap sorting, decoating of organic coatings on scrap, remelting, alloying, melt purification by refining and degassing, grain refining, melt transfer to casting station, casting by direct chill or other means, ingot heat treatment, and dross […]

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    Welding of Aluminum Alloys

    Experienced welders will tell you that, compared to welding steel, welding aluminum and its alloys is not difficult but different. Steel, being one of the common construction materials, most welders and myself included started by learning how to weld steel. As aluminum has especially gained market share in transportation, welding aluminum is challenged in various […]

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    Aluminum Casthouse Technology

     Editor’s Note: Various aspects of aluminum casthouse technology appear in almost every issue of Light Metal Age, no doubt because it is the first step and an important link in the wrought aluminum processing chain required for subsequent downstream processing and production of quality product. With no exception, the international patent survey presented here focuses […]

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    Primary Aluminum: Inert Anode and Wettable Cathode Technology in Aluminum Electrolysis

    Editor’s Note: Unlike aluminum’s sustainable advantage in recycling, primary aluminum production (which uses carbon anodes in the Hall-Héroult process), continues to be energy intensive and a greenhouse gas (GHG) producer. Ignoring the effect of CO2 generation in the coal/hydrocarbon power equation, the use of carbonaceous anodes in the smelting process generates GHGs as carbon is […]

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    Aluminum Extrusions: Process to Product

    US10486821 — JET ENGINE ANTI-ICING AND NOISE-ATTENUATING AIR INLETS — The Boeing Company (USA) — An embodiment of a jet engine air inlet providing anti-icing, and optionally, engine noise reduction, includes a rigid frame defining a gridwork of contiguous cells. A cap skin has an outer surface sealingly attached to an inner surface of the […]

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    Coil Coating Aluminum Sheet

    Editor’s Note: In coil coating of aluminum sheet, applied by roll coating or other means, the coated product is subsequently subjected to a short thermal, ultraviolet, and/or electromagnetic curing cycle for drying and curing of the coating. Coil coating of aluminum alloy sheet is forever evolving in terms of pretreatment and top coating compositions, especially […]

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    International Patents – Heat Treatment of Aluminum Alloys

    US10418142 — Aluminum Alloy Wire, Aluminum Alloy Stranded Wire, Covered Electric Wire, and Wire Harness — Furukawa Electric Co., Ltd. and Furukawa Automotive Systems Inc. (Japan) — The present disclosure provides an aluminum alloy wire or the like which can secure a high conductivity and a moderately low yield strength, and realize both a high […]

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    International Patents on Aluminum Anodizing

    US10335924 — METHOD AND BLASTING MEANS FOR PRODUCING A SATINIZED FINISH ON AN ALUMINUM SUBSTRATE — Vulkan Inox GmbH (Germany) — A method and a blasting material for producing a satinized surface on an aluminum substrate is provided. There is proposed a method for producing a satinized surface on an aluminum substrate, including the steps […]