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pitch based carbonization furnace oven kiln.jpg

High-Temperature Pitch Based Carbonization Furnace Kiln Oven from China Suppliers & Factory for Carbon Fiber Production

The carbonization furnace plays a vital role in the production of pitch-based carbon fiber. Positioned after the pre-oxidation furnace, it serves as the essential equipment that transforms pre-oxidized fibers into high-quality carbon fiber. As a leading supplier in China, our factory is dedicated to delivering top-notch carbon fiber products through advanced manufacturing processes. Trust our expertise as China’s premier supplier for all your carbon fiber needs
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    Technical Parameters

    Main Functions of Carbonization

    Removal of Non-Carbon Elements

    High-temperature pyrolysis removes elements such as O, H, and N from pre-oxidized fibers (residual rate <1%), increasing the carbon content to 92%-99%.

    Formation of Graphite Structure

    High temperatures promote rearrangement of fiber molecular chains, forming a turbostratic graphite structure, which imparts high modulus and high strength to the carbon fibers.

    Key Performance Relationships

    Process control in the carbonization furnace directly affects the tensile modulus (150-900 GPa) and strength (1-7 GPa) of the carbon fibers. It is a crucial element in the development of high-modulus pitch-based carbon fibers (such as M60J grade for aerospace applications).

    Frequently Asked Questions

    How does the carbonization process remove non-carbon elements?

    High-temperature pyrolysis is utilized to remove non-carbon elements such as Oxygen (O), Hydrogen (H), and Nitrogen (N) from pre-oxidized fibers, reducing the residual rate to less than 1%.

    What is the final carbon content after high-temperature pyrolysis?

    Following the removal of non-carbon elements during the pyrolysis process, the carbon content of the fibers increases to approximately 92%-99%.

    What structure gives carbon fibers their high modulus and strength?

    The high modulus and strength are imparted by the formation of a turbostratic graphite structure, which is created when high temperatures promote the rearrangement of fiber molecular chains.

    How does the carbonization furnace affect carbon fiber performance?

    Process control inside the carbonization furnace directly dictates the mechanical properties of the fibers, specifically affecting their tensile modulus (150-900 GPa) and tensile strength (1-7 GPa).

    Why is carbonization control critical for aerospace applications?

    Precise process control in the carbonization furnace is vital for developing specialized high-modulus pitch-based carbon fibers, such as the M60J grade, which are essential for aerospace applications.