Shaft end O-shaped sealing ring with excellent bearing capability

A technology of rubber sealing ring and pressure bearing capacity, which is applied in the field of O-shaped rubber sealing ring at the shaft end, which can solve the problems of permanent compression deformation of the sealing ring, high pressure bearing capacity requirements, and easy stress relaxation of the sealing ring, so as to improve the compression resistance Permanent deformation, excellent heat air aging resistance, and good pressure bearing capacity

Inactive Publication Date: 2016-03-23
崇夕山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The engineering requires high sealing performance. If the sealing ring fails, it will cause problems such as air leakage and liquid leakage, which will directly affect the operation of the entire machine. For the sealing between rotating parts, the O-shaped rubber sealing ring is used because of its low cost and structure. The advantages of simplicity and easy installation have been widely used. Since the s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A shaft end O-shaped rubber sealing ring with excellent bearing capacity, the raw materials by weight include: 20 parts of tetrapropylene fluorine rubber, 35 parts of methyl vinyl silicone rubber, 15 parts of polyether polyurethane rubber, 40 parts of cis-butadiene rubber , 0.8 parts of dicumyl peroxide, 1.5 parts of 1,2-polybutadiene, 0.2 parts of zinc dimethacrylate, 70 parts of modified nano-montmorillonite, 15 parts of white carbon black, 10 parts of polytetrafluoroethylene fibers parts, carbon fiber 10 parts, nano-kaolin 20 parts, mica powder 2 parts, glass fiber 15 parts, bis(dioctyl pyrophosphate acyloxy) ethylene titanate 0.5 parts, triphenyl phosphate 1.5 parts, phthalate 0.5 part of dibutyl formate, 1.5 part of beeswax, 0.5 part of antioxidant.

Embodiment 2

[0017] A shaft end O-shaped rubber seal with excellent pressure bearing capacity, the raw materials by weight include: 40 parts of tetrapropylene fluorine rubber, 15 parts of methyl vinyl silicone rubber, 35 parts of polyether polyurethane rubber, and 20 parts of cis-butadiene rubber , 1.6 parts of dicumyl peroxide, 0.5 parts of 1,2-polybutadiene, 1.2 parts of zinc dimethacrylate, 55 parts of modified nano-montmorillonite, 20 parts of white carbon black, 1 teflon fiber parts, carbon fiber 20 parts, nano-kaolin 10 parts, mica powder 10 parts, glass fiber 5 parts, bis(dioctyl pyrophosphate acyloxy) ethylene titanate 1.8 parts, triphenyl phosphate 0.5 parts, phthalate 1.5 parts of dibutyl formate, 0.5 parts of beeswax, 1.5 parts of anti-aging agent.

Embodiment 3

[0019] A shaft end O-shaped rubber seal with excellent pressure bearing capacity, the raw materials by weight include: 30 parts of tetrapropylene fluorine rubber, 32 parts of methyl vinyl silicone rubber, 20 parts of polyether polyurethane rubber, and 36 parts of cis-butadiene rubber , 1 part of dicumyl peroxide, 1.2 parts of 1,2-polybutadiene, 0.85 parts of zinc dimethacrylate, 65 parts of modified nano-montmorillonite, 16 parts of white carbon black, 6 parts of polytetrafluoroethylene fibers parts, carbon fiber 12 parts, nano-kaolin 18 parts, mica powder 5 parts, glass fiber 12 parts, bis(dioctyl pyrophosphate acyloxy) ethylene titanate 1 part, triphenyl phosphate 1.2 parts, phthalate 0.6 part of dibutyl formate, 1.3 part of beeswax, 1 part of antioxidant.

[0020] The modified nano-montmorillonite is prepared by the following process: by weight, 80 parts of nano-montmorillonite, 2 parts of maleic anhydride, 2.5 parts of styrene, 0.2 parts of benzoyl peroxide, and 250 parts ...

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PUM

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Abstract

The invention discloses a shaft end O-shaped sealing ring with an excellent bearing capability. The raw materials of the sealing ring comprise, by weight, 20-40 parts of tetrafluoroethylene-propylene rubber, 15-35 parts of methyl vinyl silicone rubber, 15-35 parts of polyether polyurethane rubber, 20-40 parts of butadiene rubber, 0.8-1.6 parts of dicumyl peroxide, 0.5-1.5 parts of 1,2-polybutadiene, 0.2-1.2 parts of zinc dimethacrylate, 55-70 parts of modified nano montmorillonite, 15-20 parts of white carbon black, 1-10 parts of polytetrafluoroethylene fibers, 10-20 parts of carbon fibers, 10-20 parts of nano-kaolin, 2-10 parts of mica powder, 5-15 parts of glass fibers, 0.5-1.8 parts of di(dioctylpyrophosphato) ethylene titanate, 0.5-1.5 parts of triphenyl phosphate, 0.5-1.5 parts of dibutyl phthalate, 0.5-1.5 parts of beeswax and 0.5-1.5 parts of antioxidant.

Description

technical field [0001] The invention relates to the technical field of sealing rings, in particular to an O-shaped rubber sealing ring at a shaft end with excellent pressure bearing capacity. Background technique [0002] The engineering requires high sealing performance. If the sealing ring fails, it will cause problems such as air leakage and liquid leakage, which will directly affect the operation of the entire machine. For the sealing between the rotating parts, the O-shaped rubber sealing ring is due to its low cost and structure. The advantages of simplicity and easy installation have been widely used. Since the seal of the shaft end is a dynamic seal, the shaft sleeve rotates with the shaft, and there is friction between the seal ring and the seal ring. The stress relaxation of the seal ring is easy. will rise, the O-ring at the shaft end is prone to compression permanent deformation and hot air aging, and has higher requirements for pressure bearing capacity. SUMMA...

Claims

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Application Information

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IPC IPC(8): C08L9/00C08L27/18C08L83/07C08L75/08C08K13/06C08K9/04C08K3/34C08K3/36C08K7/06C08K7/14C08K5/14
CPCC08L9/00C08K2201/011C08K2201/014C08L27/18C08L2201/08C08L2205/025C08L2205/035C08L2205/16C08L2312/00C08L83/04C08L75/08C08K13/06C08K9/08C08K3/346C08K3/36C08K7/06C08K7/14C08K5/14
Inventor 不公告发明人
Owner 崇夕山
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