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High Hydrogen Gas Bright Belt Annealing Furnace - Eco-Friendly Solution from China Suppliers and Factory

Introducing our advanced gas generator, meticulously crafted for small and medium-sized cold rolling strip steel enterprises in China. This innovative solution eliminates the need for liquefied petroleum gas (LPG), coke oven gas, or mixed gas, allowing manufacturers to efficiently use block coal or coke for producing generator gas tailored for annealing equipment, Our factory takes pride in offering a gas generator that operates without smoke or pollution, ensuring a clean and sustainable production process. Equipped with automatic dust and tar removal functions, this generator guarantees zero emissions and no black smoke. As trusted suppliers in the industry, we are committed to providing environmentally friendly solutions that meet the demands of cold rolling strip steel manufacturers across China

    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 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:

    1
    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.

    2
    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.

    3
    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.

    🏭 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.

    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. 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 the main purpose of a bright belt annealing furnace?
    The bright belt annealing furnace is designed for non-oxidative heat treatment of metal coils, pipes, and wires. Its primary goal is to eliminate internal stress, improve mechanical properties, and preserve a bright, oxide-free surface on the metal — without requiring subsequent acid washing.
    Q How does the furnace prevent oxidation during the annealing process?
    The furnace uses a sealed inner cover that is either evacuated or filled with high-purity inert or reducing protective gases — typically a nitrogen-hydrogen mixture. This effectively isolates oxygen from the workpiece, preventing oxidation, scale formation, and decarburization throughout the entire heat treatment cycle.
    Q What level of temperature uniformity can this furnace achieve?
    Thanks to its strong convective circulation technology, the furnace maintains a temperature difference of within ±5℃ throughout the heating chamber. This ensures consistent and uniform material properties across the entire batch, which is critical for high-quality metallurgical results.
    Q What types of metals can be processed in this furnace?
    The bright belt annealing furnace supports a wide range of metallic materials, including both non-ferrous metals (such as copper, copper alloys, and aluminum alloys) and ferrous metals (such as stainless steel, silicon steel, ordinary carbon steel, and alloy steel), making it highly versatile for industrial applications.
    Q How does the double furnace base design improve production efficiency?
    With the double furnace base design, one furnace base operates in heating mode while the other simultaneously undergoes cooling and loading. This enables quasi-continuous production with minimal downtime. A single furnace can handle a loading capacity of up to 30 tons, significantly boosting overall throughput.
    Q How does this furnace contribute to environmental protection?
    Because the annealed metal surface remains bright and oxidation-free, there is no need for the traditional acid washing step that follows conventional annealing. This eliminates acid waste discharge and wastewater treatment requirements, making the bright belt annealing furnace a significantly cleaner and more environmentally friendly solution for heat treatment production.