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Sealing ring and preparation method thereof

A technology of sealing rings and rubber strips, which is applied in the field of auto parts, can solve the problems of easy aging of sealing rings, achieve good phosphating treatment effects, enhance aging resistance, and prolong service life

Inactive Publication Date: 2017-09-26
浙江哈楠业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, compared with the seal ring applied to the brake master cylinder, the seal ring applied on the hub is prone to aging and needs to be improved

Method used

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  • Sealing ring and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A sealing ring, including a skeleton and a rubber strip, the rubber strip includes the following components in parts by weight:

[0048] 120 parts of EPDM rubber, 5 parts of N-phenyl-α-naphthylamine, 1 part of sulfur, 5 parts of N-cyclohexyl-2-benzothiazole sulfenamide, 2 parts of zinc stearate, white oil 5 parts, carbon black 25 parts, clay 15 parts.

[0049] A preparation method of a sealing ring, comprising the following preparation steps:

[0050] Step 1: According to parts by weight, weigh 120 parts of EPDM rubber, 5 parts of N-phenyl-α-naphthylamine, 1 part of sulfur, 5 parts of N-cyclohexyl-2-benzothiazole sulfenamide, Put 2 parts of zinc stearate, 5 parts of white oil, 25 parts of carbon black, and 15 parts of pottery clay into an internal mixer and knead at a temperature of 115°C to form a film;

[0051] Step 2: Put the film on the tape machine and cut out the tape;

[0052] Step 3: Put the skeleton in a sodium hydroxide solution with a mass fraction of 10% ...

Embodiment 2

[0059] A sealing ring, including a skeleton and a rubber strip, the rubber strip includes the following components in parts by weight:

[0060] 110 parts of EPDM rubber, 4 parts of N-phenyl-α-naphthylamine, 2 parts of sulfur, 4 parts of N-cyclohexyl-2-benzothiazole sulfenamide, 2 parts of zinc stearate, white oil 7 parts, 20 parts of carbon black, 17 parts of calcium carbonate.

[0061] A preparation method of a sealing ring, comprising the following preparation steps:

[0062] Step 1: In parts by weight, weigh 110 parts of EPDM rubber, 4 parts of N-phenyl-α-naphthylamine, 2 parts of sulfur, 4 parts of N-cyclohexyl-2-benzothiazole sulfenamide, Put 2 parts of zinc stearate, 7 parts of white oil, 20 parts of carbon black, and 17 parts of calcium carbonate into an internal mixer and knead at a temperature of 70°C to form a film;

[0063] Step 2: Put the film on the tape machine and cut out the tape;

[0064] Step 3: Put the skeleton in a sodium hydroxide solution with a mass fra...

Embodiment 3

[0071] A sealing ring, including a skeleton and a rubber strip, the rubber strip includes the following components in parts by weight:

[0072] 100 parts of EPDM rubber, 3 parts of N-phenyl-α-naphthylamine, 3 parts of sulfur, 2 parts of N-cyclohexyl-2-benzothiazole sulfenamide, 3 parts of zinc stearate, white oil 8 parts, carbon black 24 parts, clay 18 parts.

[0073] A preparation method of a sealing ring, comprising the following preparation steps:

[0074] Step 1: According to parts by weight, weigh 100 parts of EPDM rubber, 3 parts of N-phenyl-α-naphthylamine, 3 parts of sulfur, 2 parts of N-cyclohexyl-2-benzothiazole sulfenamide, Put 3 parts of zinc stearate, 8 parts of white oil, 24 parts of carbon black, and 18 parts of pottery clay into an internal mixer and knead at a temperature of 80°C to form a film;

[0075] Step 2: Put the film on the tape machine and cut out the tape;

[0076] Step 3: Put the skeleton in a sodium hydroxide solution with a mass fraction of 10%...

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Abstract

The invention discloses a sealing ring and a preparation method thereof. The sealing ring comprises a framework and a rubber strip, wherein the rubber strip is prepared from the following ingredients in parts by weight: 80 to 120 parts of ethylene propylene diene rubber, 1 to 5 parts of N-phenyl-alpha-naphthylamine, 1 to 3 parts of sulfur, 2 to 5 parts of N-cyclohexyl-2-benzothiazole sulfenamide, 1 to 3 parts of zinc stearate, 5 to 8 parts of softening agents, 20 to 25 parts of reinforcing agents and 15 to 20 parts of filling agents. The sealing ring has the beneficial effects that when the sealing ring is applied to a wheel hub, the sealing ring is in the air and sunlight contact state; the anti-aging performance is realized; the service life is long.

Description

technical field [0001] The invention relates to auto parts, in particular to a sealing ring and a preparation method thereof. Background technique [0002] The modern automobile industry puts forward higher and higher requirements for seals, and the sealing performance is an important index for evaluating the quality of automobiles. The seal ring seal is an important form of automobile static seal. [0003] The Chinese patent with the publication number CN101914245A discloses a material for a central valve sealing ring for a car brake master cylinder and a process for manufacturing the sealing ring. The sealing ring material has high strength, low compression deformation, tear resistance, brake fluid corrosion resistance, excellent high and low temperature resistance, no cracks during mold release, and stable performance. [0004] In the automotive industry, sealing rings are not only used in brake master cylinders, but also in wheel hubs. Among them, the brake master cyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08L91/06C08K13/02C08K5/18C08K5/47C08K5/098C08K3/04C23C22/05
CPCC08L23/16C08L2201/08C23C22/05C08L91/06C08K13/02C08K5/18C08K5/47C08K5/098C08K3/04
Inventor 谢国营
Owner 浙江哈楠业科技有限公司
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