When selecting an online induction heating production line for ultra-thin plates, it is essential to consider the specific processing requirements of the material and evaluate factors such as core parameters, compatibility, and stability.
1. Select the appropriate heating mode
Choose between transverse flux and longitudinal flux heating modes based on plate thickness and steel grade: Transverse flux heating is suitable for plates and strips of all steel grades with thicknesses up to 50 mm, covering the full temperature range from ambient to 1300°C; longitudinal flux heating is better suited for magnetically permeable thin strips (≤10 mm thick), ensuring uniform, through-thickness heating.
2. Verify temperature control precision
Prioritize high-precision temperature control systems that offer tempering temperature uniformity within ±3°C; this meets the requirements for low-temperature heat treatment (150–750°C) of ultra-thin plates and prevents defects such as warping.
3. Ensure strip shape control capabilities
The equipment must be equipped with an online strip shape detection and learning system. With a shape measurement accuracy of ≤1 mm, the system ensures that 2 mm thick steel plates maintain a flatness deviation of ≤3 mm after quenching, eliminating issues such as head/tail warping and edge waves.
4.Energy Efficiency Performance
Prioritize models equipped with high-intensity circulating hot-air pulsed jet heating technology; this can reduce the heating coefficient by approximately 40% and cut steel plate heating time by 20%–30%, significantly lowering long-term production energy consumption.
5.Automation Control Capabilities
The system must feature a distributed process platform with tiered control to enable steel plate position tracking, real-time communication, and integration with process databases. This addresses the technical challenges posed by the numerous variables and strong coupling inherent in the heat treatment of ultra-thin plates, thereby meeting the requirements for intelligent, continuous production.
