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Long-life sealing ring for large-sized hydraulic equipment

A hydraulic equipment and long-life technology, applied in the field of rubber materials, can solve the problems of technology being controlled by people, frequent failures, affecting quality and image, etc., and achieve the effect of wide range of high and low temperature, reliable sealing and strong applicability

Inactive Publication Date: 2018-07-03
ANHUI ZHONGDING SEALING PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, such parts in China are either imported, which increases the cost, and the key technology is controlled by others, or some low-end materials are used, resulting in low service life of hydraulic equipment, frequent failures, and affecting quality and image.
Especially in recent years, with the enhancement of environmental protection awareness, some non-environmental protection materials are gradually restricted in use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The present invention proposes a long-life sealing ring for large-scale hydraulic equipment, and its raw material components and mass ratios are as follows:

[0018] 100 parts of nitrile rubber, 100 parts of high wear-resistant furnace black, 5 parts of multi-walled carbon nanotubes, 1 part of insoluble sulfur, 1 part of tetrabenzylthiuram disulfide, N-cyclohexyl-2-benzothiazole 3 parts of sulfenamide, 5 parts of indirect method zinc oxide, 1 part of stearic acid, polymer of 2,2,4-trimethyl-1,2-dihydroquinoline, 1.5 parts, thiourea anti- 3 parts of ozone agent, 5 parts of trioctyl trimellitate, 2 parts of saturated isoparaffin, 3 parts of saturated fatty acid ester.

[0019] Preferably, among the above components, the acrylonitrile content in the nitrile rubber is 18%, and the Mooney viscosity is 40.

[0020] Preferably, among the above components, the multi-walled carbon nanotubes need to undergo surface modification. The specific surface modification steps are as fol...

Embodiment 2

[0026] The present invention proposes a long-life sealing ring for large-scale hydraulic equipment, and its raw material components and mass ratios are as follows:

[0027] 100 parts of nitrile rubber, 120 parts of high wear-resistant furnace black, 3 parts of multi-walled carbon nanotubes, 0.8 parts of insoluble sulfur, 2 parts of tetrabenzylthiuram disulfide, N-cyclohexyl-2-benzothiazole 2 parts of sulfenamide, 5 parts of indirect zinc oxide, 1 part of stearic acid, 2 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, thiourea antiozonant 2 parts, 10 parts of trioctyl trimellitate, 1 part of saturated isoparaffin, 2 parts of saturated fatty acid ester.

[0028] Preferably, among the above components, the acrylonitrile content in the nitrile rubber is 18%, and the Mooney viscosity is 40.

[0029] Preferably, among the above components, the multi-walled carbon nanotubes need to undergo surface modification. The specific surface modification steps are as follows: (1) Add t...

Embodiment 3

[0035] The present invention proposes a long-life sealing ring for large-scale hydraulic equipment, and its raw material components and mass ratios are as follows:

[0036] 120 parts of nitrile rubber, 120 parts of high wear-resistant furnace black, 4 parts of multi-walled carbon nanotubes, 0.6 parts of insoluble sulfur, 1 part of tetrabenzylthiuram disulfide, N-cyclohexyl-2-benzothiazole 3 parts of sulfenamide, 7 parts of indirect zinc oxide, 1.5 parts of stearic acid, 1.5 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, thiourea antiozonant 1.5 parts, 15 parts of trioctyl trimellitate, 2 parts of saturated isoparaffin, 1 part of saturated fatty acid ester.

[0037] Preferably, among the above components, the acrylonitrile content in the nitrile rubber is 18%, and the Mooney viscosity is 40.

[0038] Preferably, among the above components, the multi-walled carbon nanotubes need to undergo surface modification. The specific surface modification steps are as follows: (1) A...

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Abstract

The invention discloses a long-life sealing ring for large-sized hydraulic equipment. The long-life sealing ring is prepared from the following raw materials in parts by weight: 80-120 parts of nitrile rubber, 100-120 parts of high-wear resistance furnace black, 3-5 parts of a multiwalled carbon nanotube, 0.5-1 parts of insoluble sulfur, 1-3 parts of tetrabenzylthiuramdisulfide, 1-3 parts of N-cyclohexane-2-benzothiazolyl sulfonamide, 5-8 parts of indirect process zinc oxide, 1-2 parts of stearic acid 1-2, 1.5-3 parts of 2,2,4-trimethyl-1,2-dihydroquinoline polymer, 1.5-3 parts of a thiourea antiozonant, 5-15 parts of trioctyl trimellitate, 1-2 parts of saturated isoparaffin and 1.5-3 parts of saturated fatty acid ester. The long-life sealing ring has the characteristics of hydraulic oil resistance, high temperature resistance, low temperature resistance, high pressure resistance, wear resistance, ozone resistance and the like; compared with a common sealing ring, the long-life sealingring has the advantages of reliability in the sealing, wide high and low temperature ranges, strong applicability, long life, environmental friendliness and the like.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a long-life sealing ring for large hydraulic equipment. Background technique [0002] As a big manufacturing and industrial country, our country produces a large amount of industrial consumer goods every year. The equipment for manufacturing these industrial consumer goods has also gradually realized the transformation from import to localization. Among these production equipment, hydraulic equipment or components are a very important part. With the continuous improvement of my country's industrialization level, the requirements for these hydraulic equipment, especially large hydraulic equipment, are also increasing. As a key part of hydraulic equipment, sealing ring plays a very critical role in the realization and life of hydraulic functions. At present, such parts in China are either imported, which increases the cost, and the key technology is controlled by others...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L79/04C08K13/04C08K7/24C08K3/04C08K5/47C08K3/22
CPCC08L9/02C08K2003/2296C08K2201/011C08L2201/08C08L79/04C08K13/04C08K7/24C08K3/04C08K5/47C08K3/22
Inventor 毛学斌冯伟军章维国王骏国许业广高辉
Owner ANHUI ZHONGDING SEALING PARTS
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