ES2143585T3 - Procedimiento para la fabricacion de cuerpos prensados de polvo de alta densidad. - Google Patents

Procedimiento para la fabricacion de cuerpos prensados de polvo de alta densidad.

Info

Publication number
ES2143585T3
ES2143585T3 ES95200504T ES95200504T ES2143585T3 ES 2143585 T3 ES2143585 T3 ES 2143585T3 ES 95200504 T ES95200504 T ES 95200504T ES 95200504 T ES95200504 T ES 95200504T ES 2143585 T3 ES2143585 T3 ES 2143585T3
Authority
ES
Spain
Prior art keywords
die
pressing
subjected
electrically conductive
current pulses
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
ES95200504T
Other languages
English (en)
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.)
PMG Fuessen GmbH
Original Assignee
Sinterstahl GmbH
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 Sinterstahl GmbH filed Critical Sinterstahl GmbH
Application granted granted Critical
Publication of ES2143585T3 publication Critical patent/ES2143585T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Powder Metallurgy (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO PARA EL PRENSADO DE POLVO CON CAPACIDAD CONDUCTORA ELECTRICA EN FORMAS PRENSADAS ESTABLES DE FORMA PARA LA OBTENCION DE PIEZAS PRENSADAS DE ALTA DENSIDAD. LA DENSIDAD DE PRENSADO ALCANZABLE ES MAYOR DEL 96 %, EN MULTIPLES VECES CASI EL 100 % DE LA DENSIDAD TEORICA CORRESPONDIENTE AL MATERIAL DE TRABAJO. PARA ELLO SE SUPERPONE EN LA PRENSA ESTATICA EL POLVO SEGUN UN PROCESO HABITUAL EN UNA SEGUNDA ETAPA DE PROCEDIMIENTO APLICANDOSE DE 1 HASTA 3 IMPULSOS DE CORRIENTE ELECTRICA DE 5 X 10-5 HASTA 5 X 10-2 S DE DURACION Y DE ALTA POTENCIA SOBRE EL PUNZON DE PRENSADO. EN DIFERENCIA A LOS PROCESOS CONOCIDOS NO SE CONSIGUE CON ELLO NINGUN SINTERIZADO DE VALOR NOMINAL DE LAS PARTICULAS DE POLVO. EL PROCEDIMIENTO SE CARACTERIZA EN PARTICULAR PARA LA ELABORACION DE PIEZAS DE MASA DE SINTERIZADO DE ALTA DENSIDAD Y ALTA RESISTENCIA, DONDE LAS PIEZAS PRENSADAS SON FABRICADAS CON ALTA FRECUENCIA DE INTERVALO EN PRENSAS AUTOMATICAS.
ES95200504T 1994-03-08 1995-03-02 Procedimiento para la fabricacion de cuerpos prensados de polvo de alta densidad. Expired - Lifetime ES2143585T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4407593A DE4407593C1 (de) 1994-03-08 1994-03-08 Verfahren zur Herstellung von Pulverpreßlingen hoher Dichte
US08/401,092 US5529746A (en) 1994-03-08 1995-03-08 Process for the manufacture of high-density powder compacts

Publications (1)

Publication Number Publication Date
ES2143585T3 true ES2143585T3 (es) 2000-05-16

Family

ID=25934466

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95200504T Expired - Lifetime ES2143585T3 (es) 1994-03-08 1995-03-02 Procedimiento para la fabricacion de cuerpos prensados de polvo de alta densidad.

Country Status (6)

Country Link
US (1) US5529746A (es)
EP (1) EP0671232B1 (es)
JP (1) JP2918804B2 (es)
AT (1) ATE189638T1 (es)
DE (2) DE4407593C1 (es)
ES (1) ES2143585T3 (es)

