EP 2061615 A1 20090527 - METHOD FOR PRODUCTION OF COMPOSITE POWDERS AND COMPOSITE POWDER
Title (en)
METHOD FOR PRODUCTION OF COMPOSITE POWDERS AND COMPOSITE POWDER
Title (de)
VERFAHREN ZUR HERSTELLUNG VON KOMPOSITPULVERN SOWIE KOMPOSITPULVER
Title (fr)
PROCÉDÉ DE PRÉPARATION DE POUDRES COMPOSITES ET POUDRES COMPOSITES CORRESPONDANTES
Publication
Application
Priority
- AT 2007000408 W 20070824
- AT 15492006 A 20060915
Abstract (en)
[origin: WO2008031122A1] The invention relates to a method for production of a composite powder, wherein a powder starting material A, comprising at least tungsten and/or molybdenum and/or alloys and/or compounds of said metals is mixed with a powder starting material B, comprising at least Co and/or Fe and/or Ni and/or alloys and/or compounds of said metals, in the mixture an element ratio of tungsten and/or molybdenum to Co and/or Ni and/or Fe is set to the range of 99 : 1 (A:B) to 50 :50 (A:B) wt. % and the powder mixture is subjected to a reduction process in the course of which the charged Co, Fe and/or Ni is covered over by a layer of W and/or Mo. The composite powder obtained thus can be partly carburised, nitrided or carbonitrided in a subsequent process step.
IPC 8 full level
CPC (source: EP US)
B22F 1/17 (2022.01 - EP US); B22F 9/22 (2013.01 - EP US); A61N 1/37512 (2017.07 - EP); B22F 2998/00 (2013.01 - EP); B22F 2999/00 (2013.01 - EP)
Citation (search report)
See references of WO 2008031122A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2008031122 A1 20080320; AT 504319 A1 20080415; AT 504319 B1 20100315; EP 2061615 A1 20090527; JP 2010503765 A 20100204
DOCDB simple family (application)
AT 2007000408 W 20070824; AT 15492006 A 20060915; EP 07784634 A 20070824; JP 2009527645 A 20070824