Kurosaki Refractories Co., Ltd.

Nippon Steel Corporation

Krosakiharima Corporation

Yoshihiko Uchida

Kotaro Kuroda

Shinichi Fukunaga

Katsumi Morikawa

Joki Yoshitomi

Keiichiro Akamine

Akihiko Kusano

Yoshiyuki Ochi

Yutaka Ohnishi

Yutaka Shibata

Provided is an aluminum oxycarbide composition production method capable of increasing a yield of AlOC while reducing a content rate of AlCand achieving high productivity, and an aluminum oxycarbide composition. The method comprises: preparing a blend substantially consisting of a carbon-raw material having a mean particle diameter of 0.5 mm or less and an alumina-raw material having a mean particle diameter of 350 &#x3bc;m or less, wherein a mole ratio of the carbon-raw material to the alumina-raw material (C/AlO) is in a range of 0.8 to 2.0; homogeneously mixing the blend to allow a variation in C component to fall within &#xb1;10%; and melting the obtained mixture in an arc furnace at 1850&#xb0; C. or more.

Aluminum oxycarbide composition and production method therefor

An interior coating material for continuous caster tundishes which consists of a mixture of 5 to 60% by weight of a lightweight magnesia aggregate having a bulk density of 2.0 or less, and 40 to 95% by weight of an aggregate which is one or more substances selected from the group consisting of electrically molten magnesia clinker, seawater magnesia clinker, burnt clinker prepared from natural magnesite, dolomite clinker and spinel clinker, plus binder, hardening agent and fibers.

Lightweight heat-insulating tundish coating material

Hydraulic heat-resisting material of an improved thermal property which has high strength and high volume stability under high temperature is disclosed. The material substantially consists of 5 to 70 parts by weight of a mixture, the mixture consisting of 49.95 to 87.3% by weight of hydraulic cement, 49.95 to 9.7% by weight of amorphous silica and 0.1 to 3% by weight of a dispersing agent, and 95 to 30 parts by weight of a heat-resisting aggregate. Premold product made of the above material is also disclosed.

Hydraulic heat-resisting material and premold product made of such

Growing community of inventors

Fukuoka, Japan

Yoshihiko Uchida