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Overspray shielding device and method

A technology of shielding device and overspray, which is applied in the direction of spraying device, molten spraying, metal material coating process, etc., and can solve problems such as damage

Inactive Publication Date: 2011-08-24
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During operation, parts of blades or vanes such as airfoils are in direct contact with the working fluid, which subjects these parts to high temperatures, thus causing damage to these parts

Method used

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  • Overspray shielding device and method

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Embodiment Construction

[0017] Various embodiments are described with reference to the drawings, wherein like reference numerals are used to refer to individual elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. Obviously, such embodiments may be practiced without these specific details.

[0018] The shielding device according to the invention can be used to protect the root of a blade or vane from overspray when the blade or vane is sprayed. It should therefore be appreciated that although the embodiments shown below refer specifically to blades used in the turbine section of a turbine engine, the invention is equally applicable to the painting of buckets.

[0019] Also, as used herein, "turbine" means any rotating mechanism that incorporates a turbine that adds or removes mechanical power from a continuous steady flow of fluid. A turbine operates by the act...

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PUM

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Abstract

The invention relates to an overspray shielding device and a method. The shielding device (2) for shielding a root (6) of a blade or a vane (4) for a spray coating process of the blade or the vane (4), comprising a removable insert (8) having a first member (14) with one or more projections (10) sized to sealingly fit into corresponding one or more grooves (12) over an exposed part of the root (6) of the blade or the vane (4), a second member (16) with one or more projections (10) sized to sealingly fit into corresponding one or more grooves (12) over a remaining part of the root (6) of the blade or the vane (4), wherein the first member (14) and the second member (16) are adapted to be coupled to sealingly fit on the blade or the vane (4).

Description

technical field [0001] The invention relates to a spraying process for turbine blades. In particular, the present invention relates to a shielding device and method for shielding the root of a blade or bucket from overspray during blade or bucket painting. Background technique [0002] Generally, in a turbomachine such as a gas turbine, each vane or blade has a root that engages a slot in a stator hub or rotor hub, and a blade that extends radially across a working fluid (gas) flow path. wing. The blade or vane also includes a platform between the root and the airfoil. During operation, parts of the blades or buckets, such as airfoils, are in direct contact with the working fluid, which subjects these parts to high temperatures, thus causing damage to these parts. [0003] Typically, protective coatings are applied to the airfoil sections of the blades or buckets that are exposed to the working fluid in order to improve their heat resistance and / or wear resistance. The b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B15/04B05B12/20
CPCC23C4/005B05B15/045C23C4/01B05B12/20
Inventor W·多恩B·基策罗D·基策罗F-J·拉德鲁
Owner SIEMENS AG