Silver soldering BS blades or Carbide?

[dallen]

(07-12-2012, 08:46 AM)Sunset Machine Wrote: Is it called Sil-fos or somesuch? Seems to me they use phosphorous in the alloy, making it self fluxing on COPPER. It's used in the refrigeration industry. Dis-similar metals are joined with regular silver solder and flux. I wouldn't expect the ribbon to work at all, but one never knows..

Sil Fos still needs flux when used on dissimilar metals.

a lot of gunsmiths use the ribbon because you can put it in between parts like sight bases and the barrel so when you heat it to melting point you don't end up with a solder line showing.

They also make a paste that you can use,

I use Safety Sil 45 from Harris welding supplys along with the proper flux it has a really high melting point and won't turn the carbide loose from machining heat, unless the bit gets hotter then 1650 F.

the Ribbon still has to have flux added to the joint.