CN2494453Y

CN2494453Y - Oilproof corrosion-resistant seal lining

Info

Publication number: CN2494453Y
Application number: CN 00245829
Authority: CN
Inventors: 董跃民; 陈宝泽
Original assignee: Taihang New & High Sealing Materials Co Ltd Laiyuan County
Current assignee: Taihang New & High Sealing Materials Co Ltd Laiyuan County
Priority date: 2000-08-14
Filing date: 2000-08-14
Publication date: 2002-06-05
Anticipated expiration: 2010-08-14

Abstract

The utility model discloses an oil resistant antiseptic sealed gasket plate, which comprises three layers of the upper layer, the middle layer and the low layer. The surface layer and the bottom layer are of surface layer material, the surface layer material comprises meerschaum hair, vermiculite powder, natural rubber, synthetic rubber mixture and chemical additive, the middle layer material comprises low chlorine asbestos hair, heavy calcium powder, natural rubber, synthetic rubber mixture and chemical additive, the surface layer material and the middle layer material use tension machine to press as integrity through a layer separation material feeding roller. The product has good sealing performance, has no erosion to metal, does not bond with the installed machine component, and is easy to be replaced and anti-aging, the using period is 3 times of normal asbestos rubber plate, and is 4 to 5 times of the coping plate.

Description

A kind of oil-resistant anticorrosion sealing pad

The present invention relates to a kind of oil-resistant anticorrosion sealing pad, belong to inorganic sealing material field.

In prior art, general sealed bolster plate main component is asbestos, and contains very high chlorion in the asbestos, strong to metal protection, especially be used in the sealing of automobile engine cylinder, along with the rising of engine operating temperature, pad clings cylinder body, causes the mechanical part heavy corrosion.It is main raw material that Chinese patent CN1059891A discloses with the sepiolite, adopts and copies the no asbestos seal gasket of following the example of manufacturing, follows the example of the processing technology that adopts the water treatment slip owing to copy, and its sheet material is oil resistant not; In the disclosed oil-resistant gasket seal of Chinese patent CN1138147A, be to be the no asbestos seal gasket of main raw material with the sepiolite, wherein add glass fibre, the employing roll-in method is made, this product is used in the sealing of the pipe interface of fuel oil, lubricating oil, steam, seawater, fresh water, potable water, air, flue gas and valve, performance increases, but to being mounted the bonding of parts, especially the primary gasket material of using on motor car engine cylinder and the chassis does not still solve the corrosion of metal problem to the following gasket seal of working of high temperature.At present, be mounted parts for solving the sticking cylinder of liner plate, to the corrosion of metal problem, relevant department once adopted the way that applies silicone oil, every motor will apply silicone oil 0.3-0.4kg, every kg18 unit, the primary coating silicone oil of 5-7 unit, domestic annual output internal-combustion engine comprises nearly 3,000,000 of agricultural locomotive, increase nearly 1,800 ten thousand yuan of cost, and because the silicone oil smell is big, harmful to the person, also influenced the installation time simultaneously.

The purpose of this invention is to provide a kind of good seal performance, to metal do not have burn into not be mounted that parts are bonding, oil resistant, high temperature high voltage resistant, acid resistant alkali, easily change ageing resistance, the oil-resistant anticorrosion sealing pad that life cycle is long.

For achieving the above object, oil resistant liner plate provided by the invention by sepiolite be major ingredient, add vermiculite power, through the low chlorine asbestos wool of washing, naturally form with synthetic rubber and chemical industry additive.

Above-mentioned oil-resistant anticorrosion sealing pad, its characteristics are that described lining plank is divided into three layers of upper, middle and lowers, surface layer and primer are made up of sepiolite cashmere, vermiculite power, natural rubber and synthetic rubber mixture and chemical industry additive, intermediate layer material is made up of low chlorine asbestos wool, dicalcium powder, natural rubber and synthetic rubber mixture and chemical industry additive, is that the top layer of major ingredient production expects to add pair roller Cheng Zhangji extrusion modlings by different level with the middle material that is major ingredient production with the sepiolite through the low chlorine asbestos of washing.

Above-mentioned liner plate, its characteristics are that described low chlorine asbestos wool is to wash the asbestos that the chloride ion content of handling is lower than 100ppm through distilled water.

