Nano ceramic electric heating element and manufacturing method thereof

The invention relates to a nano ceramic electric heating element which comprises an electric heating element and a ceramic surface, wherein the ceramic surface is a composite nano ceramic material. The material is prepared from the following raw materials in percentage by weight: 61-69% of base material, 5-10% of nano cerium oxide, 15-20% of adhesive, 2.1-2.5% of stabilizer and the balance of solvent. The base material is composed of 10-50% of aluminum oxide, 40-60% of boron nitride and 10-50% of silicon carbide. The nano ceramic layer of the electric heating element has the advantages of high bonding strength, thermal shock resistance, no cracking and the like. The allowable temperature of the electric heating element is up to 300-2900 DEG C, the electrothermal transformation rate is up to 95%, and the effective life is more than 5 years. The nano ceramic electric heating element has wide wave range composite and protective properties (corrosion resistance, abrasion resistance and pollution slag resistance). The manufacturing technique does not change the structure of the electric heating element, and is simple to implement. The nano ceramic electric heating element is safe, energy-saving and environment-friendly.