Shell Molding to Die Casting Flashcards
________ ______ is a mold cavity surrounded by only a very thin layer of refractory material.
Shell Molding
______ is the sand used in shell molding.
Zircon
Zircon sand is mixed with ______ to create shell molding
Resin
patters for shell molding have _____ __ for removing the molding
ejector pins
_____ ______ is used to support shell moldings during pouring.
Steel shot
the limitations of shell molding are
limited size and weight, metal pattern is expensive, limited core complexity
investment also means ______
Dip
lost wax casting also means
investment casting
The Jewelry industry uses ___ _______ casting process
Lost Wax
____ ____ is well established method of creating plastic parts in very large numbers
Injection Molding
Wax trees are dipped into _____
stucco or ceramic slurry
____ ___ is when the ceramic is separated from the metal trees.
shake out
Only ___ ____ defects are found in investment casting
Hot tears
______ _____ ____ uses polystyrene
lost foam casting
_____ ________ is a permanent mold casting method
die cast
die cast disadvantages
limited permeability and collapsibility
deficiencies for die casting are compensated by
high pressure
shot tube is the ________ in die casting
chamber
in die casting ____ or ____ is used to make pressure
injection piston, plunger
6 systems of die casting
Pressurized input, venting, clamping, ejector pin, core pulls, cooling system
