METHOD FOR MOLDING SHAFT-SHAPED PART, MOLD THEREFOR, AND SHAFT-SHAPED MOLDED OBJECT

PROBLEM TO BE SOLVED: To provide a shaft-shaped part molding method capable of producing a shaft-shaped molded product reduced in warpage and deformation with high accuracy. SOLUTION: In a shaft-shaped part molding method for molding a hollow shaft-shaped part, an insertion process for inserting a c...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	ABE KENSHIRO
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a shaft-shaped part molding method capable of producing a shaft-shaped molded product reduced in warpage and deformation with high accuracy. SOLUTION: In a shaft-shaped part molding method for molding a hollow shaft-shaped part, an insertion process for inserting a center pin 21 for molding the hollow parts of the shaft-shaped part into mold cavities 15, 16, an injection process injecting a molten resin into the cavities 15, 16, an injection process for injecting compressed gas into hollow parts A, B, C and a filling process filling the hollow parts with gas while the center pin 21 is allowed to retreat from the hollow parts are provided.