EP 3808864 B1 20220518 - PREMIX ALLOY POWDERS FOR DIAMOND TOOLS
Title (en)
PREMIX ALLOY POWDERS FOR DIAMOND TOOLS
Title (de)
VORMISCHLEGIERUNGSPULVER FÜR DIAMANTWERKZEUGE
Title (fr)
POUDRES D'ALLIAGE DE PRÉMÉLANGE POUR OUTILS DIAMANTÉS
Publication
Application
Priority
EP 19203219 A 20191015
Abstract (en)
[origin: EP3808864A1] The present invention provides a powder composition comprising a mixed powder of the formula (1) Fe<sub>a</sub>Co<sub>b</sub>Cu<sub>c</sub>Sn<sub>d</sub>Ni<sub>e</sub>B<sub>f</sub>Cr<sub>g</sub>C<sub>h</sub> (1)Wherein, based on (a+b+c+d+e+f+g+h) = 100 (wt.-%), a-h indicate the content of the individual elements (wt.-%):ais 0-85.0bis 0-85.0with (a+b) being 40.0-85.0cis 10.0-50.0dis 0.1-17.5with (c+d) being 10.1-55.0 [100<sup>∗</sup>d/(c+d)] being 1.0-35.0eis 0.01-15.0fis 0.02-1.0gis 0.10-4.0his 0.01-1.0wherein the content of the composition of formula (1) is ≥ 98 wt.-% of the entire composition. Also provided are compositions comprising the above powder composition and other material suitable for preparing a matrix (bond) for diamonds in a diamond cutting tool; a composite material made of diamond and the present compositions and a process for making these composite materials, and further the use of a powder of a XCrBC-alloy powder (X = Fe and/or Co) as a diamond binding and/or reinforcing agent.
IPC 8 full level
C22C 1/05 (2006.01); C22C 26/00 (2006.01); C22C 33/02 (2006.01); C22C 38/04 (2006.01); C22C 38/16 (2006.01); C22C 38/18 (2006.01); C22C 38/32 (2006.01); C22C 38/54 (2006.01); C22C 38/56 (2006.01); B22F 5/00 (2006.01); C22C 32/00 (2006.01)
CPC (source: EP)
C22C 1/05 (2013.01); C22C 26/00 (2013.01); C22C 33/0278 (2013.01); C22C 33/0285 (2013.01); C22C 38/04 (2013.01); C22C 38/54 (2013.01); C22C 38/56 (2013.01); B22F 2005/001 (2013.01); B22F 2998/10 (2013.01); C22C 32/0047 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3808864 A1 20210421; EP 3808864 B1 20220518; ES 2919199 T3 20220722
DOCDB simple family (application)
EP 19203219 A 20191015; ES 19203219 T 20191015