EP0250355A1 - Verfahren zum Herstellen von rotationssymmetrischen Hohlkörpern - Google Patents

Verfahren zum Herstellen von rotationssymmetrischen Hohlkörpern Download PDF

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Publication number
EP0250355A1
EP0250355A1 EP87730013A EP87730013A EP0250355A1 EP 0250355 A1 EP0250355 A1 EP 0250355A1 EP 87730013 A EP87730013 A EP 87730013A EP 87730013 A EP87730013 A EP 87730013A EP 0250355 A1 EP0250355 A1 EP 0250355A1
Authority
EP
European Patent Office
Prior art keywords
mandrel
hollow body
collecting surface
movement
produced
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.)
Withdrawn
Application number
EP87730013A
Other languages
German (de)
English (en)
French (fr)
Inventor
Wolfgang Prof.Dr.-Ing. Reichelt
Peter Dr.-Ing. Voss-Spilker
Karl-Heinz Ing. Häusler
Horst Ing. Stinnertz
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.)
Vodafone GmbH
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0250355A1 publication Critical patent/EP0250355A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/003—Moulding by spraying metal on a surface
    • 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
    • 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
    • C23C4/14—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying for coating elongate material
    • C23C4/16—Wires; Tubes
    • 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
    • C23C4/18—After-treatment
    • C23C4/185—Separation of the coating from the substrate

Definitions

  • the invention relates to a method for producing rotationally symmetrical hollow bodies, in particular pipes or tube blanks, by spraying a atomized melt of a metal or an alloy onto a cylindrical collecting surface, between which and the spray mist a relative movement in the circumferential direction of the hollow body to be produced is generated and the sprayed metal continuously detaches from the cylindrical collecting surface.
  • a round mandrel that rotates about its longitudinal axis and is supported at both ends has been used as the collecting surface when a tube is to be produced by spraying.
  • the mandrel must have at least the length of the hollow body to be produced. If the spray jet is not as wide as the length of the finished hollow body, the mandrel must be moved in the longitudinal direction in addition to its rotational movement relative to the spray head. The distance by which the mandrel is moved in the longitudinal direction corresponds to the length of the finished hollow body. If several spray heads are used, the length of the longitudinal movement of the mandrel depends on the distance between the spray heads.
  • the hollow body produced by spraying on the mandrel as a collecting surface which can currently be up to 8 meters long, must be detached from the more than 8 meter long mandrel after completion.
  • a further disadvantage is that an at least as long mandrel must be used when producing a long hollow body. This mandrel must be preheated in its entire length before each spraying operation, which requires a corresponding device and also means high energy consumption.
  • the object of the invention is to propose a method which avoids the disadvantages of the known procedure.
  • This new method according to the invention consists in that - starting from the method mentioned at the beginning - the sprayed metal or alloy is continuously detached from the cylindrical collecting surface.
  • the invention is based on the idea that it is possible to produce hollow bodies of practically unlimited length and in an economical manner if a continuous mode of operation is used.
  • the continuous mode of operation has not been considered so far because the difficulties encountered - namely the continuous detachment of the workpiece from the support - were considered insurmountable.
  • the method can be carried out in various ways.
  • the devices required for this differ accordingly.
  • the device shown in FIG. 1 has a crucible 2 with molten metal 1 or an alloy, from which the metal or the alloy is sprayed onto a collecting surface 8 with the aid of a nebulizing system consisting of a nozzle 4 and an annular gas supply 3.
  • the collecting surface 8 is a horizontally arranged, cantilevered round mandrel, which is set in rotation by a rotary drive (not shown) about its longitudinal axis.
  • the hollow body 6 can be removed from the mandrel 8, it is, as illustrated at B, injured in an oscillating movement running in its longitudinal direction.
  • the device required for this which, like the rotary drive, is not shown in the drawing, is located on the section of the mandrel 8 that runs to the right (in the figure).
  • the oscillation device provides not only for the detachment of the hollow body 6 produced by spraying from the mandrel 8, but also for a transport movement in direction A. This is achieved in that the part of the oscillation movement directed in direction A is carried out at a higher speed than that in the opposite direction.
  • the process is carried out under protective gas in a container 9.
  • the hollow body 6 running from the conical (not shown) tapered free end 8a of the mandrel 8 passes through a gas seal indicated at 7, which prevents oxygen from penetrating into the interior of the housing prevented.
  • the material that does not deposit on the mandrel but falls into the lower part of the housing is carried away by a screw conveyor 10.
  • the finished workpiece 6, which becomes longer and longer as the manufacturing process progresses, is supported in the area leading to the left on a roller table (not shown) which also allows the workpiece to be rotated in the circumferential direction.
  • the collecting surface namely the mandrel
  • the hollow-body-shaped workpiece is detached and transported away by oscillating movements which are given to the mandrel or by means of an abrasion device.
  • the mandrel can also have a position deviating from the horizontal.
  • the mandrel can be inclined in the discharge direction if the peeling and discharge effect is thereby increased or improved. It is also conceivable that Arrange the mandrel vertically and remove the finished workpiece downwards. Such a device is shown in Fig. 2. The same parts are numbered the same.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Physical Vapour Deposition (AREA)
  • Forging (AREA)
  • Powder Metallurgy (AREA)
EP87730013A 1986-05-27 1987-02-05 Verfahren zum Herstellen von rotationssymmetrischen Hohlkörpern Withdrawn EP0250355A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3617833 1986-05-27
DE3617833A DE3617833C1 (de) 1986-05-27 1986-05-27 Verfahren zum Herstellen von rotationssymmetrischen Hohlkoerpern

