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Gluing fixed support for tensile property tests on fiber multifilaments and fiber multifilament sample preparing method

A fiber multifilament and tensile property technology, applied in the preparation of test samples, measuring devices, strength characteristics, etc., can solve the problem of inability to adjust and control the size of the tension, achieve reliable data, ensure the success rate, and improve the pass rate Effect

Active Publication Date: 2012-10-31
BEIJING UNIV OF CHEM TECH
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Problems solved by technology

[0004] The present invention has designed a kind of fiber multifilament tensile performance test gluing fixing frame and fiber multifilament sample preparation method, and the technical problem it solves is that the tension force of fiber multifilament gluing solidification in the existing fiber multifilament tensile performance test is Straightening and tightening by spring or hand, the tension cannot be adjusted and controlled

Method used

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  • Gluing fixed support for tensile property tests on fiber multifilaments and fiber multifilament sample preparing method
  • Gluing fixed support for tensile property tests on fiber multifilaments and fiber multifilament sample preparing method
  • Gluing fixed support for tensile property tests on fiber multifilaments and fiber multifilament sample preparing method

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Embodiment Construction

[0026] Combine below Figure 1 to Figure 4 , the present invention is further described:

[0027] Such as figure 1 As shown, a glued fixing frame for fiber multifilament tensile performance testing includes a fixed frame body 1, one end of the fixed frame body 1 is provided with a plurality of fixed round rods 6, and the other end of the fixed frame body 1 is also correspondingly arranged There are the same number of separating round rods 7, and each dipped fiber multifilament 2 forms two parts parallel to each other by hanging on a fixed round rod 6, and the two ends of the dipped fiber multifilament 2 are respectively located in a separate Both sides of the round stick 7 are connected to a heavy object suspended in the air through a clamp 3, and the round stick 7 is separated to ensure that the two parallel parts of the dipped fiber multifilament 2 will not be bonded together. The two ends of the dipped fiber multifilament 2 are tightly wound on the silica gel strip 9 and ...

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Abstract

The invention relates to a gluing fixed support for tensile property tests on fiber multifilaments and a fiber multifilament sample preparing method. The gluing fixed support comprises a fixed support body, one end of the fixed support body is provided with a plurality of fixed round rods, the other end of the fixed support body is correspondingly provided with separating round rods (the number of the separating round rods is the same as the number of the fixed round rods), each glue-dipped fiber multifilament after being hung on one fixed round rod is formed into two mutually-parallel parts, the two ends of each glue-dipped fiber multifilament are respectively located on both sides of one separating round rod and connected with a heavy object (hung in the air) through a fixture, and the masses of the heavy objects are the same so as to ensure that the cured tensile forces of the glue-dipped fiber multifilaments are completely the same. The fiber multifilament is fixed at one end of the gluing fixed support for tensile property tests on fiber multifilaments disclosed by the invention, and the other end of the gluing fixed support ensures that a fiber always has a constant tensile force in the process of glue dipping and curing by way of hanging weights, therefore, bent sample bands or sample bands with glue beads do not occur, and the yield rate of the sample band is 100%, thereby greatly improving the qualified rate of the sample band.

Description

technical field [0001] The invention relates to a gluing fixing frame for testing the tensile properties of fiber multifilaments and a sample preparation method for fiber multifilaments. Background technique [0002] GB / T 3362—2005 Carbon Fiber Multifilament Tensile Performance Test Method and GJB348-87 Aramid Multifilament Tensile Performance Test Method both have the process of multifilament dipping and curing, but the tension of the existing glue fixing frame is Straightening and tensioning of the multifilament is the standard, and the tension cannot be measured and controlled during curing, and it is easy to bend the cured spline and produce glue beads due to reasons such as loosening of the fixed end, thermal expansion and contraction, and the weight of the impregnated multifilament. (See "Journal of Composite Materials" 2009, 29 (2): 17). In this way, the production rate of qualified splines is reduced, and the obtained performance data has large dispersion. [0003]...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N1/28
Inventor 杨延风张学军田艳红
Owner BEIJING UNIV OF CHEM TECH
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