basic bronze weld PP

2.  Bronze welding is a process used to join metals.
The edges of the metal are heated to a
temperature below their melting point and a
bronze alloy is simultaneously melted and caused
to flow over the edges and join with them.

3. Acetylene(colour coded red) is stored as a liquid
solution that lets off a gas vapour.
Oxygen(colour coded black) is stored as a gas under
pressure.
When these two gases combine and burn together
they reach a temperature of 3500 degrees Celsius.

5. Regulator controls the
pressure of the gases.
These are all pre set,
but check first
A Flint striker is used to
ignite the acetylene gas.

6. Brazing Flux forms a
gaseous shield to
prevent oxides from
forming while the metal
is heated.
Bronze alloy is melted
over the metals, joining
them.

7. Colour coded hose
fitted with a non return
valve carries gas from
tanks to welding torch.
Colour coded tanks
store the gas.

8. Welding torch controls the mix of gases and delivers
the heated flame.
Tip
Mixing Chamber
Oxygen Valve
Acetylene Valve
Handle
Hose Connections
L/H and R/H Thread

9.  Glasses
Shoes
 Apron
 No Jackets
 Maximum number of people in
welding bay: 4
 Hot materials to be stored under
bench.

10. 1. Knobs turned off
2. Turn Acetylene control on (red), light
the torch and adjust the valve until
black smoke disappears.
3. Bring in oxygen (black) till cone is
bright blue and sharp.
This is the neutral flame