| 摘要 |
A fiber cutting tool is disclosed which comprises a heated element cartridge and a body. The heated element cartridge comprises (a) a blade formed from a fast heating resistance heating element encased in a thermal shock resistant and electrical resistant material, such blade having a distal end and a proximate end; (b) an element cover having a distal end and a proximate end which encloses the proximate end of the blade; and (c) a cartridge housing that encloses a portion of the proximate end of the element cover. In preferred embodiments, the blade is formed from a tungsten resistance heating element encased in a silicon nitride composite material. The body comprises (a) a body housing forming a handle; (b) a power supply for supplying power to components mounted within the housing; (c) a trigger switch mounted within the housing for activating the tool; (d) a setting switch mounted within the housing for specifying the desired temperature setting of the blade; and (e) a socket mounted within the housing and adapted for receiving the heated element cartridge. The power supply, trigger switch, setting switch and socket are electrically connected such that when the trigger switch is activated power is conveyed from the power supply to the resistance heating element causing the blade to heat to the desired temperature setting.
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