Sliding device
AssigneeTaiho Kogyo Co., Ltd.
InventorsHiroshi Kanemitsu, Masaru Yoshikawa, Masaharu Hatta
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Abstract
A sliding device 1 is constituted of a swash plate 3 including a first sliding surface 3A and a semispherical shoe 4 sliding with the swash plate 3. The swash plate 3 is constituted of a base material 3B of high strength brass containing Mn and Si, and very small granular Mn—Si compounds 6 are exposed on an inside of the base material 3B and on the first sliding surface 3A (surface of the base material 3B). The above described swash plate 3 increases in exposure amount of the Mn—Si compounds 6 exposed on the first sliding surface 3A by applying etching to the base material 3B after cutting the base material 3B. The sliding device 1 is favorable in seizure resistance and has a low manufacturing cost as compared with conventional sliding devices.
Claims4
A sliding device comprising a swash plate having a first sliding surface formed on at least one end surface and a shoe having a second sliding surface in sliding engagement with the first sliding surface, characterized in that
- said swash plate comprises a base material made of a high strength brass containing Mn and Si, with Mn—Si compounds being exposed as projections and space portions which are continuous with each other formed around the projections on the first sliding surface by subjecting the first sliding surface to an etching treatment to increase the exposed area of the projections on the first sliding surface and
- said shoe is made of an iron material and a plurality of staggered circles are formed on the second sliding surface by quenching, where each circle forms a projected portion not exceeding 10 μm in height and the inside and outside portions of the circular projections are formed as recessed portions.
Dependencies are inferred from the claim text.