High Hydrogen Gas Annealing Furnace for Cold Rolling Strip Steel - China Suppliers and Factory Solutions
Product Introduction
The bright blet annealing furnace is an advanced industrial equipment used for non-oxidative heat treatment of metal coils, pipes, wires, etc. in a protected atmosphere or vacuum environment. Its core objective is to eliminate internal stress in the material, improve mechanical properties, while maintaining the original bright surface of the metal and avoiding the formation of oxide scales and decarburization layers.
⚙️ Core Principles and Characteristics
The core principle is to isolate oxygen. The workpiece is placed inside a sealed inner cover, evacuated or filled with high-purity inert/reducing protective gases (such as a nitrogen-hydrogen mixture), and then heated through the outer cover. The main features of this equipment include:
Utilizing strong convective circulation technology, the temperature difference within the furnace can be kept within ±5℃, ensuring uniform material properties. The entire process is automatically controlled by a computer, which is precise and reliable.
The "double furnace base" design is commonly adopted. When one furnace base is in heating mode, the other can be cooled and loaded, enabling quasi-continuous production. The loading capacity of a single furnace can reach 30 tons, resulting in high production efficiency.
After annealing, the surface is bright and free of oxidation, eliminating the need for the traditional acid washing process after annealing. This fundamentally solves the problems of acid pollution and wastewater treatment.
🎯 Application Scope
This equipment is applicable to a variety of metal materials and is mainly divided into two categories:
- Non-ferrous metals: Finished bright annealing of copper and copper alloys, aluminum alloys, etc.
- Ferrous metals: Intermediate or finished annealing of coil and wire products such as stainless steel, silicon steel, ordinary carbon steel, alloy steel, etc.
Control System: The full automatic control system controls and manages the whole process of heating, heat preservation and cooling of each hood furnace, providing reliable guarantee for the production of users.
Heating Mechanism: Secondary air inlet and saturated steam are used to convert coal into carbon monoxide gas and feed it into a covered furnace for combustion and heating. The proportion of air intake and steam to coal seam is automatically controlled by PLC system, and slag is automatically discharged.
What is the main purpose of a bright bell annealing furnace?
Its core objective is to eliminate internal stress in metal materials and improve mechanical properties, while maintaining the original bright surface and avoiding the formation of oxide scales and decarburization layers.
How does the equipment prevent metal oxidation during heating?
It isolates oxygen by placing the workpiece inside a sealed inner cover, which is then evacuated or filled with high-purity inert or reducing protective gases (like a nitrogen-hydrogen mixture) before being heated.
How accurate is the temperature control in the furnace?
By utilizing strong convective circulation technology and a fully automatic computer control system, the temperature difference within the furnace is precisely kept within ±5℃.
What makes the furnace highly efficient for production?
It uses a "double furnace base" design. While one base is heating, the other can be cooled and loaded, allowing for quasi-continuous production. Additionally, a single furnace can load up to 30 tons.
Why is this annealing process considered environmentally friendly?
The process leaves the metal surface bright and oxidation-free, which completely eliminates the need for traditional acid washing. This fundamentally solves issues related to acid pollution and wastewater treatment.
What types of metals can be processed in this equipment?
It is suitable for non-ferrous metals (such as copper, copper alloys, and aluminum alloys) and ferrous metals (including stainless steel, silicon steel, ordinary carbon steel, and alloy steel).