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Self-lubricating high-wear resistance oil seal and production method thereof

A high wear-resistant and self-lubricating technology, applied in the field of rubber, can solve the problems of poor wear resistance of oil seals, troublesome replacement, engine overhaul, etc., and achieve the effects of small friction coefficient, improved oil resistance and long service life

Inactive Publication Date: 2011-05-18
SHANGHAI ZHONGLI AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, the car engine is like the heart of the human body, which is the source of power. The transmission shaft oil seal, half-shaft oil seal, and crankshaft rear oil seal are a very small part of the engine, but they are essential. The wear resistance of the oil seal is poor. The oil seal will leak when tens of thousands of kilometers. It is a small part, but it is troublesome to replace. During use, some car owners do not care about these small things and do not replace them in time. It is easy to cause the engine to lack oil and make it lubricated Insufficient supply of engine oil in some parts causes pulling, even pulling cylinders, leading to engine overhaul

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A self-lubricating high wear-resistant oil seal rubber composition, made of the following raw materials in parts by weight: 80 parts of fluororubber (AH130 produced by Shanghai Dongfluor Chemical Industry Co., Ltd.), 20 parts of polytetrafluoroethylene, N-isopropyl- 2 parts of N'-phenyl-p-phenylenediamine (antiaging agent 4010NA), 2 parts of 2,2,4-trimethyl-1,2-dichloroquinoline polymer (antiaging agent RD), semi-refined 46# 3 parts of wax, 6 parts of paraffin oil, 40 parts of N-234, 5 parts of erucamide, 3 parts of WB212, 2 parts of sulfur, 6 parts of active zinc oxide, 1 part of stearic acid, N-tert-butyl-2-benzene Thiazole sulfenamide (accelerator NS) 1.6 parts; dibutyl zinc dithiocarbamate (accelerator BZ) 0.4 parts.

[0025] Put the fluororubber and polytetrafluoroethylene into the internal mixer for internal mixing at a temperature of 100°C for 1 minute; then add p-phenylenediamine antioxidants, dihydroquinoline antioxidants, physical antioxidants, active agents, ...

Embodiment 2

[0027] A self-lubricating and highly wear-resistant oil seal rubber composition, made of the following raw materials in parts by weight: 75 parts of fluororubber (AH130 produced by Shanghai Dongfluor Chemical Industry Co., Ltd.), 25 parts of polytetrafluoroethylene, N-(1,3 -Dimethylbutyl)-N'-phenyl-p-phenylenediamine (antiaging agent 4020) 2 parts, 2,2,4-trimethyl-1,2-dichloroquinoline polymer (antiaging agent RD ) 1.8 parts, semi-refined 46﹟ wax 4 parts, paraffin oil 5 parts, N-234 38 parts, erucamide 6 parts, WB212 2.5 parts, sulfur 2.5 parts, zinc stearate 5 parts, stearic acid 1.5 parts, N-tert-butyl-2-benzothiazole sulfenamide (accelerator NS) 1.5 parts; dibutyl zinc dithiocarbamate (accelerator BZ) 0.5 parts.

[0028] Put the fluorine rubber and polytetrafluoroethylene into the internal mixer for internal mixing at a temperature of 120°C for 1 minute; then add p-phenylenediamine antioxidants, dihydroquinoline antioxidants, physical antioxidants, active agents, Put slipp...

Embodiment 3

[0030] A self-lubricating and highly wear-resistant oil seal rubber composition, made of the following raw materials in parts by weight: 65 parts of fluororubber (AH130 produced by Shanghai Dongfluor Chemical Industry Co., Ltd.), 35 parts of polytetrafluoroethylene, N-isopropyl- 2.5 parts of N'-phenyl-p-phenylenediamine (antiaging agent 4010NA), 2.5 parts of 2,2,4-trimethyl-1,2-dichloroquinoline polymer (antiaging agent RD), semi-refined 46﹟ 4 parts of wax, 4 parts of paraffin oil, 44 parts of N-234, 6 parts of erucamide, 2 parts of WB212, 2 parts of sulfur, 7 parts of zinc oxide, 1.5 parts of stearic acid, 1 part of accelerator CZ, 0.3 parts of accelerator DM share.

[0031] Put the fluorine rubber and polytetrafluoroethylene into the internal mixer for internal mixing, the temperature is 110 ° C, and the time is 1 min; then p-phenylenediamine antioxidant, dihydroquinoline antioxidant, physical antioxidant, active agent, Put the slip agent, dispersant and stearic acid in...

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Abstract

The invention provides a self-lubricating high-wear resistance oil seal and a production method thereof. The self-lubricating high-wear resistance oil seal is characterized by being prepared from 60-80 parts by weight of fluorous rubber, 20-40 parts by weight of polytetrafluoroethylene, 1.5-2.5 parts by weight of p-phenylenediamine aging resister, 1.5-2.5 parts by weight of dihyaroquinoline aging resister, 3-6 parts by weight of physical aging resister, 5-10 parts by weight of plasticizing agent, 35-48 parts by weight of strengthening agent, 2-6 parts by weight of slipping agent, 2-4 parts of dispersion agent, 1.5-2.5 parts by weight of vulcanizing agent, 5-8 parts by weight of activating agent, 1-2 parts by weight of stearic acid and 1.6-2.0 parts by weight of accelerating agent. The self-lubricating high-wear resistance oil seal obtained by the invention can be adapted to the high speed of an engine and a crankshaft, has the advantages of high wear resistance, small friction coefficient, high-low temperature resistance, weather resistance, favorable heat resistance and long service life and ensures that the oil seal does not leak oil when an automobile is driven for at least 0.3 million kilometer.

Description

technical field [0001] The invention relates to a self-lubricating high wear-resistant oil seal and a production method thereof, which are used in automobile engines and belong to the technical field of rubber. Background technique [0002] As we all know, the car engine is like the heart of the human body, which is the source of power. The transmission shaft oil seal, half-shaft oil seal, and crankshaft rear oil seal are a very small part of the engine, but they are essential. The wear resistance of the oil seal is poor. The oil seal will leak when tens of thousands of kilometers. It is a small part, but it is troublesome to replace. During use, some car owners do not care about these small things and do not replace them in time. It is easy to cause the engine to lack oil and make it lubricated Insufficient supply of engine oil in some parts causes pulling, even pulling cylinders, leading to engine overhaul. Contents of the invention [0003] The object of the present i...

Claims

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Application Information

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IPC IPC(8): C08L27/12C08L27/18C08K13/02C08K5/18C08K5/09C08K5/20F16J15/16B29C43/58B29B7/72B29L31/26
Inventor 陈清明
Owner SHANGHAI ZHONGLI AUTO PARTS
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