Industrial Copper Tubes Annealing Furnace

Industrial Copper Tubes Annealing Furnace

This Industrial Vacuum Annealing Furnace is designed specifically for vacuum annealing of copper tubes. It enhances crystalline structure, delivers a bright surface finish, improves degassing

This Industrial Vacuum Annealing Furnace is designed specifically for vacuum annealing of copper tubes. It enhances crystalline structure, delivers a bright surface finish, improves degassing efficiency, and significantly boosts overall material performance.

Copper Tubes Annealing Furnace Features

  • Elimination of work hardening: Restores plasticity after cold processing for easier subsequent forming.
  • Optimized grain structure: Homogenizes microstructure to enhance mechanical properties.
  • Oxidation prevention: Vacuum annealing eliminates surface discoloration.
  • Hydrogen embrittlement mitigation: Avoids brittleness risks from hydrogen in traditional atmosphere annealing.
  • Integrated structure: Lightweight, high-purity alumina furnace chamber ensures safety and environmental compliance.
  • Uniform heating: High-quality resistance wires ensure consistent temperature distribution.
  • Full automation: Pre-set programs enable automatic heating/cooling cycles.
  • User-friendly interface: Power and heating indicators for real-time monitoring.

Copper Tubes Annealing Furnace Applications

  • Power industry: Cables, transformers
  • Refrigeration: Condenser tubes (ACs, refrigerators)
  • Electronics: Heat sinks, connectors
  • Aerospace: High-precision conduits
  • New energy: Solar panels, battery components

Vacuum_Annealing_Furnace

Technical Specifications

  • Dimensions: φ360×6400mm (Diameter × Depth)
  • Temperature: Max 900°C, standard 850°C (±1°C or ±5°C accuracy)
  • Power: 380V, 3-phase, 50Hz, 248.2 kW
  • Control system:
    • 10-inch LCD touchscreen with 30 programmable curves, 30-day data storage, USB export
    • Siemens PLC automation, bidirectional anti-parallel thyristor voltage regulation
    • Self-tuning temperature control, vacuum system integrated into touchscreen
  • Heating elements: OCr25Al5 resistance wire with high tensile strength and oxidation resistance.
  • Furnace structure:
    • Double-layered chambers (outer: 309s stainless steel, δ8; inner: 321 stainless steel, δ5)
    • Robust steel frame, mobile furnace body with 5-7m/min drive system
    • 50mm I-beam rails, modular cooling ducts, and air vents
  • Atmosphere protection: N₂ atmosphere with auto-purging and pressure alarms.
  • Vacuum system:
    • 2X-70 rotary vane pump + 2X-70 mechanical pump
    • Valves controlled by cylinders and pneumatic solenoid valves
  • Ventilation: 304 stainless steel ventilation tube at rack base, compressed air backflushing at furnace mouth.
  • Safety systems: Over-temperature, thermocouple break, and pressure alarms with automatic shutdown.


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