Kabushiki Kaisha Toyota Chuo Kenkyusho

Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo

Hiroshi Hohjo

Nobuo Kamiya

Hajime Ikuno

Masaaki Tani

Katsunori Yamada

Mitsuru Asai

Yoshihiko Sugimoto

Naoki Nishikawa

Tsuyoshi Yamamoto

Masakazu Murase

Fumio Shimizu

Shoichi Onda

Hiroshi Kawahara

Hiroshi Osada

Yoshifumi Wakisaka

Shin Tajima

Hiroaki Makino

Toshio Horie

Hiroaki Iwahori

Masanori Usui

Yuka Yamada

Reona Takagishi

Atsushi Kawamoto

Isamu Ueda

Tadayoshi Matsumori

Tsuguo Kondoh

Naohisa Nishino

Shinichi Towata

Hidehiko Kimura

Shoji Hotta

Akira Yamada

A forming method of a thermal insulation film includes a first step of forming an anode oxidation coating film on an aluminum-based wall surface, the anode oxidation coating film including micro-pores each having a diameter of micrometer-scale and nano-pores each having a diameter of nanometer-scale; and a second step of coating a surface of the anode oxidation coating film with a sealant containing filler to seal at least part of the micro-pores and the nano-pores by the sealant so as to form the thermal insulation film.

Forming method of thermal insulation film and internal combustion engine

A thermal conductive stress relaxation structure is interposed between a high-temperature substance and a low-temperature substance to conduct heat in a heat-transfer direction from the high-temperature substance to the low-temperature substance. The structure includes an assembly configured such that a thermal conductive material gathers in a non-bonded state having stress relaxation effect. Such an assembly is a rolled-up body configured such that a carbon-based sheet material and a metal-based sheet material are alternately rolled up, for example. This structure has one or more interfaces at which adjacent parts can slide, thereby dividing a deformable region to relax the thermal stress. It has a low rigidity and can thus deform to release the thermal stress. The structure can suppress the thermal stresses and the shape changes that would be generated in the high-temperature substance and the low-temperature substance, and each physical body located there between.

Thermal conductive stress relaxation structure

A forming method of a thermal insulation film, including: a first step of forming an anode oxidation coating film on an aluminum-based wall surface, the anode oxidation coating film including micro-pores each having a diameter of micrometer-scale and nano-pores each having a diameter of nanometer-scale; a second step of abrading a surface of the anode oxidation coating film with abrasive powders and bringing the abrasive powders into the micro-pores located at the formed abraded surface; and a third step of forming a protection film on the abraded surface to produce a thermal insulation film including the anode oxidation coating film and the protection film.

Forming method of thermal insulation film

A multiple testing system has plural testing units which are disposed independently, and a single information processing device. The testing unit has a frame, a loading mechanism supported at the frame and applying a desired load quantity on a test body, and a detector detecting a load quantity applied on the test body. By multitasking control and with respect to the testing units, the information processing device carries out: feedback control processing for, on the basis of a detected load quantity, controlling the loading mechanism such that the detected load quantity becomes a predetermined target value; control processing at an abnormal situation when at least one of an abnormality of the test body, an abnormality of the testing unit, or an abnormality of a power source of the loading mechanism, is detected; and interface processing with an operator.

Multiple testing system and testing method

Aluminum alloys and castings are provided that have excellent practical fatigue resistances. The alloy includes, based upon 100 mass %, 4-12 mass % of Si, less than 0.2 mass % of Cu, 0.1-0.5 mass % of Mg, 0.2-3.0 mass % of Ni, 0.1-0.7 mass % of Fe, 0.15-0.3 mass % of Ti, and the balance of aluminum (Al) and impurities. The alloy has a metallographic structure, which includes a matrix phase primarily of &#x3b1;-Al and a skeleton phase crystallizing around the matrix phase in a network shape. The matrix phase is strengthened by precipitates containing Mg. Because of the strengthened matrix phase, and the skeleton phase that surrounds it, the castings have high strength, high fatigue strength, and high thermo-mechanical fatigue resistance.

Aluminum alloys for casting and aluminum alloy castings

A piston made of aluminum cast alloy having a main body section in an approximately cylindrical shape, atop face section provided and arranged so as to occlude one end of the main body section, and a pin boss section in which a pin hole is provided so as to penetrate through the main body section in a radial direction. The piston comprises an aluminum cast alloy containing Mg (Magnesium): equal to or less than 0.2 mass %, Ti (Titanium) 0.05-0.3 mass %, Si (Silicon): 10-21 mass %, Cu (Copper): 2-3.5 mass %, Fe (Iron): 0.1-0.7 mass %, Ni (Nickel): 1-3 mass %, P (Phosphorus): 0.001-0.02 mass %, Al (Aluminum): the remaining portions, and impurities.

Piston made of aluminum cast alloy and method of manufacturing the same

A sensor material for measuring physical parameters capable of configuring a sensor capable of directly measuring a high value of physical parameters such as high stress or high pressure without employing a pressure resistance container. The sensor material for measuring static and dynamic physical parameters includes a matrix made of an electrically insulating ceramic material, and piezoresistance materials which are dispersed in the matrix so as to be electrically continuous to each other.

Material for measuring static and dynamic physical parameters

A metal matrix composite casting comprises a metal matrix composite and a processed member inserted in the metal matrix composite by enveloped casting. By the processed member which is easier to process than the metal matrix composite, a processed portion of a predetermined shape can be formed in the metal matrix composite. That is, by a simple processing such that the processed member is removed from the metal matrix composite or the processed portion is formed in the processed member itself, the processed portion having a desired shape can be easily formed in the metal matrix composite.

Metal matrix composite casting and manufacturing method thereof

This invention concerns a composite material which is characterized by comprising a large number of composite material cells, as structural units of the composite material, each comprising a first phase composed of a base material and a second phase composed of a dispersion material surrounding the first phase discontinuously; and comprising a matrix comprising the base material and the dispersion material dispersed in the matrix, the dispersion material being dispersed discontinuously in the form of a three-dimensional network in the composite material; wherein the dispersion materials of the composite material cells are combined to form a composite material skeletal part, thereby exhibiting properties of the dispersion material without reducing the strength of the matrix owing to the skeletal part, and improving strength characteristics thereof owing to the skeletal part serving as a resistance to external stress. A preferred embodiment of the invention provides a composite material characterized in that it comprises a base material, a reinforcing layer comprising a material which resembles the base material and is dispersed continuously in the form of a three-dimensional network in the base material, and dispersion material which is dispersed discontinuously within the material of the reinforcing layer, so that the dispersion material is dispersed discontinuously in the form of a three-dimensional network in the base material, and provides a method for the manufacture of this composite material.

composite material and method for the manufacture

Growing community of inventors

Nagoya, Japan

Hiroshi Hohjo