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Title:
METHOD FOR TESTING FIBER ORIENTATION OF LONG FIBER REINFORCED THERMOPLASTICS, AND SYSTEM FOR TESTING FIBER ORIENTATION OF LONG FIBER REINFORCED THERMOPLASTICS
Document Type and Number:
WIPO Patent Application WO/2020/147320
Kind Code:
A1
Abstract:
Disclosed is a method for testing the fiber orientation of long fiber reinforced thermoplastics. The method comprises: determining the distribution, in a thickness direction, of fiber layers of a composite workpiece, and the position of each of the fiber layers; using a slicer to respectively slice and sample each of the fiber layers of the composite workpiece; acquiring a fiber orientation distribution map of each sliced sample under a scanning electron microscope; measuring an angle of orientation of each fiber in the fiber orientation distribution map, and grouping and classifying, according to the angles of orientation, the fibers into different included angle intervals; and compiling statistics of the number of fibers in each of the included angle intervals and the proportion thereof in the total number of fibers in a corresponding sliced sample to obtain a fiber orientation distribution result of each of the fiber layers. The method for testing the fiber orientation of long fiber reinforced thermoplastics can be used for accurate sampling in each target area of a composite workpiece and realize quantitative analysis of fiber orientation arrangement.

Inventors:
GAO GUOLI (CN)
YUAN LIN (CN)
LV WEI (CN)
DONG QIANG (CN)
WEN JIANCHUN (CN)
DU ERFENG (CN)
Application Number:
PCT/CN2019/104791
Publication Date:
July 23, 2020
Filing Date:
September 06, 2019
Export Citation:
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Assignee:
SHENZHEN SILVER BASIS TECHNOLOGY CO LTD (CN)
International Classes:
G01N23/2251; G01N23/2202
Foreign References:
CN109632857A2019-04-16
CN106970099A2017-07-21
CN103091324A2013-05-08
JPH11153585A1999-06-08
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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