Copper clad aluminum enamelled wire can be used as signal transmission, but now as power transmission, it is easy to have problems, and the service life of its products will be greatly reduced. In fact, in the use of copper-clad aluminum enamelled wire, pay attention to the oxidation protection of the section of the lower enamelled wire to ensure the effective combination of copper and aluminum, which can be used for a long time.

advantage

Its characteristics are between copper and aluminum, combining the excellent conductivity of copper and the light weight of aluminum.

characteristic

1. DC resistivity: the DC resistivity of copper clad aluminum wire is about 1.45 times that of pure copper wire; When the resistance value is the same, the weight of copper-clad aluminum wire is about 1 / 2 of that of pure copper wire.

2. Good solderability: copper clad aluminum wire has the same Electromagnetic wire  solderability as pure copper wire because its surface is concentrically coated with a layer of pure copper without special treatment like aluminum wire; At the same time, the copper-clad aluminum wire has a thick copper layer to ensure that the solder performance of the product will not be affected when scraping the paint;

3. Light weight: copper clad aluminum wire density is 1 / 2.5 of pure copper wire with the same wire diameter, which is very effective to reduce the weight of the coil; Using Shenzhou copper clad aluminum wire instead of copper wire can save at least 30% of the cost.

application area

1. High frequency transformer, ordinary transformer;

2. Inductance, electromagnetic coil;

3. Motors, including household motors, various micro motors, compressors and other motors with high environmental requirements;

4. Special electromagnetic wire for audio coil and optical drive;

5. Electromagnetic wire for deflection coil of display;

6. Electromagnetic wire for degaussing coil;

Attention items

one

Copper clad aluminum enamelled wire can be used as signal transmission, but now as power transmission, it is easy to have problems, and the service life of its products will be greatly reduced. In fact, in the use of copper-clad aluminum enamelled wire, pay attention to the oxidation protection of the section of the lower enamelled wire to ensure the effective combination of copper and aluminum, which can be used for a long time.

two

Copper clad aluminum wire and copper clad aluminum enameled wire can not be used in many fields, but in fact, many enterprises are using transformers, which is very worrying. There are two concerns about the use of copper-clad aluminum wire. Its resistivity is higher than that of constant cross-section copper, and the problem of temperature rise; The oxidizability of aluminum wire will further increase the conductor resistance and prevent oxidation.

three

The most worrying thing is the combination of copper and aluminum in copper clad aluminum wire, which is often called metallurgical combination in the industry, and its reliability in the process of long-term use. In the process of thermal expansion and cold contraction, there is no real demonstration in the industry whether the combination ability of copper and aluminum can stand the test.

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