Brazing Method of π Die Rod in Four-Wing RF Quadrupole Field Accelerator Cavity by Hydrogen Furnace

Abstract

The invention relates to the novel technical field of manufacturing of a four-vane radio frequency quadrupole field accelerator cavity pi mode rod, in particular to a four-vane radio frequency quadrupole field accelerator cavity pi mode rod hydrogen furnace brazing method. According to the method, brazing parts are positioned during brazing so that the positions of the parts and welding clearance required by brazing can be ensured; after the novel welding method is adopted, welding success rate is increased greatly, machining processes are simplified, assembly is convenient and fast, stability performance is high, the size is small, deformation is slight, the vacuum degree is high, and the vacuum sealing performance of the welded four-vane radio frequency quadrupole field (RFQ) accelerator cavity pi mode rod is improved; a welding clamp is simple in structure, convenient to assemble and high in positioning precision, it is guaranteed that the welding surfaces of pi mode rods are attached to one another, and assembly clearance is smaller than 0.02 mm; enough welding flux is guaranteed, and mobility is improved. In this way, the mobility of molten brazing filler metal is optimal, and then complete welding of the welding surfaces is achieved and the high-vacuum-degree requirement after welding is met.

Description

technical field [0001] The invention relates to the technical field of new technology for manufacturing a π die rod of a four-wing radio frequency quadrupole field accelerator cavity, in particular to a hydrogen furnace brazing method for a π die rod of a four wing radio frequency quadrupole field accelerator cavity. Background technique [0002] The accelerator cavity is the core component of the Radio Frequency Quadrupole (RFQ) linear accelerator, and its manufacturing level is one of the keys that affect the performance parameters of the accelerator. A certain number of π-mode rods are welded in the horizontal and vertical directions of the four wings to stabilize the high-frequency structure, which is particularly important for the stability of the electric field in the cavity, and the reliability of the welding quality is very important for the accelerator. Therefore, Whether the welding quality of the RFQ accelerator cavity π-mode rod can be guaranteed through a good w...

AI Technical Summary

Problems solved by technology

At present, when conventional brazing methods are used to weld the π die rod of the RFQ accelerator cavity, deformation of the π die rod is likely to occur, and the welding success rate is not high, which directly affects the manufacturing level of the RFQ accelerator cavity and easily produces waste products

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