Method for welding zirconium alloy tube connector for explosion bulge test
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
- Publication Date
- 2009-05-20
- Estimated Expiration
- Not applicable Β· inactive patent
Smart Images
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Abstract
Description
Technical field
[0001] The invention relates to a welding method of a metal pipe joint, in particular to a welding method of a zirconium alloy pipe joint for blasting tests. Background technique
[0002] The nuclear zirconium alloy cladding tube must be subjected to a closed-end blasting test to verify its pressure resistance. figure 1 It is a simple schematic diagram of a blasting test device designed by a testing center in my country in the 1970s. One end of the test pipe is welded to death with an end plug, and the other end is welded to the coupling joint. The coupling joint is connected to the equipment through the thread for blasting test. The schematic diagram of the connection joint is as figure 2 . Argon arc welding is carried out after the pipe is connected with the outer end A of the coupling joint. The results of many experiments show that the success rate of this method is not high, and the pipe samples are mostly broken at the welding place between the pipe head a...