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High Hydrogen Gas Bright Belt Annealing Furnace for Cold Rolling Strip Steel - China Suppliers & Factory Solution

Introducing our advanced gas generator, specially engineered for small and medium-sized cold rolling strip steel enterprises in China. Unlike traditional methods that rely on liquefied petroleum gas (LPG), coke oven gas, or mixed gas, our solution utilizes block coal or coke to produce generator gas for annealing equipment, ensuring efficiency and reliability

    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.
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    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.

    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.

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    Green & Environmentally Friendly

    After annealing, the surface is bright and free of oxidation, eliminating the need for the traditional acid washing process. 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:

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    Non-Ferrous Metals

    Finished bright annealing of copper and copper alloys, aluminum alloys, etc.

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    Ferrous Metals

    Intermediate or finished annealing of coil and wire products such as stainless steel, silicon steel, ordinary carbon steel, alloy steel, etc.

    🔧 Automation & 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.

    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 bright belt annealing furnace is an advanced industrial heating equipment designed for non-oxidative heat treatment of metal coils, pipes, and wires. It works by sealing the workpiece inside an inner cover, then evacuating air or filling the chamber with high-purity inert or reducing protective gas (such as a nitrogen-hydrogen mixture) to isolate oxygen, preventing oxidation and scale formation during the heating process.
    Q What metals and materials can be processed in a bright annealing furnace?
    The equipment supports a wide range of both ferrous and non-ferrous metals. Non-ferrous applications include copper, copper alloys, and aluminum alloys. Ferrous metal applications cover stainless steel, silicon steel, ordinary carbon steel, and various alloy steels in coil and wire product forms.
    Q How accurate is the temperature control in a bright belt annealing furnace?
    Thanks to strong convective circulation technology and full computer-based automatic control, the temperature difference within the furnace can be maintained within ±5℃. This high level of uniformity ensures consistent material properties across the entire batch being processed.
    Q What are the environmental benefits of using a bright annealing furnace?
    Because the annealing process produces a bright, oxide-free surface finish, there is no need for the traditional acid pickling process that normally follows standard annealing. This completely eliminates acid pollution and wastewater treatment requirements, making it a significantly greener and more sustainable solution for metal processing facilities.
    Q How does the "double furnace base" design improve production efficiency?
    The double furnace base design allows one furnace base to remain in heating mode while the other undergoes cooling and loading simultaneously. This overlapping workflow enables quasi-continuous production, significantly reducing downtime and increasing overall throughput — with a single furnace loading capacity reaching up to 30 tons.
    Q What role does the PLC system play in the operation of the furnace?
    The PLC (Programmable Logic Controller) system plays a central role in automating the entire furnace operation. It manages and controls heating, heat preservation, and cooling processes for each hood furnace. It also automatically regulates the proportion of air intake and steam relative to the coal seam for combustion heating, and handles automatic slag discharge — ensuring reliable, consistent, and safe production.