Processing parameters influencing energy efficient injection moulding of plastics and rubbers / Utjecaj parametara prerade na energijski u inkovito injekcijsko pre anje plastike i gume

Injection moulding is one of the most important processes of plastics and rubber compounds processing. It enables the production of very complex plastics and rubber parts, even parts made of different plastics and rubber compounds, in one cycle. The system for injection moulding of polymers consists of different elements such as the mould, injection moulding machine and device for mould temperature regulation (tempering), and additional elements: dryers, robots, etc. For successful injection moulding, optimisation of moulded part material selection as well as elements of the injection moulding system is necessary. All of the mentioned factors consume significant amounts of energy. The paper presents the analysis of energy consumption in injection moulding systems, as well as the possibilities of energy savings in injection moulding process, starting with material selection, in order to obtain a more energy effi cient process. / Injekcijsko pre anje jedan je od najva nijih postupaka prerade plastike i kau ukovih smjesa te drugih organskih i anorganskih polimera. Postupak omogu uje proizvodnju vrlo kompleksnih proizvoda, katkad istodobno od vi e materijala, u jednom ciklusu. Sustav za injekcijsko pre anje polimera sastoji se od glavnih elemenata, kao to su kalup, ubrizgavalica i temperiralo, te dodatnih elemenata: su ila, robota itd. Za uspje nu proizvodnju injekcijskim pre anjem potrebno je optimirati izbor materijala otpreska i elemenata sustava za injekcijsko pre anje. Svi navedeni faktori utje u na potro nju energije. lanak prikazuje analizu potro nje energije u sustavu za injekcijsko pre anje te mogu e na ine u tede, po ev i od odabira materijala otpreska, radi postizanja energijski u inkovitijeg procesa prerade.