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Novel sealing washer

A kind of sealing gasket, a new type of technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of backward gasket structure, discount of air tightness and safety performance, uneven cost performance of gaskets, etc., to achieve simple processing technology, The effect of low manufacturing cost and reasonable composition of ingredients

Inactive Publication Date: 2011-04-27
常熟市双华电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the differences in material selection, structure, preparation process and other links, the cost performance of gaskets is uneven, and the service life and durability often fail to meet the requirements. Some gaskets need to be replaced and tested frequently, which brings inconvenience to production.
Especially for some equipment with relatively large vibration, the loss of gaskets increases, and the airtightness and safety performance are greatly reduced.
It is difficult to use a single material to prepare gaskets to meet the requirements of use. Moreover, the backward structure of gaskets makes it difficult for gaskets to cope with complex and changeable conditions, which brings safety hazards to the use of electronic and electrical equipment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The specific implementation steps are as follows:

[0016] a) Material selection and preparation, the composition and percentage ratio of the body material of the new sealing gasket is 53% of neoprene (CR), 15% of nylon, 15% of clay powder, and 17% of mica feldspar particles, wherein mica The particle size of the feldspar particles is 10-20nm; the inner ring material is low-sulfur graphite rubber, wherein the graphite content is 6%, the rest is natural rubber, and the sulfur content is less than 0.022%.

[0017] b) Prepare the body, first, fully grind the clay powder and mica feldspar particles in the grinder for 20 minutes; then, add neoprene (CR) and nylon to the melting furnace for heating and melting, and the temperature is controlled at 250 ℃, smelting for 40 minutes; then, when the temperature reaches about 120 ℃, add the grinding mixture, and then add the catalyst and the structural inhibitor to mix and stir for 1 hour; finally, take it out of the furnace to cool...

Embodiment 2

[0022] The specific implementation steps are as follows:

[0023] a) material selection and preparation, the composition and percentage ratio of the body material of the new sealing gasket is 50% of neoprene (CR), 13% of nylon, 17% of clay powder, 20% of mica feldspar particles, wherein mica The particle size of feldspar particles is 10-20nm; the inner ring material is low-sulfur graphite rubber, wherein the graphite content is 8%, the rest is natural rubber, and the sulfur content is less than 0.022%.

[0024] b) Prepare the body, first, fully grind the clay powder and mica feldspar particles in the grinder for 30 minutes; then, add neoprene (CR) and nylon to the melting furnace for heating and melting, and the temperature is controlled at 260 ℃, smelting for 35 minutes; then, when the temperature reaches about 120 ℃, add the grinding mixture, and then add the catalyst and the structural inhibitor to mix and stir for 1.5 hours; finally, take it out of the furnace and cool; th...

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Abstract

The invention discloses a novel sealing washer, which comprises a body and an inner ring, wherein the body is made from chloroprene rubber (CR), nylon, clay powder and mica-feldspar particulates; the inner ring is made of low-sulfur graphite rubber; and the body is connected with the inner ring in a bonding way. The novel sealing washer disclosed by the invention has reasonable component preparation, simple and convenient processing technology and high high-temperature resistance, corrosion resistance, solvent resistance, aging resistance and radiation resistance; simultaneously, the washer has self-lubricating property, gas tightness, low manufacturing cost and long service life, can effectively prevent leakage of gas and liquid and can be widely applied to various types of electronic devices / pieces of equipment.

Description

technical field [0001] The invention relates to a gasket, in particular to a novel sealing gasket with unique structure and superior performance, which belongs to the technical field of electronic components. Background technique [0002] A gasket is a mechanical seal between two objects, usually to prevent leakage under pressure between the two objects. Since machined surfaces are never perfect, irregularities can be filled with gaskets. Gaskets are usually made of sheet materials such as paper pads, rubber, silicone rubber, metal, cork, felt, neoprene, nitrile rubber, fiberglass, or plastic polymers such as polyvinyl chloride. [0003] There are many kinds of gaskets on electronic equipment, which are shockproof, moistureproof, waterproof, breathable, ozone resistant, weather aging resistant, weak acid and weak alkali resistant, etc., and are widely used. However, due to the differences in material selection, structure, preparation process and other links, the cost perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10C08L11/00C08L77/00C08K3/34C08L7/00C08K3/04
CPCY02P20/141
Inventor 戴卫刚
Owner 常熟市双华电子有限公司
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