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HTV Silicone Rubber Production Line Machine Manufacturer | JCT Machinery

October 10, 2024
silicone rubber
What Is HTV Silicone Rubber?
High temperature vulcanized silicone rubber (HTV silicone rubber) is a silicone rubber material with high molecular weight linear polysiloxane as the main component. It is cross-linked at high temperature by adding a vulcanizing agent to form a silicone rubber product with elasticity and stability, thus making the silicone rubber have higher strength and elasticity.
HTV Silicone Rubber Production Line Equipment
1. Sigma mixer
2. Receiving trolley
3. Open mill
4. Cooling-water machine
5. Material storage station
6. Silicone rubber filter
7. Roller conveyor

sigma mixer            
HTV Silicone Rubber Production Process
  • 1. Raw Material Preparation

  • Determine the ratio of silicone rubber base material and additices according to product requirements. Accurately weigh various raw materials to ensure that they meet the formula requirements.

  • 2. Mixing

  • Put all raw materials into the mixing equipment for uniform mixing to ensure that the silicone rubber base material and additives are fully mixed. This process can adjust the temperature and shear force to achieve the best mixing effect.

  • 3. Molding

  • The mixed silicone rubber is initially molded by a calender or extruder. Select a suitable mold accouding to the shape and specifications of the product. For some products with complex shapes, use molds for compression molding.

  • 4. High-temperature Vulcanization

  • Put the molded silicone rubber into a vulcanization equipment and vulcanize it at a high temperature of 150℃ to 200℃. The vulcanization process causes the polymer chains to cross-link, forming a three-dimensional network structure, which improves the mechanical properties and high temperature resistance of the material.

  • 5. Cooling

  • After the vulcanization is completed, the product needs to be gradually cooled to room temperature to prevent material deformation caused by sudden temperature changes.

  • 6. Post-processing

  • Cut, trim and surface treat the finished product after vulcanization as required. For some products that require special surface properties, spraying, coating or other treatments can be performed.

  • 7. Inspection and Quality Control

  • Test the physical properties of the finished product such as hardness, tensile strength, elongation at break. Test the electrical insulation properties to ensure compliance with industry standards. Perform visual inspection of the finished product to ensure there are no defects.


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