Patent · US Active

Method for producing of a galvanic coating

US7771578B2 · kind B2 · utility

2Cited by
12References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 2, 2005
Grant dateAug 10, 2010
Priority date
Expiry dateAug 23, 2027

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC25D17/10
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

In a method for production of a corrosion resistant and/or oxidation resistant coating, at least one metal of the platinum group or an alloy thereof is galvanically deposited onto a surface of a substrate, and thereafter the thusly galvanically coated substrate is aluminized. In a first stage of the galvanic deposition process a current magnitude applied for the galvanizing is increased continuously or step-wise beginning from an initial value up to a maximum value, and in a second stage of the galvanic deposition process the current magnitude applied for the galvanizing is maintained constant at the maximum value. The galvanic deposition of the or each metal of the platinum group or the corresponding alloy may be carried out using an open-celled or open-mesh or porous anode.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.