Introduction Of Aluminium Magnet Wire


    aluminium Magnet wire or enameled copper wire is a wire coated with a thin layer of lacquer (lacquer) insulation to prevent short circuits on the surface of the wire when it is wound into a coil. When current flows through the coil, magnetic flux is generated. Aluminum enameled wire and copper enameled wire are mainly used to manufacture motors, electromagnets, transformers and inductors. In order to facilitate the manufacture of inductive components such as transformers and inductors, most of these wires can be welded.

    Like other wires, aluminum and copper enameled wires are classified by diameter (AWG number or SWG) or area (square millimeters), temperature class, and insulation class.

    The breakdown voltage of aluminum enameled wire or copper enameled wire depends on the thickness of the coating layer. The thickness of the coating layer can be divided into level 1, level 2, and level 3. The higher the grade, the thicker the insulation and the higher the breakdown voltage.

    The temperature rating indicates the temperature of the wire when its service life is 20,000 hours. At lower temperatures, the service life of the wires is longer (approximately 2 times for every 10 °C decrease in temperature). Common temperature classes are 105°C, 130°C, 155°C, 180°C and 220°C.

    Advantages of enameled aluminum/enameled copper round flat winding

    size CCA wire

    One of the main characteristics that make enameled aluminum wire and enameled copper wire suitable for a wide range of applications is the thin enameled insulation layer. Transformers, motors, and generators are all machines based on coils. A coil is a device that uses a large coil to generate a magnetic field and current. The smaller these devices are, the more powerful they are. Because enameled aluminum enameled wire and enameled copper enameled wire are insulated by a thin layer of enameled, instead of other types of thicker insulating materials, such as paper, glass fiber, mica, etc. Since the enameled aluminum wire or enameled copper wire occupies less space in the formation of the coil, it produces a more effective and more compact coil with higher efficiency.

    Enameled aluminum winding wires and enameled copper winding wires are widely used in electrical equipment due to their electrical conductivity. Aluminum enameled wire and copper enameled wire are used to transmit current. In particular, the resistance of enameled copper enameled wire is almost lower than that of any other insulated wire. This means that a generator that uses enameled copper wire will generate more electricity than a generator that uses most other materials. Motor coils made of enameled copper winding wire will produce more movement. Transformers made of enameled aluminum wire or enameled copper wire will lose less energy.

    The third feature of enameled copper wire/enameled aluminum wire that makes their use in these devices so attractive is its corrosion resistance. Enameled aluminum and copper enameled wires are the materials of choice for circuits because they can be used for a long time.

    Due to the inherent differences in conductor materials, the mechanical, electrical and chemical properties of enameled aluminum enameled wires are different from those of copper enameled wires. These differences are reflected in certain test procedures and/or performance requirements for aluminum enameled wires, such as elongation, adhesion and flexibility, thermal shock, scratch resistance, continuity, and heat resistance.

    The advantage of aluminum enameled wire is that it is light and we are right. This product is widely used in electric tools, ballasts, automotive electronics, refrigerator air-conditioning compressor motors, televisions, electric stoves, microwave ovens, various transformers, and other types of electronic coil motors and electrical appliances.

    Enameled aluminum enameled wire is sometimes used in large transformers and motors, but due to its low conductivity, the cross-sectional area of ‚Äč‚Äčaluminum enameled wire must be 1.6 times that of copper wire to achieve comparable DC resistance. Smaller diameter enameled wires usually have a circular cross-section. The thicker aluminum magnet wire is usually square or rectangular (with rounded corners) to make more efficient use of the available winding space.

    Modern enameled aluminum enameled wires or enameled copper enameled wires usually use one to three polymer film insulating layers, usually with two different compositions, to provide a tough, continuous insulating layer. Magnet wire insulation film uses (in increasing order of temperature range) polyvinyl formal or Formvar (PVF), polyurethane, polyamide (PUW), polyester (PEW), polyester-polyimide (EIW), poly Amide-polyimide (or amide-imide) (AI-EIW) and polyimide (AIW). Polyimide insulated enameled wire can operate at temperatures up to 250°C. The insulation of thicker square or enameled rectangular aluminum or copper enameled wires is usually reinforced by wrapping with high temperature polyimide or glass fiber tape, and the finished winding is usually vacuum impregnated with insulating varnish to improve the insulation strength and long-term reliability of the winding.

    Other types of insulated conductors, such as glass fiber insulated copper/aluminum enameled round flat wire, nomex insulated copper/aluminum round flat wire, kraft paper insulated copper/aluminum round flat wire, mica insulated copper/aluminum round flat wire, polyimide insulation Copper/aluminum round flat wires and polyester film insulated copper/aluminum round flat wires are also widely used in various applications around the world, such as motors, transformers and reactors.

    Various applications of enameled aluminum wire and copper enameled wire
    Double-coated enameled aluminum wire/copper wire is suitable for all "H+" (220°C and 200°C) level and above applications, such as dry-type transformers, stator winding split and integrated HP motors, DC magnetic fields and electric Pivot windings, motors are suitable for sealing grades, hand tools, chemical industries, furnaces and high torque, continuous ratings, all household appliances, machine motors, automotive electrical, and coil applications painted or unpainted. Sealed enameled aluminum wire or enameled copper wire has excellent applicability to refrigeration and air conditioning systems.

    Single-coated wires are suitable for all "H", "F" and "B" class applications, such as dry-type transformers, stator winding fractional H.P. motors, DC magnetic fields, and armature windings. Polyester-coated wires have very good chemical resistance and are compatible with all common dipping varnishes, including high-temperature modified phenolic polyester and other varnishes that do not contain reactive solvents.