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Special sealing plate material for automobile engine and gearbox

A technology for automobile engines and gearboxes, which is applied to the sealing of engines, engine components, and mechanical equipment, etc. Creep property, effect of improving aging resistance

Inactive Publication Date: 2010-04-21
南阳天一密封股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional sealing products for automotive engines and gearboxes have poor resistance to deterioration, poor anti-aging, poor flexibility, and low compactness, resulting in poor sealing of the products and easy fracturing during installation. Most materials contain asbestos components, which are harmful to the human body. cause harm, pollute the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The special sealing plate for automobile engine and gearbox is prepared by mixing raw materials according to the following weight percentage: 5% aramid pulp, 20% plant fiber, 26% mineral fiber, 5% nylon fiber, 21% silicate filler, 8% nitrile rubber, 10% natural rubber, 2.5% coupling agent, 2.5% vulcanizing agent. It is made by one-time sizing and multi-roller continuous calendering and vulcanization.

Embodiment 2

[0016] The special sealing plate for automobile engine and gearbox is prepared by mixing raw materials according to the following weight percentage: 7% aramid pulp, 22% plant fiber, 25% mineral fiber, 7% nylon fiber, 15% silicate filler, Butadiene rubber 9%, natural rubber 12%, coupling agent 1.5%, accelerator 1.5%. It is made by one-time sizing and multi-roller continuous calendering and vulcanization.

Embodiment 3

[0018] The special sealing plate for automobile engine and gearbox is prepared by mixing raw materials according to the following weight percentage: 8% aramid pulp, 25% plant fiber, 23% mineral fiber, 6% nylon fiber, 15% silicate filler, butyl Eye glue 10%, natural rubber 11%, coupling agent 1.5%, activator 0.5%. It is made by one-time sizing and multi-roller continuous calendering and vulcanization.

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PUM

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Abstract

The invention discloses a special sealing plate material for an automobile engine and a gearbox, comprising the following raw materials by weight percent: 5-8% of aramid pulp, 20-25% of plant fiber, 23-28% of mineral fiber, 5-10% of nylon fiber, 15-35% of silicate filler, 8-12% of butadiene-acrylonitrile rubber, 10-15% of natural rubber, 1-3% of coupling agent and 0.5-2.5% of vulcanizing system. Compared with the prior art, the invention improves the creep resistance of sealing products, reduces the stress relaxation rate, improves ageing-resistant performance and compactness, changes the proportion of horizontal and longitudinal arrangements of the fiber, and reduces the difference of the longitudinal direction and the horizontal direction so as to improve the tightness.

Description

technical field [0001] The invention belongs to the technical field of sealing materials, and in particular relates to a special sealing plate used for automobile engines and gearboxes. Background technique [0002] Traditional sealing products for automotive engines and gearboxes have poor resistance to deterioration, poor anti-aging, poor flexibility, and low compactness, resulting in poor sealing of the products and easy fracturing during installation. Most materials contain asbestos components, which are harmful to the human body. cause harm and pollute the environment. Contents of the invention [0003] In order to solve the above-mentioned defects in the prior art, the object of the present invention is to provide a sealing product that can improve creep resistance, reduce stress relaxation rate, improve aging resistance and sealing performance, thereby improving sealing performance. [0004] In order to achieve the above object, the technical solution adopted by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10
Inventor 杨明祖陈宇翔朱建国
Owner 南阳天一密封股份有限公司
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