EP1189713B1 - Roue de coulee produite selon un procede de centrifugation - Google Patents

Roue de coulee produite selon un procede de centrifugation Download PDF

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Publication number
EP1189713B1
EP1189713B1 EP00947865A EP00947865A EP1189713B1 EP 1189713 B1 EP1189713 B1 EP 1189713B1 EP 00947865 A EP00947865 A EP 00947865A EP 00947865 A EP00947865 A EP 00947865A EP 1189713 B1 EP1189713 B1 EP 1189713B1
Authority
EP
European Patent Office
Prior art keywords
casting wheel
casting
wheel according
grains
wheels
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
EP00947865A
Other languages
German (de)
English (en)
Other versions
EP1189713A1 (fr
Inventor
Dieter Nuetzel
Ewald Grote
Giselher Herzer
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.)
Vacuumschmelze GmbH and Co KG
Original Assignee
Vacuumschmelze GmbH and Co KG
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 Vacuumschmelze GmbH and Co KG filed Critical Vacuumschmelze GmbH and Co KG
Publication of EP1189713A1 publication Critical patent/EP1189713A1/fr
Application granted granted Critical
Publication of EP1189713B1 publication Critical patent/EP1189713B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys
    • C22C45/02—Amorphous alloys with iron as the major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0648—Casting surfaces
    • B22D11/0651—Casting wheels
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C45/00—Amorphous alloys

Definitions

  • the object of the invention is therefore to find a material its use as casting wheel material the problem-free Production of amorphous or microcrystalline, qualitative high quality metal alloys especially in large, commercial Allows quantities and that described above Problems largely minimized.
  • the high thermal conductivity and the high strength of the casting wheel materials cannot be set independently of each other. It usually results in an increase in hardness has a positive effect on the wear behavior of the casting wheels, to reduce thermal conductivity; this brings problems for the casting of sensitive amorphous alloys with himself.
  • the high thermal conductivity is due to the use of highly thermally conductive steels, copper or copper alloys reached.
  • copper or copper alloys reached.
  • a fine-grain structure of the casting wheel materials has proven itself (see FIG. 1), which has a favorable effect on the casting properties, in particular with regard to the wear and the service life of the casting wheels.
  • Such structures can be realized by a forming process (usually hot or cold forging or ring rolling) in connection with a heat treatment. Casting wheels for rapid solidification are therefore usually first cut from cast blocks and formed using various forging processes (open die forging, drop forging) or other forming processes (eg ring rollers).
  • JP 62-097 748 for example, a structure with a grain size of ⁇ 1000 ⁇ m is set on a cast Cu-Cr-Zr casting wheel by means of a specific heat treatment which prevents the formation of coarse grains.
  • a grain size is determined by forging variations ⁇ 500 ⁇ m in connection with an equiaxial grain geometry set the casting wheels to the requirement profile (high strength, wear resistance, high thermal conductivity) adapt. Due to the grain geometry, the wear and further improve the life of the casting wheels become. In addition to the contribution of precipitation hardening, this grain refinement strength according to the Hall-Petch relationship increased (see e.g. Gräfen H .: VDI Lexicon Materials Technology, VDI publishing house, Düsseldorf 1993).
  • the partially inhomogeneous structure over the circumference of the forged casting wheels also creates areas on the casting wheel surface with different thermal conductivity.
  • amorphous alloys which have a very sensitive casting behavior (for example Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 )
  • the elongated structure of the grains also favors heat dissipation from the casting wheel surface. Such a textured
  • the structure of the structure also favors the formation of an even one Grain structure both in the radial direction and in the circumferential direction. This means there are no local wear nests about the extent that locally affect the tape quality. Furthermore, the evenly fine structure remains exist even after reworking the casting wheel (overturning).
  • Casting wheels with such a structure can over Centrifugal casting processes can be realized. With this manufacturing process will melt under the effect of a very high radial acceleration (up to 120 times acceleration) stiffens. The resulting pressure creates a strong one Degassing the melt on, causing impurities the liquid melt can be prevented. This solidification characteristic creates a very pure, highly compressed Structure that is already very cheap when cast has mechanical properties.
  • the centrifugally cast Components are also characterized by a very homogeneous, finely structured Cast structure which is free of inclusions, Blow and blow holes is out. Especially on the surface very homogeneous cast structure also reduces wear and tear and is thus another feature of our invention.
  • the grains are both in the near-surface fine grain zone as well as in the adjacent stem crystal zone interspersed with so-called dendrites, which is shown in FIG. 2 is.
  • dendrites which is shown in FIG. 2 is.
  • These dendrites lead to one mechanical reinforcement of the cast structure.
  • the cast structure is reinforced in the introduction to the description mentioned very good casting properties the centrifugally cast casting wheels according to the invention are decisive achieved.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Forging (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Continuous Casting (AREA)

Claims (14)

