What is slush moulding, Mechanical Engineering

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Q. What is Slush moulding?

Slush moulding is an excellent method for producing open-end objects. It is an inverse process of dipping, in which the inside of the mould is coated whereas the outside is coated in this case. This process is followed for the production of a wide variety of articles this paper will focus the use of TPU'S in slush moulding. For making skins for automotive inside parts such as instruments panels,consoles,glove door boxes, door panels,etc

The main components of the process are:

• The mould

• The powder box

• The movement: rotation, vibration change of position

It is a process that also involves the application of plastisol to a mould, but in this case the piece is gelated in hot bath, temperature around 200-230 oC. The time spent inside the hot bath depends on the required thickness. The remaining non-gelated plastisol is extracted, and gelation of PVC in the mould is completed. The piece is finally demolded. Applications for this process include automotive pieces and PVC masks.


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