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The Rapid Development of Enameled Wire

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Enameled wire is the main raw material for products such as motors, electrical appliances and household appliances. Especially in recent years, the electric power industry has achieved continuous expansion. The rapid development of household appliances has brought a broader field to the application of enameled wires. Higher requirements are put forward for enameled wire. For this reason, the product structure adjustment of enameled wire cannot be avoided, and the matching raw materials (copper, lacquer), enameled process, process equipment and testing methods are also in urgent need of development and research.

At present, there are more than 1,000 enameled wire manufacturers in my country, with an annual production capacity of more than 250,000 to 300,000 tons. But in general, the status of enameled wire in our country is a low-level repetition, generally speaking, "high output, low grade, and backward equipment". In this situation, high-grade enameled wires for high-quality home appliances still need to be introduced, let alone participating in market competition. Therefore, we should redouble our efforts to change the status quo, so that our country's enameled wire skill level can keep up with the market demand, and squeeze in the market.

The development of different varieties of enameled wire

1) Acetal enameled wire

Acetal enameled wire is one of the earliest varieties in the world, and it was also successfully studied in my country in the 1960s. Although the enameled wire has a low temperature resistance rating), it has been widely used in oil-immersed transformers due to its excellent high-temperature hydrolysis resistance. This feature has been notarized by countries all over the world. Aldehyde enameled flat wire is used to make transposition wires, which are used in large transformers.

2) Polyester enameled wire

Due to the poor thermal shock resistance of the polyester enameled wire and easy hydrolysis under high temperature and high humidity conditions, polyester enameled wire as a single coating was no longer produced in West Germany and the United States in the late 1970s, but it is still in Japan, China and Southeast Asia. Mass production and use.

3) Polyurethane enameled wire

Polyurethane enameled wire paint is widely used in electronics, electrical appliances and other fields because of its direct solderability, high-frequency resistance and dyeability. At present, foreign countries are paying attention to improving the heat resistance level of polyurethane enameled wire without affecting its direct welding performance.

4) Polyesterimide enameled wire

Due to the improvement of heat resistance by modifying polyester with imine, the amount of polyester imine enameled wire in the world has risen sharply since the 1970s. At the same time, direct-weldable polyester imide enameled wires have been developed successively, which have been widely used as windings for small motors, simplifying the welding process and reducing the cost of motor manufacturing.

Copyright Xinyu Electrical Material Co., Ltd. has a variety of magnet wire products, enameled flat aluminum wire and other varieties, welcome to visit our official website.

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