types of moulding

Question 1

injection moulding is used to make _____ ______ and products. it can produced very _____ and accurate shapes. it can mass produce consistent quality product __/_. the cost of this process is very ______.

Answer 1

thermo plastics.
complexed/detailed.
24/7.
expensive.

Question 2

blow moulding produces ____ shapes only. they usually have a neck or a _____ opening at one end. the cost of a mould is ______.

Answer 2

hollow.
narrow.
cheap.

Question 3

compression moulding uses a ____ of plastic to mould, this is made of thermosetting powdered plastic. it is compressed with a ____ weighing _ tonnes.

Answer 3

slug.
former.
5.

Question 4

calendaring makes ___ sheets or films from thermoplastics. it makes things such as _____ ___. it is made by rolling and squashing down the ____.

Answer 4

thin.
plastic bags.
slug.

Question 5

vacuum forming is commonly used in ______. vacuum forming ____ the plastic in order for it to become _____ so it can be sucked on to the mould.

Answer 5

schools.
heats.
flexible.

Question 6

rotational moulding is a process that includes _____ plastic or ____ form plastic that _____ at __ degrees. only _____ shapes can be produced using this method. this methods cost is ____.

Answer 6

molten.
powder.
rotates.
360.
hollow.
cheap.