Comparison of PTC and MCH Ceramic Heater in Hair Straightener Comb
|Hair Straightener Comb PTC heating piece||Hair Straightener Comb MCH ceramic heater|
|Structure principle||PTC is a high temperature sintered ceramic heater with positive temperature coefficient||High thermal conductivity alumina ceramics was used as the substrate and heat resistant refractory metal was used as the internal electrode to form a heating circuit|
|The main advantages||The surface temperature of the heating body can be controlled and constant and can prevent dry burning.|
The surface of the product is not charged, and the working process is hydropower isolated.
Ceramic substrate, the use process is not easy to scale;
Small size, power density (> 35W/cm cubed), fast warming rate (> 900 absolute C within 30 seconds), high thermal efficiency;
Security good, hot line seal in ceramics, high voltage 4200 v/S no breakdown, products insulation resistance Ω 100 m or more
Long service life, with an average life of 10,000 hours or more;
Good acid and alkali resistance;
The power is stable in the process of using the product, and the power will not decay in long-term use.
Free of harmful substances in accordance with ROHS requirements;
The product can withstand dry burning.
1. The surface of the product itself is charged, and it needs to be insulated on the surface and installed in a special heat dissipation component to increase the assembly cost;
2. The product and the heated object are the heat loss in the indirect heating process, which leads to the decrease of thermal efficiency;
3. The PTC heating chip will gradually decrease in power as the working time increases;
4. Lead in the product does not meet the environmental requirements.