EP0593878A1 - Demi-produit à symétrie de révolution dont la section possède des propriétés variables - Google Patents

Demi-produit à symétrie de révolution dont la section possède des propriétés variables Download PDF

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Publication number
EP0593878A1
EP0593878A1 EP93113617A EP93113617A EP0593878A1 EP 0593878 A1 EP0593878 A1 EP 0593878A1 EP 93113617 A EP93113617 A EP 93113617A EP 93113617 A EP93113617 A EP 93113617A EP 0593878 A1 EP0593878 A1 EP 0593878A1
Authority
EP
European Patent Office
Prior art keywords
particles
preform
semi
core
outer layer
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.)
Granted
Application number
EP93113617A
Other languages
German (de)
English (en)
Other versions
EP0593878B1 (fr
Inventor
Dieter Dr.-Ing. Stock
W. Gary Watson
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.)
Wieland Werke AG
Original Assignee
Wieland Werke 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 Wieland Werke AG filed Critical Wieland Werke AG
Publication of EP0593878A1 publication Critical patent/EP0593878A1/fr
Application granted granted Critical
Publication of EP0593878B1 publication Critical patent/EP0593878B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12021—All metal or with adjacent metals having metal particles having composition or density gradient or differential porosity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12049—Nonmetal component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12049—Nonmetal component
    • Y10T428/12056—Entirely inorganic

Definitions

  • the invention relates to a rotationally symmetrical semi-finished product, in particular made of copper or copper alloys, with properties that vary over the cross section.
  • the preforms required for the semi-finished product with a variable alloy composition and the resulting different properties are known.
  • the production can be carried out according to the so-called "spray compacting" method (cf. for example GB-PS 1.379.261 and GB-PS 1.472.939), in which a metal melt is broken down into droplets by a gas jet in a suitable nozzle and the droplets are opened a pad can be collected again into a solid body.
  • the initial preform is produced from an alloy without any modifying additives present, by spraying the molten metal onto a rotating hollow mandrel.
  • the later sections of the preform are given a modified alloy content by later introducing modifying additives into the molten metal and spraying them with the melt.
  • the invention has for its object to increase the range of possible rotationally symmetrical preforms and the possibility of different combinations of properties of the semi-finished product.
  • the preform consists of a core and at least one surrounding outer layer and that there are the modifying additives are particles which are insoluble in the metal matrix and are either introduced into the core or into the outer layer.
  • a variant according to the invention is characterized in that the preform consists of a core and at least one surrounding outer layer and that the modifying additives are particles which are insoluble in the metal matrix, different types of particles being introduced both into the core and into the outer layer.
  • metallic particles made of molybdenum, niobium, tungsten, lead or the like be provided as insoluble particles.
  • non-metallic oxide, carbide, boride, nitride or the like are provided as insoluble particles, in particular particles of aluminum oxide (Al2O3), silicon carbide (SiC) or boron nitride (BN).
  • Al2O3 aluminum oxide
  • SiC silicon carbide
  • BN boron nitride
  • the spray compacting method is preferably used, in which metal melt is atomized into droplets by a gas jet in a nozzle and the droplets are collected on a rotating substrate.
  • at least two nozzles working simultaneously and independently of one another are arranged such that their droplet jets overlap and are directed towards a substrate of circular cross section, insoluble particles either in the first or second droplet jet or wherein different types of insoluble particles are injected into the first and second droplet streams simultaneously.
  • At least one nozzle simultaneously injects insoluble particles and noticeably soluble particles in the metal matrix into the first or second droplet jet or into both droplet jets (for example, insoluble lead particles and soluble nickel particles into the droplet jet of a copper alloy).
  • insoluble particles and noticeably soluble particles in the metal matrix into the first or second droplet jet or into both droplet jets (for example, insoluble lead particles and soluble nickel particles into the droplet jet of a copper alloy).
  • the subsequent hot forming of the preform causes alloy formation with the soluble particles to occur, and a targeted change in properties is thus made possible.
  • FIG. 1 schematically shows a spray compacting device for producing a cylindrical preform 1 (round bolt).
  • a melt supply (not shown) is fed to two nozzles 2, 3. From these nozzles 2, 3 emerge two overlapping melt droplet jets 4, 5 which are directed towards a rotating substrate 6 of circular cross section.
  • the droplet jets 4, 5 are consolidated again on the substrate 6 or on the growing round bolt 1 (which can be pulled off in the direction of the arrow) and solidified to form a solid block 1. Additional nozzles through which particles can be injected into the droplet jets 4, 5 are indicated by numbers 7, 8.
  • FIG. 1 also indicates that different particles ( , 0) are injected into the droplet jets 4, 5.
  • the particle density indicated over the radius of the round bolt 1 shows that a composite bolt 1 is formed which consists of a core 9 and an outer layer 10 with different properties.
  • a particular advantage of the described method is that the transition from the core 9 to the outer layer 10 is smooth and there is no parting line in the preform 1, as is the case with older methods according to the prior art (for example roll cladding, powder metallurgical production). This avoids all the associated disadvantages, such as binding errors at the parting line, high quality assurance efforts, etc.
  • a round bolt 1 with a diameter of 300 mm was produced, the core 9 (diameter: 220 mm) of copper and the outer layer 10 (width: 40 mm) of copper and aluminum oxide.
  • a gas-metal ratio of 0.6 (inside) or 0.4 (outside) was chosen for the atomization.
  • the round bolt 1 was pressed into a rod with a diameter of 62 mm, the thickness of the outer layer 10 being 3 mm and the diameter of the core 9 being 56 mm.
  • Figure 2 shows a 500-fold enlargement of the deposition of aluminum oxide particles on the grain boundaries in a CuCrZr alloy, which forms the core of a preform.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
EP93113617A 1992-10-20 1993-08-26 Demi-produit à symétrie de révolution dont la section possède des propriétés variables Expired - Lifetime EP0593878B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4235303 1992-10-20
DE4235303A DE4235303A1 (de) 1992-10-20 1992-10-20 Rotationssymmetrisches Halbzeug mit über den Querschnitt variierenden Eigenschaften

