UNIT -3 CASTING AND WELDING

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Presentation transcript:

UNIT -3 CASTING AND WELDING

MELTING FURNACES Cupola furnace – For cast iron Open heart furnace – For steel Crucible furnace – For non- ferrous metal 1.Pit type furnace 2. Coke Fired stationary furnace 3. Oil fired tilting furnace a)Pot furnace b)Electric Furnace 4.Direct arc furnace 5.Indirect arc furnace 6.Induction furnace

CUPOLA FURNACE

cupola is used to melt cast iron Advantages: Application: cupola is used to melt cast iron Advantages: Initial cost is comparatively lower than other type of furnaces It is simple in design It requires less floor area Operation and maintenance are simple It can be operated continuously for many hours