EN On Carbon Steel

Do you have a process for plating low-carbon steel with a high-phosphorus electroless nickel?


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Q. Do you have a process for plating low-carbon steel with a high-phosphorus electroless nickel? M.E.

 

A. There are many different processes suggested for plating low-carbon steel with EN. The following process is taken from the book Electroless Nickel, by Wolfgang Riedel. The book is out of print but you may be able to find a copy on the Internet.

  1. Alkaline cleaning (60–90°C, 5–30 min)
  2. Rinsing (room temperature)
  3. Electrocleaning (ambient to 60°C, 2–5 min, polarity reversal, 45–90 ASF, 2/3 cathodic)
  4. Rinsing (room temperature)
  5. Pickling in 1:1 HC1 or more dilute (30 sec1 min).

The author also suggests some variations on this sequence.

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