EP0433264A2 - Procédé de préparation d'ébauches pour pièces comprenant un taux élevé de composés métalliques - Google Patents

Procédé de préparation d'ébauches pour pièces comprenant un taux élevé de composés métalliques Download PDF

Info

Publication number
EP0433264A2
EP0433264A2 EP90890293A EP90890293A EP0433264A2 EP 0433264 A2 EP0433264 A2 EP 0433264A2 EP 90890293 A EP90890293 A EP 90890293A EP 90890293 A EP90890293 A EP 90890293A EP 0433264 A2 EP0433264 A2 EP 0433264A2
Authority
EP
European Patent Office
Prior art keywords
powder
metal
spray stream
melt
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90890293A
Other languages
German (de)
English (en)
Other versions
EP0433264A3 (en
Inventor
Bruno Dipl. -Ing. Hribernik
Gerhard Dipl.-Ing. Hackl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Boehler GmbH
Boehler GmbH Germany
Original Assignee
Boehler GmbH
Boehler GmbH Germany
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Boehler GmbH, Boehler GmbH Germany filed Critical Boehler GmbH
Publication of EP0433264A2 publication Critical patent/EP0433264A2/fr
Publication of EP0433264A3 publication Critical patent/EP0433264A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
    • C22C33/0292—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with more than 5% preformed carbides, nitrides or borides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/10—Alloys containing non-metals
    • C22C1/1036—Alloys containing non-metals starting from a melt
    • C22C1/1042—Alloys containing non-metals starting from a melt by atomising
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • C23C4/123—Spraying molten metal
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Definitions

  • the invention relates to a method for producing starting material according to the preamble of claim 1.
  • Coarse and excreted compounds deteriorate according to the interdendritic residual solidification Crucial is the hot deformability of the material and the mechanical properties of workpieces made from it, in particular tools and tool parts, so that there are considerable difficulties in hot forming and hardening as well as high risk of breakage during use.
  • the object of the invention was to create a starting material of the type mentioned at the outset which is readily thermoformable, has a high proportion of metal compounds with a small grain diameter, can be easily hardened and the workpieces made therefrom have good mechanical properties, especially high toughness.
  • the rest of the iron and melting-related impurities were broken down into liquid individual particles with nitrogen after emerging from a melt container and a metal spray stream was formed.
  • a powder with a grain size of 14 to 28 ⁇ m and with a composition of in% by weight was introduced into this metal spray stream.
  • the rest of the production-related impurities are introduced, applied to the surface in several layers with the liquid individual particles and allowed to solidify.
  • the ratio of the weight of liquid individual particles to powder was approximately 1: 0.4.
  • the body obtained on the base by relative movement of the powder / metal spray stream had a total thickness of 110 mm and was thermoformed with an 8.5-fold deformation by forging into a starting material for tools.
  • a tool made from the primary material for machining castings had a proportion of 31% by volume of niobium carbide after the heat treatment, the maximum carbide grain size being 12 ⁇ m.
  • the niobium carbide (NbC) grains with a melting point of approx. 3600 ° C were largely homogeneously distributed in the high-speed steel matrix.
  • a hardness of 65 HRC and a flexural strength of 3600 MPa were determined on the tool as material values, the service life in practical use was 3.6 times as high in comparison with a similar tool made of a steel DIN material No. 1.3343.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Powder Metallurgy (AREA)
EP19900890293 1989-11-16 1990-11-05 Method for the production of preformed material for workpieces comprising a large proportion of metal compounds Withdrawn EP0433264A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0261789A AT395230B (de) 1989-11-16 1989-11-16 Verfahren zur herstellung von vormaterial fuer werkstuecke mit hohem anteil an metallverbindungen
AT2617/89 1989-11-16

Publications (2)

Publication Number Publication Date
EP0433264A2 true EP0433264A2 (fr) 1991-06-19
EP0433264A3 EP0433264A3 (en) 1991-08-28

