EP0456296B1 - Procédé de fabrication de bandes et fils coulés en continu - Google Patents

Procédé de fabrication de bandes et fils coulés en continu Download PDF

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Publication number
EP0456296B1
EP0456296B1 EP91200921A EP91200921A EP0456296B1 EP 0456296 B1 EP0456296 B1 EP 0456296B1 EP 91200921 A EP91200921 A EP 91200921A EP 91200921 A EP91200921 A EP 91200921A EP 0456296 B1 EP0456296 B1 EP 0456296B1
Authority
EP
European Patent Office
Prior art keywords
aluminum
lead
heat treatment
silicon
matrix
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
EP91200921A
Other languages
German (de)
English (en)
Other versions
EP0456296A1 (fr
Inventor
Bruno Dr. Prinz
Alberto Romero
Ingrid MÜLLER
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0456296A1 publication Critical patent/EP0456296A1/fr
Application granted granted Critical
Publication of EP0456296B1 publication Critical patent/EP0456296B1/fr
Anticipated expiration legal-status Critical
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent

Definitions

  • the invention relates to a method for producing at a high casting and cooling rate of a melt heated to a temperature above the segregation temperature, plastically deformed and heat-treated strips and wires made of monotectic aluminum-silicon alloy, in which in the aluminum and aluminum-silicon -Eutectic matrix 1 to 50 wt .-% lead or bismuth are stored.
  • a uniform dispersion of spherical droplets of small diameter in the matrix of monotectic alloys can, however, be achieved if the melt is continuously cast vertically to form a strip or wire of 5 to 20 mm thickness or diameter with a relatively high casting and cooling rate, so that before the phase boundary solid / liquid a very steep temperature gradient is maintained.
  • the distance between the segregation and solidus isotherms within the system and thus the sedimentation distance is as short as possible.
  • the temperature or path interval is given by the isotherms of the separation temperature and the temperature of the monotectic Reaction in which the matrix phase solidifies and thereby includes the second still liquid phase in the distribution that is then present.
  • This method is particularly suitable for the production of cast strips or wires made of monotectic aluminum-silicon alloys, in the matrix of which aluminum and aluminum-silicon eutectic exist, 1 to 50% by weight of lead or bismuth as a minority phase in the form of fine Droplet is stored.
  • the cast strip or wire is subjected to a rolling and / or heat treatment in order to optimize the material properties.
  • a rolling and / or heat treatment in order to optimize the material properties.
  • the originally spherical lead or bismuth phase is deformed into elongated platelets.
  • elongated inclusions adversely affect the mechanical resilience and the technological properties of the material, so that in order to set the desired material properties, it is necessary to transform the elongated platelets into compact structural shapes, which can be done by subsequent heat treatment.
  • a common method for the transformation and subsequent molding of a dispersed low-melting minority phase is the long-term heating of the monotectic alloy to a temperature above the melting temperature of the low-melting minority phase.
  • the minority phase is transformed and shaped by dissolving and transporting the matrix metal, preferably within the molten phase, since the solubilities and diffusion coefficients in melts are much greater than in solids.
  • US-A-4 471 031 an aluminum alloy which contains 0.5 to 5% silicon and 0.5 to 8% lead and bismuth among other metals.
  • the melt is cast at a speed of 1.5 to 2.5 m / mm and the cast strip is annealed after forming at 350 to 550 ° C and with a max. Cooled to 200 ° C / h. About the behavior of the lead minority phases or bismuth, no information is given.
  • US-A-3 827 882 discloses an aluminum-silicon-lead alloy with 3 to 26% by weight of lead, 0.5 to 11.3% by weight of silicon, up to 1% by weight of bismuth and up to 1% by weight % Cerium or lithium.
  • the melt heated to a temp above the development temperature, is continuously cast at a high cooling rate.
  • the lead phase is prevented from oozing out, and there is a fine distribution in the matrix.
  • the alloy contains 1% cerium or lithium.
  • the solution to this problem is that the melt is poured at a speed of 10 to 30 mm / s and cooled at a speed of 300 to 1500 K / s and the strips or wires are subjected to a heat treatment at a temperature of 550 to 600 ° C be subjected.
  • the aluminum-silicon eutectic also melts at least partially.
  • the transformation or shaping of the liquid lead or bismuth phase within the eutectic melting range takes place very quickly.
  • the monotectic aluminum-silicon alloy with the lead phase enclosed in the matrix is subjected to a heat treatment at temperatures of 580 to 590 ° C. or 575-585 ° C.
  • the heat treatment expediently takes 0.5 to 15 minutes.
  • the method according to the invention is particularly suitable for the treatment of sliding materials based on aluminum-silicon with a lead or bismuth phase finely dispersed in their matrix.
  • Fig. 1 a photographic image of a cut through a continuously cast, 10 mm thick and then rolled cast strip of a ternary monotectic aluminum alloy with 5% silicon and 10% bismuth is shown in 500 times magnification.
  • elongated plates of the bismuth phase (3) are embedded in the matrix formed from aluminum (1) and aluminum-silicon eutectic (2).
  • the 500-fold enlargement of the photographic image of a cut through a continuously cast, then rolled and then heated to 587.5 ° C. for 5 minutes of the abovementioned ternary monotectic aluminum alloy shown in FIG. 2 shows that the bismuth phase (4) into the matrix (5) consisting essentially of aluminum is molded in and the silicon (6) is crystallized in a significantly coarse form.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Continuous Casting (AREA)
  • Conductive Materials (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Silicon Compounds (AREA)
  • Moulding By Coating Moulds (AREA)
  • Organic Insulating Materials (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Ropes Or Cables (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Claims (4)

