Annealing furnace ZeroFlow

chambertemperingnitriding

Modern, ammonia and energy-saving and ecological gas nitriding process used in VR/PVR type furnaces.Nitriding and Ferritic Nitrocarburizing (FNC) furnaces.ZeroFlow is a modern variant of controlled gas nitriding ensuring the maximal process effectiveness and efficiency, significantly exceeding the results of traditional solutions. It allows for precise shaping of any nitrided layer composition while maintaining minimal media consumption and post-process gas emissions, meeting the most stringent environmental protection regulations. This is especially important for mass production e.g. gears, pinions, brake discs etc., where the benefits of ZeroFlow technology will be most significant.​ The uniqueness of the ZeroFlow technology lies in the fact that during the nitriding process, when the load does not absorb nitrogen from the atmosphere (e.g. during the reduction of nitrogen potential or in the diffusion phase), the introduction of ammonia into the furnace is completely stopped (zero flow) and the furnace remains tightly closed. This is a unique feature of ZeroFlow technology and the horizontal type VR and pit type PVR furnaces as well as automated process lines. It enables the implementation of the most efficient nitriding processes, minimizing process duration, energy consumption, process gas consumption, and post-process gas emission. Compared to traditional processes, ZeroFlow reduces ammonia and nitrogen consumption many times over, as well as gas emissions to the environment (up to 10 times), and at the same time contributes to energy savings. It is a technology that protects the natural environment and supports sustainable development. The ZeroFlow technology maintains full versatility of conventional gas nitriding while minimizing media consumption compared to competing technologies. Horizontal type VR and pit type PVR (including automated process lines) furnaces equipped with ZeroFlow technology belong to the family of retort nitriding furnaces with horizontal or vertical loading and vacuum purging, available in a wide range of sizes and workspace capacities. These furnaces are compact, equipped with an internal atmosphere mixer and a cooling gas blower to accelerate the load cooling in the retort. The special design of the retort and heating elements ensure the furnace’s long-term and reliable operation in industrial conditions. In VR and PVR furnaces, the nitriding process is carried out in automatic mode with the possibility of combining individual devices into automated technological lines for mass production. The furnace can be equipped with nitrocarburizing (FNC) and post-oxidation installations. In addition, these furnaces can be used for a wide range of tempering and annealing processes, which further increases their versatility. / Accurate shaping of any nitrided layer composition / Maximum efficiency and process performance / High quality and repeatability of results / Compliance with the environmental protection regulations requirements / Furnace’s reliable operation in an automatic cycle / Precise control of the nitriding atmosphere directly in the retort / High accuracy of temperature control, uniformity +/-3oC / Computer control system based on PLC + IPC Siemens standards / Full automation and visualization of the heat treatment process / Simple and intuitive furnace operation and process recipe preparation / Compliant with AMS-2750, AMS-2759 and CQI-9 standards / Data archiving and reporting system / Preventive Maintenance function / Remote Diagnostics / Compact design