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Full Hydrogen Bell Annealing Furnace from China Suppliers - High Efficiency Factory Heat Treatment Solution

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The full hydrogen bell annealing furnace represents a cutting-edge solution in heat treatment, utilizing pure hydrogen as the protective gas. Unlike traditional bell furnaces that rely on a hydrogen-nitrogen mixture, this innovative furnace employs 100% hydrogen for optimal heat conduction. Hydrogen, a highly reactive gas, facilitates rapid heat transfer—seven times faster than nitrogen—allowing for efficient heat delivery directly from the radial direction of steel coils. With a low density, hydrogen significantly reduces fan power consumption and lowers equipment noise, making it an environmentally friendly choice. Additionally, its strong reducing properties at high temperatures convert oxide residues into water vapor, enhancing the annealing quality of cold-rolled thin plates. As a leading manufacturer in China, our factory proudly supplies advanced bell annealing furnaces that meet the evolving demands of the industry.

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    Product Introduction

    1.6:1 Ratio

    The configuration ratio between the furnace and the heating cover is reduced. The traditional HNX furnace is 2:1, that is to say, two HNX furnaces are equipped with one heating cover. The ratio of the furnace cover is reduced to 1.6:1 due to the extremely short cooling time of the all-hydrogen furnace, which saves the floor area and reduces the investment.

    40% Increase

    The use of 100% hydrogen as a protective gas, corrugated inner casing, large gas flow and high speed burner, combined gas/water cooling and strong convection can increase production by 30% to 40%.

    PPm Level

    No oxidation phenomenon, due to the realization of reliable two PPm level (millionth) of the seal, enough washing time, advanced control means, annealed steel coil will not have oxidation color.

    Frequently Asked Questions

    What is the specific ratio of the furnace to the heating cover?
    The configuration ratio is optimized to 1.6:1, which is a significant reduction compared to the traditional 2:1 ratio used in HNX furnaces.
    How does the 1.6:1 ratio benefit the production facility?
    By reducing the ratio, the system saves floor area and reduces initial investment costs while maintaining high efficiency due to shorter cooling times.
    What level of production increase can be expected?
    Through the use of 100% hydrogen gas, high-speed burners, and advanced cooling systems, production can be increased by 30% to 40%.
    How is oxidation prevented during the annealing process?
    Oxidation is eliminated by achieving a reliable two PPm (parts per million) level seal combined with sufficient washing time and advanced control systems.
    What protective gas is utilized in this furnace?
    The system utilizes 100% hydrogen as a protective gas to ensure optimal thermal conductivity and a clean finish.
    What cooling technologies are integrated into the system?
    The furnace employs a combination of gas/water cooling and strong convection to achieve extremely short cooling cycles.