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SECO/WARWICK
Nitriding and Ferritic Nitrocarburizing (FNC) furnaces

Nitriding and Ferritic Nitrocarburizing (FNC) furnaces

Product catalog summary

Overview of SECO/WARWICK:
SECO/WARWICK is a leading supplier of heat treatment and metallurgy solutions, known for its innovative, reliable, and environmentally friendly products. The company operates globally with seven companies across three continents, serving customers in nearly 70 countries. Their expertise spans five main categories: vacuum heat treatment, atmosphere processing, aluminum thermal processing, controlled atmosphere brazing of aluminum heat exchangers, and vacuum metallurgy.

ZeroFlow Gas Nitriding Technology:
ZeroFlow is an advanced, energy-efficient, and ecological gas nitriding technology used in HRN/VRN type furnaces. It allows precise control over the nitrided layer composition while minimizing ammonia consumption and emissions. The technology supports processes such as nitriding, nitrocarburizing, post-oxidation, tempering, and annealing.

Key Features of ZeroFlow Technology:

Full control of nitriding processes using ammonia as the sole process gas, eliminating the need for a dissociator.
Continuous visualization and automatic control of nitrogen potential in the furnace.
Precise control over the white layer thickness and hydrogen levels in the furnace.
Significant savings in process gases, especially for long-term nitriding processes.

HRN and VRN Furnaces:
These furnaces are designed for retort nitriding with horizontal or vertical feeding and vacuum flushing. They feature a compact design, internal convection gas fan, and cooling gas blower for efficient operation. The furnaces support automation and can be equipped with nitrocarburizing and post-oxidation systems, enhancing their versatility.

Benefits of ZeroFlow Technology:

High-quality thermal treatment results with reliable and repeatable processes.
Optimized gas consumption, reducing costs compared to traditional methods.
Advanced automation and visualization capabilities with SCADA systems.
Easy operation and process recipe preparation.
Remote diagnostics and data archiving capabilities.

Operational Details:
ZeroFlow technology controls the nitriding potential by measuring H2 content and adjusting ammonia inflow based on preset values. The process occurs in a tightly closed retort with forced atmosphere circulation, and the atmosphere pressure is continuously adjusted. The exhaust gases are combusted in a small utilization burner.

Catalog excerpts

Nitriding and Ferritic Nitrocarburizing (FNC) furnaces-1

ZeroFlow Gas nitriding technology

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Nitriding and Ferritic Nitrocarburizing (FNC) furnaces-2

ZeroFlow IS A UNIQUE TECHNOLOGY THAT ENSURES: It is a modern, energy-saving and ecological gas nitriding Full control of the nitriding processes with the use of technology used in HRN/VRN type furnaces, allowing for ammonia as the only process gas (a dissociator is not the precise development of the preset composition of the nitrided layer, composed only of alpha, alpha + gamma’ or alpha + gamma’ + epsilon phase, while maintaining minimum ammonia consumption, and thus, the minimum emission of post-process gases. Continuous visualization and automatic control of changes in the nitrogen potential...

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Nitriding and Ferritic Nitrocarburizing (FNC) furnaces-3

Full control of the nitriding processes with the use of ammonia as the only process gas (a dissociator is not needed). Possibility of precise control of the white layer thickness Continuous control of hydrogen level in the furnace. The innovative nature of ZeroFlow technology enables a significant saving of process gases, in particular in the case of long-term nitriding processes. HRN and VRN furnaces equipped with ZeroFlow technology Full automation and visualization of heat treatment. are retort nitriding furnaces with a horizontal or vertical feeding Industrial computer equipped with the SCADA...

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Nitriding and Ferritic Nitrocarburizing (FNC) furnaces-4

SECO/WARWICK Invention Meets Reliability SECO/WARWICK is the 1st Choice Supplier of Solutions for Heat Treatment and Metallurgy. We create innovative products that provide our customers with reliable, safe and environmentally friendly solutions for heat treatment and metallurgy and ensure the economic efficiency of their businesses. Expertise includes end-to-end solutions in 5 categories: vacuum heat treatment, atmosphere, and aluminum thermal processing, controlled atmosphere brazing of aluminum heat exchangers and vacuum metallurgy. SECO/WARWICK Group, with 7 companies located on 3 continents,...

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