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

A technology of radio frequency quadrupole field and brazing method, which is applied in the direction of welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of affecting the manufacturing level of RFQ accelerator cavity, low welding success rate, deformation of π die rod, etc. Achieve the effects of improving vacuum sealing performance, simplifying processing procedures, and increasing fluidity

Active Publication Date: 2016-03-09
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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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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  • Brazing Method of π Die Rod in Four-Wing RF Quadrupole Field Accelerator Cavity by Hydrogen Furnace
  • Brazing Method of π Die Rod in Four-Wing RF Quadrupole Field Accelerator Cavity by Hydrogen Furnace

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Embodiment Construction

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0020] Such as figure 1 with 2 As shown, in the four-wing type radio frequency quadrupole field accelerator cavity π mold rod hydrogen furnace brazing method, the upper end of the π mold rod 9 is provided with a stainless steel compensation ring 7, and the stainless steel compensation ring 7 is externally provided with a ceramic ring 2, π The upper end of the die rod 9 is also provided with a high temperature resistant spring washer 1, the π die rod 9 is provided with a fully threaded screw 5, the lower end of the fully threaded screw 5 is equipped with a stainless steel gasket 10 through a brass nut 6, and the π die rod 9 is welded Taper sleeve 8 is arranged, and its characteristic is to comprise the following ste...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/008B23K1/20
CPCB23K1/0008B23K1/008B23K1/20B23K2103/12
Inventor 孙国平谢春安李学敏牛小强张小奇王丰王文进徐大宇雷海亮
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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