Lignyte Co., Ltd.

Maeda Shell Service Co., Ltd.

Japan Cash Machine Co., Ltd.

Toru Seki

Kazuhiko Okamoto

Tokimi Nago

Isamu Ide

Sadao Maeda

Taichi Sato

Koji Kuroiwa

Nobuo Takashima

Keizo Nishiyama

Shinji Nishida

The binder coated refractories comprises the refractory aggregates and the solid-form coating layer which comprises the sugar group as the binder and which is provided to the surface of the refractory aggregates. According to this, the sugar group is used as the binder for bonding the refractory aggregates. Further, even if the sugar group is thermally decomposed, the sugar group emits the carbon dioxide and the water. Therefore, there is little likelihood of emitting the harmful gas. Therefore, it is possible to reduce the environmental pollution. Further, the sugar group is thermally decomposed easily. Therefore, it is possible to manufacture the casting mold having the good breaking property.

Binder coated refractories, casting mold using the same, and method of manufacturing casting mold using the same

An apparatus and a method for producing a casting mold are provided, according to which the casting mold having a complex shape can be obtained with stable quality. The apparatus comprises a mold having a cavity therein, a steam supply unit, a steam supply passage connected to the cavity, steam discharge passages, flow regulators disposed in the steam discharge passages to regulate an amount of the steam discharged from the cavity, and a control unit for controlling the flow regulators. After a resin-coated sand prepared by coating a refractory aggregate with a binder resin is injected into the cavity of the heated mold, superheated steam is supplied into the cavity. At this time, the control unit controls the flow regulators such that the cavity is uniformly filled with the superheated steam.

Apparatus and method for producing casting mold

Growing community of inventors

Sakai, Japan

Toru Seki