Steel Processing

 

De Nora manufactures a variety of different anode coatings to meet the varied and demanding performance expectations of the plating industry. De Nora ’s DSA® (Dimensionally Stable Anode) anode coatings are used in many applications, including but not limited to, electro-galvanizing (high speed continuous sheet strip and wire plating), balancing anodes for soluble anode baths and in metal recovery cells for waste water treatment.

For more detailed information on specific applications of De Nora anodes click on the links below:

Electrogalvanizing Anodes – EGL

Zinc plating of steel sheet in a continuous steel processing line. This sheet is used primarily for the automotive and appliance markets.
De Nora ’s DSA® anodes offer significant advantages over competing soluble and insoluble production systems. Compared to soluble anode systems in zinc sulfate electrolytes, DSA® anodes:

  • Improve plating uniformity
  • Reduce energy consumption with smaller anode-to-strip gaps
  • Improve line operations due to better gap stabilty
  • Permit higher plating current densities

Relative to other insoluble anode systems, DSA® anodes offer:

  • Power cost savings from constant anode-to-strip gap
  • Insolubility does not require expensive contaminant removal
  • Better quality product with fewer pollution problems
TiFace™ is an anode surface treatment developed to repair anodes that were damaged during operation in an electro-galvanizing high-speed, continuous strip, plating line. The treatment, unlike traditional approaches at the time, recovered the integrity of the anode surface thereby allowing the anodes to be recoated. In addition, the TiFace™ treatment doubled the surface area of the anodes thereby prolonging the life of the coating. This technology revolutionized the high-speed, strip steel electrogalvanizing industry.
 

Pickling Anodes

In recent years DSA® anodes have been successfully used as a direct replacement of conventional anodes made of Lead (Pb) cladding over copper or steel substrates. The use of De Nora ’s inert DSA® type anodes eliminates the risk of any additional toxic or hazardous substances being introduced to the process line. This thereby reduces or eliminates costs associated with hazardous waste disposal and the worries of Lead contamination on the finished product.

 

Tin Plate Anodes for Tin Line

The use of DSA® anodes for Tin Lines is another important use of the titanium anodes with iridium oxide anode coatings. These anode are typically used for balancing (plating out excess tin) of the dissolved tin in a Methane Sulfonic Acid (MSA) bath or in a Phenyl Sulfonic Acid ( PSA ) bath or for tin plate lines which use DSA® anodes as the main anode for the tin plating.

 

 

 
 

De Nora phone number: +39 02 21291, Milano - Italy
Email: industriedenora@denora.it

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