Bell Annealing Furnace
Jiangsu Jiuding Industrial Furnaces Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of bell annealing furnace in China, also supports customized service. Welcome to wholesale high-grade bell annealing furnace for sale here from our factory. Quality products and reasonable price are available.
Product Concept
The full hydrogen annealing environment and optimized annealing process of the bell annealing furmace improve the strip quality and production efficiency. The protective gas is 100% hydrogen, which provides a more superior environment for strip annealing.
Product Features
1. Hydrogen is lightweight and has high thermal conductivity. It can easily penetrate between the layers of steel coils, improving heat transfer efficiency and increasing the circulation volume of protective gas in the hood.
2. Hydrogen, as a reducing gas, can reduce FeO to iron under high temperature conditions and effectively reduce the impact of rolling oil (residual carbon) brought by the cold rolling mill.
3. Using pure hydrogen as a protective atmosphere can make the crystallization process more uniform, thereby ensuring that the mechanical properties of the annealed products are more uniform.
Working principle
The core principle of the bell annealing furmace is to achieve efficient annealing of metal materials in a closed environment through the high thermal conductivity, low density and reducibility of hydrogen.
It can be divided into the following key links:
Hydrogen as a heat transfer medium
High thermal conductivity: Fast heat transfer and shortened annealing cycle.
Low density characteristics: Reduced operating noise and fan energy consumption.
Chemical reduction of hydrogen
Oxide layer reduction: At high temperatures, hydrogen can reduce iron oxide on the metal surface to iron and water vapor to achieve bright annealing effect.
Residue removal: Reduce impurity residues and improve the surface quality and uniformity of mechanical properties of materials.
Equipment structure and work flow
Closed system design: In a closed space, hydrogen is forced to convect through a circulating fan to achieve radial uniform heat transfer.
Key components:
Heating hood: Provide a high temperature environment.
Hydrogen circulation system: Recycle and purify hydrogen to reduce gas consumption.
Control system: Accurately adjust parameters such as temperature and hydrogen flow rate to ensure the stability of the annealing process.
Our company can design and manufacture bell annealing furmace of various furnace sizes and models for users according to user needs.
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