1. High-precision 2. Low residual stress 3. Automatic threading
This new type of leveler line is developed for high-precision copper strip production. It uses our innovation technology with completely independent intellectual property rights. A prepositive stretch-bend-levelling unit is combined with a 23-roll leveler, in which case 4 segments of tension and 2 segments of elongation could be controlled separately.
• The shape of copper strip could be rectified effectively by reasonable distributing 2 segments of elongation. In addition, 23-roll leveler working with smaller elongation will be beneficial to eliminate residual stress and to extend roll life-span.
• High-precision and low residual stress, the quality of copper strips rectified by this type of leveler line could meet the needs of electronic industry.
Technological parameter:1. Material:
Copper Alloy | C10200, C 11000, C11100, C26000, C27000, C19025, C19400, C19210, D 51900, C52100, C70250, C75210, C77010 |
Material Conditions | cold rolled |
Yield Point | ≤750N/mm² |
Material Thickness | 0.08~1.0mm |
Material Width | 200~400mm |
Incoming Flatness | ≤150I |
2. Line:
Coil Weight | 6000Kg |
Coil Inside Diameter | 500mm |
Coil Outside Diameter | Max. 1400mm |
Line Speed | 150m/min(for the thickness ≥0.5mm),75m/min(for the thickness <0.5mm) |
Threading Speed | 5 – 10 m/min |
Incoming Flatness | ≤150I |
Decoiler Tension | 80~1100Kg |
Recoiler Tension | Max. 1400Kg |
Leveler Tension | Max. 10000Kg |
Line Elongation Rate | 0~3% |
Product Flatness | ≤5I |
bending leveler
