Decided yesterday that is as home from the range early enough to make good use of the nice weather and mix a couple pots of alloy.
First up was a batch of copper alloy. I used 50 pounds range scrap, 4.5 pounds of formula 0 babbitt from Rotometals, a pound of grade 3 babbitt from Rotometals, and a single 3/4 pound bar of 30/70 body solder I have on hand. Works out to having roughly 3 percent each tin and antimony and .15 percent copper. Will be interesting to see how this stuff handles some speed and pressure.
Next I did 2 pots of 50 pounds range scrap and 5 pounds monotype. The monotype tends to give a thick, foamy dross that needs heat and lots of fluxing to mix in. I had to get it to around 750 degrees for a good mixing. This will yield roughly a 3/1 alloy.
Both of these should heat treat nicely.
First up was a batch of copper alloy. I used 50 pounds range scrap, 4.5 pounds of formula 0 babbitt from Rotometals, a pound of grade 3 babbitt from Rotometals, and a single 3/4 pound bar of 30/70 body solder I have on hand. Works out to having roughly 3 percent each tin and antimony and .15 percent copper. Will be interesting to see how this stuff handles some speed and pressure.
Next I did 2 pots of 50 pounds range scrap and 5 pounds monotype. The monotype tends to give a thick, foamy dross that needs heat and lots of fluxing to mix in. I had to get it to around 750 degrees for a good mixing. This will yield roughly a 3/1 alloy.
Both of these should heat treat nicely.