Machining technology method of complex special-shaped foil-shaped brazing filler metal for waveguide antenna
A processing technology and waveguide antenna technology, which is applied in the field of processing technology of complex special-shaped foil-shaped solder for waveguide antennas, and can solve problems such as inability to process miscellaneous and dense foil-shaped solder
Active Publication Date: 2018-06-29
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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[0003] In view of the above analysis, the present invention provides a processing method for complex special-shaped foil-shaped solder for waveguide antennas, aiming to solve the problem that the prior art cannot process miscellaneous and dense foil-shaped solder
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[0044] This method is used to domestically process the complex special-shaped foil-shaped brazing filler metal of an antenna. Typical Dimensions of Parts The minimum waveguide slot width is 0.5mm, and the minimum narrow rib wall width is 0.5mm. Among them, the complex special-shaped foil-shaped solder needs to be made into figure 1 The shape of the perimeter of the gap is shown.
[0045] Foil-shaped solder is easy to deform and has poor rigidity. In order to ensure accuracy, a low-stress processing scheme is used to avoid deformation. Considering the shape of the complex special-shaped foil-shaped solder, it should be consistent with the waveguide cavity and the periphery of the gap. A flattening process is added before processing to ensure the flatness of the raw material and the dimensional accuracy. Cut Al-Si-Mg foil-shaped solder with a thickness of 0.05mm into several pieces of 140×280, use a flat plate to flatten the solder in an oven, heat at 100°C, and hold for 30 ...
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Abstract
The invention relates to a machining technology method of a complex special-shaped foil-shaped brazing filler metal for a waveguide antenna. The method is characterized in that a target shape to be machined is divided according to the shape rule, the foil-shaped brazing filler metal is correspondingly machined according to the division result, and finally a whole with the same shape as the targetshape is formed. According to the machining technology method of the complex special-shaped foil-shaped brazing filler metal for the waveguide antenna, machining of various complex special-shaped foil-shaped brazing filler metal is realized, furthermore, successful vacuum brazing of a plurality of waveguide antennas is successfully realized, and the performance requirement of the antennas is met;and an antenna product is subjected to ultrasonic C-scanning detection, the penetration rate of the welding bead can meet design requirements, and use requirements of waveguide antenna vacuum brazingare met.
Description
technical field [0001] The invention relates to the technical field of processing foil-shaped solder, in particular to a processing method for complicated and special-shaped foil-shaped solder for waveguide antennas. Background technique [0002] As the application environment becomes more and more complex, more and more waveguide antennas are used in missile-borne radar seekers. Due to the realization of multiple functions, the structure of the internal waveguide cavity is complex, and the volume is getting smaller and smaller. The antenna is generally composed of 6-9 layers of parts. It is welded, and the weld seam is complex and dense, with a length of tens of thousands of millimeters. Generally, there are more than a thousand solder seams around the waveguide gap and more than a thousand narrow solder seams that need to be welded. For the brazing of waveguide antennas, ensuring the isolation between different waveguide cavities is the basic requirement to ensure electric...
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IPC IPC(8): B23K35/40B23K1/008
CPCB23K1/008B23K35/40
Inventor 王志鹏杨文静闫海龙王军肖爱群马长宝张立伟
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST