A rubber compression permanent set and tensile immersion test device and test method

The rubber compression set and tensile immersion test device, which combines a polytetrafluoroethylene liner and a stainless steel autoclave with a double-layer clamp design, solves the problems of applicability under harsh conditions and multi-sample testing, and achieves efficient and accurate rubber aging testing.

CN119595428BActive Publication Date: 2026-06-09CNNC FUJIAN FUQING NUCLEAR POWER
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Patent Information

Application Number
CN202411755653.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2026-06-09
Estimated Expiration
2044-12-03

AI Technical Summary

Technical Problem

Existing rubber compression set and tensile immersion testing equipment is not suitable for testing under harsh conditions and cannot test multiple samples simultaneously, resulting in high experimental costs and waste of chemicals.

Method used

The device features a polytetrafluoroethylene (PTFE) liner and a stainless steel body, combined with a double-layer circular compression clamp and a hollowed-out tension support to enable testing under high temperature and high pressure conditions. It also ensures test accuracy and solution contact through isolation pads and sealing rings, while reducing the amount of solution used.

Benefits of technology

Conducting long-term experiments in high-temperature and acidic/alkaline environments reduces chemical waste, improves experimental accuracy and efficiency, and lowers operational complexity.

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Abstract

The present application relates to the field of rubber material immersion test, in particular to a kind of rubber compression permanent deformation and tensile immersion test device and test method, the device includes reactor, and the inside of reactor is equipped with inner liner, and the inside of inner liner is equipped with compression sample device and tensile sample support;Compression sample device includes upper fixed plate, intermediate support plate, fixed bolt B, fixed nut B and limiting pad, and a plurality of corresponding dismounting holes are provided on the upper fixed plate and the intermediate support plate, and the upper fixed plate and the intermediate support plate are connected by fixed bolt B and fixed nut B arranged in the dismounting hole, limiting pad is arranged on fixed bolt B, and compression sample is arranged between the upper fixed plate and the intermediate support plate;Tensile sample support is used for carrying out sample tensile test.The present application is a kind of rubber compression permanent deformation and tensile immersion test device, the device of the present application is made of thickened polytetrafluoroethylene, and can resist high temperature up to 250 DEG C, while resisting acid and alkali corrosion, can resist high temperature and acid and alkali environment under high temperature, and the use range is wider.
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Citation Information

Patent Citations

  • Cross-shaped compression sample clamp for biaxial loading system and loading method of cross-shaped compression sample clamp

    CN113466028A

  • Test method for compression set of rubber in medium environment

    CN115266350A