METHODS OF FORMING DESIRED GEOMETRY ON SUPERALLOY PART USING POWDER MIXTURE OF LOW AND HIGH MELT TEMPERATURE SUPERALLOYS

    公开(公告)号:US20220372627A1

    公开(公告)日:2022-11-24

    申请号:US17816472

    申请日:2022-08-01

    摘要: Methods of forming a desired geometry at a location on a superalloy part are disclosed. The method may include directing particles of a powder mixture including a low melt temperature superalloy powder and a high melt temperature superalloy powder to the location on the superalloy part at a velocity sufficient to cause the superalloy powders to deform and to form a mechanical bond but not a metallurgical bond to the superalloy part. The directing of particles continues until the desired geometry is formed. Heat is applied to the powder mixture on the repair location. The heat causes the low melt temperature superalloy powder to melt, creating the metallurgical bonding at the location. Another method uses the same directing to form a preform for repairing the location on the part. The low melt temperature superalloy powder melts at less than 1287° C., and the high melt temperature superalloy powder melts at greater than 1287° C.

    Nonstick utensil and manufacturing method thereof

    公开(公告)号:US11357354B2

    公开(公告)日:2022-06-14

    申请号:US16748157

    申请日:2020-01-21

    摘要: A nonstick utensil and its method of manufacturing are presented. The nonstick utensil includes a utensil substrate and a nonstick layer covering an inner surface of the utensil substrate. The material of the nonstick layer includes black titanium dioxide. An inner surface of a substrate of the nonstick utensil is covered with a material having black titanium dioxide applied by hot spraying, cold spraying or plasma spraying, so that a black titanium dioxide nonstick layer is formed. Compared to the prior art, instead of using a coating material, a nonstick layer having black titanium dioxide on a surface of a substrate is provided, having nonstick properties due to the low surface energy characteristic of black titanium dioxide.