DE313258C - - Google Patents

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Publication number
DE313258C
DE313258C DENDAT313258D DE313258DA DE313258C DE 313258 C DE313258 C DE 313258C DE NDAT313258 D DENDAT313258 D DE NDAT313258D DE 313258D A DE313258D A DE 313258DA DE 313258 C DE313258 C DE 313258C
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DE
Germany
Prior art keywords
lead
iron
steel
leading
contact
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.)
Active
Application number
DENDAT313258D
Other languages
German (de)
Publication of DE313258C publication Critical patent/DE313258C/de
Active legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C23COATING 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
    • C23CCOATING 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
    • C23C18/00Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
    • C23C18/54Contact plating, i.e. electroless electrochemical plating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Description

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN AM 7. JUL11919ISSUE 7 JUL11919

REICH S PATENTAMTREICH S PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

r 313258 — KLASSE 48 a GRUPPE 13 r 313258 - CLASS 48 a GROUP 13

BERLIN-BURGER EISENWERK A.-G. in BERLIN.BERLIN-BURGER EISENWERK A.-G. in Berlin.

Kontaktverfahren zum Verbleien von Eisen und Stahl.Contact method for the leading of iron and steel.

Patentiert im Deutschen Reiche vom 20. Juni 1918 ab.Patented in the German Empire on June 20, 1918.

Nach der Erfindung wird eine mittelstarke Verbleiung von Eisen und Stahl dadurch erzielt, daß nian den bekannten Bleikontaktbädern oder anderen sauren oder alkalischen Bleilösungen, welche einen Überschuss an freier Säure bzw. freiem Alkali enthalten, außer den Kontaktmetallen Bleisuperoxyd alsDepolisator hinzufügt. Dieses gibt bei seiner Zersetzung Sauerstoff ab, der mit dem am Arbeitsstück auftretenden Wasserstoff wahrscheinlich Wasser bildet und so die Bildung eines glatten Niederschlages günstig beeinflußt.According to the invention, a moderate lead of iron and steel is achieved by that nian the well-known lead contact baths or other acidic or alkaline lead solutions, which have an excess contain free acid or free alkali, in addition to the contact metals, lead peroxide as a depoliser adds. When it decomposes, this releases oxygen, which with that on the workpiece occurring hydrogen probably forms water and so the formation of a smooth Precipitation favorably influenced.

Claims (1)

Patent-Anspruch:Patent claim: Kontaktverfahren zum Verbleien von Eisen und Stahl, gekennzeichnet durch den Zusatz einer Sauerstoff leicht abgebenden Verbindung, wie Bleisuperoxyd, als Depolisator zu dem Bad.Contact method for the leading of iron and steel, characterized by the addition of an oxygen-releasing compound, such as lead peroxide, as Depolisator to the bathroom.
DENDAT313258D Active DE313258C (en)

Publications (1)

Publication Number Publication Date
DE313258C true DE313258C (en)

Family

ID=566136

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT313258D Active DE313258C (en)

Country Status (1)

Country Link
DE (1) DE313258C (en)

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