49846 ⎘
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; Means for plasticising or homogenising the moulding material or forcing it into the mould; Exerting after-pressure on the moulding material using movable mould wall or runner parts preventing backflow of moulding material to the injection means during after-pressure