1400×1500mm Pit-Type Vacuum Nitrogen Annealing Furnace for Oxygen-Free Heat Treatment up to 1100 ℃

1400×1500mm Pit-Type Vacuum Nitrogen Annealing Furnace: High-Efficiency Oxygen-Free Heat Treatment

  The HRJ3-150-11 Pit-Type Vacuum Nitrogen Annealing Furnace, engineered by WUXI WONDERY INDUSTRY EQUIPMENT CO., LTD., is a professional-grade solution designed for the high-quality annealing of non-ferrous metal parts, tubes, and components. Featuring a fully sealed structure, this equipment supports vacuum pumping and nitrogen atmosphere protection, ensuring workpieces are processed in an oxygen-free environment to prevent oxidation and ensure a bright surface finish.

 Industry Challenges & Causes

• Problem: Surface Decarburization & Oxidation.

   

• Cause: Inadequate Sealing Infrastructure. At temperatures between 800-1000°C, even trace oxygen results in heavy scale formation, necessitating expensive post-processing.
• Problem: Poor Uniformity in Deep Pit Chambers.

• Cause: Static Heating Limitations. Traditional furnaces struggle to maintain consistent temperatures over a 1500mm depth, leading to inconsistent material hardness and mechanical failure.
• Problem: Short Muffle Service Life at High Temperatures.

• Cause: Inferior Material Grades. Standard stainless steels often warp or crack under sustained 1100°C loads, resulting in frequent and costly repairs.

• Oxygen-Free Atmosphere Control: Equipped with a 2X-15 vacuum pump, the system removes air before backfilling with nitrogen, ensuring a pure environment for bright annealing.

   

• Premium High-Temperature Selection: The muffle is crafted from 10mm thick 310S stainless steel, paired with a Cr25Ni20 heat-resistant steel bottom plate to withstand rated temperatures up to 1100°C without structural failure.

• Dual-Zone Precision Heating: Managed by a Japanese Shimaden PID controller and a 10.1-inch touch screen, the system maintains strict temperature uniformity within ±10°C.

• Superior Energy Efficiency: A 325mm thick Luyang full-fiber lining combined with Shougang 0Cr27AL7Mo2 alloy ribbons maximizes radiation efficiency while significantly reducing power loss.

Main Technical Specifications

FAQ

• Q: Can the heating power be adjusted?

  A: Yes, the power is fully adjustable from 1% to 100%, allowing you to optimize energy consumption based on the specific batch size and material requirements.

• Q: How is temperature recorded?

  A: The integrated 10.1-inch touch screen provides real-time monitoring and recording of heat treatment process curves for full traceability.