In this treatment method of a coated wire, a coated wire, which is a metal wire coated with a resin, is subjected to low-temperature heating in a non-combustion atmosphere in coexistence with an alkali to embrittle the coating resin, the embrittled coating resin is crushed, and the coating resin and the metal wire are separated.

A heater cartridge comprises a heater contained within a distal section of housing pipe near a working portion, such as soldering iron tip or a blade for stripping wire. The wall thickness of the housing pipe is generally thin to limit heat transfer to a proximal section of the housing pipe near where a user's hand would be normally located. The wall thickness is thinner in a region near the heater as compared to a region expected to have a high bending moment.

A system for removing a foil shield from a cable comprises an induction coil for inductively heating the foil shield of the cable, a cable feeding device for selectively passing the cable through the induction coil, a cutting blade for selectively removing at least a portion of the cable, and a sensor for detecting at least one characteristic of the cable.