What are the features and advantages 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 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 heat-conducting surface, low heat transfer resistance. When 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 present red or hot phenomenon, radiation heat loss is very small. So the electric heating film to do the electric heater polyheat power is appropriately high, generally in about 90%.

2、Long life, not easy to damage

General electric heat source is always used in a hot state, the oxidation occurs briefly, resulting in open joints. But the electric heating film operation, because the contact surface is large, rapid heat conduction, low temperature, improve the electric heating film material in the state of heating the oxidation problem, extending the service life.

3、Strong selectivity in appearance and wide application scale

Organic film can be made into film, line or board, and can be cut into different lengths and sizes as needed, and fixed on the appearance of the heated object by covering, pasting, surrounding and other methods. The inorganic film can be directly coated on glass, ceramics, metal coated with insulating film or other insulating materials, and is not bound by the shape of the substrate appearance. It can be applied to a variety of messy shaped vessels or work surfaces. This feature of electric heating film makes its use scale much wider than the traditional electric heating element.

4、It has self-limiting temperature characteristics

Many kinds of electric heating film has a positive temperature coefficient of 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 that the temperature of all parts of the electric heating film is uniform: electric heating film is exterior heating, the temperature uniformity requirements are very high, its self-limiting to ensure that the temperature is uniform everywhere, to prevent the phenomenon of uneven temperature everywhere.

(2) extend the service life of the electric heating film: self-limiting characteristics can prevent the electric heating film due to uneven thickness and part of the high temperature burning phenomenon, but also in the grid power supply presents overvoltage and overcurrent to maintain components from being burned, but the electric heating wire over-voltage or overcurrent will burn.

(3) reduce the technical requirements of the production of electric heating film: self-limiting temperature characteristics to prevent uneven heating of electric heating film, partial overheating and even burn due to uneven thickness, and then reduce the requirements of the production of electric heating film products of uniform thickness.

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