| 摘要 |
Provided is a metal substrate electric heating foil, including a metal substrate, with the metal substrate being sintered with a layered heterogeneous composite glass ceramic as an insulation thermal conduction material, a metal resistor foil or a metal resistor wire and a temperature sensing component principally being embedded in or buried in the layered heterogeneous composite glass ceramic. In the present invention, the bond strength between the bottom layer of the layered heterogeneous composite glass ceramic and the metal substrate and the bond strength between the functional layered heterogeneous composite glass ceramic and the metal resistor foil or the metal resistor wire and the temperature sensing component are high, with excellent thermal shock resistance performance, long service life, sensitive temperature control, and high temperature resistance, no melting, and no electrical leakage in damp conditions, greatly improving safety. The present invention has a uniform heating surface, small thermal inertia, fast heating speed, large heating area per unit volume, high power density, high thermal efficiency, flexible structural shape and power density design, and is low in cost and environmentally friendly in saving energy. |
