Chamber Furnace for heat treatment of aluminum strip coils and foil coils

The charge is annealed in air or in a protective atmosphere. All alloy materials containing manganese oxide (such as AA3004 alloy) are prone to fading, so the annealing process must be completed in a protective atmosphere.

This also suitable for other alloy materials, such as deep-drawing dies requiring extremely thin oxide layers to extend service life, and composite aluminum strips used in manufacturing automotive radiators.

The chamber furnace ensures temperature uniformity of the charge while achieving the shortest heating time (e.g., during annealing to tempering: temperature variation within ±3°C at the end of holding). The airtight design of the chamber furnace ensures residual oxygen in the furnace is less than 0.05% v/v.

Aluminum foil coils undergo a special annealing process where rolling lubricants fully evaporate to prevent sticking and ensure material surface cleanliness. Annealing in a protective atmosphere ensures surface cleanliness is achieved in the shortest time, as the protective atmosphere promotes evaporation of rolling lubricants and reduces the risk of oil cracking on the foil surface.

Features:

Symmetrically arranged nozzle system for rapid and uniform temperature distribution between coils

Optimized and sealed central atmosphere cooling system for fast cooling of the charge

Sealing design of the furnace provides an oxygen-free interior to achieve clean coil surface quality

EED-developed transportation system for loading/unloading charge into/from the furnace

The equipment fully complies with specific standards of the automotive and aviation industries, including AMS 2750 (SAE Aviation) for aerospace and CQI-9 (AIAG) for automotive applications.