Shell Molding to Die Casting

Question 1

________ ______ is a mold cavity surrounded by only a very thin layer of refractory material.

Answer 1

Shell Molding

Question 2

______ is the sand used in shell molding.

Answer 2

Zircon

Question 3

Zircon sand is mixed with ______ to create shell molding

Answer 3

Resin

Question 4

patters for shell molding have _____ __ for removing the molding

Answer 4

ejector pins

Question 5

_____ ______ is used to support shell moldings during pouring.

Answer 5

Steel shot

Question 6

the limitations of shell molding are

Answer 6

limited size and weight, metal pattern is expensive, limited core complexity

Question 7

investment also means ______

Answer 7

Dip

Question 8

lost wax casting also means

Answer 8

investment casting

Question 9

The Jewelry industry uses ___ _______ casting process

Answer 9

Lost Wax

Question 10

____ ____ is well established method of creating plastic parts in very large numbers

Answer 10

Injection Molding

Question 11

Wax trees are dipped into _____

Answer 11

stucco or ceramic slurry

Question 12

____ ___ is when the ceramic is separated from the metal trees.

Answer 12

shake out

Question 13

Only ___ ____ defects are found in investment casting

Answer 13

Hot tears

Question 14

______ _____ ____ uses polystyrene

Answer 14

lost foam casting

Question 15

_____ ________ is a permanent mold casting method

Answer 15

die cast

Question 16

die cast disadvantages

Answer 16

limited permeability and collapsibility

Question 17

deficiencies for die casting are compensated by

Answer 17

high pressure

Question 18

shot tube is the ________ in die casting

Answer 18

chamber

Question 19

in die casting ____ or ____ is used to make pressure

Answer 19

injection piston, plunger

Question 20

6 systems of die casting

Answer 20

Pressurized input, venting, clamping, ejector pin, core pulls, cooling system