Title:
PREFORM HAVING PRESET HOLE CHANNELS HAVING YARNS IMPLANTED AND PREPARATION METHOD FOR PREFORM
Document Type and Number:
WIPO Patent Application WO/2023/065911
Kind Code:
A1
Abstract:
A preform having preset hole channels having yarns implanted and a preparation method for the preform, which are applied to the field of fiber preforms. The preparation method comprises the following steps: designing widening yarn having certain width and thickness according to the property requirements of a composite material; sequentially flatly laying the widening yarn in multiple directions; for the used widening yarn, machining holes having a certain diameter in center lines or edges of yarn bundles in the length direction; by means of computer aided design, flatly laying widening yarn having various widths in multiple directions and multiple layers; forming regular holes channels in the thickness direction, the formed hole channels being perpendicular to the flatly laid yarn layer, inclined in a single direction, inclined in multiple directions, etc.; and flatly laying the widening yarn to have a required thickness size, and then filling fibers into the hole channels one by one under the control of a computer program to form a preform. The method avoids the abrasion of fiber bundles in a conventional preform forming process, reduces the device complexity, and improves the product properties.
Inventors:
ZHU JIANXUN (CN)
QU SHUYA (CN)
ZHANG FANGCHAO (CN)
ZHENG YUN (CN)
CHEN TINGTING (CN)
XING DANDAN (CN)
WANG FANGFANG (CN)
QU SHUYA (CN)
ZHANG FANGCHAO (CN)
ZHENG YUN (CN)
CHEN TINGTING (CN)
XING DANDAN (CN)
WANG FANGFANG (CN)
Application Number:
PCT/CN2022/119353
Publication Date:
April 27, 2023
Filing Date:
September 16, 2022
Export Citation:
Assignee:
NANJING FIBERGLASS RES AND DESIGN INSTITUTE CO LTD (CN)
CHINA NAT BUILDING MATERIAL GROUP CO LTD (CN)
CHINA NAT BUILDING MATERIAL GROUP CO LTD (CN)
International Classes:
D03D25/00; D06C23/04
Foreign References:
| CN113246585A | 2021-08-13 | |||
| CN114411306A | 2022-04-29 | |||
| CN1247581A | 2000-03-15 | |||
| CN111746061A | 2020-10-09 | |||
| CN109080235A | 2018-12-25 | |||
| CN111169053A | 2020-05-19 | |||
| CN214354629U | 2021-10-08 | |||
| CN103737940A | 2014-04-23 | |||
| US6003563A | 1999-12-21 | |||
| JP2002201550A | 2002-07-19 |
Attorney, Agent or Firm:
BEIJING GEYUN INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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