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DE689880C - Process for tinning slide bearings - Google Patents

Process for tinning slide bearings

Info

Publication number
DE689880C
DE689880C DE1938H0156117 DEH0156117D DE689880C DE 689880 C DE689880 C DE 689880C DE 1938H0156117 DE1938H0156117 DE 1938H0156117 DE H0156117 D DEH0156117 D DE H0156117D DE 689880 C DE689880 C DE 689880C
Authority
DE
Germany
Prior art keywords
tinning
copper
slide bearings
tin
copper layer
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
DE1938H0156117
Other languages
German (de)
Inventor
Franz Stock
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to DE1938H0156117 priority Critical patent/DE689880C/en
Application granted granted Critical
Publication of DE689880C publication Critical patent/DE689880C/en
Expired legal-status Critical Current

Links

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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
    • C23C2/08—Tin or alloys based thereon

Landscapes

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

Description

Verfahren zum Verzinnen von Gleitlagern Die Erfindung hat ein Verfahren zum Verzinnen der mit einer Schicht aus Kupfer ' oder einer Kupferlegierung versehenen Oberfläche von Gleitlagern zum Gegenstand. Die Verzinnung hat den Zweck, die Auftragung eines Lagermetalls, z. B. eines sog. Weißmetalls oder einer zinnarmen Lagerleglexung, vorzubereiten.Method of Tinning Slide Bearings The invention has a method for tinning those provided with a layer of copper or a copper alloy Surface of plain bearings to the object. The purpose of tinning is the application a bearing metal, e.g. B. a so-called white metal or a low-tin storage layer, prepare.

Bisher wurde die Oberfläche vor idem Verzinnen üblicherweise in einem Säurebad von anhaftendem Fett und anderen Unreimigkeiten, die einer Haftung des Zinns -entgegenstehen, gesäubert.So far, the surface was usually tinned in one Acid bath of adhering grease and other imperfections that could lead to adhesion of the Pewter-facing, cleaned.

Exfindungsgemäß erfolgt die Vorbehandlung der Kupferoberfläche für die Aufnahme des Zinns. auf die Weise, daß das Lager als positive Elektrode (Anode)' einer Zersetzungszelle geschaltet und die Kupferoberfläche dadurch elektrolytisch aufgexauht wird. Die Kupferschicht wird , dabei zweckmäßig vor der elektrolytischen Behandlung verhältnismäßig glatt ausgedreht odergebohrt.According to the present invention, the copper surface is pretreated for the inclusion of the tin. in such a way that the bearing acts as a positive electrode (anode) ' switched to a decomposition cell and the copper surface thereby electrolytic is raised. The copper layer is, expediently, before the electrolytic one Treatment turned or drilled relatively smooth.

Das elektrolytische Beizen von,Metallen ist an sich allgemein bekannt. Man hat es auch schon zum Entgasen von gewalztem Eisenblech bei der Herstellung von Weißblech angewendet. Die Erfindung demgqgenüber besteht darin, daß mit einer solchen elektrolytischen Vörbehandlung der Kupferoberfläche _ eines Gleitlagers für die Verzinnung die Belastbarkeit und Notlaufeigenschaft des Gleitlagers gegenüber .einem mit mechanisch aufgerauhter Oberfläche überraschend gesteigert wird. Dies hat seinen Grund darin, daß durch die elektrolytische Voxbehandlung Teile der .Kupferschicht herausgerissen werden, wodurch die mit dem Zinn in Verbindung kommende Oberfläche beträchtlich vergrößert und eine sehr gute Haftung durch regelrechte Verankerung des Zinns in der Kupferoberfläche erreicht wird. Dabei bildet sich in dieser Trennschicht eine Legierung von Kupfer und Zinn, die nach einem Verschleiß oder einem Auslaufen des auf die Verzinnung aufgetragenen Lagermetalls eine besonders gölte Notlaufeigenschaft besitzt.The electrolytic pickling of metals is generally known per se. It has also been used for degassing rolled iron sheets during manufacture applied by tinplate. The invention, however, is that with a such electrolytic pre-treatment of the copper surface of a plain bearing for the tin-plating, the load-bearing capacity and emergency running properties of the plain bearing are compared .one with a mechanically roughened surface is surprisingly increased. this The reason for this is that parts of the copper layer are caused by the electrolytic Vox treatment are torn out, whereby the surface coming into contact with the tin considerably enlarged and very good adhesion due to proper anchoring of tin in the copper surface is achieved. This forms in this separating layer an alloy of copper and tin that after wear or leakage The bearing metal applied to the tin plating has a particularly oiled emergency running property owns.

Claims (1)

PATENTANSPRÜCFIE: r. Verfahren zum Verzinnen der mit einer Kupferschicht versehenen Oberfläche von Gleitlagern, dadurch gekennzeichnet; daß vor dem Verzinnen das Lager als positive Elektrode (Anode) einer Zersetzungszelle geschaltet und die Oberfläche der Kupferschicht elektrolytisch aufgerauht wird. z. Verfahren nach Anspruch i, dadurch ;gekennzeichnet, daß die Kupferschicht vor der elektrolytischen Behandlung verhältnismäßig glatt bearbeitet wird.PATENT CLAIM: r. Process for tinning with a copper layer provided surface of plain bearings, characterized in that; that before tinning the bearing is connected as a positive electrode (anode) of a decomposition cell and the The surface of the copper layer is electrolytically roughened. z. Method according to claim i, characterized in that the copper layer before the electrolytic treatment is processed relatively smooth.
DE1938H0156117 1938-06-10 1938-06-10 Process for tinning slide bearings Expired DE689880C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1938H0156117 DE689880C (en) 1938-06-10 1938-06-10 Process for tinning slide bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1938H0156117 DE689880C (en) 1938-06-10 1938-06-10 Process for tinning slide bearings

Publications (1)

Publication Number Publication Date
DE689880C true DE689880C (en) 1940-04-05

Family

ID=7182314

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1938H0156117 Expired DE689880C (en) 1938-06-10 1938-06-10 Process for tinning slide bearings

Country Status (1)

Country Link
DE (1) DE689880C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298829B (en) * 1962-04-17 1969-07-03 Norton Co Process for the production of a superconducting niobium-tin laminated body by cold rolling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1298829B (en) * 1962-04-17 1969-07-03 Norton Co Process for the production of a superconducting niobium-tin laminated body by cold rolling

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