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O-shaped seal ring for automobile fuel pump and manufacturing process of O-shaped seal ring

An O-ring, fuel pump technology, used in pumps, pump components, non-variable-capacity pumps, etc., can solve problems such as poor high and low temperature resistance, normal use of rubber seals, and no manufacturing process, and achieve high and low temperature resistance. Good performance, overcoming grease leakage, good protective effect

Inactive Publication Date: 2015-09-30
HAINING ZHONGTENG AUTOMOTIVE SEALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the rubber sealing ring disclosed in this patent can prevent its aging and corrosion and prolong its service life, the rubber sealing ring cannot be used normally in a low temperature or high temperature environment, has poor high and low temperature resistance, and has no manufacturing process. Therefore, it is necessary to design a kind of automobile fuel pump O-ring and its manufacturing process

Method used

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  • O-shaped seal ring for automobile fuel pump and manufacturing process of O-shaped seal ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, the O-ring of the automotive fuel pump includes a ring-shaped sealing ring body 1. The middle part of the sealing ring body 1 has a sealing lip 2, and the sealing lip 2 extends outward. This structure increases the storage capacity of the lip. The oil space overcomes the defects of grease leakage inside the bearing and external impurities entering the bearing, and has a good protective effect; the sealing ring body 1 and the sealing lip 2 are of an integrated structure, and the sealing ring body 1 includes nitrile rubber, sulfur, and anti-aging agent mercapto Benzimidazole, zinc oxide, stearic acid, paraffin oil, aluminum oxide powder, dibutyl phthalate, acid-base balance agent and vulcanization accelerator di-tert-butyl peroxide, each component is as follows by mass percentage: Nitrile rubber accounts for 70%-80%, sulfur accounts for 10%-20%, antioxidant mercaptobenzimidazole accounts for 1%-3%, zinc oxide accounts for 0.5%-0.8%, and stearic ...

Embodiment 2

[0036] Such as figure 1As shown, the O-ring of the automotive fuel pump includes a ring-shaped sealing ring body 1. The middle part of the sealing ring body 1 has a sealing lip 2, and the sealing lip 2 extends outward. This structure increases the storage capacity of the lip. The oil space overcomes the defects of grease leakage inside the bearing and external impurities entering the bearing, and has a good protective effect; the sealing ring body 1 and the sealing lip 2 are of an integrated structure, and the sealing ring body 1 includes nitrile rubber, sulfur, and anti-aging agent mercapto Benzimidazole, zinc oxide, stearic acid, paraffin oil, aluminum oxide powder, dibutyl phthalate, acid-base balance agent and vulcanization accelerator di-tert-butyl peroxide, each component is as follows by mass percentage: Nitrile rubber accounts for 70%-80%, sulfur accounts for 10%-20%, antioxidant mercaptobenzimidazole accounts for 1%-3%, zinc oxide accounts for 0.5%-0.8%, and stearic a...

Embodiment 3

[0039] Such as figure 1 As shown, the O-ring of the automotive fuel pump includes a ring-shaped sealing ring body 1. The middle part of the sealing ring body 1 has a sealing lip 2, and the sealing lip 2 extends outward. This structure increases the storage capacity of the lip. The oil space overcomes the defects of grease leakage inside the bearing and external impurities entering the bearing, and has a good protective effect; the sealing ring body 1 and the sealing lip 2 are of an integrated structure, and the sealing ring body 1 includes nitrile rubber, sulfur, and anti-aging agent mercapto Benzimidazole, zinc oxide, stearic acid, paraffin oil, aluminum oxide powder, dibutyl phthalate, acid-base balance agent and vulcanization accelerator di-tert-butyl peroxide, each component is as follows by mass percentage: Nitrile rubber accounts for 70%-80%, sulfur accounts for 10%-20%, antioxidant mercaptobenzimidazole accounts for 1%-3%, zinc oxide accounts for 0.5%-0.8%, and stearic ...

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Abstract

The invention provides an O-shaped seal ring for an automobile fuel pump and a manufacturing process thereof, and solves the technical problems that a conventional rubber seal ring cannot be normally used in low-temperature or high-temperature environments, is poor in high-low temperature resistance and has no manufacturing process. The O-shaped seal ring for the automobile fuel pump comprises a circular-ring-shaped seal ring body, wherein a sealing lip is arranged in the middle of the seal ring body and extends outwards; the seal ring body and the sealing lip adopt an integral structure; the seal ring body comprises butadiene-acrylonitrile rubber, sulfur, an antiager mercaptobenzimidazole, zinc oxide, stearic acid, paraffin oil, alumina powder, dibutyl phthalate, an acid-base balance agent, and a vulcanization accelerator di-t-butyl peroxide. The invention also provides a manufacturing process of the O-shaped seal ring. The O-shaped seal ring has the advantages of good high-low temperature resistance and high yield.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and relates to an O-shaped sealing ring of an automobile fuel pump and a manufacturing process thereof. Background technique [0002] O-rings are mainly used for static sealing and reciprocating motion sealing. O-rings are commonly used sealing elements in automobiles, and the seals commonly used in automobile fuel pumps are also O-rings. O-rings have good sealing performance and are used in a wide range, so they are used more and more in the design of automobiles. The choice of sealing ring material is of great significance to its sealing performance and service life, and the performance of the material directly affects the performance of the sealing ring. The material of the O-ring in the prior art is usually nitrile rubber, but the nitrile rubber has the defects of poor high temperature resistance and easy aging, which seriously affects the service life of the O-ring. [0003] After searc...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/02C08K5/37C08K3/22C08K5/09C08K5/12C08K5/14B29C35/02F04D29/12
CPCC08L9/02B29C35/02C08L2201/08F04D29/126
Inventor 石伟宇
Owner HAINING ZHONGTENG AUTOMOTIVE SEALS
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