What are the categories of electric heating elements?

An electric heating element refers to a device that uses electric energy to convert electric energy into thermal energy. It can be used to heat liquids, gases, and various solids, such as metals and semiconductors. Electric heating elements can be divided into many types according to different working characteristics and application scenarios. In this article, electric heater manufacturers will give a detailed introduction to the classification of electric heating elements.

1. Classification by working principle

1. Resistance heating element

The resistance heating element mainly uses the resistance generated by the passage of electric current through the material to generate a large amount of heat energy, causing the temperature of the material to rise. Generally speaking, the materials commonly used for resistance heating elements are metal materials, alloy materials, carbon materials, etc., among which metal materials are the most widely used materials. Commonly used resistance heating elements include electric furnace wire, electric heating tube, electric heating plate, etc.

2. Induction heating element

The induction heating element mainly uses the alternating current to generate a changing magnetic field, and transfers electric energy to the heated material through inductive coupling, causing eddy currents inside the material, and generating a large amount of heat energy, thereby increasing the temperature of the material. Commonly used induction heating elements include induction furnaces, induction heaters, induction heating plates, etc.

3. Electron beam heating element

Electron beam heating element uses high-energy electron beam to directly act on the material, causing the electrons or molecules inside the material to collide, thereby increasing the temperature of the material. Common electron beam heating elements include electron beam furnaces, electron beam furnace wires, etc.

4. Laser heating element

Laser heating element uses laser beam to directly act on the material, causing the single atoms or molecules inside the material to be excited, thereby increasing the temperature of the material. Common laser heating elements include laser cladding equipment, laser heaters, etc.

2. Classification by structural form

1. Linear electric heating element

Linear electric heating element refers to an electric heating element made by welding a thermal resistance wire or alloy wire into a coil shape and then encapsulating it in an insulating material. Commonly used linear electric heating elements include electric heating winding, electric furnace wire, electric heating tube, etc.

2. Bend electric heating element

Bend electric heating element refers to bending a resistance wire or alloy wire into a required shape, and then fixing it to the required heating part through the support of insulating material, or directly welding it to the surface of the metal material for heating. Commonly used curved electric heating elements include electric heating plates, electric heating belts, etc.

3. Surface electric heating elements

Surface electric heating elements refer to heating achieved directly through the resistance heating effect of the film by plating a resistive film or alloy film on the surface of a metal or insulating material. Commonly used surface electric heating elements include thermal resistors and varistor sensors.

4. Special electric heating elements

Special electric heating elements refer to electric heating elements with special functions used in special occasions. For example, electric heating elements used in medical care, drying materials, constant temperature and humidity environments, etc.

III. Classification by use

1. Industrial electric heating elements

Industrial electric heating elements are widely used in various heating fields, such as electricity, electronics, petroleum, chemical industry, automobiles, aviation and other industries. Commonly used industrial electric heating elements include electric heaters, electric furnaces, electric heating tubes, thermal resistors, electric heating plates, etc.

2. Household electric heating elements

Household electric heating elements mainly refer to various heating devices used in family life, such as electric kettles, electric ovens, electric lunch boxes, electric rice cookers, etc. Common household electric heating elements include heating wires, heating tubes, heating sheets, etc.

3. Agricultural electric heating elements

Agricultural electric heating elements are mainly used in agricultural production fields, such as vegetable greenhouses, farms, etc., which can improve the growth environment and increase the quality and yield of crops and livestock. Common agricultural electric heating elements include water heaters, air conditioners, heating lamps, etc.

In summary, electric heater manufacturers summarize: Electric heating elements are a widely used heating equipment, which can be divided into many types according to different working principles, structural forms and uses. Understanding the characteristics and application scenarios of different types of electric heating elements is of great guiding significance for the correct selection of electric heating equipment.