Resin Parts Remaining in Mold

Molded parts sometimes stick to and remain in the mold due to the electrostatic charge generated by friction with the mold. Due to miniaturization and thinner designs, molded parts are lighter and stick more easily. As the shape becomes more complicated, the friction surface with the mold increases and the parts become charged more easily. Furthermore, high-speed molding machines cause friction at higher speeds, resulting in larger electrostatic charges and greater risk of parts remaining in molds.