  1. Roue de coulée qui est une pièce de révolution, en alliage de structure granulaire non équiaxiale, pour fabriquer des bandes métalliques amorphes et/ou microcristallines par solidification rapide,
    caractérisée en ce que
    les grains sont allongés avec leurs axes longitudinaux essentiellement perpendiculaires à la surface de la roue de coulée.
  2. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    elle est fabriquée par coulée centrifuge.
  3. Roue de coulée selon la revendication 1,
    caractérisée en ce que
    la dimension des grains individuels perpendiculairement à la surface de la roue de coulée est la double de leur dimension dans la surface de la roue de coulée.
  4. Roue de coulée selon la revendication 1,
    caractérisée en ce que
    la structure de la roue est homogène à la surface périphérique.
  5. Roue de coulée selon la revendication 1,
    caractérisée en ce que
    la grosseur de grain à la surface périphérique est inférieure à 500 microns.
  6. Roue de coulée selon la revendication 5,
    caractérisée en ce que
    la grosseur de grain à la surface périphérique est inférieure à 200 microns.
  7. Roue de coulée selon la revendication 6,
    caractérisée en ce que
    la grosseur de grain à la surface périphérique est inférieure à 100 microns.
  8. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    elle présente une conductibilité thermique élevée.
  9. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    elle est faite d'un alliage Cu-Cr-Zr.
  10. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    elle est faite d'un alliage Cu-Ni-Si.
  11. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    elle est faite d'un bronze de Cu-Be.
  12. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    elle a un diamètre d'au moins 300 mm.
  13. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    elle a la forme d'un anneau fretté sur un moyeu.
  14. Roue de coulée selon la revendication 1,
    caractérisée en ce qu'
    il est prévu des alésages de refroidissement dans lesquels circule un liquide.
EP00947865A 1999-06-23 2000-06-21 Roue de coulee produite selon un procede de centrifugation Expired - Lifetime EP1189713B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19928777 1999-06-23
DE19928777A DE19928777A1 (de) 1999-06-23 1999-06-23 Gießrad über Schleudergießverfahren hergestelltes Gießrad
PCT/EP2000/005781 WO2001000354A1 (fr) 1999-06-23 2000-06-21 Roue de coulee produite selon un procede de centrifugation

Publications (2)

Publication Number Publication Date
EP1189713A1 EP1189713A1 (fr) 2002-03-27
EP1189713B1 true EP1189713B1 (fr) 2003-08-27

Family

ID=7912271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00947865A Expired - Lifetime EP1189713B1 (fr) 1999-06-23 2000-06-21 Roue de coulee produite selon un procede de centrifugation

Country Status (5)

Country Link
US (1) US6668907B1 (fr)
EP (1) EP1189713B1 (fr)
JP (1) JP2003503205A (fr)
DE (2) DE19928777A1 (fr)
WO (1) WO2001000354A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6675476B2 (en) 2000-12-05 2004-01-13 Hewlett-Packard Development Company, L.P. Slotted substrates and techniques for forming same
US7291231B2 (en) * 2002-05-17 2007-11-06 Metglas, Inc. Copper-nickel-silicon two phase quench substrate
US6764556B2 (en) * 2002-05-17 2004-07-20 Shinya Myojin Copper-nickel-silicon two phase quench substrate
DE102008015096A1 (de) * 2008-03-19 2009-09-24 Kme Germany Ag & Co. Kg Verfahren zur Herstellung von Gießformteilen sowie nach dem Verfahren hergestellte Gießformteile

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142571A (en) * 1976-10-22 1979-03-06 Allied Chemical Corporation Continuous casting method for metallic strips
EP0024506B1 (fr) * 1979-08-13 1984-09-12 Allied Corporation Dispositif et procédé pour la coulée en lingotière de bandes métalliques, en employant une lingotière à surface chromée
US4307771A (en) * 1980-01-25 1981-12-29 Allied Corporation Forced-convection-cooled casting wheel
JPS57139453A (en) * 1981-02-25 1982-08-28 Hitachi Ltd Continuous producing device for metallic ribbon
US4537239A (en) * 1982-07-13 1985-08-27 Allied Corporation Two piece casting wheel
JPS6297748A (ja) * 1985-03-25 1987-05-07 Fujikura Ltd 鋳造輪とその製造方法
US5564490A (en) * 1995-04-24 1996-10-15 Alliedsignal Inc. Homogeneous quench substrate
US5842511A (en) * 1996-08-19 1998-12-01 Alliedsignal Inc. Casting wheel having equiaxed fine grain quench surface

Also Published As

Publication number Publication date
WO2001000354A1 (fr) 2001-01-04
DE19928777A1 (de) 2000-12-28
JP2003503205A (ja) 2003-01-28
US6668907B1 (en) 2003-12-30
EP1189713A1 (fr) 2002-03-27
DE50003460D1 (de) 2003-10-02

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