EP1889951A1 - Appareil et procédé pour l'anodisation de pièces à usiner - Google Patents

Appareil et procédé pour l'anodisation de pièces à usiner Download PDF

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Publication number
EP1889951A1
EP1889951A1 EP06090143A EP06090143A EP1889951A1 EP 1889951 A1 EP1889951 A1 EP 1889951A1 EP 06090143 A EP06090143 A EP 06090143A EP 06090143 A EP06090143 A EP 06090143A EP 1889951 A1 EP1889951 A1 EP 1889951A1
Authority
EP
European Patent Office
Prior art keywords
treated
elevations
jaw
titanium
intermediate part
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
EP06090143A
Other languages
German (de)
English (en)
Other versions
EP1889951B1 (fr
Inventor
Wolf-Thilo Fortak
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.)
Wolf-Thilo Fortak Industrieberatung und Techn Sevice fur Die Galvanotechnik
Original Assignee
Wolf-Thilo Fortak Industrieberatung und Techn Sevice fur Die Galvanotechnik
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 Wolf-Thilo Fortak Industrieberatung und Techn Sevice fur Die Galvanotechnik filed Critical Wolf-Thilo Fortak Industrieberatung und Techn Sevice fur Die Galvanotechnik
Priority to EP06090143A priority Critical patent/EP1889951B1/fr
Priority to AT06090143T priority patent/ATE486980T1/de
Priority to DE502006008231T priority patent/DE502006008231D1/de
Publication of EP1889951A1 publication Critical patent/EP1889951A1/fr
Application granted granted Critical
Publication of EP1889951B1 publication Critical patent/EP1889951B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/005—Apparatus specially adapted for electrolytic conversion coating
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/005—Contacting devices
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/06—Suspending or supporting devices for articles to be coated

