Title:
A manufacturing method of a cylindrical case and a cylindrical case
Document Type and Number:
Japanese Patent JP6018877
Kind Code:
B2
Abstract:
A cylindrical case includes: a case main body 10 made of a composite material of reinforcing fibers impregnated with a thermosetting resin; and a groove 12 disposed annularly at one end of the case main body 10. A peripheral wall 10a of the case main body 10 is formed by alternately laminating a biaxial fabric layer 13, which includes a biaxial fabric 13A of a non-crimp structure composed of reinforcing fiber bands 13a, 13b having an orientation angle of ±45°, and a roving layer 14, which includes a roving 14A composed of a bundle of reinforcing fibers extending along the circumferential direction. A groove wall 12a of the groove 12 is formed by alternately laminating the biaxial fabric layer 13, which continues to the case main body 10 side, and a triaxial fabric layer 15, which includes a triaxial fabric 15A of a non-crimp structure composed of reinforcing fiber bands 15a, 15b having an orientation angle of ±45° and a reinforcing fiber band 15c having an orientation angle of 0°. It is possible to secure high torsion strength and torsion rigidity of the entire cylindrical case, in a case where the cylindrical case is a fan case which is made of a composite material consisting of reinforcing fibers and a thermosetting resin as the raw material and has an annular groove.
Inventors:
Takashi Tanaka
Hideo Morita
Ikuo Okumura
Yes
Keigo Harada
Dan Yusuke
Hideo Morita
Ikuo Okumura
Yes
Keigo Harada
Dan Yusuke
Application Number:
JP2012235353A
Publication Date:
November 02, 2016
Filing Date:
October 25, 2012
Export Citation:
Assignee:
Ihi Co., Ltd.
IHI Aerospace Co., Ltd.
IHI Aerospace Co., Ltd.
International Classes:
B29C70/06; B29C70/16; F01D25/00; F01D25/24; F02C7/00
Domestic Patent References:
| JP201198523A | ||||
| JP201198524A | ||||
| JP2004160927A | ||||
| JP2009107337A |
Attorney, Agent or Firm:
Koji Nagato
Echizen Masahiro
Echizen Masahiro