Product: C-Coil annealing device working with protective gas
This C-Coil annealing device works with protective gas.
The protective gas annealing has the advantage that it is a clean process. No finishing work is necessary.
After removing the coils from the annealing station, the ends of the C-coils are about 80°C or less. This depends on the cooling time.
2. Technical Data
CU strands: 28–40 mm x 6–10 mm
Inside bend radius (90°): 40 – 80 mm
Max. length of the bent arm: 1100 mm
Capacity: 2 bar ends / annealing unit
Cycle time: 4 to 5 minutes
Annealing temperature: max. 800°C
3. Scope of supply
The C-Coil annealing device consists of:
- 1 or 2 pcs. annealing device including inductors (controlled by Siemens S7)
- 1 or 2 pcs. medium frequency generator with control interface
- 1 or 2 pcs. cooling unit for inductor
- 1 or 2 pcs. water cooling system
To be supplied by the customer:
Inert gas (CO² or equivalent)
Two pieces of copper bars (c-shape) are inserted into the annealing device. When they are in the correct position – optical display – the annealing process begins. During the whole process, CO2 is supplied.
After shut down of the MFG-system, the bars are cooled down to a temperature of approx. 80°C with the aid of a coolant (elapsed time adjustable). After the end of the cooling down (optical display) the bars can be taken out of the device. The correct heating period and power must be established through preliminary tests.