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

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Our full hydrogen bell annealing furnace is designed to utilize hydrogen as the sole protective gas during the heat treatment process. Unlike traditional bell furnaces that rely on a hydrogen-nitrogen mixture, our advanced technology employs 100% hydrogen, optimizing heat conduction. Hydrogen is a highly reactive gas that significantly enhances efficiency; its heat conduction speed is seven times greater than that of nitrogen. This allows for direct heat transfer from the radial direction of the steel coil, improving uniformity in annealing.

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With a low density—just 1/14 of nitrogen—our furnace reduces fan power consumption and minimizes equipment noise, making it an environmentally friendly choice for manufacturers. The reducing capabilities of hydrogen also play a crucial role in the annealing process, as it effectively transforms oxide residues into water vapor at high temperatures, thus enhancing the quality of cold-rolled thin plates.

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As a leading supplier and factory of innovative heat treatment solutions in China, we are committed to providing state-of-the-art technology that meets the demands of modern manufacturing. Choose our full hydrogen bell annealing furnace for superior performance and improved product quality.

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    Product Introduction
    ◉ Efficiency Ratio 1.6 : 1

    The configuration ratio between the furnace and the heating cover is reduced. The traditional HNX furnace is 2:1 — two HNX furnaces equipped with one heating cover. Due to the extremely short cooling time of the all-hydrogen furnace, the ratio is reduced to 1.6:1, saving floor area and reducing investment.

    ◉ Production Boost 40%

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

    ◉ Purity Level PPm Level

    No oxidation phenomenon. Through reliable two PPm level (millionth) sealing, sufficient washing time, and advanced control methods, annealed steel coils will have no oxidation color.