High Hydrogen Gas Bright Belt Annealing Furnace for Steel | China Suppliers & Factory
🏭 Product Introduction
The bright belt 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 & 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:
Feature 01
🌡 Uniformity & Precise Temperature Control
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.
Feature 02
⚡ High Production Efficiency
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.
Feature 03
🌿 Green & Environmentally Friendly
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.
Feature 04
🤖 Full Automatic Control
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.
🎯 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.
🔧
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.
❓ Frequently Asked Questions
Q
What is a bright belt annealing furnace and how does it work?
A
A bright belt annealing furnace is an industrial heat treatment system designed for metal coils, pipes, and wires. It works by placing the workpiece inside a sealed inner cover, which is then evacuated or filled with protective gases (such as a nitrogen-hydrogen mixture) to isolate oxygen. The material is heated through an outer cover, eliminating oxidation and ensuring a bright, clean metal surface after processing.
Q
What temperature uniformity can this furnace achieve?
A
Thanks to strong convective circulation technology, the furnace maintains an internal temperature difference within ±5℃. The entire heating, heat preservation, and cooling process is automatically managed by a computer control system, ensuring consistent and uniform material properties throughout each batch.
Q
What types of metals can be processed in this annealing furnace?
A
The furnace supports both non-ferrous and ferrous metals. Non-ferrous applications include copper, copper alloys, and aluminum alloys. Ferrous applications include stainless steel, silicon steel, ordinary carbon steel, and alloy steel — particularly in coil and wire product form for intermediate or finished annealing.
Q
How does the bright annealing process eliminate the need for acid washing?
A
By using a sealed protective atmosphere or vacuum environment during annealing, oxidation and scale formation are completely prevented. As a result, the metal surface remains naturally bright after treatment, making the traditional acid washing step unnecessary and fundamentally eliminating acid pollution and wastewater treatment challenges.
Q
What is the "double furnace base" design and what are its benefits?
A
The double furnace base design allows two furnace bases to operate in alternating stages — while one base is in the active heating cycle, the other can simultaneously undergo cooling and loading. This quasi-continuous production mode significantly increases throughput, with a single furnace capable of loading up to 30 tons per cycle.
Q
How is the fuel combustion process controlled in this furnace?
A
Secondary air inlet and saturated steam are used to convert coal into carbon monoxide gas, which is then fed into the covered furnace for combustion and heating. The ratio of air intake and steam relative to the coal seam is automatically regulated by a PLC control system, and slag disposal is handled automatically, ensuring stable and clean operation.