Choosing co-extruded silicone wire for applications that require suppression of electrical noise, corona resistance, low loss of power and extremely flexible nature is ideal. The co-extrusion process for silicone wire involves the combination of two extruders running simultaneously to produce the semi conductive silicone insulation and the silicone outer jacket. There are many applications which require this type of performance.These applications include:
- Aerospace
- Medical
- X-Ray and MRI
- Radar systems
- Photo copiers
- Robotics
Extruding the semi-conductive insulation and the outer jacket layers of silicone at the same time insures that there is no air or any contamination particles at the joining of the two layers. The use of a semi-conductive silicone layer over the copper conductor reduces corona by filling the space around the conductor with semi-conductive silicone to remove the air. The semi-conductive material also increases the effective corona inception diameter from that of one of the strands in the conductor to a diameter slightly larger than the total conductor diameter. This results in the higher corona inception values and increase effective radius of conductor found in co-extruded silicone wires.
Features and Benefits:
- Corona, moisture and ozone resistant
- Lightweight and extremely flexible design
- Radiation resistance
- Excellent electrical characteristics
- Resistant to temperature extremes
- Lower EMI
Increased Customer Benefits:
- Reduces noise on radar
- Spots on Xerox copies
- Error spots on medical x-ray's
Built in stripes
Other uses for Co-extrusion
In 1958, The Wham-O Company had a problem: The stripe in the original Hula Hoop was painted on and was wearing off quickly after a short time of use. The Wham-O Company asked Calmont Wire & Cable's founder Bill Chilcote to find a solution to the problem. Bill seized the opportunity and developed a co-extrusion process and built the equipment to add the stripe right into the tubing, which made the stripe permanent. The stripe has evolved over the years but the fundamentals of Bill’s technology are still being used today for the Hula Hoop and many other applications in a variety of industries.
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