49378 ⎘
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles; Details, accessories and auxiliary operations Submerged burrs, e.g. using protruding mould parts forming a cavity in which the burr on the insert is formed for preventing surface defects