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What is the minimum air pressure required in the blow molding process?

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in Casting-Forming-Welding II by (119k points)
What is the minimum air pressure required in the blow molding process?

(a) 350 kPa

(b) 400 kPa

(c) 450 kPa

(d) 500 kPa

The question was posed to me in examination.

The doubt is from Blow Moulding and Thermoforming in chapter Moulding with Polymers of Casting-Forming-Welding II

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The correct option is (b) 400 kPa

Explanation: In the blow molding process, there is some amount of pressure that has to be given to the air for blowing the bottles. The amount of pressure to be given depends on the material. The minimum pressure that can be given in this process is 400 kPa.

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