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Sample preparation method for testing inter-laminar shear performance of carbon fiber composite material

A composite material layer and carbon fiber technology, applied in the preparation of test samples, etc., can solve the problem of uneven glue content, achieve uniform glue content, sufficient glue dipping, and less internal defects

Inactive Publication Date: 2011-02-09
JIANGSU HANGKE COMPOSITE MATERIALS TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problem that the sample prepared by the existing sample preparation method is prone to uneven glue content, the present invention provides a sample preparation method for the interlayer shear performance test of carbon fiber composite materials. The sample can obtain more accurate test results of the interlaminar shear performance of the composite material

Method used

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  • Sample preparation method for testing inter-laminar shear performance of carbon fiber composite material

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Embodiment Construction

[0027] exist figure 1 Among them, the arrangement of equipment in the technological process of the present invention is as follows: wire-feeding roller 1-dipping tank 2-pressure roller 3-wire-discharging roller 4-stacking table 5-sample forming tank 6.

[0028] The specific process is as follows:

[0029] 1) Put the sample to be tested on the vertical pay-off roller 1 at a uniform speed. Compared with the previous horizontal structure, the pay-off roller 1 is a vertical structure, which can reduce the swing of the wire; can reduce the swing of the wire , the spinning tension is more uniform;

[0030] 2) Pass the sample passing through the feeding roller 1 through the dipping tank 2, and the dipping time is 3-10 minutes; the dipping tank 2 is a structure with a movable cover that can be easily removed, and the length of the dipping tank 2 is 20-40 cm. The best is 30cm; the dipping tank can completely soak the sample to be tested when it passes through the dipping tank, and th...

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Abstract

The invention relates to a sample preparation method for testing the inter-laminar shear performance of a carbon fiber composite material. The method comprises the following steps of; 1) putting samples to be tested on a fiber releasing roller; 2) performing gum dipping on the samples which pass through the fiber releasing roller by using a gum dipping groove; 3) allowing the gum-dipped samples to pass through a compression roller; 4) uniformly arranging the samples which pass through the compression roller on a fiber arrangement roller; 5) putting the samples arranged on the fiber arrangement roller at a ventilation position and drying for 10 to 14 hours; 6) shearing and laminating for 15 to 20 layers on a laminating platform; and 7) putting laminated sheets into a mold, putting the mold into a sample molding tank, vacuumizing and raising the temperature for molding. The technical problem that non-uniform gum content phenomenon easily occurs in a sample prepared by the conventional sample preparation method is solved. The test sample is dipped in gum more sufficiently and the gum content is more uniform.

Description

technical field [0001] The invention relates to the technical field of material testing, in particular to a sample preparation method for testing the shear performance of carbon fiber composite materials. Background technique [0002] Carbon fiber is a new type of carbon material that emerged in the 1960s. It has high specific strength, high specific modulus, high electrical and thermal conductivity, low thermal expansion coefficient, low density, high temperature resistance, fatigue resistance, creep resistance, and self-improvement. A series of excellent properties such as lubrication, it is an ideal functional material and structural material, widely used in aerospace, civil aviation, cultural and sports, transportation and other fields, and has broad application prospects. [0003] Composite materials with carbon fiber as reinforcement have high specific strength, high specific modulus, good fatigue resistance, good shock absorption, good damage safety, good heat resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 王浩静刘福杰范立东王红飞庞培东刘欢
Owner JIANGSU HANGKE COMPOSITE MATERIALS TECH
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