Definitions

  • the invention relates to an apparatus and a method for the electrochemical treatment of metallic workpieces, including sheet-like, large and thin material to be treated of aluminum or aluminum alloys, by means of a method in which the workpieces are subjected to high electrical current.
  • the disadvantage here is once the inferior electrical conductivity (15 times lower than aluminum), so that previously titanium anodes are used only for smaller aluminum parts.
  • Another disadvantage is that build up uncontrolled contact bridges that lead to burns in Aluminium oppositionsgut.
  • the contact current is subject to fluctuations, with the result that the layer thickness of the layer produced by the anodization can not be exactly defined.
  • the DE 34 47 733 discloses a contactless anodic oxidation of aluminum.
  • the object of the invention is to realize a device for electrochemical treatment of sheet-like, large and thin material to be treated, in which a regular cleaning or stripping of the support frame or its parts, such as terminals, can be dispensed with. Furthermore, a minimum possible surface damage in the field of attachment and contacting of the material to be treated should be achieved.
  • an apparatus for wet chemical or electrolytic treatment of particular large, thin and sheet-like material is provided with clamping or support arms arranged jaws for the treated, wherein at least one jaw made of titanium or a titanium alloy and this titanium jaw directed to the treated with a surface Has elevations, so that the flow of current via contact points or contact edges of the surveys takes place.
  • the elevations are preferably formed pyramid-like with a tip.
  • a substantially punctiform contact can also be achieved by hemispherical-shaped elevations or by a corrugation.
  • An edge-shaped contacting is achieved with elevations with a prismatic shape with contact edges facing the item to be treated.
  • the surveys may be a thread profile.
  • the device described so far is particularly suitable for sheet-like, large and thin items to be treated made of aluminum or aluminum alloys, since usually the nipples are removed after separation of the anodization process by separation, it has in spatial structures where no separation of the terminal points is provided proven to place between the jaws and the jaws an intermediate part of aluminum or an aluminum alloy. This is preferably releasably connected to the respective jaw, so that it for Pickling is removable or handled as a "disposable item".
  • the intermediate part has a smooth surface on the side facing the clamping jaw and is provided with elevations on the side facing the material to be treated, preferably with small cones, cones, truncated cones and / or lamellae.
  • the non-anodized surface areas on the material to be treated are then formed very small area and not or only slightly visible.
  • a further embodiment provides for a rinsing possibility t in the form of grooves arranged on the surface of the clamping jaw from outer edge to outer edge.
  • the process stream for electrolytic treatment is conducted in a punctiform manner or over an edge into the material to be treated. This is achieved by the corresponding structuring of the surface of at least one titanium clamping jaw.
  • currents of 4 and more amps / contact point can be transferred during anodizing.
  • Clamping jaws with a cross-sectional area of 23 x 23 mm can be used to transfer currents of 300 amperes.
  • the treatment tub 11 of the anodizing unit may have a width of about 11 m and more inside, and a height of 2.5 m and more, to be used e.g. flat, large and thin material to be treated 6, such as aluminum foil, to be treated in the dimensions of 10 x 1.5 m.
  • the item to be treated 6 is attached to the clamping jaws 1, 2 between the two right and left arranged on a product carrier 12 support or clamping arms 13.
  • the product carrier 12 is arranged to be movable over the treatment trough 11. The supply of the anode current via the goods carrier 12, the support or clamping arms 13 in the jaws 1, 2 and from these into the material to be treated 6, for. an aluminum foil.
  • the jaws 1, 2 are in the frame shown for the introduction of items to be treated 6 in the treatment tub 11th the current-carrying transitions of aluminum product carrier 12 to the existing titanium or a titanium alloy support or clamping arms 13 and of these to the jaws 1, 2 for the treated material 6 using contactors 2 'made of titanium with a surface 3 with elevations 4 .
  • an oxide layer is also formed on its surface 3 during the anodization process. The layer thickness moves in the nanometer range, so that in the described structuring of the surface 3 and at contact pressures between the jaws 1, 2 of 1.5 kp / mm 2 and more overcome this oxide layer and the current flow is ensured controlled.
  • a jaw 2 is shown in detail. While the surface of the clamping jaw 1 is planar, the surface 3 of the illustrated jaw 2 has a structured shape by elevations 4. This can also be the case with both jaws 1, 2. In the figure, the elevations 4 are only partially drawn. Provided is preferably a full-surface trimming the surface 3 with elevations. 4
  • the distance between adjacent elevations should preferably be between 0.1 - 4 mm and / or the elevations have the height of 0.3 - 4 mm.
  • surveys with a pyramid-like tip have proven.
  • the intermediate part 7 preferably used in the case of space-shaped material to be treated 6 between the clamping jaw 2, the surface of which has elevations 4 and the item to be treated 6.
  • the intermediate part 7 consists of aluminum or an aluminum alloy and is detachably connected to the jaw 2.
  • the intermediate part 7 has on the side facing the clamping jaw 2 a smooth surface and thus represents an analogue contact transition, as has been described above in the case of a flat product 6.
  • the anodizing stream is selectively transferred from the titanium clamping jaw 2 into the aluminum intermediate part 7.
  • the intermediate part 7 is coated during the anodization with an oxide layer, so that it requires a pickling in a known manner or the intermediate part 7 is exchanged and disposed of the oxidized.
  • the intermediate part 7 and the jaw 2 are releasably connected to each other.
  • the clamping jaw 2 has at least one angled bracket 10 which on one side comprises the intermediate part 7 for producing a detachable connection, wherein the free leg of the bracket 9 engages between the elevations 9 of the surface 8 of the intermediate part 7, without to tower over this in the direction of the item 6.
  • the elevations 9 are shown in the figure only partially.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Processing Of Meat And Fish (AREA)
  • Electrolytic Production Of Metals (AREA)
EP06090143A 2006-08-18 2006-08-18 Appareil et procédé pour l'anodisation de pièces à usiner Active EP1889951B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06090143A EP1889951B1 (fr) 2006-08-18 2006-08-18 Appareil et procédé pour l'anodisation de pièces à usiner
AT06090143T ATE486980T1 (de) 2006-08-18 2006-08-18 Vorrichtung und verfahren zum anodisieren von behandlungsgut
DE502006008231T DE502006008231D1 (de) 2006-08-18 2006-08-18 Vorrichtung und Verfahren zum Anodisieren von Behandlungsgut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06090143A EP1889951B1 (fr) 2006-08-18 2006-08-18 Appareil et procédé pour l'anodisation de pièces à usiner

Publications (2)

Publication Number Publication Date
EP1889951A1 true EP1889951A1 (fr) 2008-02-20
EP1889951B1 EP1889951B1 (fr) 2010-11-03

Family

ID=37984750

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06090143A Active EP1889951B1 (fr) 2006-08-18 2006-08-18 Appareil et procédé pour l'anodisation de pièces à usiner

Country Status (3)

Country Link
EP (1) EP1889951B1 (fr)
AT (1) ATE486980T1 (fr)
DE (1) DE502006008231D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012218025A1 (de) * 2012-10-02 2014-04-03 Manfred Ingelsberger Haltevorrichtung und Träger mit Komponenten aus Aluminium- und Titanwerkstoffen
DE102019008115A1 (de) * 2019-11-14 2021-05-20 WTF Galvanotechnik GmbH & Co. KG Vorrichtung zum Halten von Werkstücken bei der elektrolytischen Behandlung
EP3916134A1 (fr) * 2020-05-26 2021-12-01 Gramm Technik GmbH Dispositif de maintien pour tiges de piston

