The road of dream building

Release time:

2023-06-27 15:03

Electrical MaterialsIt is a general term for various materials used in the electrical field, including conductive materials, semiconductor materials, insulating materials and other dielectric materials, magnetic materials, which have certain electrical or magnetic properties. Electrical materials are usually classified by use, For example, ferrite; if classified by permeability, it is a magnetic material when used in magnetic circuits; if classified according to resistivity, it is a semiconductor material when used in circuits.

Commonly usedElectrical MaterialsMainly include the following:

1. Conductive materials

This kindElectrical MaterialsThe purpose is to transmit and conduct electrical energy, and it is also one of the main materials for manufacturing various electrical appliances. Conductive materials are generally classified into good conductor materials and high resistance conductive materials. Commonly used good conductor is mainly copper, aluminum, iron and so on. Other conductors such as gold and silver, although have good conductivity, but the price is higher, only used in special occasions. High resistance materials mainly include copper bran, manganese copper and iron chromium aluminum alloy, etc., mainly used in the manufacture of precision resistors.

2. Insulation materials

This kindElectrical MaterialsThe main feature is that it has a high resistivity. Under the action of a certain voltage, almost no current flows, so it is usually used to isolate charged objects so that the current can flow in a specific direction, which is the material basis for ensuring electrical safety.

There are many types of insulating electrical materials, and there are three common types:

（1) Gas insulating materials: air, nitrogen, sulfur hexafluoride, carbon dioxide, etc.

（2) Liquid insulating materials: mineral oils, such as transformer oil and capacitor oil.

（3) Solid insulation materials: such as glue, cardboard, wood, plastic, rubber, mica, etc.

3. Magnetic materials

This kindElectrical MaterialsThe main feature is its high magnetic permeability, which is usually used to manufacture iron cores for electrical equipment. Common magnetic materials include silicon steel, ferrite, permalloy and cast iron. Conductive materials are good conductors of electricity, and magnetic materials are good conductors of magnetism, and they are mainly used to form magnetic field paths.

4. Electric carbon materials

Electric carbon material is a special conductive material, which has good conductivity and electrical contact performance, and is mainly used to manufacture motor brushes. Connect the rotating rotor with an external power supply, and the material is mainly graphite.

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