Sprue-plane

The sprue-plane is called the xy-plane. Results measured on four different TMA samples taken from an injection moulded sample, crystallinity 44 %wt.)... 

This type of mould, also often referred to as a three plate mould, is used when it is desired to have the runner system in a different plane from the parting line of the moulding. This would be the case in a multi-cavity mould where it was desirable to have a central feed to each cavity (see Fig. 4.38). In this type of mould there is automatic degating and the runner system and sprue are ejected separately from the moulding. 

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