Toyo Drilube Co., Ltd.

Jfe Steel Corporation

Nidec Sankyo Corporation

Koichi Shoda

Masato Gomyo

Yasuhide Ishiguro

Akira Okubo

Takamasa Kawai

Shingo Suginobu

Seigo Goto

Seiji Ozaki

Hideo Sato

Ryota Kobayashi

Takashi Koga

Ryota Kubo

Kota Toyosawa

Sachiko Fujimoto

Nobutaka Nagao

Akihito Kobayashi

Junya Mizukami

Masayoshi Saichi

Noboru Ashibe

An agent for forming a solid lubricating coating film on a tightening surface of a thread portion, in which a solid lubricant is dispersed in a binder resin as a matrix component, a main component of the solid lubricant is melamine cyanurate, and an average particle diameter of the melamine cyanurate is 0.1 μm or more and 10.0 μm or less, the binder resin contains an alkyd resin and nitrocellulose, and the alkyd resin and nitrocellulose are contained in an amount of 85 wt % or more of the total binder resin component weight, and a total weight of the solid lubricant is 10 parts by weight or more and 100 parts by weight or less based on 100 parts by weight of a total weight of the binder resin.

Agent, oil country tubular goods, and threaded joint for oil country tubular goods

A solid lubricating coating film capable of imparting favorable lubricity and corrosion resistance to a connection for oil country tubular goods. Two or more solid lubricants are dispersed in a binder resin. Graphite is contained in an amount of 50% or more and 90% or less of a total weight of the solid lubricants, and the graphite has a scaly shape and an average particle diameter of 10.0 μm or less. A solid lubricant made of one or more materials selected from BN, mica, talc, MCA, MoS, PTFE, PFA, and FEP is further contained as other solid lubricants of the two or more types of solid lubricants. The binder resin contains a PEEK resin having an average particle diameter of 20 μm or less as a main component, and the PEEK resin is contained in an amount of 70% or more of a total weight of the binder resin.

Agent for forming solid lubricating coating film, oil country tubular goods, threaded joint for oil country tubular goods, and method for manufacturing oil country tubular goods

A bearing apparatus includes a rotating member, a fixed member opposing the rotating member and an ink-like resin material. Opposing surfaces of the rotating member and the fixed member form a bearing part and the ink-like resin material is applied to at least one of the opposing surfaces by transfer printing.

Method for manufacturing a fluid dynamic bearing by printing a resin sliding film

A dynamic pressure bearing device includes a dynamic pressure face of a shaft member, a dynamic pressure face of a bearing member, lubricating fluid filled in a bearing space of a dynamic pressure bearing portion including a gap between the dynamic pressure faces, a dynamic pressure generation means for pressing so that the lubricating fluid generates a dynamic pressure that supports the shaft member in a non-contact manner with the bearing member and in a rotatable manner relatively to the bearing member, and a sliding surface layer having abrasion resistance provided to at least one of the dynamic pressure face of the shaft member and the dynamic pressure face of the bearing member. The sliding surface layer is made up of a resin lubricating film in which many particles of solid lubricating material is dispersed, and a maximum diameter of the particles constituting the solid lubricating material included in the sliding surface layer is smaller than a minimum gap size of the bearing space of the dynamic pressure bearing portion.

Dynamic pressure bearing device

Growing community of inventors

Kanagawa, Japan

Koichi Shoda