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Author Question: What is meant by cryogenic flash removal? What will be an ideal ... (Read 16 times)

joe

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on: Aug 19, 2018
What is meant by cryogenic flash removal?
 
  What will be an ideal response?

Question 2

What is the major advantage of a flash-type mold-closure system in compression molding? What are the disadvantages?
 
  What will be an ideal response?


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essyface1

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Reply #1 on: Aug 19, 2018
Answer to Question 1

Cryogenic flash removal simply means that the parts are frozen when the flash is removed. This freezing makes the plastic brittle and, because the flash is thin, increases the likelihood that the flash can be broken off the parts when they are tumbled together.

Answer to Question 2

The flash type closure system is much simpler than the positive and semipositive systems. Therefore, mold costs are lower. However, the part dimensions are less well defined and, of course, flash must always be removed from the parts.


joe

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Reply #2 on: Aug 19, 2018
Both answers were spot on, thank you once again


essyface1

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Reply #3 on: Aug 19, 2018
Great! Please up vote :D


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