B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
B23P 6/00 (2006.01) B23K 10/00 (2006.01) B23K 10/02 (2006.01) C23C 4/02 (2006.01) C23C 26/02 (2006.01) F01D 5/00 (2006.01) F01D 9/00 (2006.01) F01D 25/00 (2006.01)
Patent
CA 2445237
A stationary shroud (24) of a gas turbine engine made of a base metal is repaired by removing any damaged material from a flow-path region (40) of the stationary shroud (24) to leave an initially exposed base-metal flow-path surface (70); and applying a base-metal restoration (72) overlying the initially exposed flow-path surface (70). The base-metal restoration (72) is applied by furnishing a source of a structural material that is compatible with the base metal, and depositing the source of the structural material overlying the initially exposed base-metal flow-path surface (70) of the stationary shroud (24) by plasma transferred arc welding to form a repaired base-metal flow-path surface (76). An environmentally resistant rub coating (78) may be applied overlying the base-metal restoration (72).
Il est possible de réparer une enveloppe fixe (24) d'une turbine à gaz faite à base de métal en retirant tout matériau endommagé d'une zone de circuit d'écoulement (40) de l'enveloppe fixe (24) pour laisser une surface de circuit d'écoulement de métal de base initialement exposé (70); et en appliquant une restauration de métal de base (72) sur la surface de circuit d'écoulement initialement exposé (70). La restauration de métal de base (72) est appliquée en fournissant une source de matériau structural qui est compatible avec le métal de base, et en déposant la source de matériau structural sur la surface de circuit d'écoulement de métal de base initialement exposé (70) de l'enveloppe fixe (24) par soudage au plasma pour former une surface réparée de circuit d'écoulement de métal de base (76). Il est possible d'appliquer un revêtement en caoutchouc résistant (78) sur la restauration de métal de base (72).
Grossklaus Warren Davis Jr.
Miller Matthew Nicklus
Company General Electric
Craig Wilson And Company
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