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Oil-resistant nitrile butadiene rubber seal ring

A technology of nitrile rubber and sealing ring, applied in the field of sealing ring, can solve the problem that the oil-resistant nitrile rubber sealing ring does not meet the requirements of good use, and achieve the effects of not easy to swell, large surface polarity and high air tightness

Inactive Publication Date: 2014-06-18
ANHUI PROVINCE OUKAI SEALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The sealing ring is an annular cover composed of one or several parts, which is fixed on a ferrule or washer of the bearing and contacts with another ferrule or washer or forms a narrow labyrinth gap to prevent the leakage of lubricating oil and the intrusion of foreign objects; The performance of the sealing ring is related to the following points: such as tensile strength, wear resistance, stability, tear resistance, heat resistance, corrosion resistance, etc.; the above-mentioned properties of the oil-resistant nitrile rubber sealing ring in the prior art have not yet reached Very good use request, needs further improvement

Method used

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Embodiment Construction

[0009] The present invention is further described below:

[0010] The oil-resistant nitrile rubber sealing ring of the present invention is composed of the following raw material components and parts by weight: 100 parts of nitrile rubber; 15 parts of activator FT; 5 parts of activator zinc oxide; 3 parts of plasticizer dibutyl sebacate 3 parts of anti-aging agent octylated diphenylamine; 8 parts of reinforcing agent nano-calcium carbonate; 10 parts of plasticizer dioctyl phthalate; 2 parts of accelerator TMTD; 2 parts of accelerator CZ; 0.5 parts of sulfur.

[0011] By adding the above-mentioned other raw materials in proportion to the nitrile rubber, the sealing ring produced has a large surface polarity, good stability, not easy to swell, and good oil resistance, especially for fuel oil, hydraulic oil, engine oil, etc. at a temperature of 150 ° C. working medium.

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Abstract

The invention discloses an oil-resistant nitrile butadiene rubber seal ring. The seal ring consists of the following raw material components in parts by weight: 100 parts of nitrile butadiene rubber, 15 parts of activator FT, 5 parts of activator zinc oxide, 3 parts of plasticizer sebacic acid dibutyl phthalate, 3 parts of anti-aging agent octylated diphenylamine, 8 parts of reinforcing agent nano calcium carbonate, 10 parts of plasticizer dioctyl phthalate, 2 parts of accelerator TMTD, 2 parts of accelerator and 0.5 part of sulfur. The oil-resistant nitrile butadiene rubber seal ring has high surface polarity, good stability, low probability of swelling and good oil resistance and is particularly used for working mediums such as fuel, hydraulic oil and engine oil at 150 DEG C.

Description

technical field [0001] The invention relates to a sealing ring, in particular to an oil-resistant nitrile rubber sealing ring. Background technique [0002] The sealing ring is an annular cover composed of one or several parts, which is fixed on a ferrule or washer of the bearing and contacts with another ferrule or washer or forms a narrow labyrinth gap to prevent the leakage of lubricating oil and the intrusion of foreign objects; The performance of the sealing ring is related to the following points: such as tensile strength, wear resistance, stability, tear resistance, heat resistance, corrosion resistance, etc.; the above-mentioned properties of the oil-resistant nitrile rubber sealing ring in the prior art have not yet reached Good use request, needs further improvement. [0003] Nitrile rubber, also known as butadiene-acrylonitrile rubber, has an average molecular weight of about 700,000; off-white to light yellow block or powder solid, relative density 0.95-1.0; gla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08K13/02C08K3/22C08K5/11C08K5/18C08K3/26C08K5/12C08K3/06
Inventor 杨贵生
Owner ANHUI PROVINCE OUKAI SEALS
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