Honda Giken Kogyo Kabushiki Kaisha

Fumio Hirai

Mitsuo Kuwabara

Teruaki Yoshida

Kiyoshi Ikegami

Tamotsu Harada

Koji Takahashi

Takeshi Komiyama

Masamichi Hayashi

Masayoshi Kai

Hideshi Sato

Shiro Naito

Takeshi Sasaki

Setsumi Hatanaka

Haruki Kodama

Noboru Miyao

A centrifugal casting apparatus has a workpiece withdrawal mechanism, a cleaning mechanism, and a facing material applying mechanism which are disposed parallel to each other on an axial side of a centrifugal casting mold, a unit drive mechanism for moving the workpiece withdrawal mechanism, the cleaning mechanism, and the facing material applying mechanism in unison with each other in the direction indicated by the arrow B across the axial direction indicated by the arrow A, and a pouring mechanism disposed in an opposite axial side of the centrifugal casting mold.

Centrifugal casting equipment

A method of producing a molded ceramic article comprises the first step mixing powdery raw materials and a liquid additive, thereby obtaining a mixed raw material, the second step press-molding the mixed raw material obtained in the first step in a hydrostatically applied condition of pressure, thereby removing an excess of the liquid additive to obtain a preform, and the third step calcining the preform obtained in the second step to obtain a molded ceramic article. The molded ceramic article comprises, as a principal component, copper and, as essential components, Cr and Ni within composition ranges of 0.1.ltoreq.Cr&lt;2 wt. % and 0.1.ltoreq.Ni&lt;10 wt. % and further at least one additive component selected from the group consisting of the following composition ratios: the following composition ratios: 0&lt;Fe&lt;5 wt. %, 0.ltoreq.Co&lt;5 wt. %, 0.ltoreq.Al&lt;10 wt. %, 0.ltoreq.Ti&lt;20 wt. %, 0.ltoreq.Mo&lt;3 wt. %, 0.ltoreq.Si&lt;3 wt. %, 0.ltoreq.V&lt;3 wt. %, 0.ltoreq.Mg&lt;1 wt. %, and 0.ltoreq.C&lt;5 wt. %, and has at least one composition range selected from the group consisting of the following composition ratios: 0&lt;O.sub.2 &lt;10 wt. %, 0&lt;N.sub.2 &lt;5 wt. % and 0&lt;B&lt;10 wt. %.

Molded ceramic articles and production method thereof

A method of producing a molded ceramic article comprises the first step mixing powdery raw materials and a liquid additive, thereby obtaining a mixed raw material, the second step press-molding the mixed raw material obtained in the first step in a hydrostatically applied condition of pressure, thereby removing an excess of the liquid additive to obtain a preform, and the third step calcining the preform obtained in the second step to obtain a molded ceramic article. The molded ceramic article comprises, as a principal component, copper and, as essential components, Cr and Ni within composition ranges of 0.1.ltoreq.Cr&lt;2 wt. % and 0.1.ltoreq.Ni&lt;10 wt. % and further at least one additive component selected from the group consisting of the following composition ratios: the following composition ratios: 0&lt;Fe&lt;5 wt. %, 0.ltoreq.Co&lt;5 wt. %, 0.ltoreq.Al&lt;10 wt. % 0.ltoreq.Ti&lt;20 wt. %, 0.ltoreq.Mo&lt;3 wt. %, 0.ltoreq.Si&lt;3 wt. % 0.ltoreq.V&lt;3 wt. % 0.ltoreq.Mg&lt;1 wt. % and 0.ltoreq.C&lt;5 wt. % and has at least one composition range selected from the group consisting of the following composition ratios: 0&lt;O.sub.2 &lt;10 wt. %, 0&lt;N.sub.2 &lt;5 wt. % and 0&lt;B&lt;10 wt. %.

Molded ceramic articles

A method of producing a molded ceramic article comprises the first step mixing powdery raw materials and a liquid additive, thereby obtaining a mixed raw material, the second step press-molding the mixed raw material obtained in the first step in a hydrostatically applied condition of pressure, thereby removing an excess of the liquid additive to obtain a preform, and the third step calcining the preform obtained in the second step to obtain a molded ceramic article. The molded ceramic article comprises, as a principal component, copper and, as essential components, Cr and Ni within composition ranges of 0.1.ltoreq. Cr&lt; 2 wt. % and 0.1.ltoreq. Ni&lt; 10 wt. % and further at least one additive component selected from the group consisting of the following composition ratios: the following composition ratios: O&lt;Fe&lt; 5 wt. %, O.ltoreq.Co&lt; 5 wt. %, O.ltoreq.Al&lt; 10 wt. %, O.ltoreq.Ti&lt; 20 wt. %, O.ltoreq.Mo&lt; 3 wt. %, O.ltoreq.Si&lt; 3 wt. %, O.ltoreq.V&lt; 3 wt. %, O.ltoreq.Mg&lt; 1 wt. % and O.ltoreq.C &lt; 5 wt % and has at least one composition range selected from the group consisting of the following composition ratios: O&lt;O.sub.2 &lt;10 wt. %, O&lt;N.sub.2 &lt;5 wt. % and O&lt;B&lt; 10 wt. %.

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Sayama, Japan

Fumio Hirai