  1. Procédé de fabrication de rubans et de fils en alliage aluminium-silicium monotectique coulés en continu avec une grande vitesse de coulée et de refroidissement d'une masse fondue chauffée au-dessus de la température de démixion, déformés plastiquement et traités par la chaleur, alliage dans lequel sont incorporés, dans la matrice constituée d'un eutectique aluminium-silicium, 1 à 50 % en poids de plomb ou de bismuth, caractérisé en ce que la masse fondue est coulée à une vitesse de 10 à 30 mm/seconde et refroidie à une vitesse de 300 à 1 500 K/seconde et les rubans et fils sont soumis à un traitement par la chaleur à des températures de 550 à 600 °C.
  2. Procédé selon la revendication 1, caractérisé en ce que l'alliage aluminium-silicium monotectique avec la phase plomb incluse dans la matrice est soumis à un traitement par la chaleur à 580 à 590 °C.
  3. Procédé selon la revendication 1, caractérisé en ce que l'alliage monotectique aluminium-silicium avec la phase bismuth incluse dans la matrice est soumis à un traitement par la chaleur de 575 à 585 °C.
  4. Procédé selon les revendications 1 à 3, caractérisé en ce que le traitement par la chaleur dure 0,5 à 15 minutes.
EP91200921A 1990-05-05 1991-04-18 Procédé de fabrication de bandes et fils coulés en continu Expired - Lifetime EP0456296B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4014430 1990-05-05
DE4014430A DE4014430A1 (de) 1990-05-05 1990-05-05 Verfahren zur herstellung von stranggegossenen baendern und draehten

Publications (2)

Publication Number Publication Date
EP0456296A1 EP0456296A1 (fr) 1991-11-13
EP0456296B1 true EP0456296B1 (fr) 1996-03-06

Family

ID=6405758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91200921A Expired - Lifetime EP0456296B1 (fr) 1990-05-05 1991-04-18 Procédé de fabrication de bandes et fils coulés en continu

Country Status (9)

Country Link
US (1) US5192377A (fr)
EP (1) EP0456296B1 (fr)
JP (1) JPH062087A (fr)
KR (1) KR910020191A (fr)
AT (1) ATE135055T1 (fr)
BR (1) BR9101762A (fr)
CA (1) CA2041012A1 (fr)
DE (2) DE4014430A1 (fr)
ES (1) ES2085417T3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3742454B2 (ja) * 1996-03-07 2006-02-01 サンデン株式会社 浄水供給装置
IL123503A (en) * 1998-03-01 2001-01-11 Elecmatec Electro Magnetic Tec Aluminum-bismuth bearing alloy and methods for its continuous casting
US20060188703A1 (en) * 2005-02-22 2006-08-24 The Regents Of The University Of California Automated process based on differential settling to obtain density gradients
US9856552B2 (en) * 2012-06-15 2018-01-02 Arconic Inc. Aluminum alloys and methods for producing the same
JP6105815B2 (ja) 2014-05-30 2017-03-29 東洋アルミニウム株式会社 アルミニウム箔、これを用いた電子部品配線基板、およびアルミニウム箔の製造方法
DE102015112550B3 (de) 2015-07-30 2016-12-08 Zollern Bhw Gleitlager Gmbh & Co. Kg Verfahren zur Herstellung einer monotektischen Legierung
DE102017113216A1 (de) 2017-06-15 2018-12-20 Zollern Bhw Gleitlager Gmbh & Co. Kg Monotektische Aluminium-Gleitlagerlegierung und Verfahren zu seiner Herstellung und damit hergestelltes Gleitlager

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE271470C (fr) *
FR1089882A (fr) * 1952-12-27 1955-03-22 Gen Motors Corp Alliage d'aluminium et coussinet ou palier fabriqué à l'aide de cet alliage
FR1097812A (fr) * 1953-04-03 1955-07-11 Gen Motors Corp Alliage antifriction perfectionné à base d'aluminium
US3432293A (en) * 1966-01-06 1969-03-11 Glacier Metal Co Ltd Bearing materials and method of making same
US3827882A (en) * 1968-03-15 1974-08-06 Glacier Metal Co Ltd High lead aluminium alloy
JPS5914096B2 (ja) * 1979-09-05 1984-04-03 財団法人電気磁気材料研究所 Ａｌ−Ｓｉ基吸振合金およびその製造方法
DE3249133C2 (de) * 1981-10-15 1995-01-05 Taiho Kogyo Co Ltd Verfahren zum Herstellen einer Legierung auf Aluminium-Basis für Lager sowie Verwendung der Legierung
US4471031A (en) * 1981-10-15 1984-09-11 Taiho Kogyo Co., Ltd. Al-Si-Pb Bearing alloy and bearing composite
GB8513330D0 (en) * 1985-05-28 1985-07-03 Ae Plc Bearing materials

Also Published As

Publication number Publication date
BR9101762A (pt) 1991-12-17
ES2085417T3 (es) 1996-06-01
EP0456296A1 (fr) 1991-11-13
JPH062087A (ja) 1994-01-11
DE4014430A1 (de) 1991-11-07
KR910020191A (ko) 1991-12-19
DE59107496D1 (de) 1996-04-11
US5192377A (en) 1993-03-09
ATE135055T1 (de) 1996-03-15
CA2041012A1 (fr) 1991-11-06

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