Family

ID=3537460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900890293 Withdrawn EP0433264A3 (en) 1989-11-16 1990-11-05 Method for the production of preformed material for workpieces comprising a large proportion of metal compounds

Country Status (2)

Country Link
EP (1) EP0433264A3 (fr)
AT (1) AT395230B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19924515A1 (de) * 1999-05-28 2000-11-30 Edelstahl Witten Krefeld Gmbh Sprühkompaktierter Stahl, Verfahren zu seiner Herstellung und Verbundwerkstoff
US6334884B1 (en) 1999-01-19 2002-01-01 Bohler Edelstahl Gmbh & Co Kg Process and device for producing metal powder
AT409831B (de) * 2000-03-03 2002-11-25 Boehler Uddeholm Ag Verfahren zur pulvermetallurgischen herstellung von vormaterial und vormaterial
AT411580B (de) * 2001-04-11 2004-03-25 Boehler Edelstahl Verfahren zur pulvermetallurgischen herstellung von gegenständen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2015362A1 (fr) * 1969-03-31 1970-10-08
DE3428022A1 (de) * 1984-07-30 1986-01-30 Hermann C. Starck Berlin, 1000 Berlin Verfahren zur herstellung von verbundpulver durch zerstaeuben einer metallschmelze
EP0262869A1 (fr) * 1986-09-24 1988-04-06 Alcan International Limited Poudre composite en alliage d'aluminium
DE3721258A1 (de) * 1987-06-27 1988-04-28 Krupp Gmbh Verfahren zur herstellung von dispersionswerkstoffen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1016539B (de) * 1955-07-22 1957-09-26 Metallgesellschaft Ag Verfahren zum Herstellen von Vorkoerpern fuer die pulvermetallurgische Herstellung von Werkstuecken
US3655837A (en) * 1969-06-18 1972-04-11 Republic Steel Corp Process for producing metal powder
BE790453A (fr) * 1971-10-26 1973-02-15 Brooks Reginald G Fabrication d'articles en metal
GB1472939A (en) * 1974-08-21 1977-05-11 Osprey Metals Ltd Method for making shaped articles from sprayed molten metal
BR7605089A (pt) * 1976-08-03 1976-12-28 Acos Villares Sa Ligas duras
DE3409366A1 (de) * 1984-03-12 1985-09-12 Mannesmann AG, 4000 Düsseldorf Verfahren und vorrichtung zur herstellung eines formkoerpers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2015362A1 (fr) * 1969-03-31 1970-10-08
DE3428022A1 (de) * 1984-07-30 1986-01-30 Hermann C. Starck Berlin, 1000 Berlin Verfahren zur herstellung von verbundpulver durch zerstaeuben einer metallschmelze
EP0262869A1 (fr) * 1986-09-24 1988-04-06 Alcan International Limited Poudre composite en alliage d'aluminium
DE3721258A1 (de) * 1987-06-27 1988-04-28 Krupp Gmbh Verfahren zur herstellung von dispersionswerkstoffen

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
C.W. WEGST: "Stahlschl}ssel", 15. Auflage, 1989, Verlag Stahlschlussel Wegst GmbH, Marbach, DE *
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 *
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.) *
CHEMICAL ABSTRACTS, Band 96, Nr. 12, 22. M{rz 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 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6334884B1 (en) 1999-01-19 2002-01-01 Bohler Edelstahl Gmbh & Co Kg Process and device for producing metal powder
AT409235B (de) * 1999-01-19 2002-06-25 Boehler Edelstahl Verfahren und vorrichtung zur herstellung von metallpulver
US6632394B2 (en) 1999-01-19 2003-10-14 Bohler Edelstahl Gmbh & Co. Kg Process and device for producing metal powder
US7198657B2 (en) 1999-01-19 2007-04-03 Boehler Edelstahl Gmbh & Co. Kg Process and device for producing metal powder
DE19924515A1 (de) * 1999-05-28 2000-11-30 Edelstahl Witten Krefeld Gmbh Sprühkompaktierter Stahl, Verfahren zu seiner Herstellung und Verbundwerkstoff
AT409831B (de) * 2000-03-03 2002-11-25 Boehler Uddeholm Ag Verfahren zur pulvermetallurgischen herstellung von vormaterial und vormaterial
US6630102B2 (en) 2000-03-03 2003-10-07 Böhler-Uddeholm Aktiengesellschaft Material produced using powder metallurgy with improved mechanical properties
AT411580B (de) * 2001-04-11 2004-03-25 Boehler Edelstahl Verfahren zur pulvermetallurgischen herstellung von gegenständen

