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Wuxi Hengye Electric Heater Equipment Co.,Ltd
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What are the categories of electric heating elements?

Electric heating element products of different, conventional varieties, alloy electric heating, electric heating material, the microwave heating device, stainless steel electric heating plate, electromagnetic induction heating device, electric heating tube, electric heating, electric heating plate, heater, the electric heating cables, electric heating plate, electric dipole, electric heating coil, electric rods, electric heating cable, electric heating core, mica heating plate, ceramic heating plate, tungsten and molybdenum products, silicon carbide, molybdenum powder, tungsten bars, wire, mesh belt, there are many electric heating element varieties.

Electric heating casting is electric heating element and a classification, such as cast aluminum, cast copper, cast iron heater, PTC heater, steam cooling tube. Resistance with far infrared radiation heater for heating device in the oven, oven, oven, relevant industry of cable tray, electric heater, electric heating boiler, boiler heat pipe, oven with electric heating tube, fin electric heating pipe, explosion-proof electric heater, storage electric heater, high temperature ceramic electric heater, molecular sieve electric heater, circulation type electric heater, crawler type electric heater, hot water heater, fluid circulation type electric heater.

1.the electric heating wire

The electric wire is a kind of electric heating element first appeared, it is for electric principle to realize the transformation of energy. Although the electric heating wire for the traditional electric heating elements, but has not yet been replaced, and now the electric wire is still in various fields, especially in industrial production and laboratory is widely used. The electric wire is made of Fe Cr and Ni Cr alloy in Aluminum Alloy in recent years, the highest temperature of Fe Cr Aluminum Alloy has reached 1400 C. Electric wire based, in recent years, the development of the heater, electric heating plate, an electric heating sheet, etc., electric heating elements, but their nature is still electric wire, its principle and from the electric heating. The electric wire has the advantages of high heating temperature and heat resistance temperature, technology is mature, easy manufacturing and convenient supporting applied in all kinds of electric heating equipment. The electric heating wire drawback is its energy conversion rate is low, fever accompanied by luminescence process. Therefore, energy conversion rate can reach 60% to 70%.

2.PTC electric heating element

The full name of PTC is Temperature Coefficient Positive, which is a thermal resistor, which is a kind of electric heating element which is made of conductive material through composite sintering. PTC heating element is relay wire of an electric heating element, limited limitations on the Curie temperature, can only be used in 350 DEG C heating, application in a variety of small power low temperature electric heating equipment. PTC electric heating element has the advantage of no open flame, heating efficiency can reach 70%. The shortcomings of the PTC electric heating element is poor seismic performance, can not be arbitrarily cutting, especially the PTC heating element by the Curie temperature limit, can not be used for more than 350 DEG C heating. Therefore, PTC heating elements in actual production application only limited in the field of low temperature heating.

3.conductive paint

The conductive coating is also called the black film, which is produced in the end of 1950s, which can be used as an electric heating element after being sprayed on the surface of the insulating material. Conductive coatings are used in many ways, and as the application of electric heating element is less, its advantages is a planar heating, large heat radiating area, seismic performance is good, but the drawback is that the heating layer is easy to fall off, and can only be applied to below 200 DEG C heating.

4.electric heating film

Electrothermal membrane is a new type of heating element in recent years. It is made up of two kinds of electric heating elements of PTC and conductive coating. Electric heating film is mainly used in the indoor heating and environmental temperature and other aspects, such as building heating, heat preservation room, etc.. The electric heating film has the advantages of no flame heating, surface heating, low thermal resistance, fast heat conduction, long service life, easy to cut and separate, in particular, the electric energy conversion efficiency of the electric heating film is as high as 90%, and the heat energy loss is small. The shortcoming of the electric heating film is that the temperature rising speed is slow and the heating temperature is not high, and the heat dissipation rate is fast after power failure.

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