Enameled round aluminum wire
The enameled round aluminum wire produced by our company has a smooth and bright appearance and no scratches on the lacquer surface. The material of the enamelled aluminum wire primer is polyurethane or Polyamideimide. The topcoat is made of polyamideimide, which has high heat resistance, good solvent resistance and refrigerant resistance, and its long-term use temperature can reach above 220 °C.

enameled round aluminum wire
Diameter Range (mm): 0.20-8.0mm
Heat resistance rating (℃): 130, 155, 180, 200, 220
Standard: IEC, NEMA, GB, JIS
Color: natural color, red, blue, green
Package: PT-25 PT-30 PT-60 PT-90 PT-200,PT-270, wooden bobbin and according to customer requirements.
Polyamideimide lacquer is a comprehensive lacquer in enameled aluminum wire lacquer, with high heat resistance, mechanical properties, refrigerant resistance and chemical resistance. The paint is currently mainly used for its unique properties, and is widely used as a top coat for composite coated enameled aluminum wires, improving the heat resistance of the composite wire and reducing the cost.
Composite coated enameled round aluminum wire has the following advantages over single coated enameled wire:
1 . Meet special use requirements, such as self-adhesive enameled wire for complex non-framework forming, and refrigerant-resistant enameled wire for refrigerators and air conditioner compressors, etc., which can be satisfied by composite coating structure;
2 . Through the compounding of various insulating layers, the characteristics are complemented and shortened, and the performance is improved and improved to meet the use requirements. For example, the polyester/nylon composite coated enameled wire improves thermal shock resistance and winding performance, and is suitable for the hot dipping process. Used for motor windings that are transiently overheated due to overload;
3 . It can reduce the cost of some enameled wires, such as polyesterimide and polyamideimide composite coated enameled wire instead of single-coated polyamideimide enameled wire, which can greatly reduce the cost.

enameled round aluminum wire
Enameled round aluminum wire is widely used, mainly for motors, electrical appliances, instruments, transformers, etc.
The enameled round aluminum wire we produce has strict inspection and measurement standards as follows:
After the product is manufactured, we need to verify that the appearance, size and performance meet the technical standards of the product and the requirements of the user's technical agreement. The enameled round aluminum wire inspection includes: inspection of the appearance and dimensions, and testing of the performance. Among the properties are: mechanical properties, chemical properties, thermal properties and electrical properties. Now we mainly explain the appearance and size.
Appearance should be smooth, uniform color, no particles, no oxidation, hair, yin and yang, black spots, paint stripping and other defects affecting performance, The cable should be wound smoothly and tightly around the online disk, without pressing the wire, and freely retractable. There are many factors affecting the surface, which are related to raw materials, equipment, processes, and environmental factors.
2.1 Enameled round aluminum wire size includes: external dimensions (outer diameter) D, conductor diameter d, conductor deviation △d, conductor out-of-roundness f, film thickness t.
2.1.1 The outer diameter is the diameter measured after the guide body is coated with an insulating paint film.
2.1.2 Conductor diameter refers to the diameter of the wire after the insulation layer is removed.
2.1.3 Conductor deviation is the difference between the measured value and the nominal value of the guide body diameter.
2.1.4 Out-of-roundness (f) is the maximum difference between the maximum and minimum readings measured on each section of the guide.

enameled round aluminum wire
2.2 Measurement methods
2.2.1 Measuring tool: micrometer micrometer, accuracy O.002mm
When the enameled round aluminum wire d<0.100mm, the measuring force is 0.1~1.0N, and when d≥0.100mm, the measuring force is 1~8N;
2.2.2 outer diameter (round line) When the nominal diameter of the conductor is d ≤ 0.200 mm, the outer diameter is measured once at each of the three positions separated by 1 m, and three measured values are recorded, and the average value is taken as the outer diameter. When the nominal diameter of the conductor is d>0.200mm, at each of the two positions separated by 1m, each position is measured three times along the circumference of the line, and six measured values are recorded, and the average value is taken as the outer path.
2.2.3 conductor size (round wire) When the nominal diameter of the conductor is d ≤ 0.200 mm, the diameter of the conductor is removed by any method that does not damage the conductor at three positions separated by 1 m each: the average value of the conductor is taken as the conductor diameter. When the conductor nominal diameter d>O. At 200 mm, the insulation is removed by any method that does not damage the conductor, and is measured at three positions equally divided along the circumference of the conductor, and the average of the three measured values is taken as the conductor diameter.

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