Cracking site for fracture separation of thermoplastic objects

摘要

The line of intentional breakage is obtained by stages of partial mold filling, their extent being defined by the edge profile of a sliding core (3), which coincides with a weakened zone of reduced cross section. The line of weakness is obtained by coincidence of the zone weakened by a thinned section, and fusion between different parts of the molding. The molding flow lines do not cross the weakened zone having a reduced cross section.