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Method for detecting tension strength and elongation of filaments

A technology of tensile strength and detection method, which is applied in the direction of applying stable tension/pressure to test material strength, strength characteristics, measuring devices, etc., which can solve the problem of difficult guarantee of product quality indicators, unprofessional product testing methods, and incomplete testing results, etc. problems, to achieve the effect of benefiting product quality indicators, improving the accuracy of test values, and monitoring product quality indicators

Inactive Publication Date: 2019-03-22
浙江龙赛尔纤维科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no unified standard and testing method for this project in China. The company's product testing methods are unprofessional and only test for a single performance, resulting in incomplete test results and even wrong test data, which makes it difficult to guarantee product quality indicators and directly affects production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method for detecting filament tensile strength and elongation, comprising the following steps:

[0042] Step S1: Select multiple filaments just dropped from the spinning production workshop as samples, select three groups of samples with different linear density specifications, each group is 5 samples, and the surface of the selected samples is smooth and shiny, free of hairs, defects, The range of code length is comprehensive;

[0043] Step S2: Pull out the thread head of the sample, pull the surface layer tens of meters away, set the number of winding turns of the yarn length measuring machine to 100 turns, perform pre-winding calibration and reset, and the thread end is wound on the On the clip of the skein yarn length measuring machine, start to wind the length of the sample. After the yarn length measuring machine stops completely, cut it at the junction of the head and tail, remove the sample, and put the intercepted sample into the electronic balance for weighi...

Embodiment 2

[0062] The difference of this embodiment on the basis of Embodiment 1 is that the number of samples in each group in step S1 is 8; step S5 intercepts a sample with a length of 100 cm; Use ultrasonic vibration to immerse in deionized water for 3 minutes, then stand still for 3 minutes and take it out. During the taking out process, pay attention to maintaining the original twist of the sample; step S9, open the oven in advance for preheating, and set the oven temperature to 105°C; step S12, wait for 2 hours until weighing The count of the electronic balance in the beaker is constant; step S14 selects a plurality of filaments falling in the spinning production workshop within two hours as samples, and selects samples of various linear density specifications, and the number of samples of each specification is 20.

Embodiment 3

[0064] The difference of this embodiment on the basis of Embodiment 1 is that the number of samples in each group in step S1 is 10; step S5 intercepts a sample with a length of 120 cm; Use ultrasonic vibration to immerse in deionized water for 5 minutes, then stand still for 5 minutes and take it out. During the taking out process, pay attention to maintaining the original twist of the sample; Step S9 opens the oven in advance for preheating, and sets the oven temperature to 110°C; Step S12 Wait for 2.5 hours until weighing The counting of the electronic balance in the measuring beaker is constant; step S14 selects a plurality of filaments falling in the spinning production workshop within two hours as samples, and selects samples of various linear density specifications, and the number of samples of each specification is 30.

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Abstract

The invention relates to a method for detecting tension strength and elongation of filaments. The method comprises the following steps: testing fineness of a sample and recording for statistics; testing the tensile property of the sample and recording for statistics; testing the tensile property of the sample in a wet state and recording for statistics; calculating a moisture regain rate of the sample according to data obtained before and after the same is dried, and recording for statistics; calculating a standard deviation and an average value on a computer, and enabling the standard deviation to be divided by the average value to obtain a variation coefficient of the fineness, and recording; recording the recorded data in a comprehensive list, and drawing a performance histogram and a performance curve chart of the filaments. The method can be used for detecting multiple physical properties of the filament samples, the detection results are comprehensive, and the data is accurate; the method is beneficial to monitoring of product quality indicators, and improves the production efficiency.

Description

technical field [0001] The invention relates to the technical field of yarn detection, in particular to a method for detecting the tensile strength and elongation of filaments. Background technique [0002] With the increase of domestic textile fiber production capacity and the expansion of market customer usage, in order to be responsible to users and meet customer requirements for product quality, it is necessary to test and adjust the performance of fiber filaments. At present, there is no unified standard and testing method for this project in China. The company's product testing methods are not professional, and only test for a single performance, resulting in incomplete test results and even wrong test data, which makes it difficult to guarantee product quality indicators and directly affects production. In order to solve the above problems, a comprehensive testing method for the physical properties of fiber filaments is urgently needed. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/36G01N3/08G01N5/04G01N5/00
CPCG01N3/08G01N5/00G01N5/04G01N33/365G01N2203/0017G01N2203/0236G01N2203/028
Inventor 陆鑫杰朱广道高振兴陈焕军马国威
Owner 浙江龙赛尔纤维科技有限公司
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