Kobe Steel patented an aluminum alloy brazing sheet with specific compositions for core, sacrificial, and intermediate layers. Claim 1 details the materials and process for achieving a spreading area of the brazing filler material greater than 130 mm2 when heated at 577°C or higher for 2 to 3 minutes in a nitrogen atmosphere. GlobalData’s report on Kobe Steel gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Kobe Steel, Ore pre-treatment was a key innovation area identified from patents. Kobe Steel's grant share as of March 2024 was 44%. Grant share is based on the ratio of number of grants to total number of patents.
Patent granted for aluminum alloy brazing sheet with specific composition
A recently granted patent (Publication Number: US11969830B2) discloses an innovative aluminum alloy brazing sheet designed for improved brazing performance. The sheet comprises a core material, sacrificial material, brazing filler material, and an intermediate layer. The core material contains specific percentages of Si, Mn, Cu, Mg, and Al, while the sacrificial material and intermediate layer also have defined compositions. The patent highlights a unique heating process in a nitrogen atmosphere that results in a spreading area of the brazing filler material exceeding the original size, showcasing enhanced brazing capabilities.
Furthermore, the patent includes additional claims related to the composition of the aluminum alloy brazing sheet, specifying the presence of elements like Mg, Ti, Cr, and Zr in varying percentages. The disclosed sheet demonstrates high post-brazing strength and effective flux application for joining aluminum alloy plates. The innovative design and manufacturing process outlined in the patent aim to enhance the brazing efficiency and overall performance of aluminum alloy materials, catering to diverse industrial applications requiring reliable and robust brazed joints.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
