Turbulence during pouring of the molten metal is undesirable for which of the following reasons (two best answers):
A)it causes discoloration of the mold surfaces
B)it dissolves the binder used to hold together the sand mold
C)it increases erosion of the mold surfaces
D)it increases the formation of metallic oxides that can become entrapped during solidification
E)it increases the mold filling time
F)it increases total solidification time

Question

Quizplus · Accepted Answer

Turbulence can erode mold surfaces, leading to defects, and it can also increase the formation of metallic oxides, which can become trapped in the solidifying metal, causing defects.

Turbulence During Pouring of the Molten Metal Is Undesirable for Which