1. What is FEP heat shrink tubing?
FEP heat shrink tubing is a high-performance heat shrinkable protective sleeve made of fluorinated ethylene propylene copolymer (FEP). The material shrinks significantly radially when exposed to heat, wrapping tightly around wires, cables, or other components that need to be protected, providing good insulation, moisture and corrosion protection, and mechanical stress relief. Due to its excellent chemical resistance, electrical insulation and low-temperature toughness, FEP heat shrink tubing is widely used in aerospace, electronic appliances, chemical industry, automobile manufacturing and other industries.
2. What are the properties of FEP heat shrink tubing?
1.Wide temperature range: long-term operating temperature from -80 to +200, short-term can even withstand higher temperatures.
2.High chemical stability: almost not attacked by all chemical substances, and has excellent resistance to strong acids, strong alkalis, solvents, etc.
3.Superior electrical properties: It has low dielectric constant and loss factor, and is an excellent electrical insulating material.
4.Excellent physical properties: low coefficient of friction, non-toxic, non-sticky and high transparency.
3. What is the manufacturing process of FEP heat shrinkable tubing?
The manufacturing process of FEP heat shrinkable tubing mainly includes the following steps:
1.Raw material preparation: high-quality FEP resin particles are selected for pretreatment to ensure the purity and stable performance of raw materials.
2.Extrusion: The pretreated FEP resin is melted and continuously extruded at a specific temperature through a special extruder to form a tubular structure.
3.Stretch and set: Axial and radial bidirectional stretching of the newly extruded pipe within a certain temperature range, so that its molecular chains are arranged in an orientation to prepare for subsequent heat shrinkage.
4.Cooling and shaping: Rapid cooling allows the FEP tubing to solidify and maintain its diameter in the expanded state.
5.Heating and shrinking: When the user is using, the user only needs to apply appropriate heat (such as heat gun, hot water bath) to the FEP heat shrinkable tubing to shrink to the required size, closely fit the protected object, and play the role of insulation and protection.
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