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US6187087B1 (en) 1998-12-31 2001-02-13 Materials Modification, Inc. Method of bonding a particle material to near theoretical density
US5989487A (en) * 1999-03-23 1999-11-23 Materials Modification, Inc. Apparatus for bonding a particle material to near theoretical density
DE19945592A1 (de) * 1999-09-23 2001-04-12 Bosch Gmbh Robert Weichmagnetischer Werkstoff und Verfahren zu dessen Herstellung
FR2807521A1 (fr) * 2000-04-07 2001-10-12 Bp Chemicals Snc Methode de mesure de compressibilite a chaud de poudre
DE10112434C1 (de) * 2001-03-15 2002-08-29 Bt Magnet Technologie Verfahren zur Herstellung einer Vorform für Dentalerzeugnisse
US8327931B2 (en) 2009-12-08 2012-12-11 Baker Hughes Incorporated Multi-component disappearing tripping ball and method for making the same
US8403037B2 (en) * 2009-12-08 2013-03-26 Baker Hughes Incorporated Dissolvable tool and method
US9101978B2 (en) 2002-12-08 2015-08-11 Baker Hughes Incorporated Nanomatrix powder metal compact
US9682425B2 (en) 2009-12-08 2017-06-20 Baker Hughes Incorporated Coated metallic powder and method of making the same
US9109429B2 (en) 2002-12-08 2015-08-18 Baker Hughes Incorporated Engineered powder compact composite material
US8297364B2 (en) 2009-12-08 2012-10-30 Baker Hughes Incorporated Telescopic unit with dissolvable barrier
US9079246B2 (en) 2009-12-08 2015-07-14 Baker Hughes Incorporated Method of making a nanomatrix powder metal compact
EP1773418B8 (en) * 2004-07-19 2013-10-09 Smith & Nephew, Inc. Pulsed current sintering for surfaces of medical implants
CA2579202A1 (en) * 2004-09-10 2006-03-16 Element Six Limited High density abrasive compacts
DE102008051622A1 (de) * 2008-10-02 2010-04-08 Roland Gschwinder Verfahren und Vorrichtung zur Herstellung eines Erzeugnisses durch Urformen aus flüssigem, breiigem, pastenförmigem, pulverigem, körnigem, festem Material und/oder dessen Kompositionszuständen
EP2198993B1 (en) 2008-12-19 2012-09-26 EPoS S.r.L. Sintering process and corresponding sintering system
US9243475B2 (en) 2009-12-08 2016-01-26 Baker Hughes Incorporated Extruded powder metal compact
US8425651B2 (en) 2010-07-30 2013-04-23 Baker Hughes Incorporated Nanomatrix metal composite
US9127515B2 (en) 2010-10-27 2015-09-08 Baker Hughes Incorporated Nanomatrix carbon composite
US8573295B2 (en) 2010-11-16 2013-11-05 Baker Hughes Incorporated Plug and method of unplugging a seat
US10240419B2 (en) 2009-12-08 2019-03-26 Baker Hughes, A Ge Company, Llc Downhole flow inhibition tool and method of unplugging a seat
US8528633B2 (en) * 2009-12-08 2013-09-10 Baker Hughes Incorporated Dissolvable tool and method
US9227243B2 (en) 2009-12-08 2016-01-05 Baker Hughes Incorporated Method of making a powder metal compact
US8776884B2 (en) 2010-08-09 2014-07-15 Baker Hughes Incorporated Formation treatment system and method
US9090955B2 (en) 2010-10-27 2015-07-28 Baker Hughes Incorporated Nanomatrix powder metal composite
US8631876B2 (en) 2011-04-28 2014-01-21 Baker Hughes Incorporated Method of making and using a functionally gradient composite tool
US9080098B2 (en) 2011-04-28 2015-07-14 Baker Hughes Incorporated Functionally gradient composite article
US9139928B2 (en) 2011-06-17 2015-09-22 Baker Hughes Incorporated Corrodible downhole article and method of removing the article from downhole environment
US9707739B2 (en) 2011-07-22 2017-07-18 Baker Hughes Incorporated Intermetallic metallic composite, method of manufacture thereof and articles comprising the same
US8783365B2 (en) 2011-07-28 2014-07-22 Baker Hughes Incorporated Selective hydraulic fracturing tool and method thereof
US9833838B2 (en) 2011-07-29 2017-12-05 Baker Hughes, A Ge Company, Llc Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US9643250B2 (en) 2011-07-29 2017-05-09 Baker Hughes Incorporated Method of controlling the corrosion rate of alloy particles, alloy particle with controlled corrosion rate, and articles comprising the particle
