PENGARUH TEMPERATUR DAN TEKANAN TERHADAP HASIL CETAKAN POLYPROPYLENE MENGGUNAKAN MESIN INJECTION MOLDING VERTIKAL

Currently, the use of plastic products is increasing in various fields, due to their flexibility and low production costs. The injection molding process a technique that often used formation products. focus problem this study effect heating temperature hydraulic pressure on results box gear molds using process. test method uses variations produce maximum mold shape gear. From for full yield with melt 368ºC, 40ºC, an 490 Psi, there was failure release liquid which did not come out directly fill mold, because from jack must gradually.