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Enameled Copper and Aluminum Flat Wire Suppliers & Factory in China - High-Quality Electrical Winding Solutions
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
Width Ratio
20 : 1
Conductor Material
⚡ Soft Copper Flat Wire — Complies with GB5584.2-2009. At 20℃, resistivity ≤ 0.017241 Ω·mm²/m, according to different mechanical strength requirements.
⚡ Soft Aluminum Flat Wire — Complies with GB5584.3-2009. At 20℃, resistivity ≤ 0.02801 Ω·mm²/m. According to different insulation requirements, thin film (0.06–0.11 mm) or thick film (0.12–0.17 mm) can be chosen.
⚡ Hot Adhesive Self-Adhesive Layer — The thickness of the 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 |
|---|---|---|---|---|
|
Polyvinyl acetal / Self adhesive acetal QQ/QQN |
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 |
|
Polyester QZ |
130 | High mechanical strength, good scratch resistance. Good electrical performance. |
GB/T 7095.2-2008 IEC 60317-11:2005 |
GB/T 4074 IEC 60851 |
|
Modified polyester QZ(G) |
155 | Good shock resistance. High mechanical strength, good electrical & solvent resistance. |
GB/T 7095.3-2008 IEC60317-16:1990 |
GB/T 4074 IEC 60851 |
|
Polyester imide QZY |
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 |
|
Polyester imide / Polyamide-imide composite layer Q(ZY/XY) |
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 |
|
Polyamide imide QXY |
220 | Good chemical solvent resistance. | GB/T 7095.1 |
GB/T 4074 IEC 60851 |
Technical Parameter
🔸 Yield Strength Grades: C1: Rp0.2 (>100~180) N/mm² | C2: Rp0.2 (>180~220) N/mm² | C3: Rp0.2 (>220~260) N/mm²
✎ Custom Manufacturing: 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
Q What materials are used to make enameled flat wire?
Enameled flat wire is made of oxygen-free copper or electrical aluminum rod, which are drawn or extruded using specification moulds. These materials ensure excellent electrical conductivity and mechanical strength.
Q 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 that require reliable insulation and thermal stability.
Q What thermal grades are available for enameled flat wire?
Six thermal grades are available: 120 (Polyvinyl acetal / QQ/QQN), 130 (Polyester / QZ), 155 (Modified Polyester / QZG), 180 (Polyester imide / QZY), 200 (Composite / Q(ZY/XY)), and 220 (Polyamide imide / QXY), each suited for different temperature and application requirements.
Q What are the available conductor dimensions for enameled flat wire?
The conductor thickness (a) ranges from 0.80 mm to 5.60 mm, and the conductor width (b) ranges from 2.00 mm to 16.00 mm, with a maximum width-to-thickness ratio of 20:1. Custom specifications can be manufactured per customer requirements.
Q What is the difference between Grade 1 and Grade 2 paint film?
Grade 1 paint film has an insulation thickness of 0.06–0.11 mm with a minimum breakdown voltage of 1000 V at room temperature and 750 V at high temperature. Grade 2 film is thicker (0.12–0.17 mm) and provides higher breakdown voltages of 2000 V at room temperature and 1500 V at high temperature.
Q Can enameled flat wire be manufactured to custom specifications?
Yes. Custom manufacturing is available according to technical specifications provided by customers. Both copper and aluminum conductor options are offered, with a choice of insulation grades, film thickness, and thermal class to meet specific application needs.