Nippon Light Metal Company, Ltd.

Toyota Jidosha Kabushiki Kaisha

Takeshi Fujita

Kaoru Sugita

Noriyuki Ueno

Takehito Kobayashi

Eikichi Sagisaka

Mikio Kubota

A gas pressure controlled casting mold is disclosed having a hot-top introducing a molten metal of aluminum or aluminum alloy, and a mold body which passes the molten metal of aluminum or aluminum alloy introduced from the hot-top through a molten metal passage portion for cooling and solidification and semi-continuously or continuously casting a billet of aluminum or aluminum alloy. A wall surface of the molten metal passage portion of the mold body is provided with a plurality of lubricating oil blow-out holes for blowing out a lubricating oil. A lubricating oil supply passage is communicatively connected to each lubricating oil blow-out hole and is independently formed at least in a range of a heat affected portion in the mold body. This allows the mold body to be reliably cooled regardless of the difference in the temperature and casting speed conditions and thus can achieve favorable continuous casting.

Gas pressure controlled casting mold

An aluminum alloy billet obtained by continuously casting molten aluminum alloy in the shape of rod is cut into a predetermined length by means of a cutting device. The aluminum alloy billet thus cut is loaded into a product carrier container with an identification mark that has been made. The casting condition and inspection results of the aluminum alloy billet are stored in the storage unit of a production control device in association with the identification mark so as to stabilize the quality and production of the aluminum alloy billet used for machining materials.

Production system and production method of aluminum alloy billet, and aluminum alloy billet

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Fuji, Japan

Takeshi Fujita