Le hot rolled steel rolling mill is a cornerstone of modern metallurgy, transformer l'acier brut en produits polyvalents utilisés dans la construction, automobile, et fabrication. This article delves into the technical intricacies of hot rolling mills, leurs paramètres opérationnels, et les innovations de fournisseurs mondiaux comme HANI TECH.
What is a Hot Rolled Steel Rolling Mill?
UN hot rolled steel rolling mill processes steel slabs or billets at temperatures above 1,000°C, leveraging plasticity to shape metal into sheets, assiettes, or coils. Unlike cold rolling, hot rolling minimizes energy consumption while achieving high throughput. Key advantages include:
- Cost-effective production of large-scale steel products
- Improved mechanical properties through controlled grain structure
- Flexibility in producing diverse thicknesses (1.2mm to 25mm+)
Key Components of a Hot Rolling Mill
Modern hot rolled steel rolling mills integrate multiple subsystems:
- Fours de réchauffage: Heats slabs to 1200-1300°C for optimal plasticity
- Moulin à ébourignage: Reduces slab thickness by 40-60% through 4-6 passes
- Moulin à finition: 6-7 stand tandem mill for precision thickness control
- Refroidissement: Controls cooling rate to achieve desired metallurgical properties
- Coiler: Wraps finished strip into coils (up to 30 tons capacity)
Technical Parameters of Hot Rolling Mills
The table below details critical specifications for industrial-grade hot rolled steel rolling mills:
| Paramètre | Range/Value | Unit |
|---|---|---|
| Capacité annuelle | 500,000 – 6,000,000 | tons/year |
| Vitesse de roulement (Finishing) | 7 – 25 | MS |
| Maximum Coil Weight | 15 – 45 | tonnes |
| Work Roll Diameter | 700 – 850 | mm |
| Rolling Force | 20,000 – 45,000 | kN |
| Motor Power (Stand) | 5,000 – 12,000 | kW |
| Thickness Tolerance | ±0.05 – ±0.15 | mm |
| Width Range | 600 – 2,200 | mm |
| Temperature Control | ±15 | °C |
Innovations from HANI TECH
As a leading manufacturer (HANI TECH Rolling Mill), HANI TECH delivers advanced solutions for hot rolled steel rolling mills:
- Energy-efficient designs: Reduce power consumption by 15-20% through optimized drive systems
- Smart automation: AI-based thickness control with ±0.02mm precision
- Modular components: Quick-change roll assemblies minimize downtime
Their sister company (HANI Metallurgy) provides complementary equipment like:
- Induction heating systems for precise temperature gradients
- Hydraulic descaling units with 99.5% oxide removal efficiency
- Customized cooling beds for specialized steel grades
Quality Control in Hot Rolling
Prime hot rolled steel rolling mills incorporate multiple quality assurance measures:
- Laser thickness gauges (0.001mm resolution)
- Eddy current surface inspection systems
- Online hardness testing (Rockwell C scale)
- Automatic crown control (±1% of strip width)
Future Trends
Le hot rolled steel rolling mill L'industrie évolue avec:
- Hydrogen-based reheating furnaces (reducing CO₂ emissions by 60%)
- Digital twin technology for predictive maintenance
- Hybrid mills combining hot and cold rolling capabilities
For operators seeking to upgrade their hot rolling mill systèmes, HANI TECH offers turnkey solutions from design to commissioning, ensuring compliance with international standards like ISO 9001 and CE.
Note: All technical parameters are indicative; actual specifications vary based on mill configuration and product requirements.
