Uniform Cross-Section Heating Solves Square Billet Hot Working Challenges
Square billets have always brought heating difficulties due to corner effect. Traditional gas furnaces often cause overheated corners, cold cores and heavy oxide scale, which easily trigger forging cracks and unstable product quality. This induction through-heating line adopts segmented medium-frequency induction coils specially optimized for square profiles. It heats the billet from inside out by eddy current effect, realizing synchronous temperature rise of surface, corner and core. The cross-section temperature difference is strictly controlled, providing stable, consistent preheating conditions for subsequent forging, hot extrusion and continuous rolling. Carbon steel, alloy steel and stainless steel square billets can all be processed steadily.
Intelligent Closed-Loop Control Stabilizes Continuous Production
The whole line is equipped with PLC control system and multi-point infrared temperature measuring modules. Conveying speed, heating power and temperature feedback are linked dynamically. Operators can store independent process recipes for different billet sizes and steel grades. Once parameters are set, the line runs automatically: automatic feeding, roller conveying, staged induction heating, real-time temperature monitoring and discharging. The system records all production data for quality traceability. Fast response and flexible start-stop make it suitable for intermittent and continuous production modes, greatly reducing quality fluctuation caused by manual operation.
Energy Saving & Low Oxidation for Greener Metal Processing
Compared with flame furnaces, induction heating has much higher thermal efficiency and short heating cycles. It greatly cuts metal burning loss, and oxide scale is minimized, lowering material waste and post-processing descaling workload. Without open flame and exhaust emission, the workshop environment is cleaner, matching the low-carbon transformation trend of metal forming factories. The modular IGBT power unit also reduces idle power consumption. For long-term mass production, it helps manufacturers cut comprehensive energy cost and improve finished product yield.
Modular Layout & Easy Integration into Hot Working Chains
This square billet induction through-heating line features modular coil frames and compact structure. It can work independently or connect seamlessly with presses, forging hammers and rolling mills to form a complete hot working production chain. The supplier provides layout design, installation, commissioning, operator training and after-sales service. As forging and special steel industries pursue higher forming stability and cleaner production, this targeted induction heating solution offers a reliable option. It helps steel processing enterprises upgrade heating links and strengthen product competitiveness in the global metal forging market.
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