Publications (1)

Publication Number Publication Date
EP0250355A1 true EP0250355A1 (de) 1987-12-23

Family

ID=6301745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87730013A Withdrawn EP0250355A1 (de) 1986-05-27 1987-02-05 Verfahren zum Herstellen von rotationssymmetrischen Hohlkörpern

Country Status (4)

Country Link
US (1) US4777995A (ja)
EP (1) EP0250355A1 (ja)
JP (1) JPS62279049A (ja)
DE (1) DE3617833C1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299944A2 (fr) * 1987-07-14 1989-01-18 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Procédé de fabrication de cylindre multicouche et cylindre obtenu
WO1992015721A1 (en) * 1991-03-07 1992-09-17 Osprey Metals Limited Production of spray deposits
AU638676B2 (en) * 1988-06-06 1993-07-08 Osprey Metals Limited Spray deposition of layered composites

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02502199A (ja) * 1987-11-16 1990-07-19 ナウチノ‐プロイズボドストベンノエ　オビエディネニエ　ポ　ビプスク　メハニチェスコゴ　スバロチノゴ　オボルドバニア（エヌペーオー“ベーイーエスペー”） ガス‐熱コーティング処理機械
US5171360A (en) * 1990-08-30 1992-12-15 University Of Southern California Method for droplet stream manufacturing
US5097586A (en) * 1990-12-14 1992-03-24 General Electric Company Spray-forming method of forming metal sheet
DE4316672C1 (de) * 1993-05-13 1994-07-28 Mannesmann Ag Einrichtung zur Herstellung von metallischen Körpern durch Aufsprühen
US5746844A (en) * 1995-09-08 1998-05-05 Aeroquip Corporation Method and apparatus for creating a free-form three-dimensional article using a layer-by-layer deposition of molten metal and using a stress-reducing annealing process on the deposited metal
US5617911A (en) * 1995-09-08 1997-04-08 Aeroquip Corporation Method and apparatus for creating a free-form three-dimensional article using a layer-by-layer deposition of a support material and a deposition material
US5718951A (en) * 1995-09-08 1998-02-17 Aeroquip Corporation Method and apparatus for creating a free-form three-dimensional article using a layer-by-layer deposition of a molten metal and deposition of a powdered metal as a support material
US5787965A (en) * 1995-09-08 1998-08-04 Aeroquip Corporation Apparatus for creating a free-form metal three-dimensional article using a layer-by-layer deposition of a molten metal in an evacuation chamber with inert environment
US5711826A (en) * 1996-04-12 1998-01-27 Crs Holdings, Inc. Functionally gradient cladding for nuclear fuel rods
DE19740245A1 (de) * 1997-09-12 1999-03-18 Heidelberger Druckmasch Ag Thermisches Spritzverfahren für Trägerkörper und Vorrichtung zur Durchführung des Verfahrens
FI20021835A0 (fi) * 2002-10-16 2002-10-16 Valtion Teknillinen Kuumamuokkausteräkset muotin inserttien ruiskumuovaukseen
DE102006061652A1 (de) * 2006-12-27 2008-07-03 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Beschichten eines Hohlkörpers
KR101456837B1 (ko) * 2008-10-08 2014-11-04 가부시키가이샤 알박 증발 재료 및 증발 재료의 제조 방법
DE102010060362A1 (de) * 2010-11-04 2012-05-10 Linde Aktiengesellschaft Verfahren zum Herstellen eines Rohres
DE102015116519A1 (de) 2015-09-29 2017-03-30 Thyssenkrupp Ag Vorrichtung und Verfahren zum Sprühkompaktieren

