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Rubber seal ring

A technology of rubber sealing rings and nitrile rubber, which is applied in the field of rubber sealing rings, can solve the problems of not having flame retardancy, acid and alkali corrosion resistance, and affecting the service life of sealing rings at the same time, so as to achieve good compressibility and resilience, and improve High temperature resistance and acid and alkali corrosion resistance, the effect of improving wear resistance and strength

Inactive Publication Date: 2016-07-06
TONGLING BAIRUI EQUIP PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the lubrication system of mechanical equipment contains acid and alkali components, it is easy to penetrate into the sealing ring, which affects the service life of the sealing ring, and the temperature of the mechanical equipment is high during operation, which often affects the service life of the sealing ring
Ordinary rubber sealing rings cannot have special properties such as flame retardancy and acid and alkali corrosion resistance at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A rubber sealing ring is made of the following raw materials in parts by weight:

[0015] 50 parts of nitrile rubber, 30 parts of styrene-butadiene rubber, 10 parts of epoxy butyl oleate, 3 parts of n-butyl methacrylate, 5 parts of zinc oxide, 4 parts of zinc stearate, 2 parts of coke powder, talcum powder 8 parts, 3 parts of bamboo charcoal fiber, 2 parts of hollow microspheres, 10 parts of chlorinated paraffin, 3 parts of aluminum hydroxide, 5 parts of paraffin oil, 1 part of accelerator CBS, 0.5 parts of vulcanizing agent, 1 part of anti-aging agent RD, titanate couple Joint agent TMC-TTS 1 part.

[0016] The fineness of the burnt gemstone powder is 150 mesh.

[0017] The performance index of the sealing ring in Example 1: baked at 500°C for 2 hours, the compressive strength is 200°C; the flexural strength is 55°C; the wear amount is 3 / cm 2 ; The breaking strength is greater than 10Mpa, and the breaking elongation is greater than 180%.

Embodiment 2

[0019] A rubber sealing ring is made of the following raw materials in parts by weight:

[0020] 60 parts of nitrile rubber, 25 parts of styrene-butadiene rubber, 10 parts of epoxy butyl oleate, 5 parts of n-butyl methacrylate, 6 parts of zinc oxide, 3 parts of zinc stearate, 2 parts of coke powder, talcum powder 6 parts, 4 parts of bamboo charcoal fiber, 2 parts of hollow microspheres, 11 parts of chlorinated paraffin, 4 parts of aluminum hydroxide, 6 parts of paraffin oil, 2 parts of accelerator CBS, 0.6 parts of vulcanizing agent, 2 parts of anti-aging agent RD, titanate couple Joint agent TMC-TTS 2 parts.

[0021] The fineness of the burnt gemstone powder is 150 mesh.

[0022] The performance index of the sealing ring in Example 2: at 500°C, baked for 2 hours, the compressive strength is 230°C; the flexural strength is 65°C; the wear amount is 1 / cm 2 ; The breaking strength is greater than 10Mpa, and the breaking elongation is greater than 200%.

Embodiment 3

[0024] A rubber sealing ring is made of the following raw materials in parts by weight:

[0025] 80 parts of nitrile rubber, 20 parts of styrene-butadiene rubber, 12 parts of epoxy butyl oleate, 5 parts of n-butyl methacrylate, 5 parts of zinc oxide, 4 parts of zinc stearate, 3 parts of coke powder, talcum powder 8 parts, 5 parts of bamboo charcoal fiber, 3 parts of hollow microspheres, 12 parts of chlorinated paraffin, 4 parts of aluminum hydroxide, 8 parts of paraffin oil, 3 parts of accelerator CBS, 0.8 parts of vulcanizing agent, 2 parts of antioxidant RD, titanate couple Joint agent TMC-TTS 2 parts.

[0026] The fineness of the burnt gemstone powder is 150 mesh.

[0027] Performance indicators of the sealing ring in Example 3: at 500°C, baked for 2 hours, the compressive strength is 180 degrees; the flexural strength is 50 degrees; the wear amount is 2 / cm 2 ; The breaking strength is greater than 10Mpa, and the breaking elongation is greater than 160%.

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Abstract

The invention discloses a rubber seal ring which is prepared from, by weight, 50-80 parts of butadiene-acrylonitrile rubber, 20-30 parts of butadiene styrene rubber, 10-12 parts of epoxy butyl oleate, 3-5 parts of n-butyl methacrylate, 5-8 parts of n-butyl methacrylate, 3-4 parts of zinc stearate, 2-3 parts of flint clay powder, 5-8 parts of talcum powder, 3-5 parts of bamboo charcoal fibers, 2-3 parts of hollow microbeads, 10-12 parts of chlorinated paraffin, 3-4 parts of aluminium hydroxide, 5-8 parts of paraffinic oil, 1-3 parts of accelerant CBS, 0.5-0.8 part of a vulcanizing agent, 1-2 parts of an anti-aging agent RD and 1-2 parts of a titanate coupling agent TMC-TTS. The rubber seal ring has excellent wear resistance and high temperature resistance and meanwhile has acid and alkaline corrosion resistance, stripping is easy to conduct, after curing is conducted, the rubber seal ring can be cleaned, disassembling, assembling and repairing are not affected, compressibility and rebound resilience are good, and the rubber seal ring is not softened, decomposed or subjected to brittle rupture at a high temperature, can work for a long time in an acid medium, an alkali medium and the like and is durable in use.

Description

technical field [0001] The invention relates to the technical field of seals, in particular to a rubber sealing ring. Background technique [0002] Rubber sealing ring is a kind of general basic component in sealing device, and it is a kind of rubber product widely used in sealing technology, often used in mechanical equipment. Because the lubrication system of mechanical equipment contains acid and alkali components, it is easy to penetrate into the sealing ring, which affects the service life of the sealing ring, and the temperature of the mechanical equipment is high during operation, which often affects the service life of the sealing ring. Ordinary rubber sealing rings cannot have special properties such as flame retardancy and acid and alkali corrosion resistance at the same time. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a rubber sealing ring with excellent wear resistance, h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L9/06C08L91/06C08L91/00C08K13/04C08K3/22C08K5/098C08K7/22C08K7/06
CPCC08L9/02C08L2201/08C08L2205/025C08L2205/035C08L9/06C08L91/06C08K13/04C08K2003/2296C08K5/098C08K7/22C08K2003/2227C08K7/06
Inventor 何颜鹏
Owner TONGLING BAIRUI EQUIP PARTS CO LTD
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