Thermoplastic injection moulding
Injection moulding is the most commonly used and important technology in thermoplastic processing. A precisely specified dose of melted substance is injected at high speed from the working pressure chamber of the injection press into the closed shaped cavity of the metal tool. The cooling substance hardens into the final product. Then the mould opens up in its parting plane, the pressing is taken out and the whole process repeated. The injection process is discontinuous and cyclic.
The advantage of injection moulding is the lack of wastage of processed material, often reaching 100 %. The main processed materials are the basic plastics (PP, PE, PS), construction plastics (PC, PA, PBT) and also first-rate construction plastics (PPS, PEEK). In addition, this technology does not generate any vapours, and no special requirements are placed on work safety.
The injection moulding technology is located at Prievidza (Slovakia). There are 11 machines; clamping force of 110-500 t. Maximum pressing weight is 900 g. Negri Bossi machine, type e–Canbio 4250 is equipped with a robotic arm Robots sytrama 101 GL. Tampoprint – the company has a monochrome electro semi-automatic with closed-system TM 180S.