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    COATING METHOD OF HEAT SHIELD FILM
    1.
    发明专利
    COATING METHOD OF HEAT SHIELD FILM 失效

    公开(公告)号：JP2000192256A

    公开(公告)日：2000-07-11

    申请号：JP32930699

    申请日：1999-11-19

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BURNS STEVEN M ,  MEEHAN ROBERT J

    IPC: F02C7/00 ,  C23C14/02 ,  C23C14/08 ,  C23C28/00

    Abstract: PROBLEM TO BE SOLVED: To provide a coating method of a heat shield film having durability. SOLUTION: For coating a heat shield film 4, at first, a metallic bonding film 6 composed of MCrAlY with Fe, Ni, Co or a mixture of Ni and Co as M is laminated on a substrate of a superalloy. Unrequired oxides and contaminants in the metallic bonding film composed of MCrAlY are removed by an ionized gas flow cleaning method such as reverse plasma arc cleaning. After the formation of an aluminum oxide thin film 8 having adhesive properties on the metallic bonding film composed of MCrAlY, a ceramic layer 10 is formed on the aluminum oxide thin film by a physical vapor deposition method, and its structure is formed into the columnar one.

    FIXTURE
    2.
    发明专利
    FIXTURE 失效

    公开(公告)号：JPH11350135A

    公开(公告)日：1999-12-21

    申请号：JP12244499

    申请日：1999-04-28

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BURNS STEVEN M ,  VARSELL RICHARD W

    IPC: B05C13/02 ,  C23C14/50 ,  C25D17/06

    Abstract: PROBLEM TO BE SOLVED: To provide a fixture of a rotisserie type usable for coating of various kinds of workpieces. SOLUTION: This fixture 10 includes a supporting structural part 12 rotating about the first shaft during coating and plural cassette members 14 disposed in the supporting structural part 12. The respective cassette members 14 hold the plural workpieces to be coated and are disposed in the supporting structural part 12 in such a manner that the cassette members 14 rotate about the axis parallel with the first shaft. The respective workpieces under the coating are rotated about their major axes by this constitution, by which the uniformly dispersed films substantially free from unequalness are formed on the surfaces of the workpieces to be coated.

    PREHEATING METHOD FOR MEMBER AND COATING DEVICE
    3.
    发明专利
    PREHEATING METHOD FOR MEMBER AND COATING DEVICE 失效

    公开(公告)号：JPH11315369A

    公开(公告)日：1999-11-16

    申请号：JP35876398

    申请日：1998-12-17

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BURNS STEVEN M

    IPC: C23C14/30 ,  C23C8/10 ,  C23C14/02

    Abstract: PROBLEM TO BE SOLVED: To reduce and control the forming rate of an oxide layer (thermally grown oxide, TGO) and the final thickness of the TGO and to satisfactorily stick a top coat to a member. SOLUTION: This is a method for reducing the formation of surface oxide in preheating treatment for a member having a face contg. aluminum in a vacuum atmosphere executed before the application of ceramic coating. In this method, by injecting an inert gas or a nonreactive gas into the vicinity of the member to be applied with coating in a coating device in the process of the preheating, the oxidation of the member is reduced. For the injection of the gas, a housing device or a nozzle device partially surrounding the member is used.

    ENHANCED SURFACE PREPARATION PROCESS FOR APPLICATION OF CERAMIC COATING
    4.
    发明专利
    ENHANCED SURFACE PREPARATION PROCESS FOR APPLICATION OF CERAMIC COATING 审中-公开

    公开(公告)号：JP2002275658A

    公开(公告)日：2002-09-25

    申请号：JP2001391678

    申请日：2001-12-25

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BURNS STEVEN M ,  MARSZAL DEAN N

    IPC: F01D5/28 ,  C23C4/02 ,  C23C4/08 ,  C23C4/10 ,  C23C14/02 ,  C23C28/00 ,  C23C30/00

    Abstract: PROBLEM TO BE SOLVED: To provide a method for improving the adherence of a ceramic coating to a surface, and prolonging the service life of the coating under sever conditions at elevated temperatures. SOLUTION: A metallic surface is formed so as to be subjected to the ceramic coating. A part of the metallic surface is removed by grinding treatment of gradually reducing its strength. The surface of a metal or an intermetallic compound, particularly, a bond coated surface is formed so as to be subjected to the ceramic coating by using a method including mechanical grinding at least in two steps containing a fist step and a second step which is less aggressive than the first step. Alternatively, a single step in which the aggressiveness of the grinding in the start of the step is higher than that of the final grinding can be used. The grinding suing ceramic particles is a suitable method. The ceramic coating formed on the surface in this way exhibits an improved service life at elevated temperatures.

    5.
    发明专利
    未知

    公开(公告)号：DE69709306D1

    公开(公告)日：2002-01-31

    申请号：DE69709306

    申请日：1997-10-16

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： BURNS STEVEN M ,  NEHEZ WILLIAM A

    IPC: B05D1/40 ,  B05C11/08 ,  C23C14/04 ,  C23C14/50

    Abstract: The present invention relates to an apparatus for simultaneously coating a plurality of workpieces (54). The apparatus includes a module (10) fixture having a plurality of bushing (48) and spindle (64) arrangements for supporting the workpieces to be coated. The bushing and spindle arrangements allow each workpiece to rotate about its longitudinal axis (122) and tilt along an axis (14) which intersects the rotational axis of the fixture. By providing such a bushing and spindle arrangement, it is possible to coat surfaces of the workpiece which are substantially perpendicular to other surfaces of the workpiece. A process for simultaneously coating the workpieces is also described. The process comprises the steps of mounting a plurality of workpieces to the fixture so that the workpieces can roll about their longitudinal axes and so that the workpieces are positioned at an angle with respect to the rotational axis of the fixture, rotating the fixture about its rotational axis so as to cause said workpieces to roll, and exposing the workpieces to a coating material as the fixture is being rotated.

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