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Is vacuum necessary for baking of electroless nickel?  

September 17, 2008

We plate Electroless nickel (10%P) on carbon steel substrates. To improve adhesion and hydrogen release bake them at 200 deg C for 4 hours. Our customer demanded heat treatment under vacuum. Is there any advantage in going for vacuum? There is no tarnishing of coating even in normal furnace. Is it really necessary to go for Vacuum? Our customer says this coating (30 microns) is for corrosion resistance.For what type of applications baking under vacuum is needed?

Ram Prasad
job plater - Bangalore, Karnataka, India
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September 28, 2008

Conventional furnace may leave surface contamination which in turn may lead to premature corrosion. Also remember that "The one who pays, rules". G. Marrufo-Mexico

Guillermo Marrufo
Monterrey, NL, Mexico

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