Injection moulding method and injection moulding apparatus

An injection rate (cm /sec) of a screw feeder 9, at the time of starting an injection into the cavity of a mould 5, 6, is the largest and the injection rate (cm /sec) thereof gradually or sequentially decreases until an end of injection so that a temperature of a melted resin reaching the end portio...

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Bibliographische Detailangaben
Hauptverfasser:	KOUICHI TANIZAKI, CHIAKI MORI, AKIHIRO HONMA, MASATOSHI KOBAYASHI
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	An injection rate (cm /sec) of a screw feeder 9, at the time of starting an injection into the cavity of a mould 5, 6, is the largest and the injection rate (cm /sec) thereof gradually or sequentially decreases until an end of injection so that a temperature of a melted resin reaching the end portion of the cavity decreases within a range where the melted resin is not solidified. There is also disclosed an apparatus comprising an injector for injecting material into the cavity of a mould 5, 6, a memory 19 for storing temperature data, a temperature sensor, a controller for monitoring a temperature condition of the sensor and an injection condition of the injector and a judgment portion.