| 摘要 |
FIELD: manufacture of heating and resistive units for domestic and industrial electrical appliances. ^ SUBSTANCE: novelty is that conducting composition incorporating conducting material particles distributed in polymeric binder and insulating material particles has in addition material controlling temperature coefficient of resistance that incorporates in its composition iron silicides, silicon content of the latter being between 14.3 and 81.0 mass percent; heat-resistant polymers are used as polymeric binder and insulating material, pyrolitic graphite and nickel, as conducting materials, proportion of their ingredients being as follows, mass percent: polymeric binder, 24 - 62; conducting material, 16 - 55; controlling material, 20 - 50. ^ EFFECT: enlarged operating temperature range, enhanced current density and chemical resistance, eliminated aging probability. ^ 6 cl, 1 tbl |
