03-01-2011, 11:01 AM
Metal Casting
Create liquid metal - Melting
Combustion used to melt material
Electricity used to melt material
Create solid shape - Casting
Permanent mold casting
Semi Permanent mold casting
Consumable mold casting
Oxy-fuel Furnace
Uses a fuel gas such as propane, natural
gas or acetylene
Oxygen or atmosphere is blown in and
combined with fuel
Heat from combustion melts the charge
Resistance Furnace
A current passed through a material
resulting in ohmic heating
Radiation heats charge material
Some convection and conduction occurs
Induction Furnace
A current is passed through a water
cooled coil near or around the charge
Eddy currents are produced in the charge
material in response to the coil current
Heat is generated through ohmic heating
in the material
for more:
http://docs.googleviewer?a=v&q=cache:CQ_...0SrnzW1SgA