Trends in the development of injection moulding machines for thermoplastics

Iako postoji veliki broj postupaka injekcijskoga prešanja polimera temeljnim se smatra visokotlačni postupak. Uspješna preradba injekcijskim prešanjem temelji se na uskla|enomu izboru i radu elemenata sustava za injekcijsko prešanje kojega čine ubrizgavalica, kalup i temperiralo. U radu su razmotrene tri izvedbe gradnje ubrizgavalica: hidraulična, hibridna i potpuno električna. Opisane su prednosti i nedostatci pojedinih izvedbi tijekom rada.There are many procedures of injection moulding of thermoplastics, the basic one being the high-pressure procedure. Successful injection moulding is based on a co-ordinated choice and operation of elements of the injection moulding system, which consists of the injection moulding machine, mould and temperature controller. In this paper three concepts of construction of injection moulding machines are considered: hydraulic, hybrid and all-electric. Their advantages and disadvantages in operation are described as well