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-----Electro phosphating on steel wire
Q. Hi,
I am trying to do electro phosphate coating (Zinc Phosphate coating) on high carbon steel wires. It will be a continuous in line process and not a batch process. The surface area of steel to be coated will be 500 to 600 Sq.cm. I need some inputs on the following points.
1. What type of anodes should I use and what should be the surface area ? (anode to cathode ratio)
2. What should be the current density to achieve 6 to 8 gm/sq.mtr coating ?
Please clarify.
- Chennai, Tamil Nadu
March 30, 2012
A. Hi, Mualidharan.
Sorry, but I'm unfamiliar with electro-phosphating offhand, so I can't help. Hopefully another reader can.
Regards,
Ted Mooney, P.E.
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finishing.com - Pine Beach, New Jersey
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April 4, 2012
April 6, 2012
A. Electrochemical phosphating has been used to modify steel surface.
US patent 6346186 [ed. note: "Method for electrochemical phosphating of metal surfaces", www.freepatentsonline.com/6346186.html] describes about electrochemical phosphating of stainless steel.
Any metal finishing consultant will help you to establish the process for you.
T.S.N. Sankara Narayanan
- Chennai, Tamilnadu, India
(ed.note: The good doctor offers a fascinating blog, "Advancement in Science" )
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