A kind of preparation method of anti-attenuation gasket

An anti-attenuation and gasket technology, which is applied in the field of anti-attenuation gasket preparation, can solve the problems of general sealing performance improvement of composite boards, etc., and achieve the effects of outstanding creep relaxation resistance, good resilience, and good flexibility
CN109703035BActive Publication Date: 2021-06-15南阳天一密封股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南阳天一密封股份有限公司
Publication Date
2021-06-15

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Abstract

The invention provides a method for preparing an anti-attenuation gasket, which belongs to the technical field of sealing material preparation. A method for preparing an anti-attenuation gasket, the anti-attenuation gasket includes a spring steel strip and a foamed rubber layer, and the foamed rubber layer is arranged on one or both sides of the spring steel strip, it is characterized in that it includes the following Steps: surface treatment of the spring steel strip; preparation of foamed rubber; compounding, curing, inspection, stamping and beading of the foamed rubber and the spring steel strip in sequence to obtain a finished product. The foamed rubber of the present invention is tightly bonded to the spring steel belt, and is not easy to peel off. The product is environmentally friendly, non-toxic and odorless, has a large amount of compression, good resilience, and good flexibility, and the skeleton adopts a spring steel belt. The honeycomb structure can maintain long-term elasticity, and the torque will not decay for a long time.
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Description

technical field

[0001] The invention belongs to the technical field of sealing gasket preparation, in particular to a preparation method of an anti-attenuation gasket. Background technique

[0002] Gaskets are widely used in the joints of pipes, valves, and flanges in industries such as automobiles, machinery, petrochemicals, metallurgy, electric power, and coal mines to seal media such as fuel, lubricating oil, acid-base, high-pressure air, water, steam, and organic solvents. . However, due to the characteristics of the material after the bolt is tightened, the material has a certain creep relaxation rate, resulting in a certain torque attenuation, resulting in a decrease in sealing performance. In order to make the gasket have a long-term sealing ability, in addition to changing the ordinary bolts with gaskets to flange bolts, the support surface of the flange surface bolts is designed at an angle. During the locking process, when the support surface contacts the base sur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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