The production of enameled wire is to coat a layer of insulating paint on a high-purity, high-conductivity conductor.
Namely: conductor + insulating paint = non-self-adhesive enameled wire
- Conductor + insulating paint + glue layer = self-adhesive enameled wire
2. The classification and structure of the wire:
1. According to the material of its conductor, it can be divided into:
Copper wire (Copper), aluminum wire (AL), copper clad aluminum wire (C.C.A),
2. According to the thickness of insulating paint:
* In terms of CNS (Chinese National Standard) or JIS (Japanese Industrial Standard) standards, the thickness of the insulating paint can be divided into 0, 1, 2, and 3 wires, of which 0 is the thickest wire. , The thinnest three kinds of wire insulation paint;
* In terms of IEC (International Electrotechnical Commission) standards, it is divided into Grade1, Grade2, and Grade3;
* In terms of NEMA (International Electrical Manufacturers Association) standards, it is divided into Single.Heary.Triple.Type1.Type2.Type3
* Because different customers have different requirements, different standard wires can be selected
Therefore, the judgment must be carried out according to the corresponding standard
* PEI (Polyimide Polyester Enameled Wire) ------ It is made of Polyester-imide resin as the main grease as the insulating film baking varnish on the conductor; its heat resistance grade is 180°C (H grade).
* UEW (Polyurethane Enameled Wire)------It is made of Polyester-thane resin as the main grease as the insulating film baking varnish on the conductor; its biggest characteristic is that it can be directly soldered and has a heat resistance rating of 130°C ( Grade B).
* PEW (Polyester Enameled Wire) ------It is made of Polyester resin as the main grease as the insulating film and baking varnish on the conductor; its heat resistance grade is 155℃ (F grade)
* AIW (Polyimide enameled wire) ------ Polyamide-imide resin as the main grease as the insulating film baking varnish on the conductor; its heat resistance grade is 200 ℃ (H+ grade)
3. According to the adhesion method, it can be divided into:
Alcohol wire---wire that is self-adhesive under the action of alcohol (e.g. Lock).
Hot air wire---wire that is self-bonded under the action of heat (e.g. PEI).
Dual-purpose thread --- self-adhesive thread under the action of alcohol or heat