DE886087C - Process for anodic oxidation of endless workpieces - Google Patents

Process for anodic oxidation of endless workpieces

Info

Publication number
DE886087C
DE886087C DEV1983D DEV0001983D DE886087C DE 886087 C DE886087 C DE 886087C DE V1983 D DEV1983 D DE V1983D DE V0001983 D DEV0001983 D DE V0001983D DE 886087 C DE886087 C DE 886087C
Authority
DE
Germany
Prior art keywords
electrolyte
anodic oxidation
workpieces
endless
channels
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
DEV1983D
Other languages
German (de)
Inventor
Hans Roehrig
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium Werke 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
Priority claimed from DEV1984D external-priority patent/DE878882C/en
Application filed by Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to DEV1983D priority Critical patent/DE886087C/en
Application granted granted Critical
Publication of DE886087C publication Critical patent/DE886087C/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
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • 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

Description

Verfahren zur anodischen Oxydation von endlosen Werkstücken In der Patentschrift 87888z sind ein Verfahren und eine Vorrichtung beschrieben worden, bei der die anodische Oxydation nicht in Bottichen durchgeführt wird, sondern bei der die zu oxydierenden Bünder und Drähte durch Rohre oder durch schwach geneigte Rinnen hindurchgeführt werden, während der Elektrolyt diese Rohre oder Rinnen durchströmt. Bei der Anwendung von Rinnen war ein Zwischenbehälter vorgesehen, in dem der Draht über Rollen oder andere Führungselemente von einer Rinne zur anderen umgelenkt wird. In diesem Bottich ist der Elektrolyt von einer spezifisch schwereren Flüssigkeit unterschichtet. Es hat sich herausgestellt, daß die <Anordnung vorteilhaft auch derart ausgebildet werden kann, daß .der Elektrolyt von einer spezifisch leichteren, nicht leibenden Flüssigkeit überschichtet wird. In diesem Falle ist der Bottich durch eine quer zur Fortbewegungsrichtung des Drahtes oder des Bandes vorgesehenen Zwischenwand unterteilt, die vom Boden aus etwas weiter nach oben reicht als der Spiegel der Elektrolytschichten. Die Rinnen tauchen in den Bottich mit ihrem unteren Ende nur so weit ein, daß sie die Oberfläche des Elektrolyts nicht berühren und daß der zu oxydierende Draht von der einen Rinne bis zur anderen Rinne durch Umlenkrollen über die Scheidewand hinweg durch die überschichtete Flüssigkeit, beispielsweise 01, hindurchgeführt wird. Es hat sich als zweckmäßig erwiesen, jede der Rinnen kurz vor ihrem unteren Ende mit einer Durchbrechung zu versehen, durch die der Elektrolyt in die .jeder Rinne zugeordnete Bottichhälfte abfließt. Bei der beschriebenen Anordnung ist im Gegensatz zu der in der Patentschrift 878882 niedergelegten Vorrichtung die Umlenkung vereinfacht.Process for the anodic oxidation of endless workpieces In the patent specification 87888z a process and a device have been described in which the anodic oxidation is not carried out in vats, but in which the bundles and wires to be oxidized are passed through pipes or through slightly inclined gutters, while the electrolyte flows through these pipes or troughs. When using channels, an intermediate container was provided in which the wire is deflected from one channel to the other via rollers or other guide elements. In this vat, the electrolyte is underlain by a specifically heavier liquid. It has been found that the arrangement can advantageously also be designed in such a way that the electrolyte is covered by a specifically lighter, non-abiding liquid. In this case, the tub is subdivided by an intermediate wall provided transversely to the direction of movement of the wire or the belt, which from the bottom extends somewhat further upwards than the level of the electrolyte layers. The bottom of the troughs dip into the tub only so far that they do not touch the surface of the electrolyte and that the wire to be oxidized is carried from one trough to the other by means of pulleys over the septum through the layered liquid, for example 01 , is passed through. It has proven to be expedient to provide each of the troughs with an opening shortly before its lower end, through which the electrolyte flows into the tub half assigned to each trough. In the described arrangement, in contrast to the device laid down in patent specification 878882 , the deflection is simplified.

Claims (2)

PATENTANSPRÜCHR: i. Vorrichtung zur anodischen Oxydation von endlosen Werkstücken unter Verwendung von durch den. Elektrolyt durchflossenen Rohren oder Rinnen und eines zwischen. diese Rinnen geschalteten Gefäßes nach Patent 878 882, dadurch gekennzeichnet, daß in diesem Gefäß, das in seinem- unteren Teil durch eine vom Boden nach oben reichende Trennwand unterteilt ist, über demElektrolyt eine nicht leitende spezifisch leichtere und mit ein Elektrolyt nicht mischbare Flüssigkeit geschichtet ist, durch die hindurch der Draht mit Hilfe von Rollen oder anderen Führungselementen von der einen zur anderen Rinne geleitet wird. PATENT CLAIM: i. Device for anodic oxidation of endless Workpieces using by the. Electrolyte flowed through tubes or Gutters and one between. these channels switched vessel according to patent 878 882, characterized in that in this vessel, which is in his lower part by a dividing wall extending upwards from the bottom, above the electrolyte a non-conductive, specifically lighter liquid that cannot be mixed with an electrolyte is layered, through which the wire with the help of rollers or other Guide elements is passed from one to the other channel. 2. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß die Rinnen kurz vor ihrem unteren Ende mit Durchbrechungen versehen sind, durch die der Elektrolyt in die zugeordneten Abteilungen des Zwischenbehälters abfließt.2. Arrangement according to Claim i, characterized in that the channels shortly before their lower end with Openings are provided through which the electrolyte in the assigned departments of the intermediate container flows off.
DEV1983D 1944-04-18 1944-04-21 Process for anodic oxidation of endless workpieces Expired DE886087C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV1983D DE886087C (en) 1944-04-18 1944-04-21 Process for anodic oxidation of endless workpieces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEV1984D DE878882C (en) 1944-04-18 1944-04-18 Process and device for anodic oxidation of wires and tapes using the pull-through process
DEV1983D DE886087C (en) 1944-04-18 1944-04-21 Process for anodic oxidation of endless workpieces

Publications (1)

Publication Number Publication Date
DE886087C true DE886087C (en) 1953-08-10

Family

ID=26001161

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV1983D Expired DE886087C (en) 1944-04-18 1944-04-21 Process for anodic oxidation of endless workpieces

Country Status (1)

Country Link
DE (1) DE886087C (en)

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