EP 0568705 B1 19980513 - METHOD FOR DEGASSING AND SOLIDIFYING ALUMINUM ALLOY POWDER
Title (en)
METHOD FOR DEGASSING AND SOLIDIFYING ALUMINUM ALLOY POWDER
Title (de)
VERFAHREN ZUM ENTGASEN UND ERSTARREN VON ALUMINIUMLEGIERUNGSPULVER
Title (fr)
PROCEDE POUR DEGAZER ET SOLIDIFIER DES POUDRES D'ALLIAGE D'ALUMINIUM
Publication
Application
Priority
- JP 9201527 W 19921120
- JP 4769592 A 19920204
- JP 30787391 A 19911122
Abstract (en)
[origin: WO9309899A1] A method for degassing and solidifying aluminum alloy powder is mprovided that can eliminate drawbacks inherent in a conventional method by making induction heating available for degassing means during processes of forming and solidifying aluminum powder and aluminum alloy powder. The method comprises the steps of pre-forming aluminum powder, aluminum alloy powder, aluminum composite alloy powder or powder mixtures of these powders and non-ferrous metal particles to a specific resistance of 0.2 $g(V) cm or lower, removing heat decomposable evaporation components by directly induction heating the pre-formed body in the normal pressure atmosphere so as to raise the temperature thereof to 400 C to 600 C while maintaining a temperature rise gradient over 300 C at 0.4 C/scm or higher, and reducing the hydrogen content to less than 10 ppm.
IPC 1-7
IPC 8 full level
B22F 1/12 (2022.01); B22F 1/142 (2022.01); B22F 3/02 (2006.01); B22F 3/10 (2006.01); B22F 3/105 (2006.01); B22F 3/14 (2006.01); B22F 3/17 (2006.01); B22F 3/24 (2006.01); C21D 1/42 (2006.01); C22C 1/04 (2006.01); C22C 21/02 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01)
CPC (source: EP KR US)
B22F 1/12 (2022.01 - EP KR US); B22F 1/142 (2022.01 - EP KR US); B22F 3/02 (2013.01 - KR); B22F 3/1017 (2013.01 - EP US); B22F 3/1028 (2013.01 - EP); B22F 3/105 (2013.01 - EP US); B22F 3/24 (2013.01 - EP)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 9309899 A1 19930527; DE 69225469 D1 19980618; DE 69225469 T2 19980924; EP 0568705 A1 19931110; EP 0568705 A4 19951129; EP 0568705 B1 19980513; JP 3336645 B2 20021021; JP H05320709 A 19931203; KR 930703101 A 19931129; KR 960007499 B1 19960605
DOCDB simple family (application)
JP 9201527 W 19921120; DE 69225469 T 19921120; EP 92923997 A 19921120; JP 33390192 A 19921120; KR 930702170 A 19930722