Title:
【発明の名称】複合材料の環状パーツの製造に使用する繊維予備成形体の製造方法
Document Type and Number:
Japanese Patent JP2001503480
Kind Code:
A
Abstract:
PCT No. PCT/FR96/01869 Sec. 371 Date May 22, 1998 Sec. 102(e) Date May 22, 1998 PCT Filed Nov. 26, 1996 PCT Pub. No. WO97/20092 PCT Pub. Date Jun. 5, 1997Fiber preforms for use in the manufacture of composite material annular parts are made by winding superposed layers of a strip of cloth (10) of spiral or helical shape comprising substantially helical warp threads and substantially radial weft threads. The mass per unit area of the warp of the helical cloth increases between its inside diameter and its outside diameter, and the layers of the strip of cloth are needled so as to be bonded together by fibers pulled from the yarn of the cloth, the increase in mass per unit area of the warp at least approximately compensating, in terms of density per unit volume of the preform, the decrease in density of the weft between the inside diameter and the outside diameter.
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Inventors:
Orly, Pierre
Coupe, dominique
Bompard, Bruno
Ocagne, Jean
Coupe, dominique
Bompard, Bruno
Ocagne, Jean
Application Number:
JP52022697A
Publication Date:
March 13, 2001
Filing Date:
November 26, 1996
Export Citation:
Assignee:
Societe Nacional Deuteyudo e Do Contriyucón Do Motor Davuación, "S.N.U.U.Se.M. Ah."
Excel Fabry
Excel Fabry
International Classes:
B29C70/32; D04H3/105; D04H18/02; C04B35/83; (IPC1-7): D04H1/70; C04B35/83; D04H1/46; D04H3/07
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)