Coating processes – Solid particles or fibers applied – Localized different areas produced
Patent
1996-10-30
1998-05-26
Pianalto, Bernard
Coating processes
Solid particles or fibers applied
Localized different areas produced
427190, 427191, 427192, 427203, 427205, 427223, 427225, 427249, 427422, 427427, B05D 500
Patent
active
057561508
ABSTRACT:
In a method of manufacturing a sliding member, a granular spraying material is sprayed on at least a part of a surface of a body portion made of a structural material in at least partially fusing condition and in the direction which is parallel to or diagonal to a sliding surface. Then, a sprayed layer is formed by depositing the spraying material in the direction which is perpendicular to the sliding surface. The sliding surface is a section of the deposited spraying material which is obtained by grinding or cutting the sprayed layer in depositional direction. A piston comprises a piston body having a broad groove which is broader than a ring groove, a sprayed layer comprising a lower sprayed layer which is formed by spraying the spraying material in the direction which is diagonal to an outer periphery of the broad groove and which contains higher ratio of spraying particles having low fusion temperature, and an upper sprayed layer which is formed by spraying the spraying material in the direction which is perpendicular to the outer periphery of the broad groove and which contains higher ratio of spraying particles having high fusion temperature, and a ring groove which is formed by grinding or cutting the upper sprayed layer in depositional direction. Therefore, excellent wear resistance and the like can be obtained.
REFERENCES:
patent: 4125926 (1978-11-01), Gale et al.
patent: 4523365 (1985-06-01), Richmond
patent: 5301599 (1994-04-01), Dearnley et al.
"Aluminum Pistons--A New Approach", C.G.A. Rosen, Railway Locomotives And Cars, Aug. 1955, pp. 64-69.
Fuwa Yoshio
Kodama Kouta
Miyamoto Taisuke
Mori Kazuhiko
Saitoh Kouji
Pianalto Bernard
Toyota Jidosha & Kabushiki Kaisha
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