Title:
SLIDING SURFACE STRUCTURE
Document Type and Number:
Japanese Patent JP2724793
Kind Code:
B2
Abstract:
PURPOSE: To depress the wear of a mating member having superior wear resis tance and low hardness by forming a sliding surface structure of a metal crystal aggregate having body-centered cubic structure and by staying (3hho in Miller's indices) orienting metal crystal with a predetermined ratio in the aggregate.
CONSTITUTION: A cylinder block 1 for internal combustion engine has an Al alloy-made cylinder block body and a cast iron-made cylinder sleeve 3. A layer sliding surface structure 4 is formed by plating treatment on the inner peripheral surface of the cylinder sleeve 3. The sliding surface structure 4 consists of a metal crystal aggregate having body-centered cubic structure (bcc structure,). The aggregate contains a (3hho in Miller's indices) orienting metal crystal in which its (3hho in Miller's indices) surface is faced a sliding surface 4a to a cylinder bore inner wall. The abundance rate S of the orienting metal crystal is set to S≥40%. Thus, good wear resistance is available even under nonlubricating state and wear to a mating member is depressed.
Inventors:
FUJISAWA YOSHIKAZU
GUNJI TAKAHIRO
TABATA KATSUMUNE
OKAMOTO KAZUHISA
GUNJI TAKAHIRO
TABATA KATSUMUNE
OKAMOTO KAZUHISA
Application Number:
JP35133192A
Publication Date:
March 09, 1998
Filing Date:
December 07, 1992
Export Citation:
Assignee:
HONDA GIKEN KOGYO KK
International Classes:
C25D3/20; F02F1/00; F02F1/10; F16C33/12; F16J10/04; (IPC1-7): F16J10/04; F02F1/00
Attorney, Agent or Firm:
Ken Ochiai (1 person outside)
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