ZeroFlow technology allows for maintaining full versatility of conventional gas nitriding while optimising process gas consumption, i.e. a significant reduction thereof concerning competitive technologies. Depending on the type of processed details, steel grade and final requirements, this method allows for saving gas consumption, including ammonia, by up to several dozen percents as compared to traditional methods.
Modern gas nitriding with the use of ZeroFlow technology, using Seco/Warwick products, perfectly fits into the current trends and demands of modern industry, like automotive is.
On one hand, we deal with an innovative method of process control which maximises the use of the factors that influence processing costs, on the other hand, there is modern equipment that improves the economy through the further reduction of energy consumption and cycle times.
Savings, flexibility, precision, and simplicity of the ZeroFlow process makes it the ideal replacement for traditional nitriding systems.
Technology ordered by Harsha is dedicated for ferritic nitrocarburising of bearing cages and was ordered to: improve quality of nitrocarburizing, reduce total cycle and operation cost, meet specific color requirements, and finally provide excellent batch uniformity.
Ferritic nitrocarburising furnace for heat-treating bearing
The furnace is equipped with a vacuum system, gas control system, turbo cooling, atmosphere cooling system and post oxidation system to get a material very uniform grey colour and other tribological properties to meet the specifications of leading bearing manufacturers.
The nitrogen potential control is based on hydrogen analyser and allows measurement and regulation of nitrogen atmosphere potential by measuring the hydrogen content in the furnace atmosphere. Also, all the process parameters like ammonia flow, carbon dioxide flow, a ratio of carbon dioxide to ammonia, furnace pressure are automatically regulated. The furnace control system employs a cascade-based temperature control system to regulate the furnace temperature very closely to meet the requirements of