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China's sealing material products continue to improve

Updated:2017-01-04
Summary:

China's sealing material products continue to improve

In response to the high speed, high pressure and wide temperature field sealing requirements, our research institutes actively carry out related materials and products research, has now formed a series of product structure, to solve the hydraulic and pneumatic industries on the urgent need for sealing technology, product level continues to improve.

It is reported that China's self-developed high-performance sealing materials and products have been widely used in aerospace, aviation, weapons, ships, civil machinery industry and other fields. In the special vehicle transmission system of the weapon industry, sealing, anti-wear sleeve, , High-temperature gas tight plug device has also been applied, reciprocating and radiation shielding sealing materials are also special vessels to be promoted.

China's static sealing materials and products have reached a very high level. Static seal is to rely on the gap between the closed junction to achieve the sealing effect, according to different media, different working temperature, different sealing applications to choose. Static sealing products include different sizes of seals (O-ring, Y-ring, V-ring and other non-standard seals, seals, etc.), mainly for a variety of plane static seal, , Cylindrical static seal, dust seal, vehicle window frames, door seals, etc., for a variety of new special equipment, aerospace technology, civilian vehicles, such as providing a high-performance sealing products.

Rubber products to adapt to a wide range of temperatures. One wide temperature range of specialty silicon rubber varieties have high temperature type, ablative type, high strength type, ultra-low temperature type, and have the ability to further research and development, can provide all kinds of O-shaped seals, gaskets and other sealing products Special nitrile rubber with oil resistance, high temperature, high strength, high flexibility and other excellent performance, the material mature technology, process stability, resistance to most hydraulic oil, machine oil, lubricating oil, the application of wide temperature range, 50 ℃ ~ 130 ℃, a short time can withstand 150 ℃ high temperature, can be used in the manufacture of a variety of oil in the work of fixed or moving seals, valve parts and various gaskets, gaskets, seals and so on. Can provide a variety of products, and provide products installed life prediction technology; special fluorosilicone rubber materials and products made of small seals, fuel and oil vapor in the air medium long-term working temperature of -55 ~ 200 ℃, Short-term working temperature up to 250 ℃, naphthalene fuel, mineral oil, double-sided gear lubricants and other media to meet long-term work -55 ~ 150 ℃, 165 ℃ short-term working requirements.

High-speed rotary seal products are designed using fluid mechanics of fluid power oil seal. The structure of the seal and the lubricating effect of organic unity, reducing the working temperature of the lip and friction and wear, life expectancy than its similar products doubled. The hydrodynamic oil seal made of low friction formula Viton not only adapts to higher linear velocity and harsh conditions of use, but also can reduce the machining requirements of the shaft, can adapt to eccentricity of 0.25mm or more, and has a longer service life Oil seal greatly extended, has passed line speed 20 ~ 25m / s, pressure 0.01 ~ 0.05MPa, operating temperature -40 ~ 180 ℃, 800h bench assessment. Can provide GB products in line with the performance evaluation, assessment and other services.

High-pressure reciprocating seal products is a high pressure, wear-resistant, low friction combination seal system. When the working medium pressure increases, the sealing pressure also increases, thus ensuring a reliable seal under high pressure conditions. High temperature, high pressure gas sealing materials and products, gaskets as a key component of special equipment has made great strides, to overcome the shortcomings of the existing gas-tight mat, to ensure that special equipment in a variety of special conditions airtight mat gas Reliable, adaptable, easy to operate, interchangeable. Corrosive gasket seal materials are being used in a variety of special devices.

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