ES2085457T3 - Acero para herramientas de metalurgia de polvos. - Google Patents

Acero para herramientas de metalurgia de polvos.

Info

Publication number
ES2085457T3
ES2085457T3 ES91830235T ES91830235T ES2085457T3 ES 2085457 T3 ES2085457 T3 ES 2085457T3 ES 91830235 T ES91830235 T ES 91830235T ES 91830235 T ES91830235 T ES 91830235T ES 2085457 T3 ES2085457 T3 ES 2085457T3
Authority
ES
Spain
Prior art keywords
temperature
salt
steel
powder
bath
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.)
Expired - Lifetime
Application number
ES91830235T
Other languages
English (en)
Inventor
Fabio Guglielmi
Giovanni Barcaro
Paolo Sommovigo
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.)
SVILUPPO MATERIALI SpA
Rina Consulting Centro Sviluppo Materiali SpA
Original Assignee
SVILUPPO MATERIALI SpA
Centro Sviluppo Materiali SpA
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 SVILUPPO MATERIALI SpA, Centro Sviluppo Materiali SpA filed Critical SVILUPPO MATERIALI SpA
Application granted granted Critical
Publication of ES2085457T3 publication Critical patent/ES2085457T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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%
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Abstract

SE PRESENTA UN NUEVO COMPUESTO PARA EL ACERO DE HERRAMIENTA DE POLVO-METALURGICO (PM), CARACTERIZADO POR LA AUSENCIA DE CO, REDUCCION DEL CONTENIDO DE W Y AUMENTO DE LOS CONTENIDOS DE MO Y V. ESTE ACERO CONTIENE (WT%), C DE 1.50 A 1.85, MN DE 0.20 A 0.55, SI DE 0.35 A 070, W DE 1.50 A 3.00, MO DE 8.00 A 9.50, V DE 5.50 A 6.50 Y CR DE 3.00 A 5.00, CONSTITUYENDO EL RESTO HIERRO E IMPUREZAS MENORES. EL POLVO UTILIZADO EN EL PROCESO DE FABRICACION SE OBTIENE MEDIANTE ATOMIZACION EN UN GAS QUE PUEDE SER NITROGENO O ARGON, SIENDO LAS RESULTANTES PARTICULAS DE FORMA ESFERICAS, 80% DE ELLAS DE TAMAÑO MENOR A 500 (MU)M. EL PROCESO DE FABRICACION COMPRENDE LAS SIGUIENTES ETAPAS: REFRIGERACION DURANTE LA SOLIDIFICACION DEL POLVO A UN NIVEL ENTRE 1000 Y 10000 NA PIEZA SEMITERMINADA TRANSFORMACION DEL PRODUCTO SEMITERMINADO EN EL DESEADO CALENTAMIENTO DEL PRODUCTO EN UN BAÑO-DE-SAL A UNA TEMPERATURA ENTRE 1160 Y 1200 URECIMIENTO EN UN BAÑO-DE-SAL A UNA TEMPERATURA ENTRE 450 Y 600 DE TRES TEMPLADOS SUCESIVOS A TEMPERATURAS ENTRE LOS 530 Y 560 C, ENTRE 540 Y 570 C Y NUEVAMENTE ENTRE 530 Y 560 C, CADA UNO DE ELLOS ENTRE UNA Y DOS HORAS. EL ACERO DE HERRAMIENTA, DE ESTA MANERA OBTENIDO, CONTIENE CARBUROS PRECIPITADOS DEL TIPO M2C-MC MIDIENDO MENOS DE 3.5(MU)M Y UNA FRACCION DE VOLUMEN ENTRE 13 Y 18%.
ES91830235T 1990-07-17 1991-05-30 Acero para herramientas de metalurgia de polvos. Expired - Lifetime ES2085457T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48150A IT1241490B (it) 1990-07-17 1990-07-17 Acciaio rapido da polveri.

Publications (1)

Publication Number Publication Date
ES2085457T3 true ES2085457T3 (es) 1996-06-01

Family

ID=11264854

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91830235T Expired - Lifetime ES2085457T3 (es) 1990-07-17 1991-05-30 Acero para herramientas de metalurgia de polvos.

Country Status (7)

Country Link
EP (1) EP0467857B1 (es)
AT (1) ATE135056T1 (es)
DE (1) DE69117605T2 (es)
DK (1) DK0467857T3 (es)
ES (1) ES2085457T3 (es)
GR (1) GR3019999T3 (es)
IT (1) IT1241490B (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993002819A1 (en) * 1991-08-07 1993-02-18 Kloster Speedsteel Aktiebolag High-speed steel manufactured by powder metallurgy
ATE150994T1 (de) * 1991-08-07 1997-04-15 Erasteel Kloster Ab Pulvermetallurgisch hergestellter schnellarbeitsstahl
SE500008C2 (sv) * 1991-08-07 1994-03-21 Erasteel Kloster Ab Snabbstål med god varmhårdhet och slitstyrka framställt av pulver
EP0814172B1 (de) * 1996-06-17 2002-09-11 Hau, Hanspeter PM-Warmarbeitsstahl und Verfahren zu dessen Herstellung
AT411580B (de) * 2001-04-11 2004-03-25 Boehler Edelstahl Verfahren zur pulvermetallurgischen herstellung von gegenständen
RU2287404C2 (ru) * 2003-04-28 2006-11-20 Дагестанский государственный технический университет (ДГТУ) Способ изготовления спеченного металлообрабатывающего инструмента на железной основе
RU2354502C1 (ru) * 2007-07-23 2009-05-10 Государственное Образовательное Учреждение Высшего Профессионального Образования "Дагестанский Государственный Технический Университет" (Дгту) Способ изготовления поверхностно-упрочненной порошковой карбидостали
EP2570507A1 (en) * 2011-09-19 2013-03-20 Sandvik Intellectual Property AB A method for producing high speed steel
EP2933345A1 (en) 2014-04-14 2015-10-21 Uddeholms AB Cold work tool steel

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117863A (en) * 1960-11-14 1964-01-14 Vanadium Alloys Steel Co Alloy steels
US4249945A (en) * 1978-09-20 1981-02-10 Crucible Inc. Powder-metallurgy steel article with high vanadium-carbide content
US4276087A (en) * 1979-05-03 1981-06-30 Crucible Inc. Powder-metallurgy vanadium-containing tungsten-type high-speed steel
JPS57181367A (en) * 1981-04-08 1982-11-08 Furukawa Electric Co Ltd:The Sintered high-v high-speed steel and its production
US4880461A (en) * 1985-08-18 1989-11-14 Hitachi Metals, Ltd. Super hard high-speed tool steel

Also Published As

Publication number Publication date
IT9048150A0 (it) 1990-07-17
DE69117605T2 (de) 1996-09-26
ATE135056T1 (de) 1996-03-15
IT1241490B (it) 1994-01-17
DK0467857T3 (da) 1996-05-20
GR3019999T3 (en) 1996-08-31
IT9048150A1 (it) 1992-01-17
EP0467857B1 (en) 1996-03-06
EP0467857A1 (en) 1992-01-22
DE69117605D1 (de) 1996-04-11

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