Airborne Radar Plate Slot Array Antenna Salt Bath Brazing Process

The antenna is one of the most important subassemblies in the radar essential to have. The planar slot array antenna can satisfy a radar screen's request for antenna high gain, low side lobe, small volume, and light weight etc. So it gets extensively applied in the airborne radar. The planar slot array antenna is the core of the airborne radar antenna system. Its prominent characteristics are many layers, cavities, thin wall and accuracy to have high request. The machine carries the production of the flat panel blind side antenna currently, usually controlling to process one each spare parts of by number, adopting the salt bath brazing craft to weld to take shape after assemble all spare parts again. But its salt bath brazing exist many problems, main body the melting salt composition adjusts and supports a craft now not perfect with weld fixtures to design not enough reasonable both side, in the very great degree check and supervision I produce an efficiency the batch quantity of the airborne radar. This text carried on the analysis and research for the problem of this both side.This text adjusts and supports the craft problem to the melting salt composition, to the salt bath aluminum brazing of carried on a research to the film mechanism, understand a brazing flux of to the film mechanism and function process; Go forward the improvement and the innovation research of go the brazing flux composition in this foundation, improve me a bath the brazing flux formulation of the aluminum brazing the salt. Strengthened the stability of the melting salt, reduce the melting salt maintenance frequency, simplify with the perfect craft rules distance.This text aims at to weld the fixtures design problem, expecting the fixtures use to result in before analyze from the theories of weld a craft problem. Pass to carry on the heat mechanics to respond to a limited dollar analysis to the fixtures and the antenna, confirmed an existent problem further, and make sure fixtures of excellent turn a principle. Carried on structure under the instruction of this principle of excellent turn to use the establishment of the standard with fixtures, can make thus that fixtures system be perfect.