Above-mentioned liner plate, its characteristics are that described chemical industry additive comprises Cosan, zine oxide, ancient Malong, paraffin, zine stearate, 3 ^#Vulcanzing agent, pigment, promoter and age resister, above-mentioned additive respectively accounts for the 0.2%-0.8% of the total amount that feeds intake.

Above-mentioned liner plate, its characteristics are that described synthetic rubber is by two or more is used with in nitrile butadiene rubber, styrene butadiene rubber, fluorine rubber and the silicone rubber.

Above-mentioned liner plate, its characteristics are that described age resister adopts the fourth age resister, and described promoter is adopted MM promoter and TM promoter.

Because having adopted not chloride sepiolite cashmere is major ingredient, adding rubber and chemical industry additive stirs, adding the solvent naphtha dilution again stirs, the surface coating material that is prepared into, having adjusted the past is the prescription of main raw material with common asbestos, add the natural minerals vermiculite again, make its lining plank work the time thicken rate be common asbestos packing sheet 2-3 doubly, density is dwindled and do not had leakage, and has corrosion-resistant, oil resistant, high temperature high voltage resistant, acid resistant alkali, and is safe and reliable, be not stained with material surface, anti-aging, easily change the characteristics that life cycle is long.After testing, life cycle is 3 times of common asbestos packing sheet, is 4-5 times of collecting plate.

Below in conjunction with accompanying drawing the utility model is elaborated

Fig. 1 is an oil-resistant anticorrosion sealing pad layering schematic representation

As shown in Figure 1: by sepiolite be major ingredient production top layer material, by the low chlorine asbestos of washing be major ingredient production in the middle of material feed intake through three times, after adding to become a machine respectively, the circulation roll-in forms upper epidermis 1, mesosphere 2, described oil-resistant anticorrosion sealing pad is finally made through High Temperature High Pressure, sulfuration again in following top layer 3.

Described liner sheet material material is made up of sepiolite, asbestos, vermiculite, natural rubber, synthetic rubber and chemical industry additive, and each is formed proportioning (percent by weight) and is: sepiolite 35%, low chlorine asbestos wool 25%, vermiculite power 10%, natural and synthetic rubber 25%, chemical industry additive 5%.

With the sepiolite is that major ingredient is produced the top layer 1 of liner plate and the raw material of bottom 3, mainly is made up of sepiolite 58%, vermiculite 7%, natural rubber 12%, synthetic rubber 8%, age resister 0.7%, promoter 0.5%, zine oxide 0.8%, ancient Malong 0.6%, Cosan 0.4%, paraffin 2% and pigment 10%.

With asbestos is the liner middle material of major ingredient, mainly is made up of low chlorine asbestos wool 58%, dicalcium powder 11%, natural rubber 15%, synthetic rubber 12%, age resister 1%, promoter 0.7%, oxygenant 0.8%, barium sulphate 0.5%, zine stearate 0.5% and Cosan 0.5%.

Claims

1. oil-resistant anticorrosion sealing pad, it is characterized in that: described liner plate is divided into three layers of upper, middle and lowers, surface layer and primer are made up of sepiolite cashmere, vermiculite power, natural rubber and synthetic rubber mixture and chemical industry additive, intermediate layer material is made up of low chlorine asbestos wool, dicalcium powder, natural rubber and synthetic rubber mixture and chemical industry additive, is that the top layer material of major ingredient is that the middle of major ingredient expects that adopting a machine to feed intake through layering is rolled into one with hanging down the chlorine asbestos wool with the sepiolite.

2. liner plate according to claim 1 is characterized in that: described low chlorine asbestos wool is the asbestos that chloride ion content is lower than 100ppm.

3. liner plate according to claim 1 is characterized in that: described synthetic rubber is at least two kinds in nitrile butadiene rubber, styrene butadiene rubber, fluorine rubber and the silicone rubber.

4. liner plate according to claim 1 is characterized in that: described chemical industry additive comprises Cosan, zine oxide, ancient Malong, paraffin, zine stearate, 3 ^#Vulcanzing agent, pigment, promoter and age resister.

5, liner plate according to claim 4 is characterized in that: described age resister adopts the fourth age resister, and described promoter is adopted MM promoter and TM promoter.