Title:
VARIABLE-THICKNESS PREFORM, COMPOSITE COMPONENT, AND YARN REDUCTION METHOD FOR VARIABLE-THICKNESS PREFORM
Document Type and Number:
WIPO Patent Application WO/2020/192162
Kind Code:
A1
Abstract:
A variable-thickness preform (1), a composite component, and a yarn reduction method for a variable-thickness preform. The variable-thickness preform comprises: a main fiber portion (3) formed by several warp yarns and weft yarns; and a drawn portion formed by drawn fibers obtained by separating, from the main fiber portion, warp yarns and weft yarns which form the main fiber portion (3), the drawn portion causing the number of fibers of the preform in at least one direction to be reduced. The drawn fibers comprise drawn warp yarns and drawn weft yarns drawn out of the main fiber portion from drawing points (4), and the drawn weft yarns do not comprise a weft yarn located, during drawing, on the outer side of a surface warp yarn. Therefore, a yarn disintegration phenomenon of the preform caused by yarn reduction is avoided, and thus the integrality of the preform is improved; by adjusting and optimizing the structure and movement rule of the drawing points (4), net shape manufacturing of the variable-thickness profile preform (1) is achieved.
Inventors:
ZHAO QIAN (CN)
ZHOU HAILI (CN)
LI CHAO (CN)
ZHANG LIQUAN (CN)
GUO HONGWEI (CN)
ZHOU HAILI (CN)
LI CHAO (CN)
ZHANG LIQUAN (CN)
GUO HONGWEI (CN)
Application Number:
PCT/CN2019/121016
Publication Date:
October 01, 2020
Filing Date:
November 26, 2019
Export Citation:
Assignee:
SINOMA SCIENCE & TECH CO LTD (CN)
International Classes:
D03D25/00
Domestic Patent References:
| WO2015177473A1 | 2015-11-26 |
Foreign References:
| CN109972271A | 2019-07-05 | |||
| CN103998663A | 2014-08-20 | |||
| CA2744963C | 2016-11-08 | |||
| CA2858926A1 | 2013-06-20 | |||
| US20180339468A1 | 2018-11-29 | |||
| CN104790116A | 2015-07-22 | |||
| CA2858790A1 | 2013-06-20 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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