Continuous Bright Annealing Furnace with Water Quench and Ammonia Cracker System

For manufacturers requiring high-quality, oxidation-free surfaces in metal Heat Treatment, an efficient and fully integrated system is essential. Ourcontinuous bright annealing Furnace with water quench tank and ammonia decomposition unit offers a complete solution for achieving mirror-bright surfaces while maintaining excellent mechanical properties.

This advanced system is widely used in the stainless steel, copper, HVAC, automotive, and precision tubing industries.

System Overview:

The core of this solution is the continuous furnace, which operates under a protective gas atmosphere to prevent oxidation during annealing. Heated by electric or gas energy, the furnace is designed for uninterrupted feeding of metal tubes, wires, or strips. After heating, the material passes through a water quench tank, ensuring instant cooling and metallurgical stability.

To supply a cost-effective protective gas, the system includes a dedicated ammonia cracker (ammonia decomposition furnace). This unit decomposes anhydrous ammonia (NH₃) into a mixture of hydrogen (H₂) and nitrogen (N₂), creating a reducing atmosphere ideal for bright annealing processes.

Key Advantages:

🌡️ Bright Annealing with No Oxidation

Hydrogen-rich atmosphere from the ammonia cracker prevents surface oxidation and decarburization, delivering mirror-bright surfaces ideal for high-precision and visible applications.

🔁 Continuous Processing for High Throughput

The mesh belt or roller conveyor system enables uninterrupted feeding of products through heating and quenching zones, ideal for mass production.

💧 Instant Water Quenching

The integrated water tank ensures rapid cooling right after heat treatment, locking in metallurgical structure and improving strength, ductility, and dimensional stability.

⚙️ On-Site Protective Gas Generation

Using an ammonia cracker eliminates the need for expensive bottled hydrogen. It offers stable, safe, and economical protective gas generation on-site.

💡 Energy Efficiency and Automation

The system is fully automated with PLC + HMI control, temperature zoning, gas flow regulation, and safety interlocks, maximizing performance while reducing energy waste and human error.

Typical Applications:

• Stainless steel pipes and tubes (SUS 304, 316, 201, etc.)

• Copper and brass tubing

• Heat exchanger and condenser coils

• Precision medical or instrument tubing

• Wire annealing with bright surface requirement

Ammonia Cracker Highlights:

• Output gas composition: 75% H₂, 25% N₂ (ideal for bright annealing)

• Operating temperature: ~800–900°C

• Catalyst: Nickel-based for efficient NH₃ decomposition

• Features: Flowmeter, dew point monitoring, pressure regulation, safety protection system

• Options: Single or dual tower design, buffer tank integration

Why Choose Our Integrated Annealing + Gas Generation System?

We specialize in custom-engineered furnace systems for continuous, bright, and safe heat treatment. With our integrated furnace and ammonia cracker:

• You reduce production cost (no bottled hydrogen needed)

• You ensure stable, oxidation-free results

• You benefit from energy savings and automation

• You improve surface quality and mechanical consistency

• You reduce environmental impact with clean, efficient technology