Excellence in Inductive Wire Preheating
Orpund Switzerland — In an applications description on the Zumbach website we learn that extrusion lines producing communication wire require optimum and repeatable conditions in order to produce valuable product at the highest speeds.
Inductive preheating is clean and reliable.
The adhesion is improved, humidity and other residues are removed from the conductor of data transmission cables. Many insulating materials (also) can not be extruded successfully without preheating of the conductor.
Cellular insulating materials require a uniform conductor temperature in order to produce a uniform cell structure and accurate electrical properties.
Main Benefits of Wire Preheating:
* Better product quality and improved consistency
* Dielectric properties of the insulation material are more uniform and the process conditions are reproducible
* Improved cell structure for foamed and foam skin insulating material
* Higher line speeds are possible thanks to lower stress within the insulation material
* Shorter start-up times
* Control of the bonding of the insulation material to the conductor
* Uniform conductor temperature maintained even during ramping phases
* The aging characteristics of the insulation are improved substantially through better uniformity
* Oil and water residues on the conductor surface are cleaned away by evaporation
Preheater In-Line With Other Zumbach Measuring Instruments
All Zumbach preheaters can easily be integrated into existing lines. Existing data ports allow networking with host systems and can be configured for “multi-drop” applications. Numerous other Zumbach measuring instruments offer comprehensive solutions for process monitoring and automatic optimization.
About ZUMBACH
ZUMBACH ELECTRONICS is one of the leading manufacturer of in-line measuring, monitoring and control systems for the wire and cable industry, (from wire drawing to fiber optics, including extrusion of insulation and jackets), for plastic extrusion lines (mono filaments, catheter, tubing, pipe or profiles) and for the metal industry (hot and cold rolling, continuous casting, turning, grinding, polishing to QC inspection stations).
ZUMBACH instruments measure diameter (Laser Micrometers), wall thickness and concentricity (ultrasonic or eddy current principle), and detect lumps/neckdowns (optical flaw detectors). Specialized sensors monitor the capacitance of data wires and coaxial cables. – Controllers with application specific algorithms shorten start-up times, minimize scrap production and material usage.
Data acquisition and FFT analysis are offered as well. A line of inductive preheaters for metal conductors, spark testers for in-line testing of the dielectric, optical surface inspection system, and in-line profile monitoring systems complete the ZUMBACH line of industrial precision equipment.
Head Office
Zumbach Electronic AG
P.O. Box
CH-2552 Orpund Switzerland
Tel.: +41 (0)32 356 04 00
Fax: +41 (0)32 356 04 30
E-mail: sales@zumbach.ch
