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DE806508C - Form anode for the galvanic application of metallic layers on flat or slightly curved surfaces - Google Patents

Form anode for the galvanic application of metallic layers on flat or slightly curved surfaces

Info

Publication number
DE806508C
DE806508C DEP4120A DEP0004120A DE806508C DE 806508 C DE806508 C DE 806508C DE P4120 A DEP4120 A DE P4120A DE P0004120 A DEP0004120 A DE P0004120A DE 806508 C DE806508 C DE 806508C
Authority
DE
Germany
Prior art keywords
pins
flat
plate
curved surfaces
slightly curved
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
Application number
DEP4120A
Other languages
German (de)
Inventor
Willi Specht
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Priority to DEP4120A priority Critical patent/DE806508C/en
Application granted granted Critical
Publication of DE806508C publication Critical patent/DE806508C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C25D17/10—Electrodes, e.g. composition, counter electrode
    • C25D17/12—Shape or form

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Description

Die Erfindung befaßt sich mit einer Formanode für das galvanische Aufbringen von metallischen Schichten auf ebene oder leicht gekrümmte Flächen, insbesondere für die galvanische Verchromung von Werkstücken.The invention is concerned with a shaped anode for the galvanic Application of metallic layers on flat or slightly curved surfaces, in particular for the galvanic chrome plating of workpieces.

Der Erfindung liegt die Aufgabe zugrunde, einen möglichst gleichmäßigen metallischen Niederschlag, z. B. Chromniederschlag, auf Werkstücke aufzubringen. Dabei ist zu berücksichtigen, daß z. B. bei der Verchromung von ebenen Flächen starke Kantenwirkungen auftreten, wodurch die Gleichmäßigkeit der aufzubringenden Schicht gefährdet ist.The invention is based on the object of providing a uniform as possible metallic precipitate, e.g. B. Chrome deposit to apply to workpieces. It should be noted that z. B. strong when chrome-plating flat surfaces Edge effects occur, thereby reducing the evenness of the layer to be applied endangered is.

Erfindungsgemäß besteht die neue Formanode aus einer Bleiplatte, auf welcher konzentrisch Stifte aus Blei angeordnet sind, deren Abstand vom zu behandelnden Werkstück im Hinblick auf die der Erfindung zugrunde liegende Aufgabe so gewählt ist, daß er nach den Rändern des Werkstücks hin zunimmt. Die Länge der Stifte fällt von der Mitte der zu behandelnden Platte nach außen stufenförmig ab; dadurch ist der Abstand dieser Stifte dort am größten, wo die Stromdichte am höchsten, und an Orten kleinster Stromdichte am kleinsten. Um die Bleiplatte selbst in ihrer Wirkung auszuschalten, wird sie zweckmäßig mit einer Platte aus dem unter der warenzeichenrechtlich geschützten Bezeichnung Igelit bekannten Stoff abgedeckt, durch welche die Stifte hindurchgreifen. Die Stromzuführung erfolgt zweckmäßig über breite Flachkupferbänder, die mit der Bleiplatte fest verlötet sind.According to the invention, the new shaped anode consists of a lead plate which concentric pins made of lead are arranged, their distance from the to be treated Workpiece selected in view of the object underlying the invention is that it increases towards the edges of the workpiece. The length of the pins falls from the center of the plate to be treated outwards in steps; thereby is the distance between these pins is greatest where the current density is highest, and at Locations of the smallest current density the smallest. About the lead plate itself in its effect off, it is expedient with a plate from the under the trademark law protected name Igelit known substance covered by which the pins reach through. The power supply is expediently carried out via wide flat copper strips, which are firmly soldered to the lead plate.

Ein Vorteil der Erfindung besteht darin, daß eine N acharbeitung der galvanisch behandelten Schicht nicht mehr erforderlich ist und unnötige Anhäufungen von aufzubringendem Material vermieden werden.An advantage of the invention is that a reworking of the electroplated layer is no longer required and unnecessary accumulations of the material to be applied can be avoided.

In der Zeichnung ist eine Ausführungsform der Erfindung dargestellt. Mit i ist eine Bleiplatte bezeichnet, die über die Kupferschiene 5 und die mit ihr verbundene Kupferplatte 2 gespeist wird. Mit 3 sind, wie bei 4 dargestellt, auf konzentrische Ringe der Bleiplatte i angebrachte Stifte aus Blei bezeichnet. Mit 7 ist ein schematisch angedeuteter Kolbenboden bezeichnet. Je nach der Form des zu behandelnden Werkstückes wird die Länge der Stifte im Sinne der Erfindung jeweils bestimmt.In the drawing, an embodiment of the invention is shown. With a lead plate i is referred to, which over the copper bar 5 and the one with her connected copper plate 2 is fed. With 3, as shown at 4, on Concentric rings of the lead plate i indicated pins made of lead. With 7 is a schematically indicated piston head. Depending on the shape of the workpiece to be treated is the length of the pins within the meaning of the invention certainly.

