EP0398455B1 - Verfahren und Einrichtung zur Herstellung rotationssymmetrischer Körper - Google Patents

Verfahren und Einrichtung zur Herstellung rotationssymmetrischer Körper Download PDF

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Publication number
EP0398455B1
EP0398455B1 EP90250111A EP90250111A EP0398455B1 EP 0398455 B1 EP0398455 B1 EP 0398455B1 EP 90250111 A EP90250111 A EP 90250111A EP 90250111 A EP90250111 A EP 90250111A EP 0398455 B1 EP0398455 B1 EP 0398455B1
Authority
EP
European Patent Office
Prior art keywords
plane
substrate
transmitter
metal
spraying
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
EP90250111A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0398455A1 (de
Inventor
Franz Dipl.-Ing. Keutgen
Erich Dipl.-Ing. Willems
Siegbert Wagner
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 EP0398455A1 publication Critical patent/EP0398455A1/de
Application granted granted Critical
Publication of EP0398455B1 publication Critical patent/EP0398455B1/de
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
    • C23C4/18—After-treatment
    • C23C4/185—Separation of the coating from the substrate
    • 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

Definitions

  • the invention relates to a method for producing rotationally symmetrical bodies by spraying a molten metal, in particular a molten steel.
  • the production of round products by spray compacting is known, e.g. from EP-A1 0 225 732, EP-A1 0 188 944 or GB-PS 1 599 392. All processes have in common that the melt is atomized with the aid of a nozzle and the metal droplets thus produced are placed on a rotating base, be it a plate with a vertical axis of rotation or a base with an inclined or horizontal axis of rotation.
  • the geometry and dimensions of the product produced depend on the amount of melt carried out per unit of time, the pendulum angle of the nozzle, the distance of the nozzle from the support and the speed at which the support is moved away from the nozzle or past the nozzle.
  • a method is preferred in which the metal droplets are sprayed onto a horizontally lying plate, which rotates about a vertical axis, and the plate is lowered vertically.
  • the invention has for its object to improve the known methods so that the body produced has a constant diameter over its entire length.
  • the invention is based on a method for producing rotationally symmetrical bodies by spraying a molten metal, collecting the metal droplets thus produced on a rotating base, the base being fully covered with metal droplets after a complete rotation and moving the base while maintaining the rotation, from the catch position (spray level) and is characterized according to the invention in that the position of the spray level is continuously determined during the supply of metal droplets and the speed of movement of the base and / or the mass flow of the metal droplets are regulated such that a predetermined target position of the spray level is maintained.
  • the position of the spray plane is detected by an optically operating transmitter-receiver unit.
  • a further embodiment of the invention is characterized in that a light band emitted by the transmitter lies parallel to a plane of the direction of withdrawal of the rotationally symmetrical body.
  • Essential in The meaning of the invention is that the light band cuts the body outside of a surface of the spray plane acted upon by the metal droplets.
  • a modification of the invention is possible in that instead of the optically operating transceiver unit, which also includes systems with magnetic wave fronts for detection, one is used which is also arranged arbitrarily in the space above the spray level and works on an acoustic basis .
  • the invention is based on a device consisting of a storage vessel and a nozzle for the melt to be atomized, a rotating base arranged at a distance from the nozzle and movable by the nozzle by means of a transport device for collecting the atomized melt, whereby the nozzle and the pad are arranged in a chamber.
  • This device is further developed according to the invention in that a transmitter and a receiver are arranged in the area of the spray level to the side of the base, such that the base or spray level lies in the beam path of the transmitter and that the receiver is equipped with a controller and processing the measured value of the receiver the controller is connected to the transport device and / or an adjusting device for the melt flow rate.
  • the melt to be atomized is in a storage vessel 1.
  • the melt emerges from an opening in the bottom of the storage vessel 1 and is atomized into fine droplets in the nozzle 2.
  • the nozzle 2 is suspended and the pendulum area is indicated by the pendulum angle ⁇ .
  • This makes it possible to coat an adjustable area on a base 3.
  • the position of spray level 4 is thus defined in the starting position.
  • the drawing shows the base 3 in the lowered position and the Spray level 4 is formed by the free end face of the body 5 already produced.
  • the base 3 is supported by a rod 6.
  • a transport device 7 engages the rod 6, which enables the rod 6 and thus the base 3 to be lowered.
  • the body 5 produced is held in the desired position by a guide 8.
  • the nozzle 2 and the base 3 are located within a chamber 9 filled with inert gas.
  • means 10, 11 for detecting the position of the spray level 4 are now fixed in the chamber 9, in or on the side walls, at the level of the spray level 4 - that is, either at the start of the spraying process of the support 3 or during the spraying process of the free end face of the body 5 - arranged laterally next to the body 5 to be generated.
  • the means 10, 11 consist of a transmitter 10 and a receiver 11 of known type.
  • the transmitter 10 emits non-scattering measuring beams in the form of a band 12, preferably in the form of laser beams.
  • the band 12 lies in a plane parallel to the lowering direction of the base 3 in a region such that the light band 12 emitted by the transmitter 10 cuts the body 5 outside a surface of the spray plane 4 which is affected by the metal droplets.
  • the transmitter 10 is opposite the receiver 11 with the light-sensitive cells correspondingly assigned to the radiation band.
  • the position of the base 3 or the spray plane 4 can be determined directly from the optical "assignment" of the light-sensitive cells.
  • the measured values of the receiver 11 are fed to a controller 13, which evaluates the measured values and compares them with a target value for the position of the spray plane 4. Deviations from the target value are corrected by a corresponding control of the transport device 7 in the sense of a corresponding increase or decrease in the lowering speed of the rod 6.
  • Adjustment means are either the drive of a slide closure or a stopper rod of the storage vessel or, in the event that the filling level is decisive for the flow rate with a constant flow cross-section of the opening of the storage vessel 1, a corresponding change in the amount of melt to be fed into the storage vessel.
  • the invention thus prevents the spraying plane from moving out of its predetermined position due to an irregular lowering speed or changing the mass flow of the metal droplets and thus entailing a reduction or enlargement of the predetermined diameter.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Powder Metallurgy (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Spray Control Apparatus (AREA)
EP90250111A 1989-05-16 1990-05-02 Verfahren und Einrichtung zur Herstellung rotationssymmetrischer Körper Expired - Lifetime EP0398455B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3916115 1989-05-16
DE3916115A DE3916115A1 (de) 1989-05-16 1989-05-16 Verfahren und einrichtung zur herstellung rotationssymmetrischer koerper

