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China's Leading Suppliers: Bridgold's Advanced Superconducting Technology Factory for High-Volume Deliveries

Overview of Bridgold's Digital & Modern Factory in China

Bridgold proudly announces the launch of its new Phase II factory in China, covering an expansive area of 15,000 m². Commissioned in October 2023, this advanced facility integrates state-of-the-art digital management and intelligent production systems. As one of the leading suppliers in the superconducting technology sector, our factory ensures full traceability, high precision, and consistent quality in every product. With robust capabilities designed to support high-volume deliveries, Bridgold's factory stands at the forefront of innovation and excellence.

    Deep Experience in Superconducting Technology Applications

    With over 10 years of expertise in copper busbars, we possess in-depth knowledge of the unique demands of superconducting systems—high-current transmission within cryostats, extremely low thermal leakage requirements, stringent insulation withstand, and vibration resistance. From material selection and structural design to insulation withstand and temperature-rise validation, we offer customized solutions throughout the entire design cycle, ensuring the high reliability and safety of copper busbars as critical transition connections between room-temperature terminals and superconducting magnets/cables.

    Product Display

    Product Details (Core Functions of Copper Busbars)

    Copper busbars deliver three core functions in superconducting technology:

    High-current Transmission

    Connecting superconducting magnet power supplies to cryostat feedthroughs, carrying thousands of amperes of DC current.

    Equipotential Bonding & Grounding

    Equalizing enclosure and structural potentials while providing safe protection paths.

    Absorbing Vibration & Thermal Stress

    Cushioning mechanical stress from cryocooler vibration and temperature variations.

    Laminated Busbars

    Low parasitic inductance effectively suppresses transient overvoltage, protecting sensitive superconducting magnets and power devices; flat profile saves limited space within cryostats; custom L/Z shapes available.

    Braided Busbars

    Ultimate flexibility with an extremely small bending radius, effectively absorbing cryocooler vibration and thermal contraction displacement; the braided structure distributes stress against high-frequency fatigue; excellent heat dissipation minimizes localized heating.

    Frequently Asked Questions

    Q What role do copper busbars play in superconducting systems?
    Copper busbars serve as vital transition conductors between room-temperature power supplies and cryogenic superconducting components, providing ultra-high current transmission, reliable equipotential bonding, and mechanical stress absorption.
    Q Why are laminated busbars preferred for superconducting magnet power feeds?
    Laminated busbars feature ultra-low parasitic inductance, which effectively suppresses transient voltage spikes, protecting sensitive power semiconductors and superconducting magnets while fitting into tight cryostat footprints.
    Q How do braided copper busbars handle cryogenic thermal expansion and contraction?
    Braided busbars offer exceptional multi-directional flexibility and a tight bending radius, allowing them to absorb severe thermal dimensional shrinkage during cooling cycles and eliminate cryocooler vibration transfer.
    Q Can copper busbars be customized for complex cryostat geometries?
    Yes, full customization is available throughout the design cycle, including custom L-shapes, Z-shapes, specialized cross-sections, custom mounting terminations, and application-specific dielectric insulation layers.
    Q How is thermal leakage minimized in high-current copper busbar designs?
    Through optimized cross-sectional design, precise material purity selection, and thermal gradient simulation, balancing low electrical resistance with minimized thermal conduction into the cryogenic environment.