[go: up one dir, main page]

DE615911C - Process for the production of protective coatings on zinc and galvanized objects - Google Patents

Process for the production of protective coatings on zinc and galvanized objects

Info

Publication number
DE615911C
DE615911C DET44533D DET0044533D DE615911C DE 615911 C DE615911 C DE 615911C DE T44533 D DET44533 D DE T44533D DE T0044533 D DET0044533 D DE T0044533D DE 615911 C DE615911 C DE 615911C
Authority
DE
Germany
Prior art keywords
zinc
production
protective coatings
bath
galvanized
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
DET44533D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DET44533D priority Critical patent/DE615911C/en
Application granted granted Critical
Publication of DE615911C publication Critical patent/DE615911C/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
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/40—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing molybdates, tungstates or vanadates

Landscapes

  • Chemical & Material Sciences (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)
  • Chemical Treatment Of Metals (AREA)
  • Coating With Molten Metal (AREA)

Description

Verfahren zur Herstellung von Schutzüberzügen auf Zink und verzinkten Gegenständen Das Patent 613 024 betrifft ein Verfahren zur Herstellung von Schutzüberzügen auf Zink und verzinkten Gegenständen ohne Anwendung von elektrischem Strom, bei welchem die Gegenstände in ein Bad aus Schwermetallsulfaten eingetaucht werden, dem Ammoniummolybdat zugesetzt ist, wobei der Gehalt an Schwerinetallsulfat größer ist als derjenige von Ammoniummolybdat.Process for the production of protective coatings on zinc and galvanized Articles Patent 613,024 relates to a method for producing protective coatings on zinc and galvanized objects without the use of electricity in which the objects are immersed in a bath of heavy metal sulfates, the ammonium molybdate is added, the content of heavy metal sulfate being greater is than that of ammonium molybdate.

Als sehr vorteilhaft hat sich nun herausgestellt, bereits gebrauchte Bäder durch Zusatz von saurem, weinsaurem Kaliumsalz (Weinstein), zweckmäßig bis zu. einer Menge von 3°/00, aufzufrischen. Hierdurch. wird einmal eine bessere und klarere Färbung erzielt und ferner das sich bildende Zinkhydroxyd in Lösung gehalten.It has now proven to be very advantageous to use already used Baths by adding acidic, tartaric potassium salt (tartar), expediently up to to. an amount of 3 ° / 00, to be replenished. Through this. will be a better one and Achieved clearer color and also kept the zinc hydroxide formed in solution.

Die Auffrischung des Bades durch Zusatz von Wein Lein kann mehrere Male wiederholt werden, bis das Bad völlig verschlammt und damit verbraucht ist. Es ist weiterhin. empfehlenswert, gleichzeitig mit der Zugabe vorn Weinstein das Bad durch geringe Mengen Schwermetallsulfat und Ammömiummolybdat zu verstärken, wobei das prozentuale Verhältnis des Anunoniummolybdat- zum Schwermetallsulfatgehalt in der _lursprünglich angesetzten Tauchlösung zu beachten ist.Freshening up the bath by adding wine flax can do several things Repeat times until the bath is completely silted up and used up. It is still. recommendable, at the same time as the Weinstein encore To strengthen the bath with small amounts of heavy metal sulphate and ammonium molybdate, where the percentage ratio of the ammonium molybdate to the heavy metal sulfate content must be observed in the originally used immersion solution.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren. zur Herstellung von Schutzüberzügen. auf Zink und verzinkten Gegenständen nach Patent 613 024, gekennzeichnet durch die Verwendung eines Bades, in dem zum Auffrischen saures, wejnsaures Kaliumsalz (Weinstein) enthalten ist. PATENT CLAIMS: i. Procedure. for the production of protective coatings. on zinc and galvanized objects according to patent 613 024, characterized by the Use of a bath in which acidic, white-acid potassium salt (tartar) is used to refresh is included. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daB der Gehalt des Bades an Weinstein bis zu 3000 beträgt.2. The method according to claim i, characterized in that the content of the bath at Weinstein is up to 3000.
DET44533D 1933-03-30 1933-03-30 Process for the production of protective coatings on zinc and galvanized objects Expired DE615911C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET44533D DE615911C (en) 1933-03-30 1933-03-30 Process for the production of protective coatings on zinc and galvanized objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET44533D DE615911C (en) 1933-03-30 1933-03-30 Process for the production of protective coatings on zinc and galvanized objects

Publications (1)

Publication Number Publication Date
DE615911C true DE615911C (en) 1935-07-15

Family

ID=7561784

Family Applications (1)

Application Number Title Priority Date Filing Date
DET44533D Expired DE615911C (en) 1933-03-30 1933-03-30 Process for the production of protective coatings on zinc and galvanized objects

Country Status (1)

Country Link
DE (1) DE615911C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854367A (en) * 1954-08-19 1958-09-30 Second Bank State Street Trust Composition and method for producing protective coatings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2854367A (en) * 1954-08-19 1958-09-30 Second Bank State Street Trust Composition and method for producing protective coatings

Similar Documents

Publication Publication Date Title
DE621890C (en) Process for the production of layers on objects made of iron and zinc
DE2650989C2 (en) Process for the treatment of aluminum surfaces by oxidation with subsequent compaction
DE827149C (en) Process for the production of coatings on iron, zinc and their alloys
DE413875C (en) Process for the production of coatings on aluminum or aluminum alloys by oxidation
AT133115B (en) Process for the production of corrosion-resistant coatings on light metals.
DE615911C (en) Process for the production of protective coatings on zinc and galvanized objects
DE745704C (en) Process for the production of clear and colorless oxide layers on aluminum and its alloys
DE898383C (en) Zinc cyanide bath and process for the electrolytic deposition of shiny zinc coatings
DE712877C (en) Process for the production of black-colored, corrosion-resistant protective layers on the surface of objects made of aluminum or aluminum alloys
DE3118794A1 (en) METHOD FOR TREATING THE SURFACE OF ZINC, CADMIUM AND ITS ALLOYS
DE615665C (en) Process for the production of protective coatings on zinc and galvanized objects
DE480720C (en) Process for providing metal that consists predominantly or entirely of aluminum with an irregularly speckled coating
AT144637B (en) Process for anodic treatment of objects made of aluminum or aluminum alloys.
DE692124C (en) Process for the electrolytic oxidation of iron and steel
DE613024C (en) Process for the production of protective coatings on zinc and galvanized objects
DE883545C (en) Process to improve the corrosion resistance of iron and steel
DE2154938C3 (en) Process for surface pretreatment of steel prior to direct white enamelling
DE622585C (en) Process for the production of colored aluminum oxide layers
AT148139B (en) Process for producing a protective layer on metals and alloys.
DE883382C (en) Process for coating zinc with a protective coating
DE492707C (en) Process for the production of metal coatings on objects made of aluminum and magnesium-free aluminum alloys
DE622821C (en) Process for coloring aluminum oxide coatings
DE729837C (en) Process for the production of oxidic surface layers on objects made of magnesium
DE1446513A1 (en) Process for the production of a colored corrosion-resistant coating on zinc and cadmium
AT127368B (en) Process for generating electrolytic precipitates of platinum group metals.