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Method and device for testing tensile strength of monofilaments

A technique of tensile strength and test unit, which is applied in the direction of using stable tension/pressure to test the strength of materials, etc., can solve the problem of random errors in the selection of sample segments that do not take into account the whole roll of fibers, large test uncertainty, and fiber. It can solve problems such as component interference, and achieve the effect of solving low test efficiency and improving test efficiency.

Inactive Publication Date: 2015-11-11
深圳市晟佰特贸易有限公司
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Problems solved by technology

At present, in domestic testing of fiber monofilament strength, only a section of the same fiber sample is generally used to characterize the overall fiber strength, and the average value of the test strength is used as the final result of the fiber strength of the roll, without taking into account the fiber selection of the whole roll Segment random error when sampling segment
[0004] At the same time, the domestic polyacrylic acid white latex fixes the fiber monofilament. The curing time of the glue is more than 4 hours, and the test efficiency is low. At the same time, the glue is used to cure the fiber monofilament. When it brings component interference, the test uncertainty is very large

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  • Method and device for testing tensile strength of monofilaments
  • Method and device for testing tensile strength of monofilaments
  • Method and device for testing tensile strength of monofilaments

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Embodiment Construction

[0032] The following will refer to Attached picture Exemplary embodiments of the present disclosure are described in more detail. Although In the attached picture Exemplary embodiments of the present disclosure have been shown, however, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] Example of a method for testing fiber monofilament tensile strength

[0034] refer to figure 1 , the method for present embodiment testing fiber monofilament tensile strength comprises the steps:

[0035] Step S1, taking a plurality of segment samples from the fiber roll to be tested, each segment sample including a plurality of fiber monofilaments;

[0036] In step S2, a plurality of single-filament...

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Abstract

The invention provides a method and device for testing the tensile strength of monofilaments. The method includes the steps of taking multiple samples from a fiber coil to be tested, wherein each sample comprises multiple monofilaments; conducting testing through a monofilament tensile tester to obtain tensile strength data of the monofilaments corresponding to each sample; averaging the tensile strength data of the monofilaments of all the samples to form the average values of the tensile strength of the monofilaments of the samples; secondarily averaging the average values of the tensile strength data of the monofilaments of all the samples, calculating the dispersion coefficient, and treating the dispersion coefficient as the parameter of the tensile strength of the monofilaments of the fiber coil to be tested. On the basis of the method and device, the test errors of the fiber strength can be reduced, and test efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of fiber tensile strength testing, in particular to a method and device for testing fiber monofilament tensile strength. Background technique [0002] Since the 1990s, composite material technology has developed rapidly. Fiber materials such as glass fiber, carbon fiber, Kevlar fiber, and silicon carbide fiber have been widely used. [0003] At present, the evaluation of the tensile strength of fiber bundles is mainly based on the national standard GB / T3362-1982, which is to measure the tensile strength of fiber bundles after they are dipped in glue. However, there are no relevant standards and regulations for the inspection of fiber monofilament tensile strength. With the development of fine application technology of fiber composite materials, such as micro-conductors in microelectronic devices and micro-circuit semiconductors in nano-robots, it is inevitable to provide a method for quickly determining th...

Claims

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Application Information

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IPC IPC(8): G01N3/08
Inventor 陈卫涛贺应平薛富利左新勇
Owner 深圳市晟佰特贸易有限公司
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