Toyota Jidosha Kabushiki Kaisha

Toyota Jidosha Kogyo Kabushiki Kaisha

Kabushiki Kaisha Toyota Chuo Kenkyusho

Yoshitaka Takahashi

Tetsuya Suganuma

Kenji Ushitani

Kametaro Hashimoto

Masashi Shibata

Itaru Niimi

Koji Kazuoka

Shuichi Fujita

Tadashi Dohnomoto

Hiroshi Okajima

Katsuhiko Ueda

Hitoshi Nakamura

Mikio Kondo

Yoichi Serino

Yasuo Takeda

Takeshi Okujo

The present invention is an apparatus for filling a multi-powder including a powder box () including a plurality of powder chambers storing a plurality of powders whose constituent compositions differ in a divided manner, and a gas feed pipe () disposed on the bottom side of the powder chamber and having an introducing hole for introducing a gas, wherein it can fill a plurality of the powders into a cavity () at once through the bottom openings of the powder box by introducing a gas through the introducing hole to substantially equalize the respective flow resistances of a plurality of the powders. Thus, it is possible to fill the powders whose constituent compositions differ at once without disposing them in a mixed manner.

Composite powder filling method and composite powder filling device, and composite powder molding method and composite powder molding device

This composite material is composed essentially of a matrix metal which is copper or an alloy thereof, and a reinforcing fiber material which is a collection of alumina - silica type short fibers in which the included amount of alumina is about 40% by weight or more, with the total amount of non fibrous particles included in the collection of fibers being less than or equal to about 7% by weight, with the total amount of non fibrous particles with diameter greater than or equal to about 150 microns included in the collection of fibers being less than or equal to about 1% by weight, and with the volume proportion of the short fiber material being from about 0.5% to about 30%. Optionally and preferably, this volume proportion of short fiber material is from about 1.0% to about 25%, or from about 0.5% to about 10%, or even better from about 1.0% to about 5%. And the total amount of non fibrous particles can be less than or equal to about 4% by weight; and the total amount of non fibrous particles with diameter greater than or equal to about 150 microns can be less than or equal to about 0.6% by weight. The reinforcing fiber material can be fibers containing a substantial amount of silica, or alternatively can be a fiber material substantially made only of alumina; and may contain a substantial amount of, or consist substantially only of, alpha alumina. The matrix material may be pure copper, brass, or bronze.

Fiber reinforced material with matrix metal containing copper and

A method for manufacturing a firm and rigid cam-cam shaft assembly, which comprises the steps: (a) molding a component having through-hole therein from a material of an alloy to be sintered, said material allowing the first ratio of the contraction of the inner diameter of the component at joining portion when the component is singly sintered to the inner diameter thereof before sintering to be more than 2%; (b) presintering said component; (c) assembling said component onto a metal shaft such that said metal shaft may be inserted into said through-hole; and (d) sintering said component assembled onto the metal shaft, whereby the joining of the component to the metal shaft is carried out in such a manner that the second ratio of the difference between the outer diameter of the metal shaft and the inner diameter of the contracted component after sintering to the outer diameter of the metal shaft is more than 2%.

Method for manufacturing a cam-cam shaft assembly

An anti-wear sintered alloy comprising from 2.5 to 25.0% of Cr, from 0.10 to 3.0% of Mn, from 0.1 to 0.8% of P, from 1.0 to 5.0% of Cu, from 0.5 to 2.0% of Si, from 0 to 3% of Mo, 1.5 to 3.5% of C, one selected from the group consisting of from 0.5 to 3.0% of S and from 1.0 to 5.0% of Pb, and the balance being Fe with less than 2% of impurities, wherein S or Pb is distributed uniformly in the sintered alloy in form of sulfide or lead particle of less than 100 .mu.m and a manufacturing process thereof.

Anti-wear sintered alloy and manufacturing process thereof

Wear-resisting iron base sintered alloy obtained by sintering a metal powder composed of, by weight, 15-25% chromium, 0-3% molybdenum, 1-5% copper, 0.3-0.8% phosphorus and 2.0-4.0% carbon, with the balance iron and less than 2% impurities, to a density of more than 7.3 g/cm.sup.3.

Wear-resisting sintered alloy

Apparatus for manufacturing spherical hollow particles which provides a large number of individual linear water jets arranged in a ring and converging at a single point, so that a molten metal may be passed through this ring of water jets and converging point.

Apparatus for manufacturing spherical hollow particles

The present invention relates to an anti-wear ferrous sintered alloy composed of carbon, molybdenum, phosphorus, boron, and, if desired, copper, and the balance iron.

Anti-wear ferrous sintered alloy

A method for manufacturing spherical hollow particles by providing a large number of individual linear water jets arranged in a ring and converging at a single point, and passing a molten metal through this ring of water jets and converging point.

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Toyota, Japan

Yoshitaka Takahashi