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281225A (en) * 1940-02-15 1942-04-28 Bleakley Corp Method of producing molds
DE810223C (de) * 1949-04-14 1951-08-06 Deutsche Edelstahlwerke Ag Verfahren zur Herstellung metallischer Formkoerper
US2639490A (en) * 1948-08-12 1953-05-26 Joseph B Brennan Formation of metal strip under controlled pressures
FR1120320A (fr) * 1954-03-06 1956-07-04 Jenaer Glaswerk Schott & Gen Procédé et dispositif pour la fabrication en continu de tubes en verre ou en l'autres matières fluidifiables sous l'effet de la chaleur
US3409068A (en) * 1965-07-01 1968-11-05 Phelps Dodge Copper Prod Method of continuously casting tubes using a rotating mandrel
DE2002358A1 (de) * 1969-01-20 1970-08-27 Ceskoslovenska Akademie Ved Verfahren zur Herstellung von Rohren durch Schleuderguss
GB1599392A (en) * 1978-05-31 1981-09-30 Osprey Metals Ltd Method and apparatus for producing workable spray deposits
FR2499901A1 (fr) * 1981-02-13 1982-08-20 Thoratec Lab Corp Appareil et procede de fabrication d'un tube multicouche
EP0188994A1 (de) * 1984-12-21 1986-07-30 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen eines metallischen Blockes

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2281225A (en) * 1940-02-15 1942-04-28 Bleakley Corp Method of producing molds
US2639490A (en) * 1948-08-12 1953-05-26 Joseph B Brennan Formation of metal strip under controlled pressures
DE810223C (de) * 1949-04-14 1951-08-06 Deutsche Edelstahlwerke Ag Verfahren zur Herstellung metallischer Formkoerper
FR1120320A (fr) * 1954-03-06 1956-07-04 Jenaer Glaswerk Schott & Gen Procédé et dispositif pour la fabrication en continu de tubes en verre ou en l'autres matières fluidifiables sous l'effet de la chaleur
US3409068A (en) * 1965-07-01 1968-11-05 Phelps Dodge Copper Prod Method of continuously casting tubes using a rotating mandrel
DE2002358A1 (de) * 1969-01-20 1970-08-27 Ceskoslovenska Akademie Ved Verfahren zur Herstellung von Rohren durch Schleuderguss
GB1599392A (en) * 1978-05-31 1981-09-30 Osprey Metals Ltd Method and apparatus for producing workable spray deposits
FR2499901A1 (fr) * 1981-02-13 1982-08-20 Thoratec Lab Corp Appareil et procede de fabrication d'un tube multicouche
EP0188994A1 (de) * 1984-12-21 1986-07-30 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen eines metallischen Blockes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0299944A2 (fr) * 1987-07-14 1989-01-18 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Procédé de fabrication de cylindre multicouche et cylindre obtenu
EP0299944A3 (fr) * 1987-07-14 1989-12-06 CENTRE DE RECHERCHES METALLURGIQUES CENTRUM VOOR RESEARCH IN DE METALLURGIE Association sans but lucratif Procédé de fabrication de cylindre multicouche et cylindre obtenu
AU638676B2 (en) * 1988-06-06 1993-07-08 Osprey Metals Limited Spray deposition of layered composites
WO1992015721A1 (en) * 1991-03-07 1992-09-17 Osprey Metals Limited Production of spray deposits

Also Published As

Publication number Publication date
US4777995A (en) 1988-10-18
JPS62279049A (ja) 1987-12-03
DE3617833C1 (de) 1987-09-03

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Inventor name: REICHELT, WOLFGANG, PROF.DR.-ING.

Inventor name: VOSS-SPILKER, PETER, DR.-ING.

Inventor name: HAEUSLER, KARL-HEINZ, ING.

Inventor name: STINNERTZ, HORST, ING.