Fixturing for thermal spray coating of gas turbine components

Patent metadata

Field	Value
Publication number	US-2016010197-A1
Application number	US-201414772180-A
Country	US
Kind code	A1
Filing date	Mar 6, 2014
Priority date	Mar 6, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

A fixture assembly includes a standoff, a backplate and a spray coating shield attached to a support.

First claim

What is claimed is:

1 . A holder assembly, comprising:
a standoff; a backplate positioned relative to the standoff; and a spray coating shield positioned relative to the standoff spaced from said backplate.

2 . The assembly as recited in claim 1 , wherein the backplate includes a multiple of apertures.

3 . The assembly as recited in claim 1 , wherein the backplate includes a multiple of apertures that correspond with apertures through a workpiece.

4 . The assembly as recited in claim 1 , wherein the backplate includes a multiple of apertures that correspond with studs that extend from a workpiece.

5 . The assembly as recited in claim 1 , wherein the spray coating shield is generally parallel to the backplate.

6 . The assembly as recited in claim 5 , wherein the spray coating shield is spaced a predetermined distance from a workpiece to mask an shadowed surface area of the workpiece with a shadow therefrom.

7 . The assembly as recited in claim 1 , wherein the spray coating shield is wedge shaped.

8 . The assembly as recited in claim 7 , wherein the spray coating shield is spaced a predetermined distance from a workpiece to mask a shadowed surface area of the workpiece with a shadow therefrom.

9 . The assembly as recited in claim 1 , wherein the spray coating shield is arranged radially and axially relative to the base plate.

10 . The assembly as recited in claim 1 , wherein the spray coating shield is arranged radially and axially relative to the backplate.

11 . The assembly as recited in claim 1 , wherein the spray coating shield is removable.

12 . The assembly as recited in claim 1 , further comprising a support, the standoff supported by the support.

13 . The assembly as recited in claim 12 , wherein the standoff is a fixed ring mounted to a baseplate.

14 . A method of spraying a multiple of liner panels of a gas turbine engine comprising:
mounting a multiple of holder assemblies to respectively support a multiple of liner panels not oriented as in the gas turbine engine

15 . The method as recited in claim 14 , further comprising:
rotating the multiple of holder assemblies about an axis while spraying the multiple of liner panels with a thermal barrier coating.

16 . The method as recited in claim 14 , further comprising:
shadow masking the multiple of liner panels with a spray coating shield.

17 . The method as recited in claim 15 , further comprising:
spraying the multiple of liner panels with a bond coat of a thermal barrier coating at an angle with respect to the liner panel to coat each liner panel.

18 . The method as recited in claim 17 , further comprising:
spraying the bond coat of the multiple of liner panels with a top coat of the thermal barrier coating at an angle with respect to the liner panel to shadow mask shadowed surface area of each liner panel with a spray coating shield.

19 . The method as recited in claim 15 , further comprising:
spraying the multiple of liner panels with a bond coat of a thermal barrier coating to coat each liner panel.

20 . The method as recited in claim 19 , further comprising:
installing a spray coating shield with respect to each of the multiple of liner panels; and spraying the bond coat of the multiple of liner panels with a top coat of the thermal barrier coating at an angle with respect to the liner panel to shadow mask an shadowed surface area of each liner panel with a spray coating shield.

Assignees

• United Technologies Corp

Inventors

• Strock Christopher W

Classifications

• C23C4/005 Primary

  Chemistry & Metallurgy · mapped topic

• F02C7/20 Primary

  Mounting or supporting of plant; Accommodating heat expansion or creep · CPC title

• F05D2240/90

  Mounting on supporting structures or systems · CPC title

• C23C4/01 Primary

  Selective coating, e.g. pattern coating, without pre-treatment of the material to be coated · CPC title

• C23C28/3455

  with a refractory ceramic layer, e.g. refractory metal oxide, ZrO2, rare earth oxides or a thermal barrier system comprising at least one refractory oxide layer · CPC title