Method for vacuum brazing a gas collecting box to a lower cup seat
By combining the use of positioning fixtures and measuring tools, the gas collection box and the lower cup seat are pre-assembled and pre-positioned by energy storage spot welding. Then, they are brazed together with the guide vane, which solves the technical problems of welding quality and position accuracy requirements and achieves efficient welding control and position accuracy assurance.
CN117259886BActive Publication Date: 2026-05-29AECC 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
- 2026-05-29
Smart Images
Figure CN117259886B_ABST
Abstract
The application discloses a method for vacuum brazing a gas collecting box and a lower cup seat on a guide vane, and belongs to the technical field of welding. The gas collecting box and the lower cup seat are first brazed together, and then the gas collecting box and the lower cup seat are integrally brazed on the guide vane, so that the unstable variable in the process control is reduced from two to one. In addition, an assembly positioning fixture and a measuring tool are designed and applied, so that the position degree between the lower cup seat and the vane can meet the design requirement, the technical problem that welding quality and position degree requirement need to be considered when the gas collecting box and the lower cup seat are vacuum brazed on a certain type of low-pressure turbine guide vane is solved, the smooth delivery of a certain type of gas turbine is ensured, and the technical reserve is enriched. The method has important engineering reference value for the machining and manufacturing of similar parts.
Need to check novelty before this filing date? Find Prior Art