It is a powder flux used for removing nonmetallic
inclusions (oxide layers, carbides and others)
in pure copper and copper-based alloys, drossing off
and covering surface under melting, decreasing the gas
pore defects in castings. The dry and powder-type dross
with low metallic content was obtained after cleaning
operation by this flux. Flux does not react with furnace
Cleaning, covering and drossing off melt
of pure copper and copper-based alloys under melting
procedure in copper scrap recycling. Cleaning pure
copper and copper-based alloys for wide range of casting
techniques (high pressure die casting, low pressure die
casting, gravity casting in permanent and sand molds,
others) and different types of furnaces.
Method of use
1. In case of copper scrap recycling coveringrefining
flux introduces in melt stepwise with
every part of batch addition. The finish treatment
is doing before melt pouring. Intensive stirring of
melt promotes full reaction.
2. In case of copper-based alloys cleaning for
casting covering-refining flux introduces in melt
by hand foundry plunger under melt surface.
Intensive stirring of melt promotes full reaction.
For all applications the temperature of treatment must
be above 850°С.