Global Patent Index - EP 0921203 A1

EP 0921203 A1 19990609 - Beryllium-aluminium-based alloy

Title (en)

Beryllium-aluminium-based alloy

Title (de)

Eine Beryllium-Aluminium-Legierung

Title (fr)

Une alliage de béryllium-aluminium

Publication

EP 0921203 A1 19990609 (EN)

Application

EP 98123234 A 19981207

Priority

JP 33703897 A 19971208

Abstract (en)

A Be-Al-based alloy suitably used for an actuator of a hard disk device is disclosed, which includes 30 to 95 wt% Be, and not more than 1.0 wt% Mg as a flowability improving element. The Be-Al-based alloy has an improved flowability which makes it possible to decrease extrusion pressure during extrusion stage, to extend the lifetime of the extrusion dies, and allow an inexpensive crucible material to be used.

IPC 1-7

C22C 21/00; C22C 25/00

IPC 8 full level

C22C 21/00 (2006.01); C22C 25/00 (2006.01); C22C 30/00 (2006.01)

CPC (source: EP)

C22C 21/00 (2013.01); C22C 25/00 (2013.01)

Citation (search report)

  • [PX] WO 9821376 A1 19980522 - BRUSH WELLMAN [US]
  • [XA] GB 1202129 A 19700812 - MALLORY & CO INC P R [US]
  • [XA] GB 1198107 A 19700708 - MALLORY & CO INC P R [US]
  • [A] GB 1311152 A 19730321 - LOCKHEED AIRCRAFT CORP
  • [A] US 3960551 A 19760601 - FRIDLYANDER IOSIF NAUMOVICH, et al
  • [XA] HASHIGUCHI, D.H. ET AL.: "Ternary aluminum-berylium alloys", METAL POWDERS INDUSTRIES FEDERATION, USA. CONFERENCE:ADVANCES IN POWDER METALLURGY AND PARTICULATE MATERIALS., vol. 3, 14 May 1995 (1995-05-14) - 17 May 1995 (1995-05-17), Seattle, USA, pages 12-3 - 12-17, XP002095850
  • [A] ZHANG, X. D. ET AL.: "Microstructural characterization and mechanical behaviour of novel in situ Be-Al composites.", MINERALS, METALS AND MATERIALS SOCIETY/AIME. CONFERENCE: LIGHT WEIGHT ALLOYS FOR AEROPACE APPLICATIONS IV,, 10 February 1997 (1997-02-10) - 13 February 1997 (1997-02-13), Orlando, USA, pages 247 - 254, XP002095851

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 0921203 A1 19990609; JP H11172360 A 19990629

DOCDB simple family (application)

EP 98123234 A 19981207; JP 33703897 A 19971208