METHOD OF INJECTION MOLDING RESIN PLATE HAVING THIN WALL PART, AND INJECTION MOLD TO BE USED THEREFORE

METHOD OF INJECTION MOLDING RESIN PLATE HAVING THIN WALL PART, AND INJECTION MOLD TO BE USED THEREFORE

PURPOSE: To form a thin wall part of a large area in a high accuracy without lowing its productivity. CONSTITUTION: A cavity mold 1 having projections 4, 5 and a core mold 2 forms a cavity part 3, and a part of the cavity part 3 is provided with thin and thick wall parts 11, 12, and the cavity part...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KITAICHI SATOSHI, KIMOTO HIDETOSHI, NAKAMURA CHIAKI
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:PURPOSE: To form a thin wall part of a large area in a high accuracy without lowing its productivity. CONSTITUTION: A cavity mold 1 having projections 4, 5 and a core mold 2 forms a cavity part 3, and a part of the cavity part 3 is provided with thin and thick wall parts 11, 12, and the cavity part 3 has on its wall surface a thin film resistive layers 6, 7 capable of being electrified, then, molten resin 8 is injection-charged into the cavity, so that a thin wall part is molded by a thin and thick wall part 11.