Foster Induction – Induction Annealing Furnace (Wire Annealing / Stress Relief Furnace)
Foster Induction’s annealing furnace uses IGBT-based medium‑to‑high frequency induction heating technology to rapidly heat wires, strips, and other conductive materials for processes like annealing, stress relief, tempering, and bright annealing .
Key Features:
Fast, uniform heating via electromagnetic induction (eddy‑current & hysteresis-based) ensures quick temperature ramp-up without direct contact or open flame .
Precise digital control: micro‑controller / PLC‑based temperature and time settings allow consistent, repeatable outputs .
For non‑ferrous and ferrous materials such as copper wire, strip, and steel elements—with customizable power and coil geometry .
Safety & efficiency: automated control lowers operator risk; IGBT inverter design minimizes energy loss; compact, clean and eco‑friendly .
Typical Use Cases:
In-line annealing in manufacturing—such as copper/ aluminium wire extrusion lines—to relieve stress or prepare material for further processing.
Stress-relief and bright-annealing of metal parts, minimizing microstructural defects and enhancing ductility or machinability .