Etching a substrate: processes – Gas phase etching of substrate – Etching inorganic substrate
Reexamination Certificate
2006-09-29
2008-09-30
Olsen, Allan (Department: 1792)
Etching a substrate: processes
Gas phase etching of substrate
Etching inorganic substrate
C216S077000, C216S096000, C216S100000, C134S017000, C134S019000, C134S055000
Reexamination Certificate
active
07429337
ABSTRACT:
The invention relates to a method for removing an area of a layer of a component consisting of metal or a metal compound. According to prior art, corrosion products of a component are removed in a first step by applying a molten mass or by heating in a voluminous powder bed. This requires high temperatures or a large amount of space. The inventive method for removing corrosion products of a component is characterized in that a cleaning agent is applied locally, which removes the corrosion products by means of a gaseous reaction product.
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Ralf Burgel, Tibor Koromzay, Riener Redecker; Refurbishment Procedures for Stationary Gas Turbine Blades; Life Assessment and Repair Technology For Combustion Turbine Hot Section Components; Proceedings of a International Conference, Phoenix, Arizona, USA, Apr. 17-19, 1990; pp. 323-334.
Czech Norbert
Jeutter Andre
Kempster Adrian
Reiche Ralph
Wilkenhöner Rolf
Diffusion Alloys Ltd.
Olsen Allan
Siemens Aktiengesellschaft
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