UNION Insulation Materials

Custom made silicone products

Tel:0755-88832696

Food grade silicone tube

The following products are custom-made food-grade silicone tubes. The raw materials are imported Shin-Etsu silicone.In addition, the company currently has automatic tube cutters that can cut any length for customers, with high accuracy and high efficiency.
Tel:0755-88832696

Silicone extrusion process: Silicone rubber is generally soft, has good extrusion effect, and is easy to operate. It can extrude products of various shapes and sizes. Its processing equipment and tools are basically similar to ordinary rubber. The machine usually uses a single-thread screw with Φ30 or Φ65mm, and the length-to-diameter ratio is (10 ~ 12): 1. Keep the temperature as low as possible when extruding, it is better not to exceed 40 ℃, so the barrel and screw must pass cooling water. For products with higher quality requirements, 80-140 mesh filters can be installed near the head to remove impurities in the rubber compound and improve extrusion quality. Silicone rubber extrusion semi-finished products are soft and easily deformed, so they must be vulcanized immediately. The most common method is continuous vulcanization with hot air; the wire and cable industry usually uses high-pressure steam for continuous vulcanization. If continuous vulcanization cannot be performed after extrusion, in order to prevent deformation, it should be picked up with a disc, a drum or a conveyor belt immediately after extrusion, and separated with talc to prevent mutual adhesion. If the rubber compound is found to be too soft to be extruded, 3 to 5 parts of gas phase silica can be mixed into the rubber compound. For rubber compounds used for extrusion, the amount of vulcanizing agent should be appropriately larger than that of molded products. The extrusion speed of silicone rubber is lower than other rubbers. When the same extrusion speed as other rubbers is required, a higher Screw speed








 

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Related products

    Food grade silicone tube

    The following products are custom-made food-grade silicone tubes. The raw materials are imported Shin-Etsu silicone.In addition, the company currently has automatic tube cutters that can cut any length for customers, with high accuracy and high efficiency.

    Food grade silicone tube

    The following products are custom-made food-grade silicone tubes. The raw materials are imported Shin-Etsu silicone. In addition, the company currently has automatic tube cutters that can cut any length for customers, with high accuracy and high efficiency. At present, the company has obtained FDA, LFGB, DGCCRF, REACH, RoHS, GB4806.1-94, UL and other certifications.

    Food grade silicone tube

    The following products are custom-made food-grade silicone tubes. The raw materials are imported Shin-Etsu silicone.In addition, the company currently has automatic tube cutters that can cut any length for customers, with high accuracy and high efficiency.

    Food grade silicone tube

    This product company applies a special formula, the product can withstand high temperature of 250 ℃, and its color and size can be according to customer requirements.
Home >> Products >> Silicone extrusion >> Food grade silicone tube

Food grade silicone tube

Silicone extrusion process: Silicone rubber is generally soft, has good extrusion effect, and is easy to operate. It can extrude products of various shapes and sizes. Its processing equipment and tools are basically similar to ordinary rubber. The machine usually uses a single-thread screw with Φ30 or Φ65mm, and the length-to-diameter ratio is (10 ~ 12): 1. Keep the temperature as low as possible when extruding, it is better not to exceed 40 ℃, so the barrel and screw must pass cooling water. For products with higher quality requirements, 80-140 mesh filters can be installed near the head to remove impurities in the rubber compound and improve extrusion quality. Silicone rubber extrusion semi-finished products are soft and easily deformed, so they must be vulcanized immediately. The most common method is continuous vulcanization with hot air; the wire and cable industry usually uses high-pressure steam for continuous vulcanization. If continuous vulcanization cannot be performed after extrusion, in order to prevent deformation, it should be picked up with a disc, a drum or a conveyor belt immediately after extrusion, and separated with talc to prevent mutual adhesion. If the rubber compound is found to be too soft to be extruded, 3 to 5 parts of gas phase silica can be mixed into the rubber compound. For rubber compounds used for extrusion, the amount of vulcanizing agent should be appropriately larger than that of molded products. The extrusion speed of silicone rubber is lower than other rubbers. When the same extrusion speed as other rubbers is required, a higher Screw speed








 

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  • Address:No.738 Dasan Village, Dashuikeng Community, Fucheng Street, Longhua District, Shenzhen
  • Tel:0755-88832696 / 29508742 / 29508747 / 29508754
  • Fax:0755-29807891
  • Email:sales@szunion.net

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Shenzhen UNION Insulation Materials Co., Ltd.  all rights reserved