TWO-COLOR MOLDING DIE AND TWO-COLOR MOLDING METHOD

PROBLEM TO BE SOLVED: To obtain a two-color molding which is almost free from internal stress and residual strain by molding under an appropriate pressure applied to a transparent part when a colored support part is molded integrally with the transparent part after molding the latter. SOLUTION: This...

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Bibliographische Detailangaben
Hauptverfasser:	KIKUMORI KAZUHIRO, TSUBOUCHI ISAO, AKITAKE HIROSHI
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:	PROBLEM TO BE SOLVED: To obtain a two-color molding which is almost free from internal stress and residual strain by molding under an appropriate pressure applied to a transparent part when a colored support part is molded integrally with the transparent part after molding the latter. SOLUTION: This two-color molding die 10 comprises a primary molding side die 7 for molding the transparent part 3 and a secondary molding side die 9 for molding the colored support part 5. The transparent part 3 and the colored support part 5 are molded integrally into a two-color molding 1 using the secondary molding side die 9. The molding die 10 is constituted in the way that the thermal expansion level of a cavity side part insert 162of the secondary molding side die 9, is higher than the thermal expansion level of the cavity side part insert 161of the primary molding side die 7. COPYRIGHT: (C)2010,JPO&INPIT