Steel rebar roll mills are the backbone of modern construction material production, transforming raw steel into high-strength reinforcement bars. These sophisticated systems combine precision engineering with advanced metallurgical principles to meet global demand for infrastructure development.
The Fundamentals of Steel Rebar Rolling
Moderne steel rebar roll mills utilize a multi-stage process to shape billets into finished rebars. The typical production line includes:
- Four de réchauffage (up to 1250°C)
- Roughing mill stand (4-6 passe)
- Intermediate mill stand (4-8 passe)
- Finishing mill stand (2-4 passe)
- Quenching and self-tempering (QST) système
- Cooling bed and bundling equipment
Key Technical Parameters of Rebar Rolling Mills
The performance of steel rebar roll mills depends on several critical parameters:
| Paramètre | Gamme de spécifications | Measurement Unit |
|---|---|---|
| Capacité de production annuelle | 300,000 – 1,200,000 | tonnes/an |
| Taille de la billette d'entrée | 120×120 – 160×160 | mm |
| Output Rebar Diameter | 8 – 50 | mm |
| Vitesse de roulement | 12 – 45 | MS |
| Mill Stand Motor Power | 500-2000 | kW |
| Diamètre du rouleau | 450-850 | mm |
| Température de roulement | 950-1150 | °C |
| Cooling Water Pressure | 0.3-0.8 | MPa |
| Résistance à la traction (Output) | 400-600 | MPa |
| Limite d'élasticité (Output) | 235-500 | MPa |
| Elongation | 14-25 | % |
| Mill Line Length | 80-200 | m |
| Niveau d'automatisation | Siemens/ABB Level 2 | – |
| Consommation d'énergie | 45-65 | Kwh / tonne |
Advanced Technologies in Modern Mills
Des fabricants leaders comme Hani Tech incorporate cutting-edge features in their steel rebar roll mills:
1. Laminage thermomécanique (TMR)
Precise temperature control during deformation achieves grain refinement without additional heat treatment.
2. QST (Quenching and Self-Tempering)
This water cooling system creates a hardened surface layer while maintaining a ductile core.
3. Contrôle automatique de la jauge (CAG)
Hydraulic systems maintain ±0.1mm dimensional accuracy across all product sizes.
HANI TECH’s Innovations in Rolling Mill Equipment
As a specialist in hot rolling mill plants, HANI TECH offers complete solutions including:
- High rigidity short stress path mill stands
- Vertical edgers for improved width control
- Energy-efficient walking beam furnaces
- Advanced descaling systems (160 bar water pressure)
Leur steel rebar roll mills achieve 98.5% operational availability with predictive maintenance systems.
Metallurgical Considerations
Le steelmaking process directly impacts rolling mill performance. Key factors include:
- Carbon equivalent (CE) control: 0.35-0.55
- Microalloying with V, Nb, or Ti
- Inclusion morphology control
- Continuous casting billet quality
Future Trends in Rebar Rolling Technology
La prochaine génération de steel rebar roll mills will feature:
- AI-powered process optimization
- Hydrogen-ready reheating furnaces
- Integrated digital twins for simulation
- Advanced sensor networks for Industry 4.0
Pour les opérateurs cherchant à moderniser les systèmes existants steel rebar roll mills, HANI TECH fournit high-performance mill rolls avec 20-30% longer service life through proprietary heat treatment processes.
This technical overview demonstrates how modern steel rebar roll mills combine mechanical engineering precision with metallurgical science to produce the reinforcing bars that build our world’s infrastructure.
