Solderable Polyesterimide Enameled Round Copper Wire, Class 180
Grade 180 solderable polyesterimide enameled round copper wire is a high-performance wire material, which is widely used in various electronic and electrical equipments for its unique insulation structure and excellent mechanical and electrical properties. Polyesterimide resin is used as the insulating layer, which is coated on the surface of copper conductor through special technology to form a uniform and dense insulating layer. The insulating layer not only has excellent thermal stability and mechanical strength, but also has direct solderability, which facilitates soldering without mechanical or chemical removal of varnish.
Second, material properties
1.High heat resistance:it has excellent heat resistance and can work stably for a long time at a high temperature of 180℃ without significant performance degradation. Make the enameled wire is particularly suitable for applications in high temperature environments.
2.excellent electrical properties:has good electrical insulation properties, including high resistivity, low dielectric constant and low dielectric loss, can effectively prevent current leakage and electrical short circuit, to ensure the safe and reliable operation of electrical equipment.
3.High mechanical strength: high mechanical strength, able to resist a certain degree of stretching, bending and abrasion, to ensure the stability and reliability of the wire in the process of use.
4.Weldability:in the welding process, the insulation layer can be melted at a certain temperature and fused with the welding point, without removing the insulation layer can be directly welded, simplifying the production process and improving production efficiency.
5.chemical corrosion resistance:excellent chemical corrosion resistance, able to resist the erosion of a variety of chemical substances, to maintain the long-term stability and reliability of the wire.
6.good stability:in different temperature and humidity conditions, polyesterimide enameled wire size change is small, has good dimensional stability, can meet the requirements of precision electronic equipment.
7.Environmental protection: polyesterimide resin is an environmentally friendly material, non-toxic and harmless, in line with modern environmental requirements.
Solderability
3.1 General
The temperature of the solder bath should be (470±5)℃. The surface of the tinned wire shall be smooth and free from holes and varnish residues.
47.117.2 Nominal conductor diameter less than or equal to 0.100 mm.
The solder bath temperature shall be (470±5)°C. The maximum immersion time shall be 3 seconds. The maximum immersion time shall be 3 seconds.
The surface of the tinned wire shall be smooth and free from holes and enamel residues.
47.217.3 Nominal Conductor Diameter Greater than 0.100 mm
The solder bath temperature shall be (470±-5)° C. The maximum immersion time shall be 3 seconds. The maximum immersion time
（The maximum immersion time (in seconds) shall be a multiple of the nominal conductor diameter in millimeters, to a minimum of 3 seconds.
| Grade 1 | Grade 2 |
| 8 s/mm | 12 s/mm |
The surface of the tinned wire should be smooth and free of holes and enamel residues.
Abrasion resistance
(Nominal conductor diameters from 0.250 mm to 1.600 mm inclusive)
Wires shall meet the requirements in Table 1.
For intermediate nominal conductor diameters, the next larger nominal conductor diameter value shall be taken.
Table 1-Resistance to abrasion
|
Nominal conductor diameter mm |
Grade 1 | Grade 2 | ||
| Minimum average force to failure
N |
Minimum force to
failure of each measurement N |
Minimum average force to failure
N |
Minimum force to
failure of each measurement N |
|
| 0,250
0,280 0,315 0,355 0,400
0,450 0,500 0,560 0,630 0,710
0,800 0,900 1,000 1,120 1,250
1,400 1,600 |
2,85
3,10 3,35 3,60 3,85
4,15 4,45 4,75 5,10 5,45
5,85 6,30 6,75 7,35 7,90
8,50 9,20 |
2,45
2,60 2,80 3,05 3,25
3,50 3,75 4,05 4,35 4,65
4,95 5,35 5,75 6,20 6,70
7,20 7,80 |
4,70
5,05 5,45 5,85 6,25
6,75 7,20 7,70 8,25 8,85
9,50 10,2 10,9 11,6 12,5
13,3 14,3 |
4,00
4,30 4,60 4,95 5,30
5,70 6,10 6,50 7,00 7,50
8,05 8,60 9,20 9,80 10,5
11,3 12,1 |
Production process
Copper conductor drawing:through the drawing process, the copper material is drawn into a copper conductor that meets the requirements.
insulation coating:polyesterimide resin is coated on the surface of copper conductor by spraying, impregnation, etc. to form a uniform and dense insulating layer.
Baking and curing: The copper conductor coated with insulation layer is baked at high temperature to cure the insulation layer and form a stable insulating structure.
Winding and packaging: The cured enameled wire is wound and packaged to meet the needs of different applications.
Areas of application:
Motors and transformers: commonly used in the manufacture of high-temperature motors, which can operate under high temperature conditions and have good insulation and welding properties.
Electronic equipment: They can provide good electrical insulation and conductivity in high temperature environments and are suitable for various high-temperature electronic applications.
Automotive manufacturing: used in automotive electronic systems to ensure the reliability and durability of electrical systems under high temperature conditions.
Power tools: such as electric drills, grinders, etc. need to withstand high loads and high temperatures when in use, and provide stable and reliable electrical connections.
Summarize
Class 180 solderable polyesterimide enameled round copper wire has an important position in the field of electronic and electrical equipment due to its excellent performance and wide range of applications. Its high heat resistance, self-melting direct solderability, excellent electrical and mechanical properties make it an ideal wire material. At the same time, with the increasing market demand and environmental awareness, 180 grade solderable polyesterimide enameled round copper wire will have a broader development prospect.