Global Patent Index - EP 0717784 B1

EP 0717784 B1 19980916 - ALUMINIUM-SILICON ALLOY SHEET FOR MECHANICAL, AIRCRAFT AND SPACE APPLICATIONS

Title (en)

ALUMINIUM-SILICON ALLOY SHEET FOR MECHANICAL, AIRCRAFT AND SPACE APPLICATIONS

Title (de)

BLECH AUS EINER ALUMINIUM-SILIZIUM-LEGIERUNG FUER MACHINEN- ODER FLUGZEUGBAU UND DIE RAUMFAHRT

Title (fr)

TOLE D'ALLIAGE ALUMINIUM-SILICIUM DESTINEE A LA CONSTRUCTION MECANIQUE, AERONAUTIQUE ET SPATIALE

Publication

EP 0717784 B1 19980916 (FR)

Application

EP 95920993 A 19950529

Priority

  • FR 9500693 W 19950529
  • FR 9407405 A 19940613

Abstract (en)

[origin: WO9534691A1] An aluminium alloy sheet, for mechanical, naval, aircraft and space applications, is subjected to solution heat treatment, quenching, and optionally tempering, to obtain an elastic limit > 320 MPa. Said alloy has the following composition by weight: Si: 6,5-11 %, Mg: 0.5-1.0 %, Cu: < 0.8 %, Fe: < 0.3 %, Mn: < 0.5 % and/or Cr: < 0.5 %, Sr 0.008-0.025 %, Ti: < 0.02 %. The total of the other elements is < 0.2 %, the remainder being aluminium. The alloy sheet of the invention has a high modulus of elasticity and low density and is designed, in particular, for lower wing surfaces and fuselage skins as well as for rocket cryogenic tanks.

IPC 1-7

C22C 21/04; C22F 1/043

IPC 8 full level

C22C 21/02 (2006.01); C22C 21/04 (2006.01); C22F 1/043 (2006.01)

CPC (source: EP US)

C22C 21/04 (2013.01 - EP US); C22F 1/043 (2013.01 - EP US)

Designated contracting state (EPC)

AT CH DE GB IT LI

DOCDB simple family (publication)

WO 9534691 A1 19951221; AT E171222 T1 19981015; CA 2168946 A1 19951221; DE 69504802 D1 19981022; DE 69504802 T2 19990325; EP 0717784 A1 19960626; EP 0717784 B1 19980916; FR 2721041 A1 19951215; FR 2721041 B1 19971010; JP H09501988 A 19970225; US 5837070 A 19981117

DOCDB simple family (application)

FR 9500693 W 19950529; AT 95920993 T 19950529; CA 2168946 A 19950529; DE 69504802 T 19950529; EP 95920993 A 19950529; FR 9407405 A 19940613; JP 50171196 A 19950529; US 53786496 A 19960122