The invention discloses a
brazing material for repairing an
anode steel claw and a preparation method thereof. The
brazing material comprises tubular
brazing filler metal and semi-ring-shaped brazingfiller
metal, a
corrosion section of an
anode steel claw head to be repaired is
cut off, a boss is machined at the lower end of the
anode steel claw head to be repaired, a groove is machined in the upper end of round steel replacing the
corrosion section, the tubular brazing
filler metal is placed in the groove, and the semi-ring-shaped brazing
filler metal is placed on the edge of the groove; thetubular brazing filler
metal is formed by folding a brazing filler
metal thin strip with the surface coated with a brazing flux layer for multiple times in the length direction to form short strip-shaped brazing filler metal with the brazing filler metal and brazing fluxes mutually alternately and then carrying out winding by taking a short edge as a shaft; the semi-ring-shaped brazing filler metal is formed by
cutting a brazing filler metal thin strip with the surface coated with a brazing flux layer into semi-ring-shaped brazing filler strips and then carrying out multi-layer overlaying; and the brazing filler metal thin strip comprises, by weight, 50-55 parts of
copper, 37.5-41 parts of
zinc, 3.6-4.3 parts of
manganese, 1.9-2.6 parts of
cobalt, 0.7-0.95 part of iron, 1.6-1.9 parts of
copper-plated
graphene and 0.1-0.3 part of microelements. The brazing material is specially used for repairing the anode steel claw, the resistivity of the repaired steel claw is remarkably reduced, and the repaired steel claw is good in
conductivity, high in strength, and long in service life.