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1. WO2011001868 - COMPRESSION MOLDING METHOD FOR POWDER AND DEVICE THEREFOR

Publication Number WO/2011/001868
Publication Date 06.01.2011
International Application No. PCT/JP2010/060618
International Filing Date 23.06.2010
IPC
B30B 11/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses
02using a ram exerting pressure on the material in a moulding space
CPC
B30B 1/42
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
1Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
42by magnetic means, e.g. electromagnetic
B30B 11/027
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
02using a ram exerting pressure on the material in a moulding space
027Particular press methods or systems
B30B 11/04
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
02using a ram exerting pressure on the material in a moulding space
04co-operating with a fixed mould
B30B 15/068
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
06Platens or press rams
068Drive connections, e.g. pivotal
Applicants
  • 三和システムエンジニアリング株式会社 SANWA SYSTEM ENGINEERING Co., Ltd. [JP]/[JP] (AllExceptUS)
  • 吉岡 寿夫 YOSHIOKA, Hisao [JP]/[JP] (UsOnly)
  • 伊藤 盛康 ITO, Sigeyasu [JP]/[JP] (UsOnly)
Inventors
  • 吉岡 寿夫 YOSHIOKA, Hisao
  • 伊藤 盛康 ITO, Sigeyasu
Agents
  • 渡邉 丈夫 WATANABE, Takeo
Priority Data
2009-15876503.07.2009JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) COMPRESSION MOLDING METHOD FOR POWDER AND DEVICE THEREFOR
(FR) PROCÉDÉ DE MOULAGE PAR COMPRESSION POUR POUDRE ET DISPOSITIF POUR CELUI-CI
(JA) 粉体の圧縮成形方法ならびにその装置
Abstract
(EN)
A magnetostrictive actuator (52), as an impact force generating means, is inserted between at least one of the upper and lower rams (2, 5) of a powder molding press and a punch (3). After the compression by a predetermined static pressure, the compression by the impact force is performed to reduce the internal stress. If the downward pressure of the upper ram (2) is released after the compression by the static pressure and the upper ram (2) is dropped by the weight thereof, the molding time can be further reduced.
(FR)
L'invention porte sur un actionneur magnétostrictif (52), comme moyen de génération de force d'impact, qui est inséré entre au moins l'un d'un marteau supérieur et d'un marteau inférieur (2, 5) d'une presse de moulage de poudre et un poinçon (3). Après la compression par une pression statique prédéterminée, la compression par la force d'impact est réalisée pour réduire la contrainte interne. Si la pression vers le bas du marteau supérieur (2) est libérée après la compression par la pression statique et que le marteau supérieur (2) chute sous le poids de celui-ci, le temps de moulage peut être davantage réduit.
(JA)
粉体成形プレス機の上下ラム(2),(5)の少なくとも一方とパンチ(3)との間に衝撃力発生手段として磁歪アクチュエータ(52)を挿入し,所定の静圧による圧縮の後に衝撃力による圧縮を行い,内部応力を低下させる。静圧による圧縮の後,上ラム(2)の圧下をゆるめ,上ラム(2)が自重で落下できるようにすると,成形時間を一層短縮できる。
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