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1. (WO2013161744) DEVICE FOR HIGH-DENSITY MOLDING AND METHOD FOR HIGH-DENSITY MOLDING OF MIXED POWDER

Pub. No.:    WO/2013/161744    International Application No.:    PCT/JP2013/061739
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Tue Apr 23 01:59:59 CEST 2013
IPC: B22F 3/02
B22F 3/03
B30B 11/02
H01F 1/22
H01F 41/02
Applicants: AIDA ENGINEERING, LTD.
アイダエンジニアリング株式会社
Inventors: HASEGAWA, Kazuhiro
長谷川 和宏
HIRAI, Yoshiki
平井 佳樹
Title: DEVICE FOR HIGH-DENSITY MOLDING AND METHOD FOR HIGH-DENSITY MOLDING OF MIXED POWDER
Abstract:
In the present invention, a first die (21D) is filled with a mixed powder (100), which is a mixture of a basic metal powder and a low-melting-point lubricant powder, a first applied pressure is applied to mold a mixed powder intermediate compact (110) with a form having a protruding section (110A) protruding in the direction from which pressure is applied compared to the form of a mixed powder completed compact (120), the mixed powder intermediate compact (110) is heated to actively raise the temperature of the mixed powder intermediate compact (110) to the melting-point-equivalent temperature of the lubricant powder, and the heated mixed powder intermediate compact (110) is subjected to a second applied pressure within a second die (41D) and is pressure molded while subjecting the protruding section (110A) to crushing compression in the direction from which pressure is applied in order to complete a high density mixed powder completed compact (120) having an intended form.