Sealing member having good oil resistance used for brake caliper

A technology of oil resistance and brake caliper, which is applied in the field of seals for brake caliper, to achieve the effect of improving braking safety, improving strength and good air tightness

Inactive Publication Date: 2017-11-24
宁国市宁和密封件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the brake caliper seal is working, it needs good oil resistance and good air tightness, so that it can effectively control the brake fluid from flowing out of the caliper body. Safety, while the existing seals for brake calipers are very effective for simultaneous modification of oil resistance and air tightness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A seal for a brake caliper with good oil resistance, made of the following components in parts by weight: nitrile rubber 50, EPDM rubber 20, dioctyl maleate 5, white carbon black 6, three Allyl isocyanurate 1, lignin phenolic resin 5, aluminum oxide coated carbon fiber 4, vulcanizing agent 1, anti-aging agent 1, plasticizer 1.

[0018] Further, the preparation method of the alumina-coated carbon fiber is:

[0019] Dissolve aluminum isopropoxide in isopropanol at a mass ratio of 1:10 to prepare solution a, mix water, isopropanol, and nitric acid at a mass ratio of 15:6:1 to prepare solution b, and prepare carbon fiber at a ratio of 10g:100mL Proportionally soaked in isopropanol, stirred evenly to obtain mixed solution c, uniformly mixed solution a, solution b and mixed solution c at a volume ratio of 1:1:0.5, heated to 80°C, kept warm for 2 hours, and then filtered , dried, baked at 350 ° C to constant weight, and then naturally cooled to room temperature.

[0020] Fur...

Embodiment 2

[0026] A seal for a brake caliper with good oil resistance, made of the following components in parts by weight: nitrile rubber 60, EPDM rubber 35, dioctyl maleate 8, white carbon black 10, three Allyl isocyanurate 3, lignin phenolic resin 8, aluminum oxide coated carbon fiber 6, vulcanizing agent 4, anti-aging agent 4, plasticizer 4.

[0027] Further, the preparation method of the alumina-coated carbon fiber is:

[0028] Dissolve aluminum isopropoxide in isopropanol at a mass ratio of 1:10 to prepare solution a, mix water, isopropanol, and nitric acid at a mass ratio of 15:6:1 to prepare solution b, and prepare carbon fiber at a ratio of 10g:100mL Proportionally soaked in isopropanol, stirred evenly to obtain mixed solution c, uniformly mixed solution a, solution b and mixed solution c at a volume ratio of 1:1:0.5, heated to 80°C, kept warm for 2 hours, and then filtered , dried, baked at 350 ° C to constant weight, and then naturally cooled to room temperature.

[0029] Fu...

Embodiment 3

[0035] A seal for a brake caliper with good oil resistance, made of the following components in parts by weight: nitrile rubber 55, EPDM rubber 25, dioctyl maleate 6, white carbon black 8, three Allyl isocyanurate 2, lignin phenolic resin 6, aluminum oxide coated carbon fiber 5, vulcanizing agent 2, anti-aging agent 2, plasticizer 2.

[0036] Further, the preparation method of the alumina-coated carbon fiber is:

[0037] Dissolve aluminum isopropoxide in isopropanol at a mass ratio of 1:10 to prepare solution a, mix water, isopropanol, and nitric acid at a mass ratio of 15:6:1 to prepare solution b, and prepare carbon fiber at a ratio of 10g:100mL Proportionally soaked in isopropanol, stirred evenly to obtain mixed solution c, uniformly mixed solution a, solution b and mixed solution c at a volume ratio of 1:1:0.5, heated to 80°C, kept warm for 2 hours, and then filtered , dried, baked at 350 ° C to constant weight, and then naturally cooled to room temperature.

[0038] Fur...

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PUM

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Abstract

The invention discloses a seal for a brake caliper with good oil resistance, relates to the technical field of sealing of an automobile brake caliper, and is made of the following components: nitrile rubber, EPDM rubber, dioctyl maleate, White carbon black, triallyl isocyanurate, lignin phenolic resin, aluminum oxide coated carbon fiber, vulcanizing agent, anti-aging agent, plasticizer; the seal for brake caliper prepared by the present invention has good oil resistance , heat resistance, good air tightness.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a sealing member for a brake caliper with good oil resistance. Background technique [0002] The brake caliper is the main part of the disc brake. In the braking state, the oil fluid creates a certain pressure through the oil pressure acting on the piston to push the friction plate to squeeze the brake disc, so as to achieve the purpose of braking. [0003] The seal for the brake caliper is located between the piston and the cylinder of the brake caliper, which acts as a seal to prevent the brake fluid from flowing out of the caliper and ensure that the brake caliper builds up pressure when the car brakes. [0004] When the brake caliper seal is working, it needs good oil resistance and good air tightness, so that it can effectively control the brake fluid from flowing out of the caliper body. Safety, while the existing seals for brake calipers are very effective for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L23/16C08K13/06C08K9/10C08K7/06C08K5/11C08K3/36
CPCC08L9/02C08L2201/08C08L2205/03
Inventor 张文尧
Owner 宁国市宁和密封件厂
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