Toray Industries, Inc.

Toru Nishikawa

Fumiyasu Nomura

Shigeki Chieda

Ryuta Abe

Naoto Hosotani

Taku Yamamoto

Kazuyuki Gondo

A gas blowoff nozzle includes: a casing including a gas blowoff face that blows off gas; a gas supply port provided to one end of the casing and supplying gas along the longitudinal direction of the nozzle; and a pressure equalizing chamber communicating with the gas supply port and the gas blowoff face, and including a partition plate including a plurality of tubular bodies having orifices on both ends. In each of the tubular bodies, an angle θ that a wall surface on a side closer to the gas supply port forms with the partition plate is 55° to 120° as an interior angle in a sectional shape of each of the tubular bodies. A gas circulation hole is provided on a face of each of the tubular bodies that comes into contact with the partition plate, the gas circulation hole passing through the face and the partition plate.

Gas blowoff nozzle and furnace, and method for manufacturing coated film

There is provided an oxidation heat treatment oven including a heat treatment chamber configured to heat-treat a fiber bundle that is an aligned acrylic fiber bundle in an oxidizing atmosphere to form an oxidized fiber bundle; a slit-shaped opening configured to take the fiber bundle in and out of the heat treatment chamber; guide rollers installed at both ends of the heat treatment chamber and configured to turn the fiber bundle back; a hot air supply nozzle that has a longitudinal axis along the width of the fiber bundle traveling and that blows out hot air, in a direction substantially parallel to a traveling direction of the fiber bundle, above and/or below the fiber bundle traveling in the heat treatment chamber; and a suction nozzle configured to suck the hot air blown out from the hot air supply nozzle, in which the hot air supply nozzle satisfies disclosed conditions (1) to (3).

Oxidation heat treatment oven and method for manufacturing oxidized fiber bundle and carbon fiber bundle

An air flow controller includes: a box-shaped body cover that is disposed above and/or below a film running surface to be adjacent to an upstream side of an entrance of a tenter oven in a film running direction and/or a downstream side of an exit of the tenter oven in the film running direction, the box-shaped body cover extending in the film running direction and having a surface facing the film running surface and being open. The box-shaped body cover includes at least one partition structural body in the box-shaped body cover, the partition structural body extending in a width direction of the film and separating inside of the box-shaped body cover into a plurality of chambers, and each of at least two of the chambers is provided with an air discharge mechanism configured to discharge air in a corresponding chamber.

Air flow controller and manufacturing method of stretched film

An airflow control apparatus for a tenter oven including an entrance into which a film is conveyed and an exit from which the film is taken out, the airflow control apparatus having a box-shaped body installed adjacent to at least one or both of an upstream side in a film running direction of the entrance and a downstream side in the film running direction of the exit, includes: at least one pair of air blowing nozzles configured to blow air toward the film; at least one pair of upstream-side exhaust mechanisms configured to discharge air in the box-shaped body, and located on the upstream side of the air blowing nozzles in the film running direction; and at least one pair of downstream-side exhaust mechanisms configured to discharge the air in the box-shaped body, and located on the downstream side of the air blowing nozzles in the film running direction.

Growing community of inventors

Otsu, Japan

Toru Nishikawa