Method and device for insulating covering of cables

Adhesive bonding and miscellaneous chemical manufacture – Methods – Making electrical conductors of indefinite length

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Details

156272, 156273, 156274, 219 1041, B32B 3126, H01B 1306

Patent

active

041860411

ABSTRACT:
The proposed method for insulating the covering of cables resides in high-frequency heating of the cable conductor wrapped with tapes from polymer materials, such as polyimidepolytetrafluoroethylene films, in a transverse magnetic field over a period of time required to reach the material softening temperature and maintaining this temperature until the polymer material is baked, which is done in a longitudinal magnetic field. The device for carrying out the above method comprises an induction loop heater and a cylindrical induction heater arranged coaxially therewith. The invention can most advantageously be used to provide for quality insulation of cables up to 70 sq. mm in cross section.

REFERENCES:
patent: 2371459 (1945-03-01), Mittelmann
patent: 3572286 (1971-03-01), Forney
patent: 3960629 (1976-06-01), Goldsworthy

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