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Aging testing method for simulating practical operation environment of rubber sealing ring

A technology of working environment and aging test, which is applied in the aging test of rubber and the field of aging test simulating the actual working environment of rubber to achieve the effect of accurate test results

Inactive Publication Date: 2016-06-01
NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the deficiencies in the existing rubber aging test methods, and provides an aging test method for simulating the actual working environment of rubber sealing rings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An aging test method simulating the actual working environment of a rubber sealing ring, characterized in that it comprises the steps:

[0020] 1) Select the cyanide nitrile material used for the sealing ring and process it into The sealing ring sample;

[0021] 2) Use a compression fixture to apply stress to the sample, so that the sample is deformed, and the compression rate is 30%;

[0022] 3) Place the fixture and the sample in the salt spray test chamber, set the temperature to 30°C, and set the sedimentation rate of the NaCl salt solution to 2ml / (80cm 2 h), the concentration of NaCl salt solution is 5wt%, and the holding time is 48h;

[0023] 4) Put the jig and sample into the high temperature test box for high temperature test, the duration is 72h at 80°C;

[0024] 5) Put the jig and sample into the low temperature test box for low temperature test, the duration is 24h at -25°C;

[0025] 6) Take out the sample and place it in a free state. After the measured...

Embodiment 2

[0027] An aging test method simulating the actual working environment of a rubber sealing ring, characterized in that it comprises the steps:

[0028] 1) Select the cyanide nitrile material used for the sealing ring and process it into The sealing ring sample;

[0029] 2) Use a compression fixture to apply stress to the sample, so that the sample is deformed, and the compression rate is 20%;

[0030] 3) Place the fixture and the sample in the salt spray test chamber, set the temperature to 30°C, and set the sedimentation rate of the NaCl salt solution to 1ml / (80cm 2 h), the concentration of NaCl salt solution is 5wt%, and the holding time is 96h;

[0031] 4) Put the jig and sample into the high temperature test chamber for high temperature test, the duration is 48h at 100°C;

[0032] 5) Put the jig and sample into the low temperature test box for low temperature test, the duration is 72h at -10°C;

[0033] 6) Take out the sample and place it in a free state. After the mea...

Embodiment 3

[0035] An aging test method simulating the actual working environment of a rubber sealing ring, characterized in that it comprises the steps:

[0036] 1) Select the cyanide nitrile material used for the sealing ring and process it into The sealing ring sample;

[0037] 2) Use a compression fixture to apply stress to the sample, so that the sample is deformed, and the compression rate is 40%;

[0038] 3) Place the fixture and the sample in the salt spray test chamber, set the temperature to 30°C, and set the sedimentation rate of the NaCl salt solution to 3ml / (80cm 2 h), hold time 24h;

[0039] 4) Put the jig and sample into the high temperature test box for high temperature test, the duration is 24h at 125°C;

[0040] 5) Put the jig and sample into the low temperature test chamber for low temperature test, the duration is 48h at -15°C;

[0041] 6) Take out the sample and place it in a free state. After the measured sample returns to its height, the mechanical properties a...

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Abstract

The invention relates to an aging testing method for simulating the practical operation environment of a rubber sealing ring. The method comprises the steps of applying stress to the rubber sealing ring, applying salt spray to the rubber sealing ring, applying high temperature to the rubber sealing ring, and applying low temperature to the rubber sealing ring. The method has the benefits that the salt-spray corrosion, stress effect and high and low temperature environment of the rubber sealing ring in the practical environment are sufficiently taken into account, the test process is more closer to the practical operation environment of the rubber sealing ring, and the test result is more accurate.

Description

technical field [0001] The invention relates to an aging test method for rubber, in particular to an aging test method for simulating the actual working environment of rubber, and belongs to the technical field of accelerated degradation tests. Background technique [0002] Rubber materials and their products have been widely used in petroleum, construction, automobile, aerospace and other fields due to their unique and excellent performance. Using experimental methods to study rubber aging can clarify the law and mechanism of rubber aging, and can predict its service life. The natural aging of rubber usually takes several years. Therefore, it has become a practical method to use accelerated aging methods to study the aging properties of rubber materials. feasible way. [0003] Currently commonly used accelerated aging methods include hot air accelerated aging, oxygen bomb accelerated aging, artificial climate accelerated aging, damp heat accelerated aging, ozone accelerate...

Claims

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Application Information

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IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 洪亮崔旭涛张福光胡小国杨志宏马小兵周强
Owner NAVAL AERONAUTICAL & ASTRONAUTICAL UNIV PLA
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