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1. (WO2013161745) DEVICE FOR HIGH-DENSITY MOLDING AND METHOD FOR HIGH-DENSITY MOLDING OF MIXED POWDER

Pub. No.:    WO/2013/161745    International Application No.:    PCT/JP2013/061740
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
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 is filled with a mixed powder containing a lubricant, a first applied pressure is applied, molding a mixed powder intermediate compact that, when the highest real density that can be molded of the mixed powder intermediate compact by applying the first applied pressure is 100%, has a real density ratio of at least 85% and less than 96%, the molded mixed powder intermediate compact is heated, the mixed powder intermediate compact of which the temperature has been actively raised to the melting-point-equivalent temperature of the lubricant powder is set in a second die that has been warmed to the melting-point-equivalent temperature, a second applied pressure is applied to the mixed powder intermediate compact within the second die, and thus is molded a high-density mixed powder completed compact.