Title:
SLIDING MEMBER
Document Type and Number:
Japanese Patent JPS58146763
Kind Code:
A
Abstract:
PURPOSE:To enhance the wear-resistance and siezing-resistance of a pair of sliding members such as, for example, a cylinder and a piston, which are slidable with respect to each other, by making the sliding part of one of the members of aluminum alloy and by forming a plated film made of ferro-phosphor alloy or the like on the sliding part of the other one of members. CONSTITUTION:In case of such an arrangement that one of a pair of sliding members is a cylinder bore made of aluminum alloy and the other one of the member is a piston 1 similarly made of aluminum alloy, a plated film made of ferro-phosphor alloy (Fe-P) or nickel-phosphor alloy (Ni-P) is formed on the skirt part 2 of the piston 1. If the material of the piston is a metal alloy such as, for example, AC8P.T6 standard aluminum alloy, this plating is made by the following steps, in the mentioned order; etching step, pickling step, zinc substitution plating step, nickel plating step and Fe-P plating step and the like. With this process, a zinc substitution plated layer 3, a nickel plated layer 4, Fe-P plated layer 5 and a tin plated layer 6 are formed on the skirt part 2 in the mentioned order in the direction from the inside surface to the outside surface thereof.
Inventors:
KATOU SHINJI
Application Number:
JP2705682A
Publication Date:
September 01, 1983
Filing Date:
February 22, 1982
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD
International Classes:
C23C18/32; C25D3/20; C25D5/44; F16J1/02; F16J9/26; F16J10/04; (IPC1-7): C23C3/02; F16J9/26; F16J10/04
Domestic Patent References:
| JPS4955532A | 1974-05-29 |
Attorney, Agent or Firm:
Kaname Yumi