APPARATUS AND METHOD FOR INJECTION MOLDING AT LOW CONSTANT PRESSURE

• Main Authors: SCHILLER, GARY, FRANCIS, ALTONEN, GENE, MICHAEL, NEUFARTH, RALPH, EDWARD
• Format: Patent
• Language: English; French
• Published: 29.11.2012
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A low constant pressure injection molding machine forms molded parts by injecting molten thermoplastic material into a mold cavity at low substantially constant pressures of 6,000 psi and less. As a result, the low constant pressure injection molding machine includes a mold formed of easily machineable material that is less costly and faster to manufacture than typical injection molds. L'invention concerne une machine à mouler par injection, à basse pression constante, qui forme des pièces moulées en injectant une matière thermoplastique fondue dans une cavité de moule à des pressions basses et sensiblement constantes, de 6 000 psi et moins. De cette façon, la machine à mouler par injection, à basse pression constante, comprend un moule formé d'un matériau facilement usinable qui est moins coûteux et plus rapide à travailler que les moules d'injection typiques.