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Dongguan Minz Rubber & Plastics Co., Ltd.
Add.: No.4, New Industrial Road, Shipai Tangwei, shipai town, Dongguan City
Tel: +86-0769-8665 2688
Fax: +86-796-8180 6477
Contact: Miss Li +86-136 6988 8704
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Installation and processing technology of O-type rubber seal
Release time:
2019-06-01 12:30
Source:
O-type rubber sealInstallation and processing problems
1. "O-type" rubber seal installation precautions "O-type" rubber seal is a simple shape and structure, specifications and dimensions, a large number of seals products. O-type rubber seals are generally used in hydraulic and pneumatic sealing pipe joints and flange surfaces. It is a sealing ring with a circular cross section.
O-type rubber seals are used widely in rubber sealing products. Generally, the rubber material is required to have certain mechanical strength, tear resistance, good heat resistance, oil resistance, chemical resistance and small compression deformation under the conditions of use. During installation, it is necessary to ensure that the groove design of the "O-type" rubber seal and the O-ring specifications installed ensure that the sealing surface is smooth and free of impurities. In the assembly work, the specifications of the O-ring seal include water chestnut and burrs, which bring the risk of leakage to your seal. In order to improve the assembly efficiency and prevent the surface of the O-ring specifications from scratching, we recommend using special sealing auxiliary tools for installation. Dongsheng Rubber Seal Company's sealing products have good performance and high service life. The dynamic pressure sealing life is 3-6 times higher than that of common sealing products in the actual market.
2. "O-type" rubber seal processing technology material considerations Therefore, rubber seals in the processing process with heat resistance, oil resistance requirements, the use of rubber to NBR rubber material more. Acrylate rubber can be used for oil-resistant seals that require higher temperatures. Fluororubber for oil-resistant rubber products requiring higher temperatures and silicone rubber for heat resistance. In the process of processing, the filling amount of rubber hardness should be considered to be appropriate, so as to prevent scorching caused by mixing difficulty caused by too high.

Therefore, in the case of "O-type" rubber seals, in order to improve heat resistance and oil resistance and reduce compression deformation, peroxide (such as DCP) vulcanization system or sulfur vulcanization system (low sulfur and high promotion) can be used. These two vulcanization systems can generate more carbon-carbon bond cross-linked structure and single sulfur bond cross-linked structure, improve the heat resistance and oil resistance of vulcanized rubber, reduce compression deformation.
In the filling and reinforcing system of the heat-resistant and oil-resistant rubber compound formula of "O-type" rubber seals, lower thermal carbon black, spray carbon black or semi-reinforcing carbon black are mostly used. These carbon blacks are characterized by coarse particles, good rubber elasticity, low heat generation, low compression deformation, and can be filled in large quantities to reduce the cost of rubber compounds. Such as rubber seals used in dynamic sealing conditions, the need to increase the tear resistance, high wear-resistant carbon black. Fluorine rubber compound is a self-reinforcing rubber, such as filling carbon black but reduce the mechanical properties of the compound, so generally filled with a small amount of low coarse particles of thermal carbon black or spray carbon black. Mingzhen Rubber and Plastic Products Company provides you with tailor-made seals and solutions. DSH seals have met the needs of customers. Various specifications, sizes and material formulas of O-type rubber seals are available for customer selection.
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