In today's society, FEP heat shrinkable tubes are widely used in electronics, machinery, communications, etc., as well as in daily life, and play an important role in social development. FEP heat-shrinkable tube is a certain formula of FEP tube that uses high heat and high pressure to expand to produce a "shape memory" effect, so as to achieve the purpose of covering various communication equipment, batteries, lamps, etc., and mentioning the purpose of insulation protection. Derivatives of FEP heat shrinkable tubes have spread to various fields and industries through the continuous development of our human beings.
What are the manufacturing processes of FEP heat shrinkable tubes?
It is mainly divided into three parts: mixing and granulation, the second extrusion molding, the third expansion and shaping, and the packaging.
The technology used in the production process of fep heat shrinkable tube has the following three points:
1. There are chemical formulas,
2. Molding technology (extrusion molding technology),
3. Transmission control technology, tension control technology, expansion production technology and other production technologies that need to be calculated.
The manufacturing process of fep heat shrinkable tube has the following four points:
1. Mixing and granulation
Weigh the FEP masterbatch and expanded particles according to the formula, stir them evenly with a high-speed mixer, and then stay for about 1 hour to fully immerse them. Mixing and granulation is completed by a granulator, a cooling water tank, a blow dryer and a pelletizer. The parameters of the mixing and granulation process are: the main engine speed is 1 000~1 400r/min, the feeder speed is 50~80r/min, the body temperature is 110~160℃, and the head temperature is 190~240℃.
2. Extrusion molding
Extrusion molding is completed by extruder, cooling water tank, tractor, tensioner and winder. Its technological parameters are: extrusion speed 20~50r/min, traction speed 30~50Hz, extruder temperature 290~350℃.
3. Expansion
Heat the FEP plastic pipe added with the expansion masterbatch to a high elastic state, and then use an expansion machine to expand to obtain a FEP heat shrinkable pipe. The expansion and shaping process parameters are: temperature 80~150℃, input speed 8~10Hz, pull out Speed 8~10Hz, vacuum degree -0.06MPa.
Yozonetech produces FEP tubes, Teflon optical fibers and other fluoroplastic products. FEP heat shrinkable tube can be made into transparent, red, white and other colors, can achieve 2 times the shrinkage ratio, and the thickness before shrinking can be 3mm.
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