What is the minimum thickness required by the plastic for vacuum forming?
View Answer Explanation
Which of the following is not an application of blow molding process?
What is the maximum thickness that can be allowed for a plastics sheet in a vacuum forming process?
The heater in the vacuum forming process is heated up to 90?C.
The initial cost in blow molding is low.
Which of the following moulding processes is widely used for the manufacturing of plastic bottles?
Blow moulding is a very slow process, however economical for producing products with better quality.
In extrusion blow moulding process, it is very difficult to trim away excess of plastics.
Single stage stretch blow moulding is always preferred than two stage stretch blow moulding for increase in production rate.
Single stage stretch blow moulding process is mostly used for small level production.
Thermoforming process involves injecting of molten plastic into a mould cavity by application of compressed air.
All Engineering MCQs