エイワ List of Products and Services

COBARION is a cobalt-based alloy developed by Professor Akihiko Chiba at Tohoku University’s Institute for Materials Research and manufactured by Aiwa Co., Ltd. It features a unique technology that suppresses nickel, which can cause metal allergies, achieving excellent strength, wear resistance, and corrosion resistance. This COBARION material has high added value, being less likely to cause allergies and gentle on the human body. It is suitable for artificial joints in the orthopedic field (such as hip joints, knee joints, elbow joints) and dental applications like orthodontic wires and denture bases. COBARION is alloyed using a vacuum melting method and is supplied to the market as round bars after undergoing various heat treatment processes. 【Features】 - Cobalt-chromium alloy with almost no nickel content - High ductility and excellent machinability - High mechanical strength, wear resistance, and corrosion resistance - Alloyed using a vacuum melting method - Supplied to the market as round bars For more details, please contact us or download the catalog.

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This is a scene where ingots are heated to over 1200°C in a furnace and then subjected to homogenization heat treatment, followed by free forging using a 600-ton hydraulic press.

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