APERFEICOAMENTOS NO PROCESSO DE FABRICACAO DE CILINDROS INJETADOS A ALTA PRESSAO EM LIGA DE ALUMINIO

摘要

The manufacturing process for aluminium alloy die-cast cylinders is started with the injection of the molten aluminium separately in the respective dies for the upper cylinder part (10) and the lower part (11). Thereafter, after the injection operation is completed and before joining (10) and (11), both are turned by the mould stripping line 14. …To join (10) and (11), the upper portion of the cylinder (10) heated by any process to achieve expansion of (10) and hereafter, by mere pressure, (10) and (11) are coupled thus forming a single unit on cooling down.