49693 ⎘
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor; Component parts, details or accessories; Auxiliary operations; Moulds; Sprue channels Runner channels or runner nozzles; Flow control means disposed within the sprue channel, e.g. "torpedo" construction Torpedoes in the sprue channel for heating the melt of cross-linkable material