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Semi-quantitative assessment test and data processing method for storage life in condition with single temperature

A technology of temperature conditions and storage life, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of multiple test samples and test facilities, large manpower, long test cycle, etc., to achieve fast and efficient storage life evaluation test, data volume Small, short cycle effects

Inactive Publication Date: 2016-06-15
NO 59 RES INST OF CHINA ORDNANCE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing method, there are no less than four test temperature conditions. During the test, more test samples and test facilities will be required, and the test cycle will be longer, consuming a lot of manpower and material resources.

Method used

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  • Semi-quantitative assessment test and data processing method for storage life in condition with single temperature
  • Semi-quantitative assessment test and data processing method for storage life in condition with single temperature
  • Semi-quantitative assessment test and data processing method for storage life in condition with single temperature

Examples

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Embodiment 1

[0018] Example 1: Evaluation objects natural rubber 1157 and natural rubber 1161 have known storage life evaluation results (under a certain failure critical condition, the storage life evaluation results in τ years), the two are relatively similar in molecular structure, physical and chemical properties, etc., choose Natural rubber 1161 is used as a reference object for evaluating the storage life of natural rubber 1157 . The temperature conditions of natural rubber 1161 were selected for natural rubber 1157 to carry out thermal aging tests, and the degradation data of the aging characteristic index (compression set rate ε) of the evaluation object in different thermal aging test cycles were obtained, and fitted according to formula (1). The results are shown in Table 1.

[0019]

[0020] By linearizing the performance-time test data of the two rubbers at the same temperature, it can be concluded that the property change rate constant of natural rubber 1157 at this aging te...

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Abstract

The invention discloses a semi-quantitative assessment test and data processing method for storage life in a condition with single temperature. As known in a storage life assessment test result of a material which is similar to an object to be assessed, an aging characteristic index of the object to be assessed is identical to the index of the reference object; test condition, data processing parameters and assessment results of the reference object are used as references of the object to be assessed; a second high test temperature condition of the reference object is used as the temperature condition of the object to be assessed for developing a heating aging test; data processing is carried out referring to data process parameter of the reference object, reaction rate constants of the object to be assessed and the reference object at the same temperature condition are compared, and whether the storage life of the object to be assessed is longer, shorter or similar to the storage life of the reference object is given by a semi-quantitative assessment. The experiment data size is small, the period is short, and the storage life assessment test can be rapidly and efficiently developed.

Description

technical field [0001] The invention relates to a storage life evaluation test method under a single temperature condition, in particular to a storage life evaluation test and data processing method that uses existing relevant heat aging test data to quickly and efficiently carry out the storage life evaluation test. Background technique [0002] Non-metallic materials are widely used in various military and civilian products. In product design, they have functional requirements such as sealing, vibration reduction, bonding, lubrication, and anti-corrosion. At the same time, various materials of products are subjected to heat, oxygen, stress, etc. during storage. Due to the combined effect of factors, non-metallic materials are the earliest materials that are most prone to aging and failure problems, and the weak link of non-metallic materials is the "short board" that affects the storage life of products. , maintenance and life extension are of great significance. [0003]...

Claims

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Application Information

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IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 何建新谭勇周堃王玲钟勇
Owner NO 59 RES INST OF CHINA ORDNANCE IND
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