Injection Molding with Localized Heating in Flow Challenge Regions

摘要

Injection molding at substantially constant pressure with the use of rapid heating techniques, such as induction heating, at strategic locations within a mold to heat molding surfaces in a manner that mitigates problems typically associated with flow filling challenges.

主权项

1. A method, comprising:
injecting a molten thermoplastic material into a mold cavity defined by a mold of an injection molding apparatus; obtaining, using a sensor, during the injecting, data associated with the molten thermoplastic material flowing at a pre-determined location of the mold cavity; and controlling, via a controller communicatively connected to the sensor, a heating source arranged to locally heat at least a portion of the mold, the controlling being based on the obtained data.