Stock material or miscellaneous articles – All metal or with adjacent metals
Patent
1985-02-27
1987-05-19
Smith, John D.
Stock material or miscellaneous articles
All metal or with adjacent metals
427438, 4274431, 428612, 428627, 428652, 428680, C23C 1836
Patent
active
046667865
ABSTRACT:
A composite nickel plated sliding surface is obtained by the formation of a composite nickel plating film on a sliding surface of an automobile part such as an engine cylinder or piston by electroless nickel plating. The plating film contains at least one member of wear resistant particles having an average particle size of 0.1 to 1.0.mu. selected from SiC, TiC, WC, BC.sub.4, TiN, Al.sub.2 O.sub.3 or the like, and also at least one member of lubricating particles having an average particle size of 1 to 10.mu. selected from BN, MoS.sub.2, and Teflon. The nickel plating bath is adjusted to have a phosphorus concentration of 0.5 to 12%. When the matrix of the nickel plating film has a phosphorus concentration of 0.5 to 5%, the film hardness is improved.
REFERENCES:
patent: 3617363 (1971-11-01), Metzger
Hubbell, "Chemically Deposited Composites-A New Generation of Electroless Coatings" Plating & Surface Finishing, Dec. 1978, pp. 58-62.
Feldstein et al, "The State of the Art in Electroless Composite Plating" The First AES Electroless Plating Symposium, Mar. 23-24, 1982 St. Louis, MO, pp. 1-17.
Kano Keiichi
Kato Shinji
Ozawa Hitoshi
Takagi Yoshio
Yano Hideo
Aisin Seiki Kabushiki Kaisha
Smith John D.
Toyota Jidosha & Kabushiki Kaisha
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