Nippon Steel Corporation

Toyota Jidosha Kabushiki Kaisha

Nippon Kinzoku Co., Ltd.

Takuo Kono

Shinichi Matsumoto

Mikio Yamanaka

Toshihiro Takada

Yasushi Ishikawa

Akihiko Kasahara

Yutaka Sadano

Hikaru Aoyagi

Takashi Tanaka

Masao Yashiro

Shinji Shibata

Yasuo Obana

Masataka Yoshii

Yoshio Nishizawa

Tatsuro Kuwabara

Mitsugu Anabuki

Tadanobu Komai

Tatuo Sugiura

Masaaki Ohashi

A metallic carrier composed of an end face portion formed in at least one of the axial end portions of a honeycomb body and an outer circumferential reinforcing layer in which foils in a range from the outermost layer to a quarter of the total number of layers are joined together in the axial intermediate portion. Thus, the metallic carrier is flexible in expansion and shrinkage. Further, the honeycomb body and a jacket are joined to each other mainly at the outer circumference of the outer circumferential reinforcing layer of the honeycomb body, to reduce thermal stress developed between the honeycomb body and jacket while maintaining the strength against a high temperature, to thereby prevent the metallic carrier from being ruptured.

Heat and fatigue resistant metallic carrier for automobile exhaust

Refining of molten pig iron and steel in a converter by oxygen blowing continuously at least four charges in a converter to a carbon content in a range from 0.09 to 0.15% and further subjecting the molten steel to a secondary refining by addition or removal of carbon.

Process for refining molten pig iron and steel

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Tokyo, Japan

Takuo Kono