Publications (2)

Publication Number Publication Date
EP0593878A1 true EP0593878A1 (fr) 1994-04-27
EP0593878B1 EP0593878B1 (fr) 1996-06-05

Family

ID=6470865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93113617A Expired - Lifetime EP0593878B1 (fr) 1992-10-20 1993-08-26 Demi-produit à symétrie de révolution dont la section possède des propriétés variables

Country Status (4)

Country Link
US (1) US5613187A (fr)
EP (1) EP0593878B1 (fr)
DE (2) DE4235303A1 (fr)
FI (1) FI100703B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20021835A0 (fi) * 2002-10-16 2002-10-16 Valtion Teknillinen Kuumamuokkausteräkset muotin inserttien ruiskumuovaukseen
US7564666B2 (en) * 2006-05-02 2009-07-21 Semiconductor Components Industries, L.L.C. Shunt protection circuit and method therefor
DE102006051936B4 (de) * 2006-11-01 2014-03-20 Zollern Bhw Gleitlager Gmbh & Co. Kg Verfahren zur Herstellung zweier miteinander verbundener Schichten und nach dem Verfahren herstellbares Funktionsbauteil
DE102007020891A1 (de) * 2007-05-04 2008-11-13 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Bremsscheibe und Verfahren zur Herstellung einer Bremsscheibe
DE102015116519A1 (de) 2015-09-29 2017-03-30 Thyssenkrupp Ag Vorrichtung und Verfahren zum Sprühkompaktieren
US20170216918A1 (en) * 2016-02-02 2017-08-03 Melissa E. Orme-Marmarelis Methods and systems for fabrication using multi-material and precision alloy droplet jetting

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681772A (en) * 1986-05-05 1987-07-21 General Electric Company Method of producing extended area high quality plasma spray deposits
EP0270265A1 (fr) * 1986-11-14 1988-06-08 Alcan International Limited Fabrication d'un composite métallique par pulvérisation de métal liquide
WO1992004475A1 (fr) * 1990-09-04 1992-03-19 Olin Corporation Incorporation de particules de ceramique dans une matrice a base de cuivre pour former un materiau composite
WO1992015721A1 (fr) * 1991-03-07 1992-09-17 Osprey Metals Limited Production de depot par projection

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB8507675D0 (en) * 1985-03-25 1985-05-01 Atomic Energy Authority Uk Metal product fabrication
US5164347A (en) * 1986-09-16 1992-11-17 Lanxide Technology Company, Lp Method for producing self-supporting ceramic bodies with graded properties
GB8622464D0 (en) * 1986-09-18 1986-10-22 British Petroleum Co Plc Graded structure composites
US4820358A (en) * 1987-04-01 1989-04-11 General Electric Company Method of making high strength superalloy components with graded properties
US5253697A (en) * 1989-01-16 1993-10-19 Les Bronzes D'industrie, Societe Anonyme Manufacture of articles consisting of a composite material
CA2036810A1 (fr) * 1990-03-02 1991-09-03 Thomas F. Sawyer Methode de faconnage d'articles faisant appel a des alliages de composition variable
US5240672A (en) * 1991-04-29 1993-08-31 Lanxide Technology Company, Lp Method for making graded composite bodies produced thereby

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681772A (en) * 1986-05-05 1987-07-21 General Electric Company Method of producing extended area high quality plasma spray deposits
EP0270265A1 (fr) * 1986-11-14 1988-06-08 Alcan International Limited Fabrication d'un composite métallique par pulvérisation de métal liquide
WO1992004475A1 (fr) * 1990-09-04 1992-03-19 Olin Corporation Incorporation de particules de ceramique dans une matrice a base de cuivre pour former un materiau composite
WO1992015721A1 (fr) * 1991-03-07 1992-09-17 Osprey Metals Limited Production de depot par projection

Also Published As

Publication number Publication date
FI934602A0 (fi) 1993-10-19
US5613187A (en) 1997-03-18
FI934602A (fi) 1994-04-21
DE4235303A1 (de) 1994-04-21
DE59302814D1 (de) 1996-07-11
FI100703B (fi) 1998-02-13
EP0593878B1 (fr) 1996-06-05

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