Method for injection moulding involves the injection of melted plastic several times from vestibule to chamber under pressure at a constant level of quality and weight

摘要

The method for injection moulding involves melted plastic being injected at least twice, preferably several times, from a vestibule (1) in a shaped hollow chamber (4) and filled under pressure. Each mould filler path for the injection moulded section is held, preferably under tension maintaining quality and, ideally, weight. The tension in the vestibule may be adjusted such that the end pressure after each fill remains the same.