Torch casting:
A correctly adjusted burner with an approx. 5mm long flame (propane – oxygen)
- Propane = 1 bar
- Oxygen = approx. 2 to 3 bar.
Best results are achieved by using a burner with a mulit-oriface spray head.
The correct time to cast can be observed when the casting ingots collapse and the molt metal begins to move under the pressure of the flame.