Flux for brazing difficult to wet metallic materials

Details Flux for brazing difficult to wet metallic materials Flux for brazing difficult to wet metallic materials

B - Operations, Transporting

23

K

B23K 35/363 (2006.01) B23K 35/36 (2006.01) B23K 35/02 (2006.01)

Patent

CA 2308743

The invention relates to a flux based on inorganic boron and/or halogen compounds for brazing difficult to wet metallic materials with silver- and copper-based solders, which is characterised in that it contains, as an activating addition, based on the total amount of the flux, 0.01-10 wt.% of elemental boron and 0.01-10 wt.% of at least one of the elements Mo, W, Mn, Co, Ni, Pd, Cu or Ag in the form of elements, alloys or compounds. 11. The activating addition brings about a substantial increase in the wettability by the solder, particularly in the case of difficult to wet parent materials.

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