Hi all.....not brazed anything for maybe 15+ years.....used to do quite a bit of brazing back then with oxy/acetylene but I dont have access to it now.
So today I tried a plumbers type propane torch fed with a hose from a good sized propane gas tank.
The torch has a valve to cut or increase the gas flow.
Today I needed to braze a brass compressed air fitting to a copper tube union....the rods I dont know the type but were great last time I used them with the oxy accet set up.
I have the same flux from all those years ago.
Was not sure if it would work but watched some vids last night on youtube....the guy dis a good job with what looked the same kit as me.
I seemed to be able to get the work piece hot....but for some reason the rods struggled to melt...the braze seemed to tale to the thinner copper pipe....but did not want to take to the brass....the brass got hot enough to melt as it did and was useless.but I had spares nothing I did would allow me to braze to the brass union.
Done the same thing many times in the past with my oxy/accet setup.
Any ideas guys....why was the rod reluctant to melt and when it did would not flow onto the brass but would on steel and the copper.
The work piece was sat on a brick.
So today I tried a plumbers type propane torch fed with a hose from a good sized propane gas tank.
The torch has a valve to cut or increase the gas flow.
Today I needed to braze a brass compressed air fitting to a copper tube union....the rods I dont know the type but were great last time I used them with the oxy accet set up.
I have the same flux from all those years ago.
Was not sure if it would work but watched some vids last night on youtube....the guy dis a good job with what looked the same kit as me.
I seemed to be able to get the work piece hot....but for some reason the rods struggled to melt...the braze seemed to tale to the thinner copper pipe....but did not want to take to the brass....the brass got hot enough to melt as it did and was useless.but I had spares nothing I did would allow me to braze to the brass union.
Done the same thing many times in the past with my oxy/accet setup.
Any ideas guys....why was the rod reluctant to melt and when it did would not flow onto the brass but would on steel and the copper.
The work piece was sat on a brick.