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19 records (took 0.025 seconds)

    1.
    发明专利
    未知

    公开(公告)号：FR2649125A1

    公开(公告)日：1991-01-04

    申请号：FR9008410

    申请日：1990-07-03

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： ROUTSIS KOSTAS ,  PARKOS JOSEPH JOHN JR ,  FRELING MELVIN

    IPC: F01D5/28 ,  C25D5/14 ,  C25D15/02 ,  F01D5/20

    Abstract: An abrasive layer is formed on the tip portion of a turbine engine blade made of Ti alloy by (a) electroplating a 12-18 microns thick first Ni layer onto the blade tip; (b) electroplating a max. 1 micron thick second Ni layer; (c) electroplating a third Ni layer, immersing the tip in a slurry of electrically non-conductive particles in an electroplating soln. present on a membrane which is permeable to electric current and the soln., and then contg. electroplating of the third Ni layer; (d) electroplating a fourth Ni layer such that the combined thickness of the third and fourth layers corresponds to 50-95% of the mean dimension of the embedded particles, and (e) heat treating the blade to cause diffusion between the first Ni layer and the blade tip.

    3.
    发明专利
    未知

    公开(公告)号：IT1222432B

    公开(公告)日：1990-09-05

    申请号：IT2156687

    申请日：1987-08-03

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： LESHANE JEFFREY SCOTTO ,  ROUTSIS KOSTAS ,  WATSON CHARLES RAY

    IPC: B32B15/01 ,  C25D7/00 ,  C23C28/02 ,  C23C30/00 ,  F01D5/28 ,  F03B3/12 ,  C23C

    Abstract: A composite article includes a compressively stressed plating which provides increased static strength and fatigue life. In particular, a fan exit guide vane (1), made of a graphite fiber reinforced composite material and including a conductive plating (7), achieves a 380% increase in static load capability over an unplated composite vane and a low cycle fatigue life of over 1 million cycles through the application of a compressively stressed nickel plating (8) which produces a residual compressive stress state of between -5,000 and -15,000 psi.

    5.
    发明专利
    未知

    公开(公告)号：NO873227D0

    公开(公告)日：1987-08-03

    申请号：NO873227

    申请日：1987-08-03

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： LESHANE JEFFREY SCOTT ,  ROUTSIS KOSTAS ,  WATSON CHARLES RAY

    IPC: B32B15/01 ,  C25D7/00 ,  C23C28/02 ,  C23C30/00 ,  F01D5/28 ,  F03B3/12 ,  C25D

    Abstract: A composite article includes a compressively stressed plating which provides increased static strength and fatigue life. In particular, a fan exit guide vane (1), made of a graphite fiber reinforced composite material and including a conductive plating (7), achieves a 380% increase in static load capability over an unplated composite vane and a low cycle fatigue life of over 1 million cycles through the application of a compressively stressed nickel plating (8) which produces a residual compressive stress state of between -5,000 and -15,000 psi.

    Method for applying an abrasive layer to titanium alloy compressor airfoils
    6.
    发明专利
    Method for applying an abrasive layer to titanium alloy compressor airfoils 未知

    公开(公告)号：GB2234526B

    公开(公告)日：1993-11-10

    申请号：GB9014728

    申请日：1990-07-03

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： ROUTSIS KOSTAS ,  PARKOS JR JOSEPH JOHN ,  FRELING MELVIN

    IPC: F01D5/28 ,  C25D5/14 ,  C25D15/02 ,  F01D5/20 ,  C25D15/00

    Abstract: An abrasive layer is formed on the tip portion of a turbine engine blade made of Ti alloy by (a) electroplating a 12-18 microns thick first Ni layer onto the blade tip; (b) electroplating a max. 1 micron thick second Ni layer; (c) electroplating a third Ni layer, immersing the tip in a slurry of electrically non-conductive particles in an electroplating soln. present on a membrane which is permeable to electric current and the soln., and then contg. electroplating of the third Ni layer; (d) electroplating a fourth Ni layer such that the combined thickness of the third and fourth layers corresponds to 50-95% of the mean dimension of the embedded particles, and (e) heat treating the blade to cause diffusion between the first Ni layer and the blade tip.

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