A method of vacuum brazing a center nozzle assembly
By combining argon arc welding and vacuum brazing, along with the design of a pre-reserved paste-like brazing filler metal groove and foil-like brazing filler metal, the technical challenges of welding quality and positional accuracy of the central nozzle assembly were solved, achieving a high-quality connection of the Z-shaped weld and ensuring the smooth delivery of the gas turbine.
CN117260052BActive Publication Date: 2026-06-02AECC AVIATION POWER CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- AECC AVIATION POWER CO LTD
- Filing Date
- 2023-10-31
- Publication Date
- 2026-06-02
Smart Images
Figure CN117260052B_ABST
Abstract
The application discloses a kind of methods for vacuum brazing center nozzle assembly, belong to welding technical field, the whole process route design in the present application, first realize the argon arc welding connection of front and rear two fuel ducts, then the front section of the above fuel duct assembly is welded to flow divider using argon arc welding process, then the front section air duct is welded to flow divider using argon arc welding process. Then, using one-time furnace vacuum brazing, simultaneously weld front and rear two air ducts and rear air duct and rear fuel duct, thereby avoiding part structure interference to the greatest extent, reducing brazing frequency in furnace, reducing the influence of unstable factors. The complete process provided by the application solves the technical problem of needing to consider welding quality and position requirement when vacuum brazing certain type of center nozzle assembly with Z-shaped weld, ensuring the smooth delivery of certain type of gas turbine, enriching related technical reserves, and having important engineering reference value for processing and manufacturing of similar parts.
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