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Method for determining storage life of rubber sealing element in long-term storage product

A determination method and storage life technology, which are applied to measurement devices, use repetitive force/pulsation force to test the strength of materials, instruments, etc., can solve the high cost of organization and implementation, and the storage life determination method and difficulty of rubber seals are not found. big problem

Pending Publication Date: 2020-07-07
中国人民解放军63961部队
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The natural aging test is undoubtedly the most accurate method for determining the results, but the test time is long, and the long-term follow-up test and data analysis work make the organization and implementation costly and difficult
However, there is no research on the determination method of the storage life of rubber seals used in long-term storage products.

Method used

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  • Method for determining storage life of rubber sealing element in long-term storage product
  • Method for determining storage life of rubber sealing element in long-term storage product
  • Method for determining storage life of rubber sealing element in long-term storage product

Examples

Experimental program
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Effect test

experiment example 1

[0073] This experimental example 1 aims to verify the feasibility of the method for measuring the storage life of rubber seals inside long-term storage products provided by this application through real experiments; specifically:

[0074] S1), implement the temperature cycle impact accelerated life test, and collect the performance degradation data of each rubber seal under the accelerated stress level of each group of tests.

[0075] The test conditions are as follows:

[0076] Relative humidity: 90%rh;

[0077] High temperature holding time: 3h, adjust according to the product to ensure that the product is heated through,

[0078] Low temperature holding time: 1h, adjust according to the product to ensure that the product is completely cooled.

[0079] Temperature cycle accelerated life test profile such as image 3 As shown, the test is divided into 4 groups, and the test stress of each group is as follows in Table 1:

[0080] Table 1 Test stress of each test group

[...

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Abstract

The invention provides a method for determining the storage life of a rubber sealing element in a long-term storage product. According to the determination method, the storage life of the rubber sealing element is determined through an accelerated life test by taking temperature cycle impact as accelerated stress. According to the determination method, the service life of the rubber sealing element sealed in the long-term storage product such as ammunition along with the storage of the long-term storage product such as ammunition is effectively determined, the technical problems of assessability and evaluability in the storage process are solved, the reliability requirement can be met, and the test cost and the development cost can be reduced.

Description

technical field [0001] The invention belongs to the field of accelerated life tests of long-term storage products, and in particular relates to a method for determining the storage life of rubber seals by selecting a specific accelerated stress. It is mainly used in the determination of the storage life of rubber seals inside long-term storage products such as ammunition. Background technique [0002] Rubber seals are widely used in ammunition products because of their good sealing performance. However, due to the weakness of the rubber material in the analysis structure, during the process of processing, storage and use, the rubber seals will be aged due to the combined effects of internal and external factors, and eventually lose their sealing performance. Long-term storage products such as ammunition have the characteristics of long-term storage and one-time use. Compared with other components in long-term storage products such as ammunition, rubber seals used for long-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/60G01N3/32G06F30/20G06F119/04
CPCG01N3/60G01N3/32G01N2203/0005G01N2203/0224
Inventor 袁亦方沈晓军于宪峰徐超王军波
Owner 中国人民解放军63961部队
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