Publications (2)

Publication Number Publication Date
EP0398455A1 EP0398455A1 (de) 1990-11-22
EP0398455B1 true EP0398455B1 (de) 1994-01-19

Family

ID=6380842

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250111A Expired - Lifetime EP0398455B1 (de) 1989-05-16 1990-05-02 Verfahren und Einrichtung zur Herstellung rotationssymmetrischer Körper

Country Status (6)

Country Link
US (1) US5054539A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0398455B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0323055A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE100500T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3916115A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK0398455T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5259593A (en) * 1990-08-30 1993-11-09 University Of Southern California Apparatus for droplet stream manufacturing
DE4135194C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1991-10-22 1993-01-28 Mannesmann Ag, 4000 Duesseldorf, De
US5176874A (en) * 1991-11-05 1993-01-05 General Electric Company Controlled process for the production of a spray of atomized metal droplets
JP2808082B2 (ja) * 1994-08-25 1998-10-08 天龍製鋸株式会社 草払い機用円板カッター
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
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
US5669433A (en) * 1995-09-08 1997-09-23 Aeroquip Corporation Method for creating a free-form metal three-dimensional article using a layer-by-layer deposition of a molten 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
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
US5954112A (en) * 1998-01-27 1999-09-21 Teledyne Industries, Inc. Manufacturing of large diameter spray formed components using supplemental heating
CN103243324B (zh) * 2013-05-23 2015-08-26 沈阳航空航天大学 一种多自由度数控冶金射流直接成形的制备方法和设备
CN103737002B (zh) * 2014-01-24 2016-05-18 江苏理工学院 金属坯斜喷雾化移动装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE225732C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
GB1599392A (en) * 1978-05-31 1981-09-30 Osprey Metals Ltd Method and apparatus for producing workable spray deposits
US4334495A (en) * 1978-07-11 1982-06-15 Trw Inc. Method and apparatus for use in making an object
FR2575577B1 (fr) * 1984-12-28 1989-07-07 Bull Sa Transducteur magnetique d'ecriture/lecture pour enregistrement perpendiculaire
ATE71988T1 (de) * 1985-11-12 1992-02-15 Osprey Metals Ltd Herstellen von schichten durch zerstaeuben von fluessigen metallen.

Also Published As

Publication number Publication date
DE3916115C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-12-10
EP0398455A1 (de) 1990-11-22
US5054539A (en) 1991-10-08
DE3916115A1 (de) 1990-11-22
DK0398455T3 (da) 1994-02-28
ATE100500T1 (de) 1994-02-15
JPH0323055A (ja) 1991-01-31

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