Claims (4)

PATEN TA NS PR t'CHE: i. Formanode für das galvanische Aufbringen von metallischen Schichten auf ebene oder leicht gekrümmte Flächen, insbesondere für die galvanische Verchromung von Werkstücken, wie Kolbenböden o. dgl., dadurch gekennzeichnet, daß die Formanode aus einer Platte (i) mit im Hinblick auf die gewünschte Dicke, insbesondere gleichmäßige Dicke der Schicht verteilten und in verschiedenem Abstand zum Werkstück angeordneten Stiften (3) besteht. PATEN TA NS P R t'CHE: i. Shaped anode for the galvanic application of metallic layers on flat or slightly curved surfaces, in particular for the galvanic chrome plating of workpieces, such as piston heads or the like, characterized in that the shaped anode consists of a plate (i) with, with regard to the desired thickness, In particular, there is a uniform thickness of the layer distributed and arranged at different distances from the workpiece pins (3). 2. Formanode nach Anspruch i, dadurch gekennzeichnet, daß die Stifte (3) in gleicher Anzahl auf konzentrischen Kreisen der Platte (i) angeordnet sind. 2. Form anode according to claim i, characterized in that the pins (3) in the same number on concentric Circles of the plate (i) are arranged. 3. Formanode nach Anspruch i und 2, dadurch gekennzeichnet, daß der Abstand der Stifte (3) vom Werkstück (7) nach den Rändern des Werkstückes hin größer wird. 3. molded anode according to claim i and 2, characterized characterized in that the distance between the pins (3) and the workpiece (7) is towards the edges the workpiece becomes larger. 4. Formanode nach Anspruch i bis 3, dadurch gekennzeichnet, daß die aus Blei bestehende Platte (i) durch Isolierstoff, vorzugsweise durch den unter der warenzeichenrechtlich geschützten Bezeichnung Igelit bekannten Stoff (6) abgedeckt ist.4. molded anode according to claim i to 3, characterized in that that the plate (i) made of lead by insulating material, preferably by the Substance known under the trademark Igelit (6) is covered.
DEP4120A 1949-09-10 1949-09-10 Form anode for the galvanic application of metallic layers on flat or slightly curved surfaces Expired DE806508C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP4120A DE806508C (en) 1949-09-10 1949-09-10 Form anode for the galvanic application of metallic layers on flat or slightly curved surfaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP4120A DE806508C (en) 1949-09-10 1949-09-10 Form anode for the galvanic application of metallic layers on flat or slightly curved surfaces

Publications (1)

Publication Number Publication Date
DE806508C true DE806508C (en) 1951-06-14

Family

ID=7359289

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP4120A Expired DE806508C (en) 1949-09-10 1949-09-10 Form anode for the galvanic application of metallic layers on flat or slightly curved surfaces

Country Status (1)

Country Link
DE (1) DE806508C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033988B (en) * 1954-11-13 1958-07-10 Fritz Breit Anode arrangement, holder and device for raising and lowering the anodes for the production of dimensionally accurate, contour-conforming, galvanically applied hard chrome coatings
DE1055913B (en) * 1956-04-23 1959-04-23 Schmidt Gmbh Karl Arrangement of the anodes for the galvanizing of ring grooves that run parallel to one another, especially in pistons for internal combustion engines and compressors
WO2006053877A1 (en) * 2004-11-17 2006-05-26 Siemens Aktiengesellschaft Method for monitoring an electrochemical treatment process and an electrode arrangement suited for carrying out this method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033988B (en) * 1954-11-13 1958-07-10 Fritz Breit Anode arrangement, holder and device for raising and lowering the anodes for the production of dimensionally accurate, contour-conforming, galvanically applied hard chrome coatings
DE1055913B (en) * 1956-04-23 1959-04-23 Schmidt Gmbh Karl Arrangement of the anodes for the galvanizing of ring grooves that run parallel to one another, especially in pistons for internal combustion engines and compressors
WO2006053877A1 (en) * 2004-11-17 2006-05-26 Siemens Aktiengesellschaft Method for monitoring an electrochemical treatment process and an electrode arrangement suited for carrying out this method

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