Sliding member and surface treatment method for the same
AssigneesHonda Motor Co., Ltd., Tanaka Seimitsu Kogyo Co., Ltd.
InventorsKeiichi Maekawa, Atsushi Murakami, Takaaki Harasaki
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Abstract
Abrasion resistance is further enhanced in a sliding member used in an internal combustion engine. With respect to a valve lifter 6 used in an internal combustion engine 100, hard particles having higher hardness than the valve lifter 6 are dispersed onto the top face 61 of the valve lifter 6, and a nitriding treatment is conducted on the top face 61 dispersed with the hard particles.
Claims8
A sliding member for use in an internal combustion engine containing a sliding member that slides with another member, the sliding member comprising a main body and a base material that has been polished by hard particles having a higher hardness than the sliding member while the hard particles are directly dispersed on a surface of the base material having recess portions and that has been further coated with a nitride layer on the surface of the base material on which the hard particles have been directly dispersed.
A surface treatment method for a sliding member having a sliding face that is used in an internal combustion engine and slides with another member in the internal combustion engine, the method comprising the steps of:
- polishing the sliding face of the sliding member with hard particles having higher hardness than the sliding member while dispersing and leaving the hard particles under the polishing on the sliding face of the sliding member;
- and
- conducting a nitriding treatment on the sliding face of the sliding member on which the hard particles are dispersed and left.
Dependencies are inferred from the claim text.