Machine part resistant to rolling friction

Details Machine part resistant to rolling friction Machine part resistant to rolling friction

1995-02-13

1996-03-05

Niebling, John

Stock material or miscellaneous articles

All metal or with adjacent metals

Microscopic interfacial wave or roughness

205172, 205185, 205258, 428469, 4284722, 428652, 428660, 428935, B32B 1500, C25D 356

Patent

active

054966515

ABSTRACT:
A machine part comprises: a base part formed of a titanium alloy or an aluminum alloy and having a roughened surface of Ra 0.5 .mu.m or above and PPI.sub.50 or above; and a Ni--P electrodeposit layer formed over the surface of the base part by an electroplating process using a Ni--P plating bath containing a stress relaxing agent, and having a stress of 20 kgf/mm.sup.2 or below. The machine part has a small specific gravity, excellent seizure resistance, wear resistance and fatigue strength.

REFERENCES:
patent: 3981781 (1976-09-01), Mori et al.
patent: 4388379 (1983-06-01), Klingenmaier
Abner Brenner, Electrodeposition of Alloys, Principles and Practice, Academic Press, New York, 1963, vol. I, pp. XIX.
H. Silman et al, Protective and Decorative Coatings For Metals, Finishing Publications Ltd., Teddington, Middlesex, England, 1978, pp. 345-346.
F. A. Lowenheim, Electroplating, McGraw-Hill Book Co., New York, 1978, pp. 89-91.

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