EP 1546425 B1 20110119 - METHOD FOR PRODUCING A MOULDED BODY FROM SINTERED STEEL
Title (en)
METHOD FOR PRODUCING A MOULDED BODY FROM SINTERED STEEL
Title (de)
VERFAHREN ZUM HERSTELLEN EINES FORMKÖRPERS AUS SINTERSTAHL
Title (fr)
PROCEDE DE FABRICATION D'UN CORPS MOULE A PARTIR D'ACIER FRITTE
Publication
Application
Priority
- AT 0300292 W 20030930
- AT 14802002 A 20021001
Abstract (en)
[origin: WO2004031427A2] The invention relates to a method for producing a moulded body from sintered steel. According to said method, a sintered powder based on iron is mixed with a master alloy powder containing nickel, boron and iron, and the powder mixture is compressed to form a blank which is then sintered under conditions of a liquid phase sintering with a part by volume in the liquid phase of up to 15 %. In order to improve the impact strength, the boron content of the powder mixture is between 0.03 and 0.2 wt. % when the boron part of the master alloy powder is less than 10 wt. %, the weight ratio between the nickel part and the boron part of the powder mixture exceeds 5, and the master alloy powder has an average particle size of between 10 and 90 ñm.
IPC 8 full level
C22C 33/02 (2006.01); B01J 31/02 (2006.01); B22F 3/10 (2006.01); C07B 61/00 (2006.01); C07D 213/89 (2006.01)
CPC (source: EP US)
B22F 3/1035 (2013.01 - EP US); C22C 33/0207 (2013.01 - EP US); B22F 2999/00 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004031427 A2 20040415; WO 2004031427 A3 20041028; AT 411691 B 20040426; AT A14802002 A 20030915; AT E496149 T1 20110215; AU 2003265714 A1 20040423; DE 50313424 D1 20110303; EP 1546425 A2 20050629; EP 1546425 B1 20110119; JP 2006501364 A 20060112; US 2006165548 A1 20060727
DOCDB simple family (application)
AT 0300292 W 20030930; AT 03798821 T 20030930; AT 14802002 A 20021001; AU 2003265714 A 20030930; DE 50313424 T 20030930; EP 03798821 A 20030930; JP 2004540361 A 20030930; US 52929405 A 20050325