Novel rubber seal ring for explosion-proof motor and production technology for rubber seal ring for

A rubber sealing ring, explosion-proof motor technology, applied in the field of sealing rings, can solve the problems of poor ozone resistance and low temperature resistance, short service life of explosion-proof motors, poor oil resistance and adhesion, etc., to improve ozone resistance, The effect of improving the range of use and enhancing the wear resistance

Inactive Publication Date: 2015-05-06
南阳天一密封股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Neoprene itself has excellent oil resistance and wear resistance, but due to the poor ozone resistance and low temperature resistance of CR, especially when the rubber is under large stress, it will harden significantly due to crystallization at low temperatures and become It is unbearable to use, so the service life of the explosion-proof motor is short, and it is easy to cause discharge and cause accidents
EPDM rubber is a highly saturated rubber with good heat resistance, low temperature resistance, ozone resistance and electrical insulation performance, but its own oil resistance and adhesion are poor
The rubber composition used in this invention is prepared from 15 kinds of materials, which increases the cost of materials, and the increase in the types of materials makes the process more complicated in the production process and more difficult to control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The rubber sealing ring for novel explosion-proof motor of the present invention is made of the following raw materials in parts by mass: 48.75 parts of neoprene rubber, 16.25 parts of EPDM rubber, 2.5 parts of vulcanizing agent, 3 parts of vulcanization accelerator, 8 parts of cold-resistant softener, reinforcing 14 parts of additives, 5 parts of cold-resistant additives, and 2.5 parts of ozone-resistant additives. Wherein, in this embodiment, the vulcanizing agent is dicumyl peroxide, the vulcanization accelerator is triallyl isocyanurate, and the cold-resistant softener is stearic acid, dioctyl adipate and di-sebacate The mixture of octyl esters, the reinforcing agent is a mixture of N330 carbon black and S212 channel carbon black, the cold-resistant additive is PVC cold-resistant agent, and the ozone-resistant additive is anti-aging agent 4020.

[0038] Its production process comprises the following steps:

[0039] 1) Put chloroprene rubber, N330 carbon black and ste...

Embodiment 2

[0045] The rubber sealing ring for novel explosion-proof motor of the present invention is made of the following raw materials in parts by mass: 50.25 parts of neoprene rubber, 14.75 parts of EPDM rubber, 2 parts of vulcanizing agent, 3 parts of vulcanization accelerator, 7 parts of cold-resistant softener, reinforcing 15 parts of additives, 5 parts of cold-resistant additives, and 3 parts of ozone-resistant additives. Wherein, in this embodiment, the vulcanizing agent is dicumyl peroxide, the vulcanization accelerator is triallyl isocyanurate, the cold-resistant softener is stearic acid, the reinforcing agent is N330 carbon black, and the cold-resistant auxiliary agent It is a PVC cold-resistant agent, and the ozone-resistant additive is anti-aging agent 4020.

[0046] Its production process comprises the following steps:

[0047] 1) Put the neoprene rubber into the internal mixer for internal mixing to form a mixed rubber, let it stand for 12 hours, and set aside;

[0048]...

Embodiment 3

[0053] The rubber sealing ring for novel explosion-proof motor of the present invention is made of the following raw materials in parts by mass: 52.25 parts of neoprene rubber, 12.75 parts of EPDM rubber, 2.5 parts of vulcanizing agent, 2 parts of vulcanization accelerator, 8 parts of cold-resistant softener, reinforcing 15 parts of additives, 5 parts of cold-resistant additives, and 2.5 parts of ozone-resistant additives. Wherein, in the present embodiment, the vulcanizing agent is dicumyl peroxide, the vulcanization accelerator is triallyl isocyanurate, the cold-resistant softener is dioctyl sebacate, and the reinforcing agent is S212 generation channel carbon Black, the cold-resistant additive is PVC cold-resistant agent, and the ozone-resistant additive is anti-aging agent 4020.

[0054] Its production process comprises the following steps:

[0055] 1) Put the neoprene rubber into the internal mixer for internal mixing to form a mixed rubber, let it stand for 12 hours, an...

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Abstract

The invention discloses a novel rubber seal ring for an explosion-proof motor, and belongs to the technical field of sealing rings. The rubber seal ring is characterized by comprising the following raw materials in parts by weight: 45-55 parts of neoprene, 10-20 parts of EPDM rubber, 4-6 parts of sulfidation system, 5-10 parts of a coldproof soften flux, 12-18 parts of a reinforcing agent, 5-10 parts of a coldproof assistant, and 2-5 parts of an ozone proof assistant. The rubber seal ring has the advantages that the rubber seal ring is high in ozone resistance, good in low temperature resistant performance, and reliable in sealing; the abrasion resistant capability is reinforced greatly; the product quality is more stable; the service life is prolonged by 200% to rubber seal rings for explosion-proof motors in the prior art.

Description

technical field [0001] The invention belongs to the technical field of sealing rings, in particular to a novel rubber sealing ring for explosion-proof motors. Background technique [0002] The main rubber materials used in my country's explosion-proof motor rubber seals are chloroprene rubber (CR) and natural rubber (NR). Neoprene itself has excellent oil resistance and wear resistance, but due to the poor ozone resistance and low temperature resistance of CR, especially when the rubber is under large stress, it will harden significantly due to crystallization at low temperatures and become It is unbearable to use, so the service life is short in explosion-proof motors, and it is easy to cause discharge and cause accidents. EPDM rubber is a highly saturated rubber with good heat resistance, low temperature resistance, ozone resistance and electrical insulation properties, but its own oil resistance and adhesion are poor. If the two materials can be blended, the weak perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L23/16C08K13/02C08K5/14C08K5/09C08K5/3492C08K5/11C08K3/04C08K5/18C08J3/24B29C35/02
Inventor 杨明祖陈宇翔樊红星马文锋李玉文刘元英
Owner 南阳天一密封股份有限公司
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