Global Patent Index - EP 0433264 A3

EP 0433264 A3 19910828 - METHOD FOR THE PRODUCTION OF PREFORMED MATERIAL FOR WORKPIECES COMPRISING A LARGE PROPORTION OF METAL COMPOUNDS

Title (en)

METHOD FOR THE PRODUCTION OF PREFORMED MATERIAL FOR WORKPIECES COMPRISING A LARGE PROPORTION OF METAL COMPOUNDS

Publication

EP 0433264 A3 19910828 (DE)

Application

EP 90890293 A 19901105

Priority

AT 261789 A 19891116

Abstract (en)

[origin: EP0433264A2] The invention relates to a process for the production of preformed material for workpieces, preferably tools, in particular of high-speed steel, having a high proportion of metal compounds. To achieve good hot workability in conjunction with a high proportion of metal compounds in the material and to improve the hardenability of the workpieces produced therefrom and having good mechanical properties, the process is characterised by the division of a liquid melt into individual particles and the formation of a metal spray stream into which powder consisting of high-melting metal compounds and/or containing said compounds is passed and is applied with the individual particles to a substrate and allowed to solidify, and the body obtained is subjected to hot isostatic pressing and/or hot working.

IPC 1-7

C22C 1/10

IPC 8 full level

C22C 1/10 (2006.01); C22C 33/02 (2006.01); C23C 4/123 (2016.01); C23C 4/18 (2006.01)

CPC (source: EP)

C22C 1/1042 (2013.01); C22C 33/0292 (2013.01); C23C 4/123 (2016.01); C23C 4/18 (2013.01)

Citation (search report)

  • [X] DE 2015362 A1 19701008
  • [X] EP 0262869 A1 19880406 - ALCAN INT LTD [CA]
  • [X] DE 3428022 A1 19860130 - STARCK HERMANN C FA [DE]
  • [X] DE 3721258 A1 19880428 - KRUPP GMBH [DE]
  • [A] CHEMICAL ABSTRACTS, Band 87, Nr. 12, 19. September 1977, Zusammenfassung Nr. 88923H, Columbus, Ohio, US; & BR-A-76 05 089 (M.N.R. DE SOUZA et al.)
  • [A] CHEMICAL ABSTRACTS, Band 103, Nr. 22, 2. Dezember 1985, Zusammenfassung Nr. 181655f, Columbus, Ohio, US; P.R. BEELEY et al.: "Cast steel tools", & BR. FOUNDRYMAN, Band 70, Nr. 6, Seiten 289-296
  • [A] CHEMICAL ABSTRACTS, Band 96, Nr. 12, 22. März 1982, Zusammenfassung Nr. 89324m, Columbus, Ohio, US; S.R. KEOWN et al.: "Replacement of vanadium by niobium in S6-5-2 high-speed tool steels", & MET. TECHNOL. (LONDON), Band 7, Nr. 2, Seiten 50-57
  • [A] C.W. WEGST: "Stahlschlüssel", 15. Auflage, 1989, Verlag Stahlschlussel Wegst GmbH, Marbach, DE

Designated contracting state (EPC)

BE CH DE ES FR GB IT LI LU NL SE

DOCDB simple family (publication)

EP 0433264 A2 19910619; EP 0433264 A3 19910828; AT 395230 B 19921027; AT A261789 A 19920315

DOCDB simple family (application)

EP 90890293 A 19901105; AT 261789 A 19891116