Online testing system of polymer cushion stress loading and testing method

A stress loading and online testing technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problem of low accuracy and reliability of test data, difficult synchronization and coordination of compression nuts, and inability to achieve stress autonomous loading. and other problems, to achieve the effect of improving the level of automation technology, improving reliability and data security, and detecting accurate and reliable data.

Inactive Publication Date: 2013-05-01
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Abstract
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Problems solved by technology

In the actual operation of this device, it is very difficult to coordinate the three booster nuts, that is, the compression nut, and it is difficult to control the force of the three to be consistent. The control of the loading pressure is relatively rough, and the actual accuracy is difficult to control. Low; at the same time, the device cannot realize stress autonomous loading and cannot online detect changes in parameters such as stress, strain and temperature

Method used

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  • Online testing system of polymer cushion stress loading and testing method

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Embodiment 1

[0043] An on-line testing system for stress loading of polymer cushions is composed of a stress loading device and an online detection system; the stress loading device is composed of a base assembly, a sample sleeve, a pressure column assembly, a force application assembly and a limit rod from bottom to top; The base assembly is composed of a base 11, a sample backing plate 12 and a limit backing plate 13 located in the middle of the upper end surface of the base 11, the cushion layer sample is located on the sample backing plate 12, and a temperature sensor plug is left on the side of the sample backing plate 12. hole; the sample casing is composed of a lower hole tube 21 and an upper hole tube 22, the lower hole tube 21 is installed with a pressure column assembly, the upper hole tube 22 is equipped with a force application component outside, and a limit rod 3 is installed inside, and the limit rod 3 is mainly It is used for the installation and positioning of the displaceme...

Embodiment 2

[0058] An on-line testing system for stress loading of polymer cushions is composed of a stress loading device and an online detection system; the stress loading device is composed of a base assembly, a sample sleeve, a pressure column assembly, a force application assembly and a limit rod from bottom to top; The base assembly is composed of a base 11, a sample backing plate 12 and a limit backing plate 13 located in the middle of the upper end surface of the base 11, the cushion layer sample is located on the sample backing plate 12, and a temperature sensor plug is left on the side of the sample backing plate 12. hole; the sample casing is composed of a lower hole tube 21 and an upper hole tube 22, the lower hole tube 21 is installed with a pressure column assembly, the upper hole tube 22 is equipped with a force application component outside, and a positioning rod 3 is installed inside, and the limit rod 3 is mainly used For the installation and positioning of the displaceme...

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Abstract

The invention discloses an online testing system of polymer cushion stress loading for testing the compressive stress strain of polymer materials including a cushion and the like. The online testing system comprises a stress loading device and an online detecting system, wherein the stress loading device comprises a base component, a test piece sleeve, a compression column component, a force application component and a limiting rod; and the online detecting system comprises a pressure sensor, a temperature sensor, a displacement sensor, an online detecting collector, a database server and online detecting data analysis software. According to the invention, the functions of testing the fixed compression amount stress relaxation and the fixed compression stress strain can be realized. The independent stress loading can be realized in the two test states; the compression amount of the cushion can be controlled precisely in the quantitative compression stress relaxation test; meanwhile, the online detection, automatic data acquisition, storage and analysis of the stress, displacement and temperature indexes are realized; the automation technology level of the system is improved integrally; and the data detection is accurate and reliable.

Description

technical field [0001] The present invention relates to the compressive stress-strain test of polymer materials, in particular to an on-line test system for stress loading of polymer cushions and its test method for compressive stress and strain tests of polymer materials such as cushions under simulated working conditions . Background technique [0002] At present, the research on the compressive stress and strain of polymer cushions is mainly based on the long-term compressive stress relaxation test device, which mainly consists of three sets of loading columns, three sets of compression nuts, limit columns, limit nuts, limit rings, upper It is composed of pressure plate, lower pressure plate and sensor. During the test, place the cushion to be tested between the upper platen and the lower platen, adjust the height of the limit nut according to the predetermined compression of the cushion, and then tighten the nuts on the three sets of loading columns to fix the cushion a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
Inventor 刘建平张晓华周筱雨王炳舟王培马华
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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