US9057242B2 (en) 2011-08-05 2015-06-16 Baker Hughes Incorporated Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate
US9033055B2 (en) 2011-08-17 2015-05-19 Baker Hughes Incorporated Selectively degradable passage restriction and method
US9109269B2 (en) 2011-08-30 2015-08-18 Baker Hughes Incorporated Magnesium alloy powder metal compact
US9090956B2 (en) 2011-08-30 2015-07-28 Baker Hughes Incorporated Aluminum alloy powder metal compact
US9856547B2 (en) 2011-08-30 2018-01-02 Bakers Hughes, A Ge Company, Llc Nanostructured powder metal compact
US9643144B2 (en) 2011-09-02 2017-05-09 Baker Hughes Incorporated Method to generate and disperse nanostructures in a composite material
US9133695B2 (en) 2011-09-03 2015-09-15 Baker Hughes Incorporated Degradable shaped charge and perforating gun system
US9347119B2 (en) 2011-09-03 2016-05-24 Baker Hughes Incorporated Degradable high shock impedance material
US9187990B2 (en) 2011-09-03 2015-11-17 Baker Hughes Incorporated Method of using a degradable shaped charge and perforating gun system
US9284812B2 (en) 2011-11-21 2016-03-15 Baker Hughes Incorporated System for increasing swelling efficiency
US9010416B2 (en) 2012-01-25 2015-04-21 Baker Hughes Incorporated Tubular anchoring system and a seat for use in the same
US9068428B2 (en) 2012-02-13 2015-06-30 Baker Hughes Incorporated Selectively corrodible downhole article and method of use
US9605508B2 (en) 2012-05-08 2017-03-28 Baker Hughes Incorporated Disintegrable and conformable metallic seal, and method of making the same
US9816339B2 (en) 2013-09-03 2017-11-14 Baker Hughes, A Ge Company, Llc Plug reception assembly and method of reducing restriction in a borehole
CA2936851A1 (en) 2014-02-21 2015-08-27 Terves, Inc. Fluid activated disintegrating metal system
US10865465B2 (en) 2017-07-27 2020-12-15 Terves, Llc Degradable metal matrix composite
US11167343B2 (en) 2014-02-21 2021-11-09 Terves, Llc Galvanically-active in situ formed particles for controlled rate dissolving tools
US10689740B2 (en) 2014-04-18 2020-06-23 Terves, LLCq Galvanically-active in situ formed particles for controlled rate dissolving tools
US9910026B2 (en) 2015-01-21 2018-03-06 Baker Hughes, A Ge Company, Llc High temperature tracers for downhole detection of produced water
US10378303B2 (en) 2015-03-05 2019-08-13 Baker Hughes, A Ge Company, Llc Downhole tool and method of forming the same
US10221637B2 (en) 2015-08-11 2019-03-05 Baker Hughes, A Ge Company, Llc Methods of manufacturing dissolvable tools via liquid-solid state molding
US10016810B2 (en) 2015-12-14 2018-07-10 Baker Hughes, A Ge Company, Llc Methods of manufacturing degradable tools using a galvanic carrier and tools manufactured thereof
EP3208015B1 (en) * 2016-02-19 2019-05-01 Fundación Tecnalia Research & Innovation Method of sintering electrically conducting powders

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CH519953A (de) * 1970-08-18 1972-03-15 Bbc Brown Boveri & Cie Verfahren zum Sintern von pulverförmigem Material, Vorrichtung zur Durchführung des Verfahrens und Anwendung desselben
FI53085C (es) * 1975-12-23 1978-02-10 Levanto Oy L A
BE849655A (fr) * 1976-12-20 1977-04-15 Perfectionnements aux procedes de frittage des metaux metalliques
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IT1214085B (it) * 1987-09-11 1990-01-10 Sintris Srl Macchina sinterizzatrice perfezionata e relativo metodo
US4929415A (en) * 1988-03-01 1990-05-29 Kenji Okazaki Method of sintering powder
CA2005002C (en) * 1988-12-20 2003-01-28 William M. Goldberger Improved method for electroconsolidation of a preformed particulate workpiece
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Also Published As

Publication number Publication date
JP2918804B2 (ja) 1999-07-12
ATE189638T1 (de) 2000-02-15
JPH07316609A (ja) 1995-12-05
DE4407593C1 (de) 1995-10-26
US5529746A (en) 1996-06-25
EP0671232A1 (de) 1995-09-13
DE59507759D1 (de) 2000-03-16
EP0671232B1 (de) 2000-02-09

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