Process flow of rubber products

The production process of rubber products mainly includes the following steps:
Plastering and mixing: Raw rubber needs to be plasticized to reduce its elasticity and increase its plasticity for subsequent processing. Plasticity can be achieved through methods such as mechanical stress, heat, oxygen, or chemical reagents. Mixing is the process of uniformly mixing various additives into raw rubber, which has a significant impact on the further processing of the rubber material and the quality of the finished product. ‌
Rolling and extrusion: After being plasticized and mixed, rubber is formed into thin sheets on a rolling machine, and then various shapes of semi-finished products are formed in the extrusion machine. This step is to convert rubber plastic into semi-finished products with specific shapes. ‌
Molding: The semi-finished product obtained by rolling and pressing is processed into a molded shape to meet the shape and size requirements of the final product.
Vulcanization: The molded rubber products need to undergo a vulcanization process to improve their elasticity and physical and mechanical properties. Vulcanization is the process of heating and applying pressure to cause a chemical reaction between the vulcanizing agent in rubber and rubber molecules, forming a cross-linked structure that enhances the strength and durability of rubber.
Equipment and technical requirements: In rubber processing, the main equipment used includes molding machines, open rubber mixing machines, closed rubber mixing machines, and screw plasticizers. The compression molding machine applies pressure to rubber through molds, while the rubber mixing machine is used for plasticizing and mixing processes. The parameters and technical requirements of these devices directly affect the quality and production efficiency of the products. ‌
Quality control and testing methods: During the production process, it is necessary to strictly control process conditions such as temperature, pressure, and time to ensure the quality of rubber products. The detection methods include checking the dispersion uniformity of the compounding agent, the plasticity of the rubber material, and the physical and mechanical properties.