High-pressure-resistant sealing material

A sealing material, high-pressure technology, applied in the field of materials, can solve the problems of malignant accidents, large load of sealing rings, poor quality of sealing parts, etc., and achieve the effect of low friction coefficient and strong anti-wear ability.

Inactive Publication Date: 2015-07-29
LIUZHOU LINGTONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the quality of the seal is poor, it will cause loss and trouble if it is light, and it will cause serious accidents if it is serious
Especially in an environment with high working pressure, the seal ring bears a large load, and the seals are often damaged during the operation of the equipment. Some seals can only be used for 1-2 months, or even a shorter time , it needs to be replaced, which brings troubles to the continuous production of the enterprise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The formula of high pressure resistant sealing material of the present invention is as follows:

[0012] Natural rubber 55kg, hydrogenated nitrile rubber 18kg, stearic acid 4kg, allyl alcohol 1.5kg, methyl hydrogen silicone oil 1.5kg, oleyl alcohol 0.6kg, diacetyl peroxide 5kg, aluminum oxide 4kg, calcium carbonate 1.4kg, dry Natural oil alkyd resin 0.8kg, white carbon black 7kg, antioxidant 1.2kg, sulfur 2.5kg.

[0013] The preparation method of high pressure resistant sealing material of the present invention is as follows:

[0014] First add natural rubber, hydrogenated nitrile rubber, stearic acid, allyl alcohol, and diacetyl peroxide into the mixer, mix at 135°C for 6 minutes, then add the rest of the ingredients in the formula, and mix Refining and pressing molding; adding the molded rubber material into the mold of the vulcanization equipment, and vulcanizing treatment, the temperature is 172 ° C, the vulcanization time is 30 minutes, and the vulcanization press...

Embodiment 2

[0016] The formula of high pressure resistant sealing material of the present invention is as follows:

[0017] Natural rubber 50kg, hydrogenated nitrile rubber 15kg, stearic acid 5kg, allyl alcohol 1kg, methyl hydrogen silicone oil 1kg, oleyl alcohol 0.8kg, diacetyl peroxide 4kg, aluminum oxide 3kg, calcium carbonate 1.2kg, drying oil Alkyd resin 0.6kg, white carbon black 8kg, antioxidant 2kg, sulfur 2kg.

[0018] The preparation method of high pressure resistant sealing material of the present invention is as follows:

[0019] First add the natural rubber, hydrogenated nitrile rubber, stearic acid, allyl alcohol and diacetyl peroxide into the mixer, and knead at 140°C for 5 minutes, then add the rest of the ingredients in the formula, and mix Refining and pressing molding; adding the molded rubber material into the mold of the vulcanization equipment, and vulcanizing treatment, the temperature is 175 ° C, the vulcanization time is 25 minutes, and the vulcanization pressure ...

Embodiment 3

[0021] The formula of high pressure resistant sealing material of the present invention is as follows:

[0022] Natural rubber 60kg, hydrogenated nitrile rubber 20kg, stearic acid 3kg, allyl alcohol 2kg, methyl hydrogen silicone oil 2kg, oleyl alcohol 0.5kg, diacetyl peroxide 6kg, aluminum oxide 5kg, calcium carbonate 1.6kg, drying oil Alkyd resin 0.9kg, white carbon black 6kg, antioxidant 0.5kg, sulfur 3kg.

[0023] The preparation method of high pressure resistant sealing material of the present invention is as follows:

[0024] First add natural rubber, hydrogenated nitrile rubber, stearic acid, allyl alcohol, and diacetyl peroxide into the mixer, mix at 130°C for 8 minutes, then add the rest of the ingredients in the formula, and mix Refining and pressing molding; adding the molded rubber material into the mold of the vulcanization equipment, and vulcanizing treatment, the temperature is 170°C, the vulcanization time is 35 minutes, and the vulcanization pressure is 10Mpa;...

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Abstract

The invention provides a high-pressure-resistant sealing material which consists of the following components in parts by mass: 50-60 parts of natural rubber, 15-20 parts of hydrogenated butadiene-acrylonitrile rubber, 3-5 parts of stearic acid, 1-2 parts of allyl alcohol, 1-2 parts of methyl hydrogen silicone oil, 0.5-0.8 part of oleyl alcohol, 4-6 parts of diacetyl peroxide, 3-5 parts of aluminum oxide, 1.2-1.6 parts of calcium carbonate, 0.6-0.9 part of dry oleyl alcohol acid resin, 6-8 parts of white carbon black, 0.5-2 parts of an anti-aging agent and 2-3 parts of sulfur. The high-pressure-resistant sealing material can bear the pressure of 410MPa, and the friction coefficient is low (0.20-0.22); the abrasion resistance is high.

Description

Technical field [0001] The invention is a material technology field, which involves a high -voltage sealing material. Background technique [0002] Sealing products are important basic components of various machinery, and almost all industrial departments cannot be separated from it.How the quality of the sealing element is directly related to the service life and operation reliability of the machine.If the quality of the seal is poor, it will bring losses and troubles, and the severe accident will cause malignant accidents.Especially in an environment with high work pressure, the load that the sealing ring has suffered is large. During the operation of the device, it is often damaged by sealing parts., Need to be replaced, the troubles brought to the continuous production of the enterprise.Therefore, at present, a sealing material that can be used in high -pressure environments is urgently needed. Invention content [0003] The invention provides a high -voltage sealing materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L15/00C08L83/05C08L67/08C08K13/02C08K5/14C08K3/22C08K3/26C08K3/36C08K3/06B29C35/02
CPCC08L7/00B29C35/02C08L2205/035C08L2312/00C08L15/005C08L83/04C08L67/08C08K13/02C08K5/14C08K2003/2227C08K2003/265C08K3/36C08K3/06
Inventor 张文玲
Owner LIUZHOU LINGTONG TECH CO LTD
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