PL450076A1 - Method for electrochemical production of zinc coatings - Google Patents

Method for electrochemical production of zinc coatings

Info

Publication number
PL450076A1
PL450076A1 PL450076A PL45007624A PL450076A1 PL 450076 A1 PL450076 A1 PL 450076A1 PL 450076 A PL450076 A PL 450076A PL 45007624 A PL45007624 A PL 45007624A PL 450076 A1 PL450076 A1 PL 450076A1
Authority
PL
Poland
Prior art keywords
electrochemical production
zinc coatings
bath
zinc
berberine
Prior art date
Application number
PL450076A
Other languages
Polish (pl)
Inventor
Aleksandra URBAN
Original Assignee
Dam-Rob Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa
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 Dam-Rob Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa filed Critical Dam-Rob Spółka Z Ograniczoną Odpowiedzialnością Spółka Komandytowa
Priority to PL450076A priority Critical patent/PL450076A1/en
Publication of PL450076A1 publication Critical patent/PL450076A1/en

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
    • C23C22/24—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 hexavalent chromium compounds
    • 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
    • C25D11/38—Chromatising
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/22—Electroplating: Baths therefor from solutions of zinc

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób elektrochemicznego wytwarzania powłok cynkowych polegający na wstępnym oczyszczaniu chemicznym w kąpieli przy zastosowaniu mieszania hydrodynamicznego, charakteryzujący się tym, że nakłada się warstwę konwersyjną na powłokę cynkową z dodatkiem nanostruktur haloizytowych z upakowaną berberyną w ilości 0,1 do 1 g/l, korzystnie 0,5 g/l w kąpieli pasywacji o składzie: Kwas azotowy 0,5% do 2,5%, Siarczan wodorotlenek chromu 0,75% do 2,5%, Fluorek amonu do 0,2%, Kwas siarkowy do 0,2% w temperaturze 20°C do 30°C przez 1 min i poddaje się procesowi suszenia.The subject of the application is a method of electrochemical production of zinc coatings consisting in preliminary chemical cleaning in a bath using hydrodynamic mixing, characterized in that a conversion layer is applied to the zinc coating with the addition of halloysite nanostructures with packed berberine in an amount of 0.1 to 1 g/l, preferably 0.5 g/l in a passivation bath with the composition: Nitric acid 0.5% to 2.5%, Chromium hydroxide sulphate 0.75% to 2.5%, Ammonium fluoride up to 0.2%, Sulphuric acid up to 0.2% at a temperature of 20°C to 30°C for 1 min and subjected to a drying process.

PL450076A 2024-10-18 2024-10-18 Method for electrochemical production of zinc coatings PL450076A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL450076A PL450076A1 (en) 2024-10-18 2024-10-18 Method for electrochemical production of zinc coatings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL450076A PL450076A1 (en) 2024-10-18 2024-10-18 Method for electrochemical production of zinc coatings

Publications (1)

Publication Number Publication Date
PL450076A1 true PL450076A1 (en) 2026-04-20

Family

ID=99477174

Family Applications (1)

Application Number Title Priority Date Filing Date
PL450076A PL450076A1 (en) 2024-10-18 2024-10-18 Method for electrochemical production of zinc coatings

Country Status (1)

Country Link
PL (1) PL450076A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL289936A1 (en) * 1991-04-17 1992-10-19 Galwanika Spoldzielnia Pracy Bath for chromating zinc coating to olive colour
PL289898A1 (en) * 1991-04-15 1992-10-19 Galwanika Spoldzielnia Pracy Chromating bath for zinc coatings
PL395423A1 (en) * 2011-06-24 2013-01-07 Polmag Spólka Z Ograniczona Odpowiedzialnoscia Method for obtaining chromate conversion decorative and protective coatings, magnesium alloys-based castings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL289898A1 (en) * 1991-04-15 1992-10-19 Galwanika Spoldzielnia Pracy Chromating bath for zinc coatings
PL289936A1 (en) * 1991-04-17 1992-10-19 Galwanika Spoldzielnia Pracy Bath for chromating zinc coating to olive colour
PL395423A1 (en) * 2011-06-24 2013-01-07 Polmag Spólka Z Ograniczona Odpowiedzialnoscia Method for obtaining chromate conversion decorative and protective coatings, magnesium alloys-based castings

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