Home > News > Induction Heat Treatment Line for Steel Billet

Induction Heat Treatment Line for Steel Billet

Aug. 07, 2026

Process Overview of Induction Heat Treatment Line for Steel Billet

Forever Electromechanical’s induction heat treatment line for steel billet is a fully‑continuous intelligent production solution, specially developed for quenching, tempering and pre‑forging reheating of round and square steel billets. Compared with traditional gas‑fired furnaces, this induction line delivers higher thermal efficiency, minimal surface oxidation and precise metallographic control, widely applied in steel rolling, forging, steel ball manufacturing and heavy‑duty fastener industries. The whole workflow runs automatically, and core technical procedures are listed below.

1. Automatic feeding & parameter matchingRaw steel billets are transported to the feeding station. The PLC system identifies billet diameter, length and material grade, and automatically matches power, frequency and conveying speed. Servo‑driven roller tables push billets into the heating zone one by one, avoiding manual mis‑operation and guaranteeing stable production rhythm.

2. Multi‑zone segmented induction heating

Equipped with IGBT medium‑frequency power supply, the line adopts multi‑stage coil layout: preheating section, rapid heating section and temperature homogenizing section. By electromagnetic eddy‑current heating inside billets, it achieves synchronous heating from core to surface. Infrared pyrometers carry out real‑time temperature monitoring, forming closed‑loop feedback to adjust output power, to keep uniform cross‑section temperature and reduce internal stress.

Induction Heat Treatment Line for Steel Billet

3. Precision quenching processAfter reaching austenitizing temperature, hot billets move into the quenching chamber. Adjustable‑pressure spray system sprays cooling medium evenly on billet surface. Controlled cooling rate optimizes martensite formation, effectively prevents deformation and surface cracking, and keeps consistent hardness across batches.

4. Constant‑temperature tempering treatmentQuenched billets enter the induction tempering module. Secondary induction heating releases internal stress, improves material toughness and eliminates brittleness. Tempering temperature and holding time can be modified according to carbon steel, alloy steel and other material requirements, to meet final mechanical‑property standards.

5. Cooling, discharging & online inspectionFinished billets go through circulating cooling. Unqualified workpieces with abnormal temperature are automatically sorted out. Qualified billets are discharged for downstream rolling, forging or further machining. Real‑time fault alarm system records operating data for production traceability.

This production line supports long‑time stable mass‑production. It realizes instant start‑stop without long preheating period, greatly cutting energy loss and oxide scale. Modular structure facilitates on‑site installation and later maintenance. Forever provides complete factory testing, on‑site commissioning, one‑year warranty and lifelong technical service for global customers. As low‑carbon metal processing gains popularity worldwide, Forever will keep optimizing induction heat‑treatment technology to deliver more reliable customized solutions for metal‑manufacturing clients.

Induction Heat Treatment Line for Steel Billet

Overseas manager:Mr. Wang

Email:tom@foreverfurnace.com

Phone/Wechat/Whatsapp:+8613303078975

Next: Steel Plate Induction Heating Machine Manufacturer