Finishing mill group is the extra-heavy top cross 45° high-speed wire rod finishing mills designed for the high-speed wire rod production line.
The finishing mill group is located in the high-speed wire rod workshop. Rolling by 10 unit rack continuous micro-tension rolling mill, rolling the Φ17~Φ21 mm of rolled piece transported from upstream into Φ5.5~Φ16 mm finished wire rod. The mill guaranteed exit speed is 90 m/s. (When the specification of the finished product is Φ5.5 mm)
| Item
classification (m/s)specification |
Stands
structure |
Design
speed (m/s) |
Guaranteed
speed (m/s) |
Incoming
material specification (mm) |
Finished
products specification (mm) |
Feed
temperature (ºC) |
Motor
speed (KW) |
Rolling
steel grade |
| 84 m/s No
twist 45º side cross mill type |
6 stands mill unit | 84 | 32-60 | Φ13-15 | Φ6.5-10 | 900-1050 | 1500 | Low/medium
carbon steel, structural steel, low alloy steel, stainless steel, valve steel |
| 8 stands mill unit | 84 | 32-65 | Φ16-19 | Φ6.5-12 | 900-1050 | 2500 | ||
| 8 stands mill unit | 84 | 32-65 | Φ16-19 | Φ6.5-12 | 900-1050 | 2500 | ||
| 10 stands mill unit | 84 | 40-70 | Φ18-21 | Φ5.5-16 | 900-1050 | 1500*3 | ||
| 90 m/s No
twist 45º side cross mill type |
4 stands mill unit | 90 | 32-60 | Φ10-15 | Φ6.5-10 | 900-1050 | 1500 | |
| 6 stands mill unit | 90 | 40-60 | Φ13-15 | Φ6-10 | 900-1050 | 2500 | ||
| 6 stands mill unit | 90 | 40-60 | Φ13-15 | Φ6-10 | 900-1050 | 2500 | ||
| 8 stands mill unit | 90 | 40-65 | Φ16-21 | Φ5.5-12 | 900-1050 | 2000*2 | ||
| 8 stands mill unit | 90 | 40-65 | Φ16-21 | Φ5.5-12 | 900-1050 | 2000*2 | ||
| 8 stands mill unit | 90 | 40-65 | Φ16-21 | Φ5.5-12 | 900-1050 | 2000*2 | ||
| 10 stands mill unit | 90 | 40-80 | Φ17-21 | Φ5.5-14 | 900-1050 | 1500*3 | ||
| 10 stands mill unit | 90 | 40-80 | Φ17-21 | Φ5.5-16 | 900-1050 | 1500*3 |
The finishing mill group is the extra-heavy top cross 45° high-speed wire rod finishing mills designed for the high-speed wire rod production line.
The finishing mill group is located in the high-speed wire rod workshop. Rolling by 10 units rack continuous micro-tension rolling mill, rolling the Φ17~Φ21 mm of rolled piece transported from upstream into Φ5.5~Φ16 mm finished wire rod. The mill guaranteed exit speed is 90 m/s. (When the specification of the finished product is Φ5.5 mm)
Finishing mill unit is combined with ten mills, speed increasing box, support base, arc coupling, waterproof slot, waterproof plate, the protective cover, piping and guide of finishing mill. Mill frame is composed of three Æ200mills and seven Æ150 mills, frame use top crossed 45° composition form to achieve no twisting, no contact axis, little axis and shock for equipment, besides, it decreases the center of gravity height, the stability increased as well, in the meantime, the total weight has decreased and it is easy to maintain. Ten frames are the concentrated transmission.
Finishing mill uses top cross 45º layout, reducing equipment center of gravity height, increasing the stability of the unit, reducing the weight of the equipment, operation and maintenance more convenient as well.
Adjacent rolling mill stand are arranged at 90º to each other, achieving no-twist rolling.
The form of the mill: Cantilever roller loop mill
The quantity of frame: ten (first~third frames are Æ200 mill，fourth~tenth frames are Æ150mill)
Design method: top crossed 45°, ten frames concentrated transmission.
Size of roll loop: Æ200 mill：（Æ210.5–Æ189.5）×Æ120.65×72mm
Æ150 mill：（Æ158.8-Æ142.9）×Æ87.76×62mm
Rolling force： Æ200 mill：152kN
Æ150mill：107.8kN
Rolling torque： Æ200 mill：2.86kNm
Æ150 mill：1.61kNm
Transmission motor: DC motor
Power: 1600kW×three or 4500 kW AC inverter motor
Rotating speed: 1000~1300 r/min
Working speed: 900~1100r/min
