Novel brazing flux capable of enhancing radiation resistance and low temperature resistance of welding spots and application of novel brazing flux

The invention discloses a novel brazing flux capable of enhancing radiation resistance and low temperature resistance of a welding spot and application of the novel brazing flux, and belongs to the technical field of brazing materials of metal materials. The organic mixture is prepared from the following components in percentage by mass: 10%-30% of E-51 epoxy resin, 10%-20% of F-51B high-temperature-resistant flame-retardant thermosetting phenolic resin, 10%-20% of F-52B high-temperature-resistant flame-retardant thermosetting phenolic resin, 8%-20% of resorcinol and the balance of phthalic anhydride; the inorganic mixture is prepared from the following components in percentage by mass: 4 to 13 percent of KBF4, 5 to 12 percent of KF, 5 to 10 percent of Bi2O3 and the balance of B2O3. The anti-radiation capability of the welding spot can be enhanced, and the welding spot can tolerate'high and low temperature heat circulation '. 一种可增强焊点抗辐射耐低温能力的新型钎剂及其应用，属于金属材料类的钎焊材料技术领域.其特征在于8%～25%的有机混合物，余量为无机混合物；所述有机混合物按质量百分数配比