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Need to plate acid copper to 200 microns without roughness

Hello everyone,

I want to plate 200 microns of copper on an Aluminium cylinder, followed by a 10 micron coating of silver. I'm using an initial alkaline cyanide copper for the first 5 microns and then acid copper plating with 125 A for 2.5 hrs, for the remaining thickness, but the finish which I get is very rough with visible dots. Please guide me about how to go in this process.

Xavier Jones
electrical equipments manufacturer - Tuticorin, TamilNadu, India
2003

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Please look into the process control parameters . There is no reason why it cannot be done. Filtration, anode and bath purity come to mind.

Khozem Vahaanwala
Saify Ind

Bengaluru, Karnataka, India

2003

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Dear Mr. Jones,

In your letter you have not cleared the procedure of plating. Are you plating the job in stationary position or in rotary system ? To achieve the better finish in copper plating implies the rotary system.

Avnissh Puri
- India
2003

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I'm looking for method copper plating with high thickness (3 mm in diameter). now I'm doing electroplating rotary in bath. this method is expensive and take a long time. can I do this as stable?
thanks

Negin Mohmedy
technical manager - Ahwaz, Iran
April 24, 2011