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Home » Kinds of Extruded Profiles » Rubber Extruded Profiles » Silicone Extruded Profiles

Silicone Extruded Profiles
Silicone Extruded ProfilesSilicone rubber is extruded to make a wide range of products. This includes solid or sponge tubing, rods, gaskets, seals, etc. The following image shows a typical silicone extruded profile of a tube.

Manufacturing Silicone Extruded Profiles
To produce silicone extruded profiles, rubber is forced continuously through a die. This die helps it to forms into a desired cross-sectional size and shape. Silicone rubber ideally must be extruded at room temperature. A vital point about the silicone rubber extrusion is that temperatures may not be allowed to go beyond 54°C during the process of extrusion. This is to ensure protection against scorching and loss of the vulcanizing agent.
Silicone ExtruderA screw extruder used for manufacturing silicone extruded profiles must contain the following equipment:
What Constitutes A Good Die Design
A good die design should incorporate the following things:
  • Absence of "dead spots"
    There should be no”dead spots” to catch or hold the rubber as it move towards the die. If some amount of silicone rubber is trapped in the extruder for a prolonged period, there may be the potential risk of frictional heat causing vulcanization. This would give rise to problems of restricted flow and rough extrusions.

  • Uniform flow
    There should be uniform flow of silicone rubber through out the die. Care must be taken for sharp corners in the die as they are inclined to produce excessive drag. This runs the risk of having rough edges on the extrusion.

  • Flexibility
    Dies should be designed in a manner to leave scope for easy corrections or adjustments.

Features of Silicone Extruded Profiles
The silicone rubber extruded profiles show the following features:
Applications of Silicone Extruded Profiles
Silicone Extruded profiles have a variety of industrial applications. Some of the most popular applications include the following:
Silicone Extruded Profiles for Core Healthcare Products

Silicone extruded profiles can be processed for making thin-wall, tight-tolerance ID/OD tubing for use in medical applications. Some of the products include:
Silicone
  • ID/OD tubing with 1.5" diameter
  • Multilumen
  • Microlumen
  • Drain tubing
  • Gaskets
  • Wound drains
  • Urinary catheters


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