The enameled wire industry is currently changing the traditional problems of low industry concentration and widespread low-end products. In the future, it will gradually increase R&D investment in the direction of high-end enameled wire and special enameled wire, and integrate and match with the transformation and upgrading of my country's manufacturing industry on the raw material side. With the adjustment of China's industrial structure, it will bring a new round of growth driving force to the enameled wire industry, and at the same time, product quality and industry concentration will also be further improved.

What is enameled wire

Enameled wire refers to a metal wire that uses insulating varnish as an insulating coating and is used to wind electromagnetic coils, also known as electromagnetic wire. It is a main variety of winding wire, which is composed of conductor and insulating layer. After the bare wire is annealed and softened, it is painted and baked many times. However, it is not easy to produce products that meet both standard requirements and customer requirements. It is affected by factors such as raw material quality, process parameters, production equipment, and the environment. Therefore, the quality characteristics of various enameled wires are different, but they all have Mechanical properties, chemical properties, electrical properties, thermal properties four major properties.

Enameled wire, a category of magnet wire, generally refers to the insulated wire used to manufacture coils or windings in electrical products. Also known as winding wire. Magnet wire must meet a variety of usage and manufacturing process requirements. The former includes its shape, specifications, short-term and long-term work at high temperature, and strong vibration and high-speed centrifugal force in some occasions, corona and breakdown resistance under high voltage, and chemical resistance under special atmosphere. Corrosion, etc.; the latter includes the requirements to withstand stretching, bending, and abrasion during winding and embedding, as well as swelling, erosion, etc. during dipping and drying. Magnet wire can be classified according to its basic composition, conductive core and electrical insulation layer. It is usually divided into enameled wire, wrapped wire, enameled wrapped wire and inorganic insulated wire according to the insulating material and manufacturing method used in the electrical insulation layer. The enameled wire is coated with a corresponding lacquer solution on the outside of the conductor, and then the solvent is volatilized, the paint film is solidified, and it is cooled. Enameled wires can be divided into polyester enameled wires, polyesterimide enameled wires, polyamideimide enameled wires, polyimide enameled wires, polyesterimide/polyamideimide enameled wires, corona-resistant enameled wires, and oily enameled wires according to the insulating varnish used. Paint, acetal paint, polyurethane enameled wire, etc.

Types of enameled wire

1. According to the insulation material

Acetal enameled wire

Polyester enameled wire

Polyurethane enameled wire

Modified polyester enameled wire

Polyesterimide enameled wire

Polyesterimide/polyamideimide enameled wire

Polyimide enameled wire

Second, according to the use of enameled wire

General-purpose enameled wire (ordinary wire): mainly used for winding wires in general motors, electrical appliances, instruments, transformers, etc., such as polyester enameled wires and modified polyester enameled wires.

Heat-resistant enameled wire: mainly used for winding wires of motors, electrical appliances, instruments, transformers, etc. working at 180°C and above, such as polyesterimide enameled wire, polyimide enameled wire, polyester enameled wire, polyesterimide / Polyamide-imide composite enameled wire.

Special-purpose enameled wire: refers to winding wires with certain quality characteristics required for specific occasions, such as: polyurethane enameled wire (direct solderability), self-adhesive enameled wire

Three, according to the conductor material

copper wire

aluminum wire

alloy wire

Four, according to the shape of the material

round line

flat wire

Hollow wire