Silicon Bronze Filler Rod

[Farmerford]

Jeff:

I an glad you brought this up. I am reworking a 1931 Lodge and Shipley lathe and need to repair a broken boss in the apron. I was going to use high nickle rods, but then I decided to try to remember how to braze it with oxy/ac just for practice; but I think I wlll find some silicon bronze rods and give them a try; the result can't be much worse than with my rusty OA skills.

Weldermike: those welds look pretty good. Any hints on welding grey cast iron (in addition to the usual clean, clean, clean, preheat, and peen)?

 

[weldermike]

Jeff:

I an glad you brought this up. I am reworking a 1931 Lodge and Shipley lathe and need to repair a broken boss in the apron. I was going to use high nickle rods, but then I decided to try to remember how to braze it with oxy/ac just for practice; but I think I wlll find some silicon bronze rods and give them a try; the result can't be much worse than with my rusty OA skills.

Weldermike: those welds look pretty good. Any hints on welding grey cast iron (in addition to the usual clean, clean, clean, preheat, and peen)?

Nah bud, you basically nailed it, plus a slow cool. I usually wrap the work piece good in a welding blanket and let it sit a couple of hours.

 

[yomax4]

Silicon Bronze is / was used a lot for galvanized mig and tig. Works very well for welding brass to steel or Stainless, Copper, Cast etc. It's popular for it's high ductillity but will only yeild about 26K tensile. Popular on Galvanized mig due to lower temps, High fluidity and great travel speeds. On tig it would work well for the above mentioned chiller lines aagain because it is very ductile, Expands and contracts very well. Actually flows nicely like Stainless when tig welding. ( Brass Brazing Rod with added Silicon for fluidity )

 

[joebob]

Hi Jeff;
I worked in a shop years ago were a sil/bronz rod called everdure was used w/ a carbon rod in a stick welder to weld all kinds of sheet metal fittings from 24 ga. & up. Worked a treet.

 

[yomax4]

There are bronze stick rods out there now that don't require the carbon stick anymore. Man they used to do some primitive welding back in the day. I remember this set up and yes, it worked better than it sounds.