Nissan Motor Company Limited

Other

Nippon Oil Corporation

Fukuda Metal Foil & Powder Co., Ltd.

Hitachi Powdered Metals Co., Ltd.

Renault S.a.s.

Kabushiki Kaisha Riken

Aichi Machine Industry Co., Ltd.

Sumitomo Electric Industries, Limited

Martin, Jean Michel

Yutaka Mabuchi

Makoto Kano

Takahiro Hamada

Yoshiteru Yasuda

Tsuyoshi Higuchi

Yoshinori Izawa

Junichi Arai

Takashi Murata

Shozaburo Konishi

Yuka Suzuki

Shigeki Takeshima

Takemichi Yamashita

Jean Michel Martin

Akira Nakagawa

Takuma Suzuki

Shinichi Nishimura

Akira Fujiki

Katsunori Otobe

Kenji Tsushima

Takumaru Sagawa

Yukihiro Maekawa

Yusuke Okamoto

Takashi Suzuki

Kimio Nishimura

Kei Ishii

Katsuaki Ogawa

Tadayuki Tsutsui

Takafumi Ueno

Masahiko Watanabe

Masashi Yamaguchi

Hayato Hirayama

Takuya Hirata

Jyun-ichi Yamada

Hidenori Miyake

Shojiro Miyake

Hideaki Kamiyama

Kenji Kikuchi

Kenshi Ushijima

Takahiro Miura

Takao Mori

Tomoyuki Koike

Yoshiharu Utsumi

Masato Yamaguchi

Takahiro Nakahigashi

Hisanori Ohara

Hiroshi Kumagai

Masahiko Shioda

Masaki Moronuki

Terasu Yoshinari

Katsuhiro Tsuji

Makoto Hayama

Takao Ishikawa

Kazuhiko Oda

Tomohito Ota

Shin Nomura

Makoto Yoshida

Makoto Iwakiri

Miki Irie

Akinobu Itou

Yoshimi Sugaya

Takeshi Kariya

Benjamin Duffau

Kiyotaka Nakamura

Hiroyuki Izumi

Seiji Kamada

Shinji Asano

Moriyuki Nogami

Saburo Abe

Tadashi Goto

Takashi Matsui

Saihei Kano

Christian Grente

Midori Kondou

Elodie Bonay

Yuuji Azuma

Masanori Komaba

Carolina Specht

Katsuyuki Serizawa

Miki Murakami

Seiichi Nakano

Jean Marie Mahlaire

Mototaka Ishihara

Ken Tsutsuji

Katsuhiko Ueda

Masakazu Wada

Hiroshi Tosaka

Misao Mogami

Masanao Harada

Alain Pasgrimaud

Carmelo Gugliotta

Hiroyasu Nagami

Jean-Michel Martin

Shozaburo c/o Nippon Oil Corporation Konishi

Shigeki c/o Nippon Oil Corporation Takeshima

Takafumi Intellectual Property Department Ueno

Takahiro c/o Intellectual Property Dept Hamada

Hisanori c/o Nippon Itf Co Ltd Ohara

Kazuhiko c/o Itami Works Oda

A manufacturing method of a heat shield component includes a mixing step of mixing sol including a ceramic precursor with heat-expandable microspheres having an outer shell formed of thermoplastic resin and encapsulating a foaming agent so as to obtain a mixed solution, a coating step of applying the mixed solution to a substrate to obtain a coated product, and a heating step of heating the coated product to form a base body including a ceramic from the ceramic precursor, and leading the heat-expandable microspheres to foam so as to form a ceramic porous layer including closed pores in the base body. The ceramic porous layer has a porosity in a range of 40% to 70%.

Heat shield component and manufacturing method thereof

A heat shielding member includes a base, and a heat shielding membrane on the base. The heat shielding membrane includes a porous layer including at least a closed pore. The porous layer includes resin and carbon-based filler. The heat shielding member has both of low thermal conductivity and low heat capacity and improves the fuel economy performance.

Heat-shielding member

A laminate includes a base substrate, and a coating layer formed on the base substrate. The coating layer includes a copper alloy portions derived from precipitation-hardening copper alloy particles and hard particle portions which are harder than the copper alloy portions, the hard particle portions are derived from hard particles, and the parts bond with each other via an interface. Each of the hard particle portions has a non-spherical shape. A sliding member includes the laminate in at least one sliding portion. A method for manufacturing a laminate includes a step of spraying a mixture in a non-molten state including precipitation-hardening copper alloy particles and hard particles having a non-spherical shape and being harder than the copper alloy particles onto a base substrate, to form a coating layer on the base substrate.

Laminate, sliding member, and method for manufacturing laminate

A sliding member of the present invention includes a coating on a base material. The coating contains hard metal particles and corrosion-resistant metal particles that have hardness lower than that of the hard metal particles. The hard metal particles contain particles that have at least Vickers hardness of 600 Hv or higher. The corrosion-resistant metal particles are made of at least one kind of metal selected from the group consisting of copper (Cu), cobalt (Co), chromium (Cr), and nickel (Ni), or are made of an alloy containing said metal. The coating has a cross section in which the hard metal particles are dispersed in an island manner in a particle aggregate of the corrosion-resistant metal particles and in which an area ratio of the corrosion-resistant metal particles is 30% or larger. Thus, corrosion of the hard metal particles in the coating is prevented, whereby the sliding member maintains wear resistance for a long time.

