Knowledge on the principles, characteristics, classification, and usage methods of electromagnetic compatibility shielding films

     Electromagnetic compatibility (EMC) shielding filmIt is a special material used to shield electromagnetic radiation interference and can be widely used in electronic devices, automobiles, airplanes, and other fields. This article will provide a detailed introduction to the principles, characteristics, classification, and usage methods of electromagnetic compatibility shielding films.

1、 The principle of electromagnetic compatibility shielding film

The main function of electromagnetic compatibility shielding film is to shield electromagnetic radiation interference. Electromagnetic radiation refers to the electromagnetic waves generated by electronic devices during operation, which can cause varying degrees of interference to surrounding electronic devices, personnel, and the environment. The principle of electromagnetic compatibility shielding film is to form a shielding layer around electronic devices through its special material structure, blocking the propagation of electromagnetic radiation and achieving the effect of reducing interference.

2、 Characteristics of electromagnetic compatibility shielding film

1. Good shielding effect: Electromagnetic compatibility shielding film can effectively shield the interference of electromagnetic radiation, reduce the failure rate of equipment, and improve the stability and reliability of equipment.

2. Good durability: Electromagnetic compatibility shielding film has good wear resistance, acid and alkali resistance, high temperature resistance and other properties, which can maintain good shielding effect for a long time.

3. Good processing performance: Electromagnetic compatibility shielding film can be processed in various ways such as cutting, folding, embossing, etc., suitable for electronic devices of various shapes and sizes.

4. Good transparency: Electromagnetic compatibility shielding film can maintain high transparency without affecting the display effect of the device.

5. Good environmental friendliness: The electromagnetic compatibility shielding film is made of environmentally friendly materials, non-toxic and odorless, and will not cause harm to human health and the environment.

3、 Classification of Electromagnetic Compatibility Shielding Films

    1. Metal shielding filmMetal shielding film is a shielding material made of metal foil, which has good shielding performance, but is easily damaged by external forces and requires special protective measures.

    2. Carbon fiber shielding filmCarbon fiber shielding film is a shielding material made of carbon fiber material, which has good durability and strength, but is relatively expensive.

    3. Silver paste shielding filmSilver paste shielding film is a shielding material made by printing silver paste, which has good shielding performance and transparency, but is easily affected by moisture and oxidation.

4、 Instructions for using electromagnetic compatibility shielding film

1. Cleaning materials: Before use, the surface of the material should be cleaned to ensure that it is clean, smooth, and free of dust, oil stains, fingerprints, and other impurities.

2. Measurement size: Place the shielding film on the equipment that needs to be shielded, and use a cutting tool to cut it into a film of the same size as the equipment.

3. Apply glue: Apply glue to the surface of the equipment and smooth it out with a scraper.

4. Film sticking: Place the film on the glue and flatten it with a scraper, while squeezing out any bubbles on the film.

5. Trimming the edges and corners: After the film is attached, use a cutting tool to trim the edges and corners to make them perfectly fit the equipment.

5、 Summary

Electromagnetic compatibility shielding film, as a high-tech material, has good shielding effect and wide application fields. When using, one should choose the appropriate shielding film type and brand according to their own needs and economic strength, and strictly follow the instructions to ensure shielding effectiveness and safety.