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    Pressure modulated coating
    31.
    发明授权
    Pressure modulated coating 有权

    公开(公告)号：US09885110B2

    公开(公告)日：2018-02-06

    申请号：US14810767

    申请日：2015-07-28

    Applicant: United Technologies Corporation

    Inventor： Dmitri Novikov ,  Sergei F. Burlatsky ,  David Ulrich Furrer ,  David A. Litton

    IPC: C23C14/54 ,  C23C14/22 ,  C23C14/24 ,  F01D25/00

    CPC classification number: C23C14/54 ,  C23C14/228 ,  C23C14/243 ,  F01D25/005

    Abstract: A method or control strategy in a coating apparatus for use in a coating process can include controlling differential gas pressures among multiple selected localized zones in a coating chamber with respect to each other. The controlled differential gas pressure of the multiple selected localized zones is used to influence how a coating deposits on at least one component. The localized zones can be selected from a first localized zone around the component, a second localized zone adjacent the source of coating material, a third localized zone that diverges from the second localized zone toward the first localized zone, and a fourth localized zone that circumscribes at least the third localized zone.

    Fixture for vapor deposition system
    34.
    发明授权
    Fixture for vapor deposition system 有权

    公开(公告)号：US11276556B2

    公开(公告)日：2022-03-15

    申请号：US16836337

    申请日：2020-03-31

    Applicant: United Technologies Corporation

    Inventor： James W. Neal ,  Michael J. Maloney ,  Kevin W. Schlichting ,  David A. Litton

    IPC: H01J37/30 ,  G01K1/14 ,  G01K7/02 ,  G01K13/08 ,  C23C14/50 ,  C23C14/24 ,  C23C14/54 ,  G01N25/00 ,  H01J37/317 ,  C23C14/30

    Abstract: A vapor deposition system fixture comprises an arm, a rake, a crown gear bearing assembly, a workpiece holder, a thermocouple, and a contact ring assembly. The crown gear bearing assembly is attached to and rotatably engaged with the rake and includes stationary portion and rotating portions. The workpiece holder is configured to rotate with the rotating portion. The thermocouple is configured to rotate with the workpiece holder. The contact ring assembly comprises a housing, a cover, first and second rotating contact rings, and first and second stationary contact rings. The housing is attached to at least one of the arm and the rake. The first and second rotating contact rings are electrically connected to the thermocouple. The first and second stationary contact rings surround the rotating ring. The first and second stationary contact rings are configured to receive an electrical signal from the first and second rotating contact rings.

    THERMAL BARRIER COATING
    35.
    发明申请
    THERMAL BARRIER COATING 审中-公开

    公开(公告)号：US20200318229A1

    公开(公告)日：2020-10-08

    申请号：US16834244

    申请日：2020-03-30

    Applicant: United Technologies Corporation

    Inventor： Brian T. Hazel ,  David A. Litton ,  Kaylan M. Wessels

    IPC: C23C14/28 ,  C23C14/24 ,  C23C14/50

    Abstract: An electron beam vapor deposition process for depositing coatings comprises placing a source coating material in a crucible of a vapor deposition apparatus having a coating chamber; pressurizing said coating chamber from about 0.5 microbar to about 40 microbar; heating a work piece surface to a temperature of from 1800 degrees Fahrenheit to 2000 degrees Fahrenheit; energizing said source coating with an electron beam that delivers a power density to the material in the crucible forming a vapor cloud from said source coating material; and depositing said source coating material onto a surface of a work piece.

    Coating process using gas screen
    39.
    发明授权
    Coating process using gas screen 有权

    公开(公告)号：US10233533B2

    公开(公告)日：2019-03-19

    申请号：US15109884

    申请日：2015-01-07

    Applicant: United Technologies Corporation

    Inventor： Joseph A. DePalma ,  Mladen F. Trubelja ,  David A. Litton ,  Dmitri L. Novikov ,  Sergei F. Burlatsky

    IPC: C23C14/02 ,  C23C14/22 ,  C23C14/08 ,  C23C14/30 ,  C23C14/24

    Abstract: A method for use in a coating process includes pre-heating a substrate in the presence of a coating material and shielding the substrate during the pre-heating from premature deposition of the coating material by establishing a gas screen between the substrate and the coating material. An apparatus for use in a coating process includes a chamber, a crucible that is configured to hold a coating material in the chamber, an energy source operable to heat the interior of the chamber, a coating envelope situated with respect to the crucible, and at least one gas manifold located near the coating envelope. The at least one gas manifold is configured to provide a gas screen between the coating envelope and the crucible. A second manifold provides gas during a later coating deposition to compress a vapor plume of the coating material and focus the plume on the substrate to increase deposition rate.

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