Pressure-resistant rubber seal ring for pipeline

Abstract

The invention relates to a pressure-resistant rubber seal for a pipeline. The raw material formula comprises the following components: ethylene-propylene-diene monomer rubber, natural rubber, paraffin oil, aluminum oxide, stearic acid, an anti-aging agent AW, lignin, titanium dioxide, a quinone-oxime compound, lead dioxide and a lubricant. The seal ring provided by the invention has high resistance to compression deformation and can be used for sealing sockets of underground oil and gas conveying pipelines.

Description

technical field [0001] The invention relates to a rubber sealing ring, in particular to a pressure-resistant rubber sealing ring for pipelines. Background technique [0002] Existing rubber sealing rings for pipelines are easily compressed and deformed under high pressure for a long time, resulting in leakage of liquid or gas in the pipeline, which not only causes waste of resources, but also easily causes environmental pollution. Contents of the invention [0003] The object of the present invention is to provide a corrosion-resistant rubber sealing ring for the deficiencies of the prior art. [0004] The technical scheme adopted in the present invention is as follows: a pressure-resistant rubber sealing ring for pipelines, made of the following raw materials in parts by weight: 80 parts of EPDM rubber, 20 parts of natural rubber, 6 parts of paraffin oil, 1.5 parts of aluminum oxide 6 parts, 6 parts of stearic acid, 1.5 parts of anti-aging agent AW, 120 parts of lignin, ...

AI Technical Summary

Problems solved by technology

[0002] Existing rubber sealing rings for pipelines are easily compressed and deformed under long-term high pressure, resulting in leakage of liquid or gas in the pipeline, which not only causes waste of resources, but also easily causes environmental pollution