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019008114A1 (de) * 2019-11-14 2021-05-20 WTF Galvanotechnik GmbH & Co. KG Vorrichtung zum Halten von Werkstücken bei der elektrolytischen Behandlung
EP3822394A1 (fr) 2019-11-14 2021-05-19 WTF Galvanotechnik GmbH & Co. KG Dispositif de retenue de pièces lors d'un traitement électrolytique
EP3822393A1 (fr) 2019-11-14 2021-05-19 WTF Galvanotechnik GmbH & Co. KG Dispositif de retenue de pièces lors d'un traitement électrolytique

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2340963A1 (de) 1973-08-13 1975-03-13 Alusuisse Verfahren und vorrichtung zum oxidieren einer folie aus aluminium oder einer seiner legierungen
DE2525245A1 (de) 1974-06-08 1975-12-11 Pilot Pen Co Ltd Vorrichtung zur kontinuierlichen elektrolytischen behandlung eines langgestreckten gebildes aus aluminium oder einer aluminiumlegierung
GB1468118A (en) 1975-09-27 1977-03-23 Trident Plastics Ltd Clamping arrangement
US4085997A (en) 1977-03-30 1978-04-25 The Boeing Company Anodize clamp
DE3447733A1 (de) 1983-12-27 1985-06-27 Permelec Electrode Ltd., Fujisawa, Kanagawa Verfahren zur elektrolytischen behandlung von metall durch energiezufuhr mittels fluessigkeit
US4615785A (en) 1985-05-13 1986-10-07 Pulido Robert J Clip for anodizing bath and method of using the clip
DE9411523U1 (de) 1993-09-08 1994-09-22 Stohrer Doduco Gmbh & Co Vorrichtung zum anodischen Oxidieren von Werkstücken
DE10145554C1 (de) 2001-09-14 2002-11-28 Atotech Deutschland Gmbh Vorrichtung zur naßchemischen und elektrolytischen Behandlung von sehr dünnem und flachem Behandlungsgut
DE10245182A1 (de) 2002-09-26 2004-04-01 Manfred Ingelsberger Eloxiergestell mit Komponenten aus Titanwerkstoffen

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2340963A1 (de) 1973-08-13 1975-03-13 Alusuisse Verfahren und vorrichtung zum oxidieren einer folie aus aluminium oder einer seiner legierungen
DE2525245A1 (de) 1974-06-08 1975-12-11 Pilot Pen Co Ltd Vorrichtung zur kontinuierlichen elektrolytischen behandlung eines langgestreckten gebildes aus aluminium oder einer aluminiumlegierung
GB1468118A (en) 1975-09-27 1977-03-23 Trident Plastics Ltd Clamping arrangement
US4085997A (en) 1977-03-30 1978-04-25 The Boeing Company Anodize clamp
DE3447733A1 (de) 1983-12-27 1985-06-27 Permelec Electrode Ltd., Fujisawa, Kanagawa Verfahren zur elektrolytischen behandlung von metall durch energiezufuhr mittels fluessigkeit
US4615785A (en) 1985-05-13 1986-10-07 Pulido Robert J Clip for anodizing bath and method of using the clip
DE9411523U1 (de) 1993-09-08 1994-09-22 Stohrer Doduco Gmbh & Co Vorrichtung zum anodischen Oxidieren von Werkstücken
DE10145554C1 (de) 2001-09-14 2002-11-28 Atotech Deutschland Gmbh Vorrichtung zur naßchemischen und elektrolytischen Behandlung von sehr dünnem und flachem Behandlungsgut
DE10245182A1 (de) 2002-09-26 2004-04-01 Manfred Ingelsberger Eloxiergestell mit Komponenten aus Titanwerkstoffen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012218025A1 (de) * 2012-10-02 2014-04-03 Manfred Ingelsberger Haltevorrichtung und Träger mit Komponenten aus Aluminium- und Titanwerkstoffen
WO2014053563A3 (fr) * 2012-10-02 2014-08-07 Manfred Ingelsberger Dispositif de fixation et support comportant des composants en matériaux d'aluminium et de titane
DE102019008115A1 (de) * 2019-11-14 2021-05-20 WTF Galvanotechnik GmbH & Co. KG Vorrichtung zum Halten von Werkstücken bei der elektrolytischen Behandlung
EP3916134A1 (fr) * 2020-05-26 2021-12-01 Gramm Technik GmbH Dispositif de maintien pour tiges de piston

Also Published As

Publication number Publication date
DE502006008231D1 (de) 2010-12-16
EP1889951B1 (fr) 2010-11-03
ATE486980T1 (de) 2010-11-15

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