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Enameled Copper and Aluminum Flat Wire - Quality Products from China Suppliers and Factory
Product Information
Enameled Flat wire is made of oxygen free copper or electrical aluminum rod, which are drawn or extruded by the specification mould. They are mainly used in the windings of electrical equipment such as transformer, reactor and etc. According to the different insulating paint, it can be divided into 6 categories:
- 120 Polyvinyl acetal / Self adhesive polyvinyl acetal enameled copper (aluminum) flat wires — QQ/QQN
- 130 Polyester enameled flat wires — QZ
- 155 Modified polyester enameled flat wires — QZG
- 180 Polyester imide enameled copper (aluminum) flat wires — QZY
- 200 Polyester imide / Polyamide-imide composite enameled copper (aluminum) flat wires — Q(ZY/XY)
- 220 Polyamide imide enameled copper (aluminum) wires — QXY
Production Scope
Conductor Thickness (a)
0.80 – 5.60 mm
Conductor Width (b)
2.00 – 16.00 mm
Conductor Width Ratio
20 : 1
Conductor Material
⚡ Soft Copper Flat Wire — Complies with GB5584.2-2009. At 20℃, resistivity ≤ 0.017241 Ω·mm²/m. Suitable for different mechanical strength requirements.
⚡ Soft Aluminum Flat Wire — Complies with GB5584.3-2009. At 20℃, resistivity ≤ 0.02801 Ω·mm²/m. Thin film (0.06–0.11 mm) or thick film (0.12–0.17 mm) options available based on insulation requirements.
The thickness of hot adhesive enameled flat wire self-adhesive layer is generally from 0.03 to 0.06 mm. Our company monitors the thickness with a dielectric loss meter.
Detail Shot
Product Description
| Enameled Wire Category | Thermal Level | Performance | Standard | Experimental Basis |
|---|---|---|---|---|
|
QQ/QQN Polyvinyl acetal / Self adhesive acetal |
120 | Good performance of resistance to transformer oil and scratch. Excellent flexibility & adhesion, and good hydrolysis resistance. In addition to the properties of acetal wire, the product adhesive strength can be reinforced by heating. | GB/T 7095.2-2008 IEC60317-18:2004 GB/T 6758.1-2007 IEC 60851-5 |
GB/T 4074 IEC 60851 GB/T 4074 IEC 60851 |
|
QZ Polyester |
130 | High mechanical strength, good scratch resistance. Good electrical performance. | GB/T 7095.2-2008 IEC 60317-11:2005 |
GB/T 4074 IEC 60851 |
|
QZ(G) Modified polyester |
155 | Good shock resistance. High mechanical strength, good electrical & solvent resistance. | GB/T 7095.3-2008 IEC60317-16:1990 |
GB/T 4074 IEC 60851 |
|
QZY Polyester imide |
180 | High heat resistance, good chemical solvent resistance, and heat shock resistance. | GB/T 7095.4-2008 IEC60317-28:1990 |
GB/T 4074 IEC 60851 |
|
Q(ZY/XY) Polyester imide / Polyamide-imide composite layer |
200 | Good comprehensive properties, such as refrigerant resistance, solvent resistance and radiation resistance. | GB/T 7095.6-2008 IEC60317-29:1990 |
GB/T 4074 IEC 60851 |
|
QXY Polyamide imide |
220 | Good chemical solvent resistance. | GB/T 7095.1 | GB/T 4074 IEC 60851 |
Technical Parameter
📌 Mechanical Strength Grades: C1 Rp0.2 (>100~180) N/mm² | C2 Rp0.2 (>180~220) N/mm² | C3 Rp0.2 (>220~260) N/mm²
🔧 We can manufacture according to technical specifications provided by customers.
| Model | Name | Production Specification Scope |
|---|---|---|
| QQB | 120 acetal / self adhesive acetal enameled flat wire | a: 0.80–5.60 mm b: 2.00–16.00 mm |
| QZB | 130 polyester enameled flat wire | a: 0.80–5.60 mm b: 2.00–16.00 mm |
| QZ(G)B | 155 modified polyester enameled flat wire | a: 0.80–5.60 mm b: 2.00–16.00 mm |
| QZYB | 180 polyester imide enameled flat wire | a: 0.80–5.60 mm b: 2.00–16.00 mm |
| QYB | 220 polyamide imide enameled flat wire | a: 0.80–5.60 mm b: 2.00–16.00 mm |
| Q(ZY/XY)B | 200 polyester imide / polyamide-imide enameled flat wire | a: 0.80–5.60 mm b: 2.00–16.00 mm |
| QQBN | 120 self adhesive polyvinyl acetal enameled flat wire | a: 0.80–5.60 mm b: 2.00–16.00 mm |
| Paint Film | Paint Film Insulation Thickness: δ mm | |
|---|---|---|
| Grade 1 | 0.06 ≤ δ ≤ 0.11 | |
| Grade 2 | 0.12 ≤ δ ≤ 0.17 | |
| Paint Film | Min. Breakdown Voltage Value (Effective Value): V | |
|---|---|---|
| Room Temperature | High Temperature | |
| Grade 1 | 1000 | 750 |
| Grade 2 | 2000 | 1500 |
Frequently Asked Questions
What materials are used to make enameled flat wire?
Enameled flat wire is made from oxygen-free copper or electrical aluminum rod. The conductor is drawn or extruded through specification moulds to achieve precise dimensions for use in electrical equipment windings.
What are the main applications of enameled flat wire?
Enameled flat wire is primarily used in the windings of electrical equipment such as transformers, reactors, and other high-performance electromagnetic devices where precise conductor geometry and reliable insulation are required.
What is the available production scope for conductor dimensions?
The conductor thickness (a) ranges from 0.80 mm to 5.60 mm, the conductor width (b) ranges from 2.00 mm to 16.00 mm, and the maximum conductor width ratio is 20:1. Custom specifications can also be manufactured based on customer requirements.
What are the differences between Grade 1 and Grade 2 paint film insulation?
Grade 1 paint film has an insulation thickness of 0.06–0.11 mm with a minimum breakdown voltage of 1000V at room temperature and 750V at high temperature. Grade 2 has a thickness of 0.12–0.17 mm with a minimum breakdown voltage of 2000V at room temperature and 1500V at high temperature.
Which type of enameled flat wire offers the highest thermal resistance?
The Polyamide imide enameled flat wire (QXY/QYB) offers the highest thermal level at 220°C, providing excellent chemical solvent resistance and making it suitable for the most demanding high-temperature applications.
Can enameled flat wire be produced to custom technical specifications?
Yes. In addition to the standard production scope, we are able to manufacture enameled flat wire according to specific technical specifications and mechanical strength grades (C1, C2, C3) provided by customers to meet unique application requirements.