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A Multifunctional Fiber Torsional Fatigue Performance Tester

A torsional fatigue, tester technology, applied in the direction of testing the strength of materials using applied repetitive force/pulsation force

Inactive Publication Date: 2018-04-06
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no instrument that can test torsional fatigue and measure the length change due to torsion in different environmental atmospheres at the same time

Method used

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  • A Multifunctional Fiber Torsional Fatigue Performance Tester
  • A Multifunctional Fiber Torsional Fatigue Performance Tester
  • A Multifunctional Fiber Torsional Fatigue Performance Tester

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0019]Take a cotton fiber with a length of 150mm, fix one end of it with a fiber holder, and the other end goes around the wheel and applies a 10g weight as tension, then the fiber holding tension at this time is 10cN. Through the control system, turn on the ambient atmosphere generator, adjust the temperature generator, and set the temperature to 50 degrees Celsius, so that the fiber under test is at this temperature, ready for the experiment. Turn on the switch of the torsion motor, adjust the rotation speed to 500r / min, set the motor to take the position angle of the fiber at rest as 0 degrees, first rotate 100 times forward and then reverse 100 times, and perform cyclical and alternating motions so that the fiber can be tested for torsional fatigue performance . During the torsional movement, due to the reduction of the length of the fiber, the rotation angle of the wheel is accepted by the pulse signal sent by the encoder, and then the fiber length tester sends the data t...

specific Embodiment 2

[0020] Take a cotton fiber with a length of 150mm, fix one end of it with a fiber holder, and the other end goes around the wheel and applies a 10g weight as tension, then the fiber holding tension at this time is 10cN. Through the control system, turn on the ambient atmosphere generator, adjust the humidity generator, and set the humidity to 70%, so that the fiber under test is at this humidity, ready for the experiment. Turn on the switch of the torsion motor, adjust the rotation speed to 500r / min, set the motor to take the position angle of the fiber at rest as 0 degrees, first rotate 100 times forward and then reverse 100 times, and perform cyclical and alternating motions so that the fiber can be tested for torsional fatigue performance . During the torsional movement, due to the reduction of the length of the fiber, the rotation angle of the wheel is accepted by the pulse signal sent by the encoder, and then the fiber length tester sends the data to the PC, which can dis...

specific Embodiment 3

[0021] Take a cotton fiber with a length of 150mm, fix one end of it with a fiber holder, and the other end goes around the wheel and applies a 10g weight as tension, then the fiber holding tension at this time is 10cN. Through the control system, turn on the ambient atmosphere generator, turn on the radiation generator, apply ultraviolet light, make the fiber under test under the radiant light, and prepare for the experiment. Turn on the switch of the torsion motor, adjust the rotation speed to 500r / min, set the motor to take the position angle of the fiber at rest as 0 degrees, first rotate 100 times forward and then reverse 100 times, and perform cyclical and alternating motions so that the fiber can be tested for torsional fatigue performance . During the torsional movement, due to the reduction of the length of the fiber, the rotation angle of the wheel is accepted by the pulse signal sent by the encoder, and then the fiber length tester sends the data to the PC, which ca...

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Abstract

The invention relates to a multifunctional tester for the torsional fatigue performance of a fiber, and belongs to the technical field of spinning measuring. The tester is mainly composed of an instrument base, a torsional motor, a fiber clamping device, an environment atmosphere generator, a fiber length testing meter, a breakage detecting device and other parts. By means of the multifunctional tester for the torsional fatigue performance of the fiber, the structure of a traditional tester for the torsional fatigue of the fiber is changed, and the tester is suitable for testing the torsional fatigue performance of the fiber in different environment atmospheres; meanwhile, changes of the length of the fiber in the process can be recorded, the different external environment atmospheres can be truly simulated, various tested indexes can be more accurate and more objective, and theoretical bases can be provided for researching the various performance indexes of the fiber. The tester is reasonable in structure and convenient to operate and use.

Description

technical field [0001] The invention relates to a multifunctional fiber torsional fatigue performance tester, which belongs to the technical field of textile measurement. Background technique [0002] The torsional fatigue phenomenon of fibers is very common in practical applications, such as the torsion effect caused by twisting during the fiber forming process; the fiber is subjected to repeated tension, compression, bending and torsion during use after the fiber is made into a rope. In addition, due to their high crystallinity and high degree of orientation, some fibers lack transverse connection and poor shear performance, which makes their compression and torsion performance quite poor. Therefore, it is of great research value to test the torsional fatigue performance of fibers. [0003] At present, there is some research on the performance test of fiber torsional fatigue, such as the "Sheep Fiber Torsional Fatigue Tester" in the article "Research on the Repeated Torsi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/38
Inventor 李文斌徐卫林蔡光明李林峰
Owner WUHAN TEXTILE UNIV
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