Sliding member

A heat shield component includes a substrate, and a heat shield film arranged on the substrate. The heat shield film includes a first layer arranged on the substrate, including pores, and having a thermal conductivity of 0.3 W/(m&#xb7;K) or less and a volumetric specific heat of 1200 kJ/(m&#xb7;K) or less, and a second layer arranged on the first layer to provide closed pores between the first layer and the second layer. The heat shield film has a surface roughness on a top surface which is 1.5 &#x3bc;m Ra or less. The heat shield component can achieve high heat-insulating properties and an improved effect of reducing the emission amount of hydrocarbon in an internal combustion engine, for example.

Heat shield component

A bearing memberis provided with a coating layeron an inner circumferential surface of a shaft holeA into which a shaft bodyis to be fitted. The coating layeris composed of a metal base materialA and a heat conductive materialB that is dispersed in the base materialA and that has a thermal conductivity relatively higher than that of the base materialA. The heat conductive materialB has lengths Lb and Lc in directions B and C along a surface of the coating layer, longer than a length La in a thickness direction A of the coating layer, whereby thermal conductive characteristics in the directions B and C along the inner circumferential surface of the shaft holeA are enhanced. Thus, heat dissipation is improved, whereby temperature rise due to sliding contact with the shaft bodyis suppressed, and seizure resistance is improved.

Bearing member

A bearing member (B) having a coating layer () on an internal circumferential surface of a shaft hole (H) configured to mount a shaft body (P), the coating layer () having a metal layer () whose surface is formed unevenly, and a resin layer () formed on the metal layer (), the metal layer () having a part thereof exposed (A) on a surface of the resin layer (), to inhibit the increase in temperature caused by sliding contact with the shaft body (P), and accomplishing improvement in seizure resistance.

A sliding mechanism excellent in seizure resistance is provided. A sliding mechanism including a lubricating oil interposed at a sliding surface between a DLC coating sliding member (A) and a sliding member (B), wherein the DLC coating sliding member (A) has a DLC film covered on a base material, and metal films in an island configuration are covered on a surface of the DLC film.

Low friction sliding mechanism

A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes a steel portion derived from austenitic stainless steel particles and a copper portion derived from copper particles or copper alloy particles. The steel portion and the copper portion are bonded to each other via an interface between the steel portion and the copper portion.

Sliding member, and sliding member of internal combustion engine

In a piston of an internal combustion engine in which a recessed portion that holds an intake air swirling flow is formed on a crown surface of the piston, the crown surface includes a heat insulating film formation portion having a heat insulating film whose thermal conductivity is lower than a base material of the piston, the heat insulating film whose thermal capacity per volume is smaller than the base material of the piston, and a heat insulating film non-formation portion provided at a position on the more outside of a cylinder bore side of the internal combustion engine than the heat insulating film formation portion, the heat insulating film non-formation portion not having the heat insulating film.

Piston

A method for producing a laminated member includes a step of spraying a mixture in a non-molten state including a plurality of precipitation hardening copper alloy particles and a plurality of hard particles that have non-spherical shapes having a median aspect ratio of equal to or more than 1.2 and are harder than the copper alloy particles onto a base substrate to form a coating layer on the base substrate.

Method for producing laminated member

A sliding mechanismincludes a first sliding memberand a partner second sliding memberconfigured to slide relative to the first sliding member. The first sliding memberincludes a matrix phaseand a hard phasethat is harder than the matrix phase, in which the hard phaseis embedded in the matrix phasein a dispersed state. The second sliding memberincludes a baseand a surface-treatment layerthat is formed on the sliding surfaceof the baseand is harder than the matrix phase

Sliding mechanism

A gear pair includes a first gear and a second gear that are engaged and paired with each other, wherein the arithmetic average roughness Ra of the tooth surface of the first gear is less than 0.10, and the arithmetic average roughness Ra of the tooth surface of the second gear is equal to or greater than 0.15. An improvement of the transmission efficiency is achieved due to the improved composite roughness of the gear pair. Accordingly, both of the improvement of the transmission efficiency of the gears and an improvement of the pitting fatigue life are achieved at low cost.

Gear pair

A sliding member includes: a base; a chromium-based hard chromium plated layer formed on the surface of the base; a hard carbon layer that is mainly composed of carbon element and is formed on the hard chromium plated layer. The hydrogen concentration of the hard chromium plated layer is equal to or less than 150 mass ppm. A method for producing the sliding member involves heating the surface of the base on which the chromium-based hard chromium plated layer has been formed at a temperature of 250&#xb0; C. or more so that the hydrogen concentration of the hard chromium plated layer is equal to or less than 150 mass ppm, and thereafter forming the hard carbon layer mainly composed of carbon element on the hard chromium plated layer.

Sliding member and method for producing same

Growing community of inventors

Yokohama, Japan

Yutaka Mabuchi