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Casting defects and their causes - Coggle Diagram
Casting defects and their causes
Distortion
surface roughness
Air bubbles
prevention
excessive rapid heating
prevention
under heating
prolonged heating
w/p ration
gold alloy temperature
Casting pressure
foreign bodies
molten alloy impact
porosity
caused by solidification shrinkage
caused by entrapped gas in mould
types
Microporosity
pinhole and gas inclusions
surface porosity
backpressure porosity