A kind of well rod adds electric heating cable and manufacture method thereof

A kind of well rod adds electric heating cable and manufacture method thereof

  • CN 106,102,196 A
  • Filed: 05/30/2016
  • Published: 11/09/2016
  • Est. Priority Date: 05/30/2016
  • Status: Active Application
First Claim
Patent Images

1. well rod adds an electric heating cable, including being located at the copper conductor at center, it is characterized in that:

  • set successively outside copper conductorHaving the wrapped sinter layer of polyimides, ceramic-rubber insulating barrier, sheath and external sheath layer, described ceramic-rubber insulating barrier is by weightIt is as follows that number meter comprises composition;

    Silicone rubber 40-45 part, ceramics 20-25 part, glass dust 15-20 part, silica flour 5-10 part, mica powder 8-10 part, gas phaseMethod White Carbon black 5-10 part, coupling agent 0.5-1 part, softening agent 2-5 part, double two or five vulcanizing agent 0.8-1 parts;

    Described sheath is to be formed by double-deck mica tape overlap joint is wrapped, and described external sheath layer is that steel band is along longitudinal seam welding drawingBecome;

    The cable sealing head being connected with external sheath layer it is provided with, for realizing the short circuit of copper conductor and external sheath layer in copper conductor one end.

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