Toshiba Monofrax Co., Ltd.

Haruo Kawashima

Kimio Hirata

Shigeo Endo

Takao Uchiya

Yasuo Misu

Yasuo Saito

Akira Itoh

Hideo Yanagi

A molten fiber material flow is rendered into a plurality of fibers by means of a liquid jet such as water jet in place of a pressurized gas or air. The flow moves downwardly in a vertical direction while the water jet cuts it at an inclined angle. The water jet is formed by a single nozzle or plural nozzles of a flat-jet or round-jet type.

Method and apparatus for producing fibers

A method for manufacturing a fused cast refractory article including the steps of pouring a molten refractory material into a cavity of a mold including a casting sand held by a negative pressure applied through the sand and against a thermoplastic film which surrounds the mold cavity, casting and cooling off the refractory material, wherein the negative pressure is maintained after the casting. The mold includes an upper mold portion including a frame, a casting sand, and a thermoplastic film; a bottom mold portion including a frame, a casting sand and a thermoplastic film; and a cavity defined by the thermoplastic film between the upper and bottom mold portion and having an inlet opening.

Method for manufacturing a fused cast refractory

A laminar block for lining an inner wall of a furnace is composed of a number of individual laminated sheets of inorganic fibers sewed together by means of chain stiches. When the laminar block is cut to size, severing the thread, the chain stitches prevent the laminated sheets from separating.

Laminar block and method of and apparatus for producing the laminar block

Growing community of inventors

Narita, Japan

Haruo Kawashima