Hangzhou Bright Rubber Plastic Product Co., Ltd. is one of the leading manufacturers and suppliers of extruded rubber parts in China. If you're going to buy extruded rubber parts made in China, welcome to get more information from our factory. We also accept customized orders.
What is rubber extrusion?
Rubber extrusion is a forming process where synthetic or natural rubber materials are shaped by forcing them through a die at a high temperature and pressure. It is carried out using a screw extruding machine, which consists of a heated shearing screw conveyor and a die. The shearing screw conveyor pushes the rubber material onto the die while it is being heated and pressurized. The die is located on the other end and serves as a shaping tool for the plasticized rubber.
Upon exiting the die, the extruded rubber typically undergoes post-processing to improve mechanical properties and for finishing. Vulcanization is a method wherein the rubber is heated with sulfur, accelerator, and activator at 140°C – 160°C. A vulcanized rubber exhibits increased elasticity, weather resistance, tensile strength, and hardness. Other post-processing methods include cutting, drilling, coiling, splicing, and taping.
What are the Materials Used in Rubber Extrusion?
Chloroprene
Styrene-Butadiene Rubber (SBR)
Acrylonitrile-Butadiene Rubber (NBR)
Natural rubber
Butyl
Viton
Nitrile
Neoprene
Ethylene Propylene Diene Monomer (EPDM)
Silicone
Fluorocarbons
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