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0102030405
China BAOC-250TA Copper Wire Drawing Machine - Continuous Annealing Machine Suppliers & Factory
Product Description
Equipment Composition
- TH250-2000A fire extinguisher: 1 set
- Annealing electrical control system (DC60V DC2000A): 1 set
- Annealing solution water pump (3KW) + 25 square plate exchanger + water tank (customer provided): 1 set
- Connecting wires, signal wires, control wires, and copper bars: 1 set (between the electrical cabinet and equipment, excluding power supply incoming wires)
- Steam generator (380V 9KW): 1 set
Main Technical Parameters
By applying the principle of wire contact short-circuit annealing, the preheating length, annealing length, and cooling length are reasonably extended on the basis of previous methods to meet the requirements of copper wire annealing process, improve the elongation of copper wire after annealing, and increase the production speed of equipment. The annealing power supply is DC, and the annealing host adopts a closed structure. The wire passing part is equipped with a protective cover to ensure the safe operation of the equipment. The wire contact annealing wheel adopts a square structure, which increases the wire wrapping angle, effectively prevents wire sliding, and reduces the tension of subsequent wire winding, improving the quality and elongation of the copper wire surface. The fire extinguisher consists of a conductive system, an oxidation protection system, a cooling system, a drying system, an electrical system, etc.
Product Parameters
| Machine type | BAOC-500TB-2 | BAOC-450T | BAOC-400T | BAOC-350T | BAOC-270T | BAOC-250TA (Square) | BAOC-250TB (Triangle) |
|---|---|---|---|---|---|---|---|
| Finished wire diameter (mm) | (Φ3.5-φ1.2)*2 | φ4.5-φ1.2 | φ4.0-φ1.2 | φ2.8-φ0.8 | φ2.0-φ0.6 | φ0.4-φ1.6 | φ0.4-φ1.2mm |
| Drawing line speed (m/s) | 25 | 25 | 22 | 20 | 20 | 25 | 25 |
| Annealing voltage current | DC65V DC1000A | DC65V DC6000A | DC65V DC5500A | DC60V DC2500A | DC60V DC2000A | DC60V DC2000A | DC60V DC1500A |
| Nominal diameter of contact wheel (mm) | 450 | 450 | 400 | 350 | 270 | 250 | 250 |
| Section (mm) | 3000 | 2600 | 2200 | 1800 | 2150 | 1500 | 1250 |
| Dimension of preheating section (mm) | 10000-1500 | 10000-1300 | 8000-1100 | 10000 | 8000 | 2600 | 2400 |
| The length of the cooling section (mm) | 4500-6800 | 4500-6000 | 5000 | 4500 | 3500 | 1800 | 1700 |
Structure Description
1. Machine base part
The machine base is made of A3 steel plate welded together, and the matching parts are processed by precision milling machines to ensure the precision of the machine base.
2. Transmission and electrode rotation parts
The power of the fire extinguisher is transmitted and supplied by the fixed speed wheel of the main engine. The electrode wheel is driven by a flat belt, and the belt tension is adjusted by a pressure wheel. The inlet and outlet wheels are single-layer, and the outlet speed is 0.8% faster than the inlet speed to compensate for the speed difference caused by the temperature difference between the inlet and outlet lines and prevent the wire diameter from becoming thin.
3. Carbon brush and electrode parts
High density carbon brushes are used to increase the lifespan. The electrode wheel and shaft are made of brass, the collector ring is made of phosphor bronze, and the guide wheel ring is made of pure nickel tape, which has good conductivity and long lifespan. The electrode and the machine base are insulated with fiberglass adhesive wood.
4. Cooling section
Composed of 1 3HP electric pump, cooler, coolant container, and external water cooling tower (to be provided by the user).
5. Electrical components
The electrical part consists of an annealing control box, annealing transformer, electrode wheel section, and flat copper bars (to be provided by the user).
Customer Provided Checklist
Requirements for annealing water:
| Water Application Area | Parameters | Standard Specification |
|---|---|---|
| Steam generator water | Hardness | Soft water (deionized water) |
| PH value | 7～8 | |
| Traffic / Flow Rate | 20 L/min | |
| Cooling fluid water for the fire extinguisher | Hardness | max 12 dH |
| PH value | 7～8 | |
| Traffic / Flow Rate | 200 L/min | |
| Work pressure | 0.2-0.4 MPa | |
| Concentration of drawing solution | ~0.5% | |
| Cooling fluid water for the fire extinguisher (Cont.) | Temperature | ≤30 ℃ |
| Cooling water for heat exchanger (Used when distributing heat exchangers) | Traffic / Flow Rate | 200 L/min |
| Work pressure | 0.3-0.4 MPa | |
| Temperature | ≤25 ℃ | |
| Hardness | max 12 dH | |
| Use water inside the annealing contact ring | Traffic / Flow Rate | 60 L/min |
| Work pressure | 0.2-0.4 MPa | |
| Temperature | ≤25 ℃ | |
| Hardness | Soft water (deionized water) |
Requirements for annealing compressed air:
| Parameter Item | Required Value |
|---|---|
| Work Pressure | 0.6～0.8 Mpa |
| Fluctuation Value | ±0.02 Mpa |
| Point (Dew Point) | -25 ℃ |
| Traffic / Flow Rate | 200 L/min |
Frequently Asked Questions (FAQ)
What is the working principle of the annealing system?
The system applies the wire contact short-circuit annealing principle. By reasonably extending the preheating, annealing, and cooling lengths, it optimizes the copper wire annealing process, increases production speed, and enhances the elongation rate of the copper wire.
How does the design prevent the wire diameter from becoming thin?
The outlet speed of the electrode wheel is configured to run 0.8% faster than the inlet speed. This speed offset compensates for thermal expansion variations caused by temperature differences, maintaining uniform wire diameter.
What kind of water quality is required for the steam generator and contact ring?
Both the steam generator and the annealing contact ring require soft water (deionized water) to prevent scaling and ensure long-term, stable operational performance.
What are the specifications for the compressed air supply?
The system requires a working pressure of 0.6～0.8 Mpa with a fluctuation limit of ±0.02 Mpa, a dew point of -25 ℃, and a continuous flow rate of 200 L/min.
What materials are used for the electrode components to ensure durability?
The electrode wheel and shaft are manufactured from premium brass, the collector ring is made of phosphor bronze, and the guide wheel ring uses pure nickel tape to achieve high conductivity and extended operational lifespans.