Ammonium chloride, hydrochloric acid, and hydroxylamine hydrochloride should be used as fluxes for brazing of copper. All the investigated chemical compounds improve the technological properties effluxes, containing 10-25 percent of zinc chloride. The results of the investigations can be used for sys-...
This is often achieved with a flux; a mixture of complex chemical compounds that becomes molten during the brazing process and forms a layer over the joint, reacting with oxides and removing them from the bonding surfaces. Generally speaking, fluxes are not required in reducing atmosphere or ...
钎剂应满足: (1)足够的去除母材及钎料表面氧化物的能力 (2)熔化温度及最低活性温度稍低于钎料的熔化温度 (3)在钎焊温度下具有足够的润湿能力 Brazing fluxed are generally made of borax(硼砂), boric acid(硼酸), borates(硼酸盐), fluorides(氟化物), and chlorides(氯化物). The fluxes should be ...
In the diffusion affected zone (DAZ), B is diffused from the interlayer material into the BM and hard boride phases are formed due to the chemical reaction between B and alloying elements, such as Cr, Mo, and Ni. This area contains boride precipitates. Studies on the diffusion bonding of ...