Tension Annealing
Tension Annealing Line
Purpose
This equipment is dedicated to removing residual stress, stains and contaminants from the strip surface.
Basic data
- Material: Copper and copper alloy strip
- Strip thickness: 0.1 - 0.8 mm
- Strip width: 300 - 650 mm
- Coil weight: max 6,500 kg
- Coil I.D.: 400 mm
- Coil O.D.: max 1,350 mm
- Furnace temperature: 300 - 550º C
- Overall dimensions: 36,000 (L) x 8,500 (W) x 5,600 (H) mm
Line specification
- Line speed: max 60 mpm
- Strip temperature: max 550º C
- Unit tension: Stress release 0.1 - 2.0 kg/mm²
Machine description
- Strip is pulled from pay-off reel into furnace through pinch roll and bridle roll
- Strip passes through pickling, buffing, cold rinsing and drying processes
- At end of process, strip on tension reel is ejected onto coil car
Tension Annealing Line
Main Features
Pickling
Pickling
- Removes foreign matter on strip surface with sulfuric acid
- Prevents corrosion with equipment’s stainless steel interior
Furnace
Furnace
- Seals heat by applying synthetic wool at strip entry and exit
Buffing
Buffing
- Minimizes damage by using a specific brush
Dryer
Dryer
- Conserves energy (prevents heat loss) with a recycling system
Tension Reel and Belt Wrapper
Tension Reel and Belt Wrapper
- Reduces labor cost with a one-stop process from pay-off reel to tension reel
- Automatically controls working speed in furnace section by using auto-detection
| No. | Item | Specifications |
|---|---|---|
| 1 | Pay-off reel | Drive: AC vector motor Back tension: 50 - 600 kg |
| 2 | Pinch roll | Tension: 350 kg Speed: max 16 mpm |
| 3 | Pad brake | Pad material: wool |
| 4 | No. 1 bridle roll | Drive: AC vector motor Bridle roll: P350 x 800(L) mm |
| 5 | Furnace | Size: 2.5 x 16.0 x 2.0(H) m |
| 6 | Pickling | Size: 0.95 x 4.3 m Distance between roll: 3.0 m |
| 7 | Buffing | Size: 1.5 x 1.45 x 1.35(H) m |
| 8 | Cold rinse | Size: 0.95 x 2.0 x 1.2(H) m |
| 9 | Dryer | Size: 1.0 x 1.2 x 2.0(H) m |
| 10 | CPC / Shear | CPC roll: P350 x 800(L) mm Shear cutting force: 15.7 ton |
| 11 | Tension reel / Belt wrapper |
Type: 4-Segment wedge type Drive: AC vector motor |
| 12 | Exit coil car | Loading weight: max 7000 kg |