Steel Billet Induction Heating Line | IGBT Induction Heating Furnace for Hot Rolling

Introduction

Traditional hot rolling plants have long struggled with high energy consumption, heavy oxidation loss and uneven billet temperature when using gas furnaces or old thyristor heating devices. To tackle these industry pain points, Forever Electromechanical upgrades its mature steel billet induction heating line built around IGBT medium frequency induction furnace technology, delivering stable, energy-saving and low-oxidation heating solutions specially customized for hot rolling processes. This continuous heating system is widely matched with skew rolling mills, steel ball rolling lines and other hot rolling forming equipment, and has been recognized by metal processing manufacturers across overseas markets.

IGBT Power Core: Boost Energy Efficiency and Stable Output

The whole heating line takes self-developed full digital IGBT induction heating power supply as the core. Different from inefficient SCR power units, the IGBT module maintains a power factor above 0.97 under variable load conditions, lifting electrothermal conversion efficiency to more than 93%. It eliminates idle power consumption during blank feeding intervals and cuts overall power consumption by around 35% compared with conventional gas heating furnaces. With multi-protection design of overcurrent, overvoltage, water shortage and overtemperature, the power cabinet can run continuously for 24 hours under heavy load, avoiding sudden shutdown losses during continuous hot rolling production.

Segmented Heating Structure, Uniform Temperature and Less Oxidation

The furnace body adopts segmented preheating and through-heating combined layout optimized by finite element simulation. High-conductivity oxygen-free copper induction coils with multi-layer magnetic shielding reduce magnetic flux leakage and surface heat loss. Cold billets are gradually warmed up in the preheating zone to avoid sharp thermal shock, then enter the main heating section for synchronous internal and external heating. The infrared closed-loop temperature measuring system keeps billet cross-section temperature deviation within ±8℃. The low-oxidation heating environment greatly reduces oxide scale, lowers material waste and effectively prevents defective rolling products caused by inconsistent metallographic structure.

steel billet heating and reheating furnace

Intelligent Conveying and Seamless Docking with Hot Rolling Mill

Equipped with automatic feeding roller conveying system, the production line realizes steady speed control and synchronized linkage with downstream hot rolling equipment. Operators can store multiple sets of process recipes on the touch screen. When switching billet sizes and steel grades including carbon steel, alloy steel and bearing steel, parameters such as heating power and conveying speed can be adjusted with one click. The modular design occupies less workshop space and supports transformation of existing hot rolling workshops without large-scale reconstruction of factory power distribution and cooling systems.

Green and Customized Service for Global Hot Rolling Projects

Without open flame, smoke and exhaust emission, this induction heating line conforms to global low-carbon manufacturing standards. Forever Electromechanical supports non-standard customization according to customer’s hourly output, billet specifications and target rolling temperature. The company provides complete services including drawing confirmation, factory test run, on-site installation, technical training and after-sales maintenance. It helps hot rolling enterprises reduce production cost, improve finished product yield and achieve stable and green production.

Overseas manager:Mr. Wang

Email:tom@foreverfurnace.com

Phone/Wechat/Whatsapp:+8613303078975