Rubber seals manufacturer vulcanized rubber seal is analysed the reasons of air bubble - Dongguan DongSheng di sealing products co. , LTD

Seal is a collection of product design, mold design, processing, research and development of rubber formula, mixing and testing the integration of large rubber seal factory, dongguan matching with many large automobile enterprises, internal use automobile industry quality system, long-term efficient operation more than 10 years. Automotive sealing strip is one of the important parts, at the same time it is also one of processed products, widely used in the body, seat, chair, door, window, skylight, engine case and trunk parts, such as waterproof, sealing, sound insulation, dust-proof, antifreeze, shock absorption, heat preservation and energy saving. Can improve the car seal air tightness, prevent wind and rain intrusion into the car. Once aging car seal damage, will cause the rain leakage, increase the car driving wind noise, leak and it is easy to make body corrosion, many people for such a problem a lot of crime. Then the car door sealing strip, rubber seals sealing strip product in the process of production can lead to some problems of car door sealing strip, rubber seals sealing strip surface appear bubble phenomenon, specific what reason be? Let's take a look at: ( 1) Not fully vulcanizing, are not ripe appears to have bubbles; ( 2) Mixing rubber seals in fertilizer mixing scattered unevenly; ( 3) Type rubber uneven thermal refining, the surface is not smooth; ( 4) parking time insufficient or no parking, production use; ( 5) Vulcanizing agent impurity is more, small molecule impurities in advance into decomposition, bubble residual products; ( 6) When rubber mixing machine thermal refining, wrapped in air, surface sizing was harboring the phenomenon of air; ( 7) Mixing mill roll Jane temperature, the temperature of thermal refining for rubber, plastic extrusion line temperature control is not strict, semi-finished parts surface bubbles; ( 8) Mixing temperature is low, there is water, moisture volatilizes not net, at high temperature exhaust glue on the mixing machine, plus sulfur sulfur melting, or charred.
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