Method of applying a corrosion-proof and wear-resistant coating

Details Method of applying a corrosion-proof and wear-resistant coating Method of applying a corrosion-proof and wear-resistant coating

1983-05-25

1985-12-10

Metz, Andrew H.

Chemistry: electrical and wave energy

Processes and products

204 321, 204 384, 2041445, C25D 540

Patent

active

045578087

ABSTRACT:
The invention is directed to a method of applying a corrosion-proof and wear-resistant coating to the piston rod of a hydraulic ram which is intended to be used in an underground mine working, or in similar workings. The method comprises the steps of applying a layer of nickel to the piston rod using a currentless nickel-plating process, and then applying a microcracked hard-chromium layer to the nickel layer. The nickel layer is of high density, tensile strength and ductility. Before the application of the microcracked hard-chromium layer, the previously-applied nickel layer is activated electrolytically in a sulphuric acid bath, in order to improve the adhesion of the hard-chromium layer to the nickel layer.

REFERENCES:
patent: 3644183 (1972-02-01), Odekerken
patent: 3654099 (1972-04-01), De Bruyne
patent: 4416738 (1983-11-01), Herrmann, Jr.
Metal Finishing Guidebook and Directory for 1978, Metals and Plastics Publications, Inc., Hackensack, N.J., pp. 168-169, 173.

Affiliated with

Also associated with

Rating

Method of applying a corrosion-proof and wear-resistant coating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of applying a corrosion-proof and wear-resistant coating , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of applying a corrosion-proof and wear-resistant coating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-57477