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Insulation pressure-resistant liner mouth sealing ring and preparation method thereof

A technology of insulation and pressure resistance and sealing ring, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., and can solve the problems of hardness, tensile strength, elongation at break, low heat aging resistance, low heat aging resistance and Compression resistance, intolerance to 50HZ and other issues, to achieve excellent aging resistance and anti-ozone performance, high resistance to compression set, reasonable ratio of raw materials

Inactive Publication Date: 2010-05-05
QINGDAO TKS SEALING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The materials used in the existing sealing rings of the gallbladder port have low heat aging resistance and pressure change resistance; the product cannot withstand 50HZ, a.c 2000V / mm, and breakdown will occur; at the same time, the hardness, tensile strength, and tear resistance of the material The performance of elongation, heat aging resistance, ozone resistance, tear resistance and general acid and alkali medium resistance is relatively low, and the service life of the product is short

Method used

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  • Insulation pressure-resistant liner mouth sealing ring and preparation method thereof

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Embodiment 1

[0034] An insulating and pressure-resistant gall opening sealing ring, comprising the following raw materials in parts by weight:

[0035] 80 parts of EPDM rubber, 1 part of antioxidant RD, 40 parts of carbon black,

[0036] 3 parts of 2,4-dichlorobenzoyl peroxide, 0.5 part of accelerator TMTD,

[0037] 6 parts of dioctyl phthalate, 1 part of dispersant WB212.

[0038] The present invention is a preparation method of an insulating and pressure-resistant bile mouth sealing ring, comprising the following steps:

[0039] Mix 80 parts of EPDM rubber, 1 part of antioxidant RD, 40 parts of carbon black, 3 parts of 2,4-dichlorobenzoyl peroxide, 0.5 parts of accelerator TMTD, 6 parts of phthalic acid with an internal mixer Dioctyl ester and 1 part of dispersant WB212 synthetic rubber, the synthetic rubber is shaped with an open mill, and then the shaped rubber is put into a mold in a vulcanizer for vulcanization, and the parameter condition is that the pressure is 1kgf / cm 2 , the t...

Embodiment 2

[0041] An insulating and pressure-resistant gall opening sealing ring, comprising the following raw materials in parts by weight:

[0042] 100 parts of EPDM rubber, 4 parts of antioxidant MB, 80 parts of carbon black,

[0043] 5 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane,

[0044] 2 parts of 2,2-dibenzothiazole disulfide,

[0045] 10 parts of bis(2-ethyl)hexyl sebacate,

[0046] 4 parts of dispersant W33.

[0047] The present invention is a preparation method of an insulating and pressure-resistant bile mouth sealing ring, comprising the following steps:

[0048] Mix 100 parts of EPDM rubber, 4 parts of antioxidant MB, 80 parts of carbon black, 5 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 2 parts of 2,2-dibenzothiazole disulfide, 10 parts of di(2-ethyl) hexyl sebacate and 4 parts of dispersant W33 synthetic rubber, and then the synthetic rubber was shaped with an open mill, and then The molded rubber is put into the mold in the vulcanizer for vulcaniz...

Embodiment 3

[0050] An insulating and pressure-resistant gall opening sealing ring, comprising the following raw materials in parts by weight:

[0051] 100 parts of EPDM, 2 parts of anti-aging agent IPPD, 60 parts of carbon black,

[0052] 4 parts of dicumyl peroxide, 1 part of zinc di-n-butyl dithiocarbamate,

[0053] 7 parts of dioctyl adipate, 2 parts of dispersant Aflux.

[0054] The present invention is a preparation method of an insulating and pressure-resistant bile mouth sealing ring, comprising the following steps:

[0055] Mix 100 parts of EPDM, 2 parts of anti-aging agent IPPD, 60 parts of carbon black, 4 parts of dicumyl peroxide, 1 part of zinc di-n-butyl dithiocarbamate, 7 parts of hexanediol using an internal mixer. Dioctyl acid and 2 parts of dispersant Aflux synthetic rubber, then the synthetic rubber is shaped with an open mill, and then the shaped rubber is put into the mold in the vulcanizer for vulcanization. The parameter conditions are: the pressure is 5kgf / cm 2 ,...

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Abstract

The invention discloses an insulation pressure-resistant liner mouth sealing ring which comprises the raw materials in parts by weight: 80-100 parts of ethylene-propylene-diene monomer rubber, 1-4 parts of anti-aging agent, 40-80 parts of carbon black, 3-5 parts of peroxide vulcanizing agent, 0.5-2 parts of accelerating agent, 6-10 parts of esters plasticizer and 1-4 parts of dispersing agent. The invention also discloses a preparation method of the insulation pressure-resistant liner mouth sealing ring. Compared with the prior art, the insulation pressure-resistant liner mouth sealing ring has attractive appearance, medium-high rigidity, high compression set resistance, high tensile strength and elongation at rupture, excellent ageing resistance and ozone resistance, more particularly, properties of insulation and voltage resistance, simple process and more reasonable proportion of the raw materials and enables the product to keep excellent properties and attractive appearance under more rigorous use environment.

Description

technical field [0001] The invention relates to a sealing ring and a preparation method thereof, in particular to an insulating and pressure-resistant bile mouth sealing ring and a preparation method thereof. Background technique [0002] The bile mouth sealing ring is a rubber sealing ring installed between the flange of the heating rod and the inner tank to prevent the leakage of water in the inner tank. The materials used in the existing gallbladder sealing ring have low heat aging resistance and compression resistance; the product cannot withstand 50HZ, a.c 2000V / mm, and breakdown will occur; at the same time, the hardness, tensile strength, tearing The performance of elongation, heat aging resistance, ozone resistance, tear resistance and general acid-base medium resistance is relatively low, and the service life of the product is short. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide an insulating and press...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10B29C43/02B29C43/58C08L23/16C08K13/02C08K3/04C08K5/14
Inventor 王军
Owner QINGDAO TKS SEALING IND
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