What are the characteristics of electric heating film?

Electric heating film is gaining more and more attention and is widely used because it has many advantages that traditional electric heating elements cannot match. Today, I would like to share with you the six characteristics of electric heating film.

1、Plane heating, high thermal power, energy saving and power saving

Electric heating film is a flat heating material, and the heated body constitutes a large thermal conductivity surface, low heat transfer resistance. Heating heat can be quickly transferred to the heated body, and because of this heating method of good thermal conductivity, the temperature of the electric heating film itself is not too high, will not appear red or hot phenomenon, radiation heat loss is very small. So the electric heaters made by electric heating film have quite high polythermal power, generally around 90%. Carbon crystal electric heating film

2、Long life, not easy to damage

General electric heat source is always used in a hot state, easy to produce oxidation, resulting in joint open circuit. But the electric heating film operation, because of the large touch surface, fast heat conduction, low temperature, improved the electric heating film material in the state of heating the oxidation problem, extending the use of life.

3、Strong selectivity in appearance and wide range of application

Organic film can be made into film, line or plate, and can be cut into different lengths and sizes as needed, and fixed on the surface of the heated object by covering, pasting and surrounding methods. Inorganic films can be directly coated on glass, ceramics, metal coated with insulating film or other insulating materials, without being bound by the shape of the substrate appearance. It can be applied to various complex shapes of vessels or work surfaces. This feature of electric heating film makes its use much wider than the traditional electric heating element.

4、It has self-limiting temperature characteristics

Many types of electric heating film have positive temperature coefficient resistance, that is, they have temperature limiting characteristics. This is a characteristic that electric heating wire does not have. This feature makes the electric heating film thickness is not uniform, the current at the thickness of the film is greater, the temperature rises more quickly. The film thickness temperature increases, the resistance increases, the resistance increases, the current decreases and the temperature decreases. This feature brings many advantages to the electric heating film.

(1) Ensure uniform temperature in all parts of the electric heating film

Electric heating film is exterior heating, the temperature uniformity requirements are very high, its self-limiting to ensure the temperature uniformity everywhere, to prevent the phenomenon of uneven temperature everywhere.

(2) Extend the service life of electric heating film

The self-limiting characteristic can prevent the electric heating film from burning at high temperature due to uneven thickness, and also protect the components from being burned when there is over-voltage and over-current in the power grid, but the electric heating wire will be burned when it is over-voltage or over-current. Silicon crystal electric heating film

(3) Reduces the skill requirements of electric heating film production

Self-limiting characteristics prevent uneven heating, partial overheating and even burning due to uneven thickness of the electric heating film, and then reduce the requirements for uniform thickness in the production of electric heating film products.

5、Simple processing technology, low cost

Using electric heating film instead of traditional electric heating wire, electric heating tube, electric heating plate and other electric heating components, can eliminate the mica sheet, asbestos sheet, furnace plate, pipe and other auxiliary parts, and then greatly simplify the structure of the components, manufacturing process is simple, the weight, thickness and cost can be greatly reduced. On the other hand, the material of electric heating film is a common industrial material, the cost is low.

6、No open flame, safe and reliable

Electric heating film does not produce open flame in the process of electrical heat conversion. Electric heating film heater in the state of boiling water heated to 100, electric heating film will not burn paper, cotton, matches, touch will not ignite. So the electric heating film is very suitable for some special places that need heating and heat preservation, but do not allow open flame.