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China PQ Vacuum Brazing Furnace: High-Precision Metal Connection - Trusted Suppliers & Factory for Advanced Manufacturing
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China PQ Vacuum Brazing Furnace: High-Precision Metal Connection - Trusted Suppliers & Factory for Advanced Manufacturing

The PQ series vacuum brazing furnace is a state-of-the-art solution designed for high-precision metal bonding in a vacuum environment. This advanced equipment leverages non-oxidation heating and the capillary action of liquid brazing metals to effectively weld intricate components, including narrow channels, honeycomb structures, and multi-layer plate fin heat exchangers. By harnessing the exceptional fluidity of brazing metal under vacuum conditions, it achieves strong and airtight connections for complex structural parts, As a leading manufacturer in China, our factory produces these furnaces to meet the stringent demands of precision welding across various materials. The PQ series is recognized for its high yield and reliability, making it essential for high-end manufacturing of complex component connections. It finds extensive applications in aerospace, electronics, semiconductors, nuclear energy equipment, automotive manufacturing, and medical devices. Trust our factory as your go-to suppliers for high-quality vacuum brazing solutions in the market
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    Product Details

    characteristic 01

    Heat the workpiece under different vacuum (10-2~10-6 mbar), remove the adsorbed gas and impurities on the surface of the workpiece, and avoid weld porosity and inclusion defects.

    Multi-zone independent temperature control, combined with PID algorithm, to achieve ±5℃ furnace temperature uniformity, with good temperature control accuracy.

    Through inert gas nitrogen under different cooling pressure, combined with high-speed large flow fan to quickly cool the workpiece, cooling speed is controllable.

    According to the uniqueness and complexity of vacuum brazing process, it is equipped with multiple protection mechanisms to eliminate potential risks from all aspects and multiple dimensions, and fully ensure the safe operation of equipment.

    Support the overall brazing of complex workpieces such as multi-layer laminated sheets, honeycomb structure, small runner (such as heat exchanger fins, rocket nozzle) to achieve high-precision assembly and sealing.

    Can braze the combination of heterogeneous materials, through the gradient transition layer design to alleviate the stress problem caused by the difference in thermal expansion coefficient.

    Choose a flexible opening method of the furnace door according to the customer's on-site requirements (such as the door position left and right direction, automatic or manual opening).

    Integrated PLC, with program controller or computer interface, touch screen, recorder and other real-time monitoring furnace vacuum degree, temperature, pressure and other data, support remote fault diagnosis and process tracing.

    Common specifications 02
    Model number PQ-65 PQ-80 PQ-130
    Effective working area dimension: Width × height × length (mm) 650×500×1000 800×800×1300 1300×1200×2200
    Working vacuum 10-1~10-6 mbar (optional)
    Temperature Maximum 1320℃ / normal operating temperature 540~1280℃
    Cooling gas medium Nitrogen, Argon (optional)
    Gas cooling pressure 0.87∼2.8barabs, maximum support 10barabs (optional)
    Handling weight approx. (Kg) 450 800 2500
    Installed power (KW) 185 350 475
    ※ Support the furnace effective working area size, maximum temperature, working vacuum, gas cooling pressure and other parameters customized according to requirements, to meet the diversified production scenarios.
    Frequently Asked Questions
    What is the maximum operating temperature of the vacuum brazing furnace?
    The furnace can reach a maximum temperature of 1320℃, with a normal operating temperature range between 540℃ and 1280℃ to suit various brazing processes.
    Can the size and parameters of the furnace be customized?
    Yes, we support customization for the furnace's effective working area size, maximum temperature, working vacuum levels, gas cooling pressure, and other technical parameters based on your specific production requirements.
    How does the furnace prevent defects like weld porosity?
    By heating the workpiece under a high vacuum level ranging from 10-2 to 10-6 mbar, the furnace effectively removes adsorbed gases and surface impurities, preventing weld porosity and inclusion defects.
    What cooling media and cooling options are available?
    The system supports Nitrogen and Argon as optional cooling gas media. Combined with a high-speed large flow fan under adjustable cooling pressures, it allows for a highly controllable cooling process.
    What types of complex workpieces can be brazed with this equipment?
    It supports the high-precision assembly, sealing, and overall brazing of complex structures such as multi-layer laminated sheets, honeycomb structures, and small runners like heat exchanger fins and rocket nozzles.
    Does the system support remote monitoring and diagnostics?
    Yes, the integrated PLC system features a touch screen, program controller, and computer interface. It monitors vacuum levels, temperature, and pressure in real-time while supporting remote fault diagnosis and process tracing.