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Automobile hub bearing sealing ring and preparation method thereof

A technology for bearing seals and automobile hubs, which is applied in the field of auto parts processing, can solve problems such as inability to withstand low temperature, seal rings cannot withstand temperature, and no manufacturing process, so as to ensure mold release performance, improve ozone resistance, and benefit rubber materials. stored effect

Inactive Publication Date: 2016-11-09
ANHUI YUETIAN SPECIAL AXLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the sealing ring disclosed in this patent has good wear resistance, oil resistance, small surface friction coefficient, and a long-lasting protective effect on the bearing, the sealing ring cannot withstand higher temperatures, nor can it withstand low temperatures. There is no manufacturing process, so it is necessary to design an automobile hub bearing sealing ring and its manufacturing process

Method used

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  • Automobile hub bearing sealing ring and preparation method thereof
  • Automobile hub bearing sealing ring and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for an automobile hub bearing sealing ring, comprising the following steps:

[0025] (1) Add 30 parts of hydrogenated nitrile rubber to the internal mixer, add 2 parts of anti-aging agent mercaptobenzimidazole, 3 parts of activator high-activity magnesium oxide, 4 parts of stearic acid, and 3 parts of imported lubricant microcrystalline wax , 0.2 parts of alumina powder, 0.3 parts of dibutyl phthalate, 3 parts of silicon dioxide, 3 parts of vulcanization accelerator di-tert-butyl peroxide, 3 parts of acid-base balance agent (PEG400), 25 parts of inorganic filler Carry out mixing for 3 minutes, add the remaining 50 parts of hydrogenated nitrile rubber, continue mixing for 15 minutes, add 15 parts of sulfur and mix for 2 minutes, then remove the glue, turn over the open mill, and then release and cool;

[0026] (2) calendering the cooled sizing material in step (1) through a calender, and forming it according to the specified weight;

[0027] (3) Pri...

Embodiment 2

[0032] A preparation method for an automobile hub bearing sealing ring, comprising the following steps:

[0033] (1) Add 25 parts of hydrogenated nitrile rubber to the internal mixer, add 3 parts of anti-aging agent mercaptobenzimidazole, 5 parts of activator high-activity magnesium oxide, 2 parts of stearic acid, and 1 part of imported microcrystalline wax as lubricant , 0.5 parts of alumina powder, 0.1 parts of dibutyl phthalate, 7 parts of silicon dioxide, 4 parts of vulcanization accelerator di-tert-butyl peroxide, 1 part of acid-base balance agent (PEG400), 30 parts of inorganic filler Carry out mixing for 5 minutes, add the remaining 50 parts of hydrogenated nitrile rubber, continue mixing for 10 minutes, add 10 parts of sulfur and mix for 2 minutes, then remove the glue, turn over the open mill, and then release and cool;

[0034] (2) calendering the cooled sizing material in step (1) through a calender, and forming it according to the specified weight;

[0035] (3) Pr...

Embodiment 3

[0040] A kind of preparation method, comprises the following steps:

[0041](1) Add 23 parts of hydrogenated nitrile rubber to the sealing ring of the automobile wheel hub bearing in the internal mixer, add 1 part of anti-aging agent mercaptobenzimidazole, 4 parts of activator highly active magnesium oxide, 3 parts of stearic acid, and imported lubricant 2 parts of microcrystalline wax, 0.1 part of alumina powder, 0.3 part of dibutyl phthalate, 5 parts of silicon dioxide, 4 parts of vulcanization accelerator di-tert-butyl peroxide, 1 part of acid-base balance agent (PEG400) 1. Mix 35 parts of inorganic fillers for 4 minutes, add the remaining 47 parts of hydrogenated nitrile rubber, continue mixing for 13 minutes, add 20 parts of sulfur and mix for 2 minutes, then remove the glue, turn over the open mill and then remove the sheet and cool;

[0042] (2) calendering the cooled sizing material in step (1) through a calender, and forming it according to the specified weight;

[0...

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Abstract

Relating to the field of processing of auto parts, the invention discloses an automobile hub bearing sealing ring and a preparation method thereof. The automobile hub bearing sealing ring comprises: hydrogenated nitrile butadiene rubber, sulfur, an anti-aging agent, an activating agent, stearic acid, a lubricant, alumina powder, dibutyl phthalate, silica, a vulcanization accelerator, an acid-base balance agent, inorganic filler and other components. The finished product is obtained by the steps of material mixing, calendaring molding, first vulcanization, punching and edge removing, second vulcanization, finishing and inspection. The raw material formula has reasonable design, and the prepared sealing ring has excellent oil resistance, heat resistance, cold resistance, corrosion resistance, tensile resistance, tear resistance and compressibility, and long service life.

Description

technical field [0001] The invention relates to the field of auto parts processing, in particular to an automotive hub bearing sealing ring and a preparation method thereof. Background technique [0002] Rubber is the latex taken from plants such as rubber trees and rubber grasses. After processing, it is a material with elasticity, insulation, and impermeability to water and air. High elastic polymer compound. Divided into two kinds of natural rubber and synthetic rubber. Natural rubber is processed by extracting gum from rubber trees, rubber grass and other plants; synthetic rubber is obtained by polymerization of various monomers. Rubber products have unique properties, so rubber is a good raw material for making sealing rings. Automobile hub bearing sealing ring is used on the hub bearing of the automobile, which plays the role of sealing and dustproof. [0003] After searching, for example, Chinese patent literature discloses a sealing ring for automobile bearings [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L15/00C08L71/00C08L91/00C08K13/02C08K5/378C08K3/22C08K5/09C08K5/12C08K3/36
CPCC08L15/005C08L2205/03
Inventor 周中秋李少芳
Owner ANHUI YUETIAN SPECIAL AXLE
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