EP 1520056 A2 20050406 - HARD METAL IN PARTICULAR FOR CUTTING STONE, CONCRETE AND ASPHALT
Title (en)
HARD METAL IN PARTICULAR FOR CUTTING STONE, CONCRETE AND ASPHALT
Title (de)
HARTMETALL FUER INSBESONDERE GESTEIN-, BETON- UND ASPHALTSCHNEIDEN
Title (fr)
METAL DUR PERMETTANT DE TAILLER LA ROCHE, LE BETON ET L'ASPHALTE
Publication
Application
Priority
- DE 10231303 A 20020710
- DE 10248898 A 20021018
- DE 10258537 A 20021214
- EP 0307462 W 20030710
Abstract (en)
[origin: WO2004007784A2] The invention relates to a hard metal made from WC for tools for the mechanical working of stone, concrete and asphalt in particular, with 5 to 25 wt. % of binder made from Co or Co and Ni and with a coercivity field strength of up to 30.0 kA/m or whereby the binder is made from at least 5 vol. % of nanoparticles with ordered phases of W, Co and/or C. The hard metal has a magnetic saturation ( sigma or 4 pi sigma , each in units of microtesla cubic meters per kilogram) depending on the co-proportion (X) in wt. % of the hard metal in a range of sigma = 0.11X to sigma = 0.137X or 4 pi sigma = 0.44 pi X to 4 pi sigma = 0.548 pi X.
IPC 1-7
IPC 8 full level
C22C 29/08 (2006.01)
CPC (source: EP US)
C22C 29/08 (2013.01 - EP US); B22F 2005/001 (2013.01 - EP US); Y10T 428/25 (2015.01 - EP US)
Citation (search report)
See references of WO 2004007784A2
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
Designated extension state (EPC)
LT LV
DOCDB simple family (publication)
WO 2004007784 A2 20040122; WO 2004007784 A3 20040408; AT E385262 T1 20080215; AU 2003250024 A1 20040202; AU 2003250024 A8 20040202; DE 50309106 D1 20080320; EP 1520056 A2 20050406; EP 1520056 B1 20080130; ES 2300616 T3 20080616; US 2006093859 A1 20060504
DOCDB simple family (application)
EP 0307462 W 20030710; AT 03763783 T 20030710; AU 2003250024 A 20030710; DE 50309106 T 20030710; EP 03763783 A 20030710; ES 03763783 T 20030710; US 51766105 A 20051229