Manufacture of plane heating element

Abstract

Abstract PURPOSE:To manufacture a plane heating element which can be used in high temp. range compared with conventional heating element and which has good stability, by painting modified silicone resin coating compounded with a prescribed quantity of electroconductive particles on the surface of a substrate having electrical insulating property, then by baking the coating at a specified temp. CONSTITUTION:Resistance coating such as modified silicone alkyd resin compounded with 0.05-9pts.wt. electroconductive particles such as graphite per 1pt.wt. resin is painted on an insulating substrate such as base glass fabric, ceramic plate etc., then it is baked at 350-550 deg.C temp. to form desired layer of resistance heating element. The plane heating element hereby manufactured has strong coating layer, keeps stable resistance heating function in use at high temp., and the heating element acquires fire retardancy, hence stability against fire is improved.

Inventors

• 👤 Hiroshi Ohira
• 👤 Masahiro Fukazawa

Bibliographic Details