What Is Magnet Wire?

Answer 1

magnet wire An insulated wire used to manufacture coils or windings in electrical products. Also known as winding wire. Magnet wires must meet the requirements of multiple uses and manufacturing processes. The former includes its shape, specification, ability to work at high temperatures for short and long periods of time, as well as withstanding strong vibration and centrifugal force at high speeds in some occasions, resistance to corona and breakdown under high voltage, and chemical resistance in special atmospheres Corrosion, etc. The latter includes the requirements of stretching, bending and abrasion during winding and embedding, as well as swelling and erosion during dipping and drying. Magnet wires can be classified according to their basic composition, conductive core and electrical insulation. Generally, it is divided into enameled wire, wound wire, enameled wire and inorganic insulated wire according to the insulating material and manufacturing method used in the electrical insulating layer.

The conductor is coated with a corresponding lacquer solution, and then the solvent is volatilized and the lacquer film is solidified and cooled. Enameled wire can be divided into polyester enameled wire, polyesterimide enameled wire, polyamideimide enameled wire, polyimide enameled wire, polyesterimide/polyamideimide enameled wire, corona resistant enameled wire, and oily enameled wire according to the insulating varnish used. Paint, acetal paint, polyurethane enameled wire, etc. Sometimes it is also classified according to the particularity of its use, such as self-adhesive enameled wire, refrigerant resistant enameled wire, etc. The earliest enameled wire is oily enameled wire, made of tung oil. The paint film has poor abrasion resistance and cannot be directly used to make motor coils and windings. It needs to be covered with cotton yarn when used. Later, polyvinyl formal enameled wire came out, and its mechanical properties were greatly improved. It can be directly used in motor windings and is called high-strength enameled wire. With the development of weak current technology, self-adhesive enameled wires have emerged, which can obtain coils with better integrity without dipping and baking. But its mechanical strength is poor, and it can only be used in micro motors and small motors. In addition, in order to avoid the trouble of first removing the paint film during soldering, direct soldering enameled wire has been developed. The paint film can fall off by itself in the high-temperature tin bath, making the copper wire easy to solder. As the application of enameled wire is becoming more and more extensive, the requirements are becoming stricter, and composite enameled wire has been developed. The inner and outer paint films are composed of different polymer materials, such as polyesterimide/polyamideimide enameled wire.

An important variety in winding wires. In the early days, cotton yarn and silk, called yarn covered wire and silk covered wire, were used in motors and electrical appliances. Due to the large insulation thickness and low heat resistance, most of them have been replaced by enameled wires. Currently only used as high-frequency winding wire. In the large and medium-sized winding wires, when the heat resistance grade is higher and the mechanical strength is higher, glass fiber covered wires are also used, and they are made with appropriate adhesive paint. Paper-covered wire still occupies a considerable position in the wrapped wire, which is mainly used in oil-immersed Transformers. The oil-paper insulation formed at this time has excellent dielectric properties, low price, and long life. In recent years, the rapid development is the film wrapping wire, mainly polyester film and polyimide film wrapping wire. Recently, there is also a mica tape-coated polyesterimide film-coated rectangular copper wire used for wind power generation.

When the heat resistance rating exceeds the limit of organic materials, inorganic insulating paint is usually used. The existing inorganic insulated wires can be further divided into glass film wires, oxide film wires and ceramic wires. There are also combined wires, transposed wires, etc.

Answer 2

magnet wire An insulated wire used to manufacture coils or windings in electrical products. Also known as winding wire. Magnet wires must meet the requirements of multiple uses and manufacturing processes. The former includes its shape, specification, ability to work at high temperatures for short and long periods of time, as well as withstanding strong vibration and centrifugal force at high speeds in some occasions, resistance to corona and breakdown under high voltage, and chemical resistance in special atmospheres Corrosion, etc. The latter includes the requirements of stretching, bending and abrasion during winding and embedding, as well as swelling and erosion during dipping and drying. Magnet wires can be classified according to their basic composition, conductive core and electrical insulation. Generally, it is divided into enameled wire, wound wire, enameled wire and inorganic insulated wire according to the insulating material and manufacturing method used in the electrical insulating layer.

The conductor is coated with a corresponding lacquer solution, and then the solvent is volatilized and the lacquer film is solidified and cooled. Enameled wire can be divided into polyester enameled wire, polyesterimide enameled wire, polyamideimide enameled wire, polyimide enameled wire, polyesterimide/polyamideimide enameled wire, corona resistant enameled wire, and oily enameled wire according to the insulating varnish used. Paint, acetal paint, polyurethane enameled wire, etc. Sometimes it is also classified according to the particularity of its use, such as self-adhesive enameled wire, refrigerant resistant enameled wire, etc. The earliest enameled wire is oily enameled wire, made of tung oil. The paint film has poor abrasion resistance and cannot be directly used to make motor coils and windings. It needs to be covered with cotton yarn when used. Later, polyvinyl formal enameled wire came out, and its mechanical properties were greatly improved. It can be directly used in motor windings and is called high-strength enameled wire. With the development of weak current technology, self-adhesive enameled wires have emerged, which can obtain coils with better integrity without dipping and baking. But its mechanical strength is poor, and it can only be used in micro motors and small motors. In addition, in order to avoid the trouble of first removing the paint film during soldering, direct soldering enameled wire has been developed. The paint film can fall off by itself in the high-temperature tin bath, making the copper wire easy to solder. As the application of enameled wire is becoming more and more extensive, the requirements are becoming stricter, and composite enameled wire has been developed. The inner and outer paint films are composed of different polymer materials, such as polyesterimide/polyamideimide enameled wire.

An important variety in winding wires. In the early days, cotton yarn and silk, called yarn covered wire and silk covered wire, were used in motors and electrical appliances. Due to the large insulation thickness and low heat resistance, most of them have been replaced by enameled wires. Currently only used as high-frequency winding wire. In the large and medium-sized winding wires, when the heat resistance grade is higher and the mechanical strength is higher, glass fiber covered wires are also used, and they are made with appropriate adhesive paint. Paper-covered wire still occupies a considerable position in the wrapped wire, which is mainly used in oil-immersed Transformers. The oil-paper insulation formed at this time has excellent dielectric properties, low price, and long life. In recent years, the rapid development is the film wrapping wire, mainly polyester film and polyimide film wrapping wire. Recently, there is also a mica tape-coated polyesterimide film-coated rectangular copper wire used for wind power generation.

When the heat resistance rating exceeds the limit of organic materials, inorganic insulating paint is usually used. The existing inorganic insulated wires can be further divided into glass film wires, oxide film wires and ceramic wires. There are also combined wires, transposed wires, etc.

Answer 3

Magnet wire is a type of insulated copper or aluminum wire that is used in electrical applications where coils and winding are needed, such as in transformers, motors, and inductors. The thin insulation allows for close winding of the wire without short-circuiting, making it ideal for creating electromagnetic coils.