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BAOC-250TA Copper Wire Intermediate Drawing Machine with Continuous Annealing – Top China Suppliers & Factory
Product Description
Equipment Composition
- 1. TH250-2000A fire extinguisher 1 set
- 2. Annealing electrical control system (DC60V DC2000A) 1 set
- 3. Annealing solution water pump (3KW)+25 square plate exchanger+water tank (customer provided) 1 set
- 4. 1 set of connecting wires, signal wires, control wires, and copper bars (excluding power supply incoming wires) between the electrical cabinet and equipment 1 set
- 5. One set of 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.
| 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 Usage Category | Parameter Item | Requirement Specifications |
|---|---|---|
| Steam generator water | Hardness | Soft water (deionized water) |
| PH value | 7～8 | |
| Traffic | 20 L/min | |
| Cooling fluid water for the fire extinguisher | Work pressure | 0.2-0.4 MPa |
| Hardness | max 12 dH | |
| PH value | 7～8 | |
| Traffic | 200 L/min | |
| Cooling fluid water (continued) | Work pressure | 0.2-0.4 MPa |
| Concentration of drawing solution | ~0.5% | |
| Temperature limit | Temperature | ≤30 ℃ |
|
Cooling water for heat exchanger (Used when distributing heat exchangers) |
Traffic | 200 L/min |
| Work pressure | 0.3-0.4 MPa | |
| Temperature | ≤25 ℃ | |
| Hardness | max 12 dH | |
| Use water inside the annealing contact ring | Traffic | 60 L/min |
| Work pressure | 0.2-0.4 MPa | |
| Temperature | ≤25 ℃ | |
| Hardness | Soft water (deionized water) |
Requirements for annealing compressed air:
| Parameter Item | Requirement Specifications |
|---|---|
| Work Pressure | 0.6～0.8 Mpa |
| Fluctuation Value | ±0.02 Mpa |
| Dew Point | -25 ℃ |
| Traffic | 200 L/min |
Frequently Asked Questions (FAQ)
Q1: What is the primary annealing principle used in this equipment?
A1: The machine utilizes the wire contact short-circuit annealing principle. By optimally extending the preheating, annealing, and cooling lengths, it enhances copper wire elongation and increases production speeds.
Q2: How does the system prevent copper wire slippage during production?
A2: The contact annealing wheel features a specialized square structure. This increases the wire wrapping angle, preventing slippage and reducing winding tension to protect the wire surface quality.
Q3: What are the water quality requirements for the steam generator?
A3: The steam generator requires soft/deionized water with a PH level of 7 to 8, a flow rate of 20 L/min, and a working pressure range of 0.2 to 0.4 MPa.
Q4: What is the purpose of the 0.8% speed difference between the inlet and outlet wheels?
A4: The outlet wheel runs 0.8% faster than the inlet wheel to compensate for thermal expansion and contraction caused by temperature differences, effectively preventing the wire diameter from thinning.
Q5: What are the requirements for the compressed air supply?
A5: The system requires a steady compressed air supply with a working pressure of 0.6 to 0.8 Mpa, fluctuations within ±0.02 Mpa, a dew point of -25 ℃, and a flow rate of 200 L/min.