METHOD TO STRIP AND RECOAT EROSION COATINGS APPLIED TO FAN BLADES AND STRUCTURAL GUIDE VANES

    公开(公告)号:US20190022698A1

    公开(公告)日:2019-01-24

    申请号:US15656275

    申请日:2017-07-21

    Abstract: A method of repairing an erosion coating coupled to a substrate, wherein the coating comprises an anodization layer on the substrate, a bond primer layer on the anodization layer, a corrosion-resistant primer on the bond primer, and an erosion coating on the corrosion-resistant primer. The method comprises abrading an erosion coating; abrading a corrosion-resistant primer; creating an abraded surface comprising a bond primer over an anodization layer coupled to the substrate, applying a sol-gel adhesion promoter layer to said abraded surface; applying a corrosion-resistant layer over the sol-gel adhesion promoter layer; and applying an erosion coating layer over the corrosion-resistant layer.

    METHOD TO STRIP AND RECOAT EROSION COATINGS APPLIED TO FAN BLADES AND STRUCTURAL GUIDE VANES

    公开(公告)号:US20190024256A1

    公开(公告)日:2019-01-24

    申请号:US15656262

    申请日:2017-07-21

    Abstract: A method of repairing an erosion coating coupled to a substrate, wherein the coating comprises an anodization layer on the substrate, a bond primer layer on the anodization layer, a corrosion-resistant primer on the bond primer, and an erosion coating on the corrosion-resistant primer the method comprising abrading an erosion coating; abrading a corrosion-resistant primer; creating an abraded surface comprising a bond primer over an anodization layer coupled to the substrate, chemically etching the anodization layer; abrading the bond primer; applying an anodization layer to the substrate; applying a bond primer layer over the anodization layer; applying a corrosion-resistant layer over the bond primer layer; and applying an erosion coating layer over the corrosion-resistant layer.

    SEPARATING ADHESIVELY BONDED LAP JOINTS
    4.
    发明申请

    公开(公告)号:US20190061073A1

    公开(公告)日:2019-02-28

    申请号:US15687121

    申请日:2017-08-25

    Abstract: A method of separating a lap joint assembly may include positioning a fluid emitter relative to a lap joint assembly. The lap joint assembly may include an adhesive lap joint between a first component and a second component. The method may further include emitting a cryogenic fluid stream from the fluid emitter at the adhesive lap joint. Positioning the fluid emitter and emitting the cryogenic fluid stream may include orienting the fluid emitter such that an angle between the cryogenic fluid stream and the adhesive lap joint is less than 45 degrees. The first component may be a sheath and the second component may be an airfoil body.

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