Ask a Question

Which of the following plastic is used for making patterns?

← Prev Question Next Question →
+1 vote
in Foundry and Forging by (110k points)
Which of the following plastic is used for making patterns?

(a) Epoxy resins

(b) Thermoplastics

(c) Thermosetting plastics

(d) Polyvinyl chloride

I have been asked this question during an interview.

I want to ask this question from Pattern Materials in chapter Pattern Materials & Moulding Sand Tests of Foundry and Forging

1 Answer

+1 vote
by (736k points)
selected by
 
Best answer
The correct answer is (a) Epoxy resins

To explain: The making of a plastic pattern can be done by sand clay moulds or moulds made of plaster of Paris. Hence, the cold setting epoxy resins with suitable fillers are used. With a proper combination, it is possible to obtain a no shrink plastic material and as such double shrinkage allowances may not be required.

Related questions

We welcome you to Carrieradda QnA with open heart. Our small community of enthusiastic learners are very helpful and supportive. Here on this platform you can ask questions and receive answers from other members of the community. We also monitor posted questions and answers periodically to maintain the quality and integrity of the platform. Hope you will join our beautiful community

Categories

Powered by TalkJarvis
...