Also Published As

Publication number Publication date
EP0433264A3 (en) 1991-08-28
ATA261789A (de) 1992-03-15
AT395230B (de) 1992-10-27

Similar Documents

Publication Publication Date Title
EP2253398B1 (fr) Matière première résistant à l'usure
DE2943601C2 (de) Vorlegierte Stahlpulver zur pulvermetallurgischen Herstellung von hochfesten Teilen
AT410448B (de) Kaltarbeitsstahllegierung zur pulvermetallurgischen herstellung von teilen
DE1533275B1 (de) Verfahren zur pulvermetallurgischen Herstellung von Hartlegierungen
DE1298293B (de) Hochverschleissfeste, bearbeitbare und haertbare Sinterstahllegierung und Verfahren zu deren Herstellung
EP0721995A2 (fr) Utilisation d'un alliage ferreux pour la fabrication de formes pour la transformation des matières plastiques
DE2722972A1 (de) Stickstoff enthaltender pulvermetallurgie-werkzeugstahl
EP0348380B1 (fr) Utilisation d'un alliage à base de fer pour la fabrication de pièces frittées, présentant une haute résistance à la corrosion, une haute résistance à l'usure ainsi qu'une haute tenacité et résistance à la compression et destinées, en particulier, au travail des matières synthétiques
EP2195473A1 (fr) Outil
DE2658813A1 (de) Stickstoff enthaltender schnellarbeitsstahl
DE1521193C3 (de) Verfahren zur Verhinderung des Herausfallens feuerfester Körner aus der Oberfläche eines gesinterten Verbundmetallgegenstandes
DE2705052A1 (de) Nach dem pulvermetallurgieverfahren hergestellter, stickstoff enthaltender schnelldrehstahl
WO2001079575A1 (fr) Acier allie a l'azote, compacte par pulverisation, procede permettant de le produire et materiau composite produit a partir dudit acier
AT392929B (de) Verfahren zur pulvermetallurgischen herstellung von werkstuecken oder werkzeugen
AT390806B (de) Austenitischer manganhartstahl und verfahren zu seiner herstellung
AT395230B (de) Verfahren zur herstellung von vormaterial fuer werkstuecke mit hohem anteil an metallverbindungen
EP3326739B1 (fr) Alliage fer-carbone et procédé de fabrication et d'utilisation d'un tel alliage
EP3323903B1 (fr) Matériau en acier fabriqué par métallurgie des poudres, procédé de production d'un composant à partir d'un tel matériau en acier et composant fabriqué en matériau en acier
DE60204449T2 (de) Stahlgegenstand
EP3225702B1 (fr) Acier a epaisseur reduite et procede de fabrication d'un produit allonge ou plat en acier a partir d'un tel acier
AT390807B (de) Austenitischer manganhartstahl und verfahren zu seiner herstellung
EP0719349B1 (fr) Procede de production des articles frittes
EP0721991B1 (fr) Procédé pour la fabrication d'une cheville expansible en acier inoxydable
DE2758330B1 (de) Schnellarbeitsstahl
CH680137A5 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19901113

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE CH DE ES FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE ES FR GB IT LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19930701