Global Patent Index - EP 1768804 A4

EP 1768804 A4 20100915 - METHOD FOR CONSOLIDATING TOUGH COATED HARD POWDERS

Title (en)

METHOD FOR CONSOLIDATING TOUGH COATED HARD POWDERS

Title (de)

VERFAHREN ZUM KONSOLIDIEREN VON MIT RESISTENTER BESCHICHTUNG BESCHICHTETEN HARTPULVERN

Title (fr)

PROCEDE DE RENFORCEMENT DE POUDRES DURES A REVETEMENT RESISTANT

Publication

EP 1768804 A4 20100915 (EN)

Application

EP 04776430 A 20040610

Priority

US 2004018445 W 20040610

Abstract (en)

[origin: WO2006001791A1] A method of consolidating particulate materials into articles having combinations of properties not available by conventional processes by liquid phase sintering. These particulate materials are comprised of core particles individually coated with layers of a metal compound having a relatively higher fracture toughness than the core, such as WC or TaC. These coated particles include an outer layer comprised a metal, such as Co or Ni. The particles with these coatings are pressed to form an article and the article densified at pressures and temperatures where full density is achieved without the degradation of the material forming the core particle.

IPC 8 full level

B22F 1/16 (2022.01); B22F 1/17 (2022.01)

CPC (source: EP KR US)

B22F 1/16 (2022.01 - EP KR US); B22F 1/17 (2022.01 - EP KR US); B22F 3/1035 (2013.01 - EP KR US); B22F 7/02 (2013.01 - KR)

Citation (search report)

  • [X] WO 9851419 A1 19981119 - TOTH RICHARD EDMUND [US]
  • [X] US 2004052984 A1 20040318 - TOTH RICHARD E [US]
  • [X] US 5876793 A 19990302 - SHERMAN ANDREW [US], et al
  • [X] US 3871840 A 19750318 - WILDER ARTHUR G, et al
  • [X] US 5106392 A 19920421 - SLUTZ DAVID E [US], et al
  • [A] US 3971656 A 19760727 - RUDY ERWIN
  • [A] US 5173107 A 19921222 - DREYER KLAUS [DE], et al
  • [A] EP 0493351 A2 19920701 - SANDVIK AB [SE]
  • [A] US 3752655 A 19730814 - RAMQVIST L
  • [X] TOTH I SMID J KEANE P ETTMAYER R E: "Tough-coated hard powders: a new concept for hard metals", ADVANCES IN POWDER METALLURGY & PARTICULATE MATERIALS, METAL POWDER INDUSTRIES FEDERATION, PRINCETON, NJ, US, vol. 6, 1 January 2003 (2003-01-01), pages 183 - 203, XP009137242, ISSN: 1065-5824
  • [X] "Tough coats on hard powders n - a revolution in the making?", METAL POWDER REPORT, MPR PUBLISHING SERVICES, SHREWSBURY, GB, vol. 58, no. 9, 1 September 2003 (2003-09-01), pages 14 - 19, XP004454477, ISSN: 0026-0657
  • [A] TOTH R E ET AL: "TOUGH-COATED HARD POWDERS FOR HARDMETALS OF NOVEL PROPERTIES", PROCEEDINGS OF THE INTERNATIONAL PLANSEE SEMINAR, XX, XX, vol. 2, 1 January 2001 (2001-01-01), pages 306 - 325, XP009059349
  • See references of WO 2006001791A1

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 PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2006001791 A1 20060105; AU 2004321077 A1 20060105; AU 2004321077 B2 20110623; BR PI0418870 A 20071127; BR PI0418870 B1 20140415; CA 2570671 A1 20060105; CA 2570671 C 20130108; CN 1997475 A 20070711; CN 1997475 B 20100929; EP 1768804 A1 20070404; EP 1768804 A4 20100915; IL 179667 A0 20070515; IL 179667 A 20161229; JP 2008502576 A 20080131; KR 101215656 B1 20130110; KR 20070044430 A 20070427; MX PA06013640 A 20070516; NO 20070168 L 20070110; RU 2006145849 A 20080720; RU 2366539 C2 20090910; RU 2366539 C9 20100210; SA 05260249 B1 20080603

DOCDB simple family (application)

US 2004018445 W 20040610; AU 2004321077 A 20040610; BR PI0418870 A 20040610; CA 2570671 A 20040610; CN 200480043774 A 20040610; EP 04776430 A 20040610; IL 17966706 A 20061128; JP 2007527166 A 20040610; KR 20077000589 A 20040610; MX PA06013640 A 20040610; NO 20070168 A 20070110; RU 2006145849 A 20040610; SA 05260249 A 20050810