The automotive sealing the is one of the important parts of the car, is widely used in doors, windows, body, seats, sunroof, eng

The automotive sealing the is one of the important parts of the car, is widely used in doors, windows, body, seats, sunroof, engine compartment and trunk and other parts, has a waterproof, sealing, noise, dust , antifreeze, shock absorption, warmth and energy conservation an important role. It must have a strong tensile strength, good flexibility, but also requires a relatively good heat resistance and aging resistance. In order to ensure the fastening strips and profiles, the strip sectional structure size must be matched with the profiles.Classification of automotive sealing and features are as follows: 1. Categories include: the name of the hood seal (HOOD), can be divided into the front side panel and rear seal installation parts (components); door gasket (DOOR SEAL); ago, the rear window seal (WINDOW SCREEN); side window seal (SIDE WINDOWSEALING); the sunroof seals (SUNROOF SEALING); door head and said seal (PRIMARY DOOR SEAL); the window guide groove Seal (GLASSRUN CHANNEL); inner and outer bar (water cut) (WAISTLINE); suitcase seal (TRUNK SEAL); Anti-noise seal (ANTI-NOISE); the dustproof article (ANTI-DUST). 2 according to the classification of the cross-sectional shape can be divided into the type of solid core products (round, square, flat-shaped cross-section shape), hollow products and metal rubber composite products. Metal rubber composite seals accounted for more than 60%. Section design is essential for the rubber seal. The first is the the sealing lips shape, size design, on both sides of the sealing lips should be the same, the appropriate size of the force from the window glass on both sides of the contact glass. Lips length, thickness should be appropriate, too thick, too long to make the glass lift resistance is too large, too thin, too short will cause the glass is not a good guide and sealing, resulting in vibration, noise, leaking phenomenon; followed the cross-sectional shape of the bottom, size, design, the window steel tank sectional projection, its role is to assemble the guide groove, therefore, the bottom of the guide groove cross section should be designed with a corresponding structure, both easy to mount, also taking advantage of the own elasticity of the sealing strip attached to the guide groove in the steel, and to prevent its prolapse; Finally, the shape, size, edge outside the ride, in order to improve the appearance, the guide groove finishes should closely fit with the body. Sealing characteristics, classification, can be divided into the weather the seal (WEATHERSTRIP) and the general seal (SEALING). Wherein, the weather sealing strips with a hollow sponge bulb tube, preferably the temperature and humidity hold function. Common weather seal door gasket, trunk seals, engine lid strips. Commonly used general seal the front and rear windscreens seal and the seal of the corner window, inside and outside the bar. Rubber composite structure classification can be divided into pure rubber sealing strip - composed of a single plastic types; the two composite seal - by dense plastic and foam sponge rubber, often contain metal in the axial direction inside the dense rubber the skeleton material; three composite sealing strip - by two dense glue (one light-colored) and a sponge rubber, usually inside the compacting gum containing a metal skeleton and reinforcing fibers. Four composite seal - Company took the lead in the domestic development and production of four kinds of rubber compound seal, a thin layer of the protective layer of plastic coating the surface of the cotton gum (bubble pipe), which to further improve the service life of the seal member. 5. Material species classification, can be divided into the rubber seal; plastic seal; thermoplastic elastomer seal. Surface treatment status classification, part of the seal surface after additional processing can be divided into flocking seal; seal surface coating; fabric Stickers seal. 7 special function classification, some seals with electronic intelligence capabilities, such as the anti-pinch injury seal.Automotive sealing strip mainly by with good elasticity and anti-compression deformation, anti-aging, ozone and chemical action, the wide temperature range of -40 °C ~ +120 °C ethylene propylene diene rubber (EPDM) rubber foam and dense composite made of, containing unique metal fixture and tongue-shaped buckle, durable, conducive to the installation. Recommendations applicable temperature range: the PVC material -20 ° F - 150 ° F (-29 ° C - 65.5 ° C) EPDM material -40 ° F - 248 ° F (-40 °C - 120 °C) internal metal fixture material: steel wire or steel

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