公开(公告)号：JP2002040223A

公开(公告)日：2002-02-06

申请号：JP2000221892

申请日：2000-07-24

Applicant: TORAY INDUSTRIES

Inventor： YAMADA TOMONORI ,  NARITA ISAO ,  SUZUKI TETSUO

IPC: G02B5/20 ,  F27D3/12 ,  H05B3/68

Abstract: PROBLEM TO BE SOLVED: To provide a holding member for the objective body to be heated so as not to leave transfer traces on the objective body to be heated, and to provide a heating furnace. SOLUTION: The holding member is used to hold the objective body to be heated when the objective body is heated by using a heating source, and the holding member has

公开(公告)号：JPH05132824A

公开(公告)日：1993-05-28

申请号：JP29896491

申请日：1991-11-14

Applicant: TORAY INDUSTRIES

Inventor： ENDO MAKOTO ,  NARITA ISAO ,  TSUNODA ATSUSHI

IPC: D01F9/22 ,  D01F9/32

Abstract: PURPOSE:To obtain the subject uniform yarn through mass baking by making precursor fibers travel through a relevant oven by a specific conveying means. CONSTITUTION:A set of conveyors 2 (2-1 to 2-3) to allow precursor fibers 4 travel in a hot air-circulating oven 3 for making the fibers resistant to flame is made up from conveyor belts bridged over rollers 7-1, 7-2. The inside of the conveyor belts is connected to a suction means for gas and the belts are made passable to air, and a high-temperature oxidative gas is ensured to pass from the outside to inside of the belts by the suction means.

公开(公告)号：JPH0681223A

公开(公告)日：1994-03-22

申请号：JP23101592

申请日：1992-08-31

Applicant: TORAY INDUSTRIES

Inventor： NARITA ISAO ,  ENDO MAKOTO ,  SANO TAKAO

IPC: D01F9/22 ,  D02J1/18

Abstract: PURPOSE:To remarkably increase the heat-removing rate, considerably shorten the flame-resisting treatment time without deteriorating the properties of the product and produce a carbon fiber in high productivity by heating a yarn of polyacrylonitrile precursor fibers in opened state at a specific yarn occupancy to effect the flame-resisting treatment and carbonizing the product. CONSTITUTION:A polyacrylonitrile precursor fiber yarn 1 composed of 1,000,000 filaments having single fiber denier of 1d is made to contact with a vibration guide 3 and opened in a state to attain a yarn occupancy of the precursor fiber 1 of 0.1-20% while applying vertical vibration to the yarn in a direction perpendicular to the moving direction of the yarn. Hot air is passed perpendicular to the precursor fiber 1 at a flow rate of 2m/s in this opening process in hot-air circulation flame-resisting treatment apparatuses 4, 4', 4'' and the yarn is subjected to the flame-resisting treatment in three stages at 253 deg.C in the 1st furnace 4, 262 deg.C in the 2nd furnace 4' and 272 deg.C in the 3rd furnace 4''. The flame-resistant fiber is carbonized in nitrogen atmosphere at 1400 deg.C to obtain the objective carbon fiber in high productivity and considerably shortened flame- resisting treatment time at a remarkably increased heat-removing rate.

公开(公告)号：JPH05148780A

公开(公告)日：1993-06-15

申请号：JP31501291

申请日：1991-11-28

Applicant: TORAY INDUSTRIES

Inventor： TSUNODA ATSUSHI ,  MIZUGUCHI TOYOKAZU ,  NARITA ISAO

IPC: D07B1/16 ,  B32B5/28

Abstract: PURPOSE:To obtain the subject lightweight product, having corrosion resistance, good in operating efficiency and suitable for building materials or civil engineering by impregnating fiber bundles with an epoxy resin in a specific proportion, semicuring the resin, twisting the resultant fiber-reinforced composite element wires and then thermosetting the resin. CONSTITUTION:Fiber bundles (generally fiber bundles of carbon fiber, aramid fiber or glass fiber) are initially impregnated with an epoxy resin so as to provide 40-70wt.% fiber content and then preferably semicured by a method for treatment at 80-120 deg.C for 1-5min. The resultant plural fiber-reinforced composite element wires having 1-5 mm diameter are subsequently twisted to afford a fiber-reinforced composite material, which is then heat-treated preferably at 150-180 deg.C for 2-5min and cured to provide the objective product. Furthermore, the diameter of the product is preferably 3-50mm from the viewpoint of use as a substitute wire rope in applications of civil engineering and construction. The number of twists of the rope is preferably 1-10 turns/m in aspects of shape retaining properties, etc.