EP0538974A1 - Procédé de fabrication de corps à symétrie de révolution - Google Patents

Procédé de fabrication de corps à symétrie de révolution Download PDF

Info

Publication number
EP0538974A1
EP0538974A1 EP92250307A EP92250307A EP0538974A1 EP 0538974 A1 EP0538974 A1 EP 0538974A1 EP 92250307 A EP92250307 A EP 92250307A EP 92250307 A EP92250307 A EP 92250307A EP 0538974 A1 EP0538974 A1 EP 0538974A1
Authority
EP
European Patent Office
Prior art keywords
diameter
base
nozzle
spray
controller
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
EP92250307A
Other languages
German (de)
English (en)
Other versions
EP0538974B1 (fr
Inventor
Norbert Uebber
Hans-Joachim Kreymann
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 EP0538974A1 publication Critical patent/EP0538974A1/fr
Application granted granted Critical
Publication of EP0538974B1 publication Critical patent/EP0538974B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • 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, as specified by the preamble of claim 1, and a device for carrying out the method according to the preamble of claim 4.
  • faults can occur, whether due to caking of metal droplets at the nozzle or wear or chipping of refractory material at the pouring out of the melt reservoir or due to changing operating conditions from melt to melt, which change the constancy of the mass flow of the metal.
  • a changed mass flow can, however, be the reason for a change in the geometry of the product produced.
  • the invention has for its object to achieve an improvement in the known method and the device with a view to a greater constant diameter.
  • the invention will be explained in more detail below with reference to the device shown in the figure.
  • the invention is based on a known device in which the melt located in the storage vessel 1 emerges through 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 the base 3 and to generate a rotary body by the rotary movement of the base 3.
  • the position of the spray plane 4 and the diameter of the product to be produced are thus defined in the starting position.
  • the drawing shows the base 3 in the lowered position and the spray plane 4 is formed by the free end face of the body 5 already produced.
  • the base 3 is located on a rod 6 on which a transport device 7 engages and causes the rod 6 and thus the base 3 to be lowered.
  • the nozzle 2 and the support 3 are located within a chamber 9 filled with inert gas.
  • the height of the support 3 or the spray plane 4 is detected by a transmitter 10 emitting measuring beams in connection with a receiver 11, which are arranged such that the support 3 or the bolt 5 lies in the beam path 12 of the measuring device 10, 11.
  • the procedure in detail is described in DE 39 16 115 A1.
  • a transmitter 14 for generating a light band 16, which is parallel to the base 3, and a receiver 15 with light-sensitive cells are arranged opposite the transmitter 14 in the wall of the chamber 9.
  • the transmitter 14 and the receiver 15 are arranged such that they are as close as possible below the spray level 4 and the light band 16 detects the outer contour 5 ', that is to say the diameter of the body 5.
  • a paired arrangement of transmitters 14 and receivers 15 can be recommended, which can be adjusted by shifting to the respective intended diameter of the body 5 such that they detect opposite sides of the cylindrical body 5 as seen in longitudinal section. If the temperature of the cylindrical body produced is high enough, ie emits rays due to its temperature, which in the receiver 15, for. B.
  • the one or more receivers 15 are connected to the controller 13.
  • the measured values of the receiver 15, which characterize the diameter of the body 5, are incorporated into the existing control loop or the existing control via the controller 13. This inclusion can take place very early, since the diameter measurement is located just below the spray level.
  • the diameter of the body 5 to be produced is initially given by the distance of the spray plane 4 from the nozzle 2 and the pendulum angle of the nozzle. If, at a defined distance from the spray plane 4, a diameter which is too small or too large compared to the nominal diameter is registered, the position of the spray plane is to be raised or lowered to the extent that it corresponds to the deviation. When the spray conditions change, the diameter determination thus raises or lowers the original target position of the spray plane 4 to the target dimension in the sense of a correction of the diameter, specifically by a changed removal speed of the base 3.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Physics & Mathematics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Powder Metallurgy (AREA)
  • Coating Apparatus (AREA)
  • Spray Control Apparatus (AREA)
  • Moulding By Coating Moulds (AREA)
  • Continuous Casting (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
EP92250307A 1991-10-22 1992-10-21 Procédé de fabrication de corps à symétrie de révolution Expired - Lifetime EP0538974B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4135194 1991-10-22
DE4135194A DE4135194C1 (fr) 1991-10-22 1991-10-22

Publications (2)

Publication Number Publication Date
EP0538974A1 true EP0538974A1 (fr) 1993-04-28
EP0538974B1 EP0538974B1 (fr) 1995-12-06

Family

ID=6443372

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92250307A Expired - Lifetime EP0538974B1 (fr) 1991-10-22 1992-10-21 Procédé de fabrication de corps à symétrie de révolution

Country Status (8)

Country Link
US (1) US5297613A (fr)
EP (1) EP0538974B1 (fr)
JP (1) JPH05220564A (fr)
KR (1) KR930007551A (fr)
AT (1) ATE131215T1 (fr)
DE (2) DE4135194C1 (fr)
DK (1) DK0538974T3 (fr)
TW (1) TW200414B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5980604A (en) * 1996-06-13 1999-11-09 The Regents Of The University Of California Spray formed multifunctional materials
US8891583B2 (en) * 2000-11-15 2014-11-18 Ati Properties, Inc. Refining and casting apparatus and method
EP2137329B1 (fr) 2007-03-30 2016-09-28 ATI Properties LLC Four de fusion comprenant un émetteur d'électrons de plasma ionique à décharge à fil
CN102145387A (zh) * 2011-03-24 2011-08-10 江苏豪然喷射成形合金有限公司 双喷嘴扫描斜喷式圆柱坯喷射成形装置
CN102506732A (zh) * 2011-10-28 2012-06-20 江苏豪然喷射成形合金有限公司 喷射成形圆柱锭坯动态尺寸的在线检测系统及检测方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225732A1 (fr) * 1985-11-12 1987-06-16 Osprey Metals Limited Production de dépôts projetés de métaux liquides
EP0398455A1 (fr) * 1989-05-16 1990-11-22 MANNESMANN Aktiengesellschaft Méthode et installation pour la fabrication de corps à symétrie de révolution

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0225732A1 (fr) * 1985-11-12 1987-06-16 Osprey Metals Limited Production de dépôts projetés de métaux liquides
EP0398455A1 (fr) * 1989-05-16 1990-11-22 MANNESMANN Aktiengesellschaft Méthode et installation pour la fabrication de corps à symétrie de révolution

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOM Bd. 41, Nr. 10, Oktober 1989, WARRENDALE,PA,US Seiten 23 - 28 P. MATHUR 'process,control,modeling and applications of spray casting' *
NASA TECH BRIEF CR165418 März 1981, LEWIS RESEARCH CENTER,CLEVELAND,US 'programable plasma-spray system' *

Also Published As

Publication number Publication date
DE4135194C1 (fr) 1993-01-28
DE59204593D1 (de) 1996-01-18
ATE131215T1 (de) 1995-12-15
US5297613A (en) 1994-03-29
KR930007551A (ko) 1993-05-20
TW200414B (fr) 1993-02-21
DK0538974T3 (da) 1996-01-08
EP0538974B1 (fr) 1995-12-06
JPH05220564A (ja) 1993-08-31

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