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topic 8240

Coating for Steel 'V' Rails


We use Bishop-Wisecarver 'V' rails on one of our machines. These 1040 steel rails are cold formed then edge hardened. Rust is a big problem! I've tried chrome plating, passivated stainless steel, solid lubricants, and am currently trying electroless nickel with Teflon additive. Because the load of the rolling V wheels scrapes (differential sliding), as well as rolls, the coatings come off over time. Our machines are used in the semiconductor industry. What else could I try. I'm desperate for a solution!

Steve Kelly
- New Berlin, Wisconsin, USA



Put electroless nickel silicon carbide composite coating on the rails and they will never wear out.

Dan Weaver
- Toccoa, Georgia

March 15, 2011

How about a Diamond Like Coating? Perhaps a tungsten carbide sputter deposited finish? If the form factor is large specialty deposition houses might be needed.

John Dick
solar modules - Durham, North Carolina USA
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