Inherent Discontinuities - Cold Shuts

Question 1

Location of cold shuts:

Answer 1

surface and subsurface

Question 2

Characteristics of cold shuts:

Answer 2

smooth indentations on the cast surface and may resemble a forging lap

Question 3

When are cold shuts produced?

Answer 3

during the casting of molten metal

Question 4

What are cold shuts a result of?

Answer 4

splashing, surging, interrupted pouring or the meeting or two streams of metal coming from different directions or any other factor that prevents complete fusion

Question 5

Where do cold shuts typically occur in a casting?

Answer 5

by the gate

Question 6

Which material is most prone to cold shuts?

Answer 6

magnesium, because the speed in which it sets

Question 7

Appearance of cold shuts:

Answer 7

smooth, regular, continuous or intermittent lines

Question 8

Liquid penetrants used to test nickel based alloys, stainless steels and titanium should not contain more than _____% sulfur or chlorine

Answer 8

1