PRODUCTION OF COMPOSITE BODY WITH CURVED SURFACE

PURPOSE:To conduct both drawing and injection molding in one process to obtain a composite body having a good interlayer adhesion without an occurrence of wrinkle or breakage by a method wherein after a metallic sheet material is pressed against a fixed mold by a ring piece, a resin is injected into...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	MORITA YOSHITOMO, HIRATSUKA TORU, KITO KAZUO
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS ELECTRICITY INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To conduct both drawing and injection molding in one process to obtain a composite body having a good interlayer adhesion without an occurrence of wrinkle or breakage by a method wherein after a metallic sheet material is pressed against a fixed mold by a ring piece, a resin is injected into a cavity, and a movable mold having a curved surface is closed while the pressing force of the ring piece is controlled. CONSTITUTION:A metallic sheet material in use is 30-600mum thick. An air cylinder 11 is provided in a movable mold plate 8 of a mold. A ring piece 13 is fixed to the top end of a piston 12. The metallic sheet material, such as an aluminum foil 16, is placed between a fixed mold and a movable mold, and clamping is started. Before a convex surface of a movable mold plate 10 abuts on the aluminum foil 16, the aluminum foil 16 is clamped between the ring piece 13 and a cavity block mold plate 6. The mold is closed until a compression zone remains while the clamping force is controlled. Next, a thermoplastic resin is injected through a sprue 14, thereafter being compressed while the clamping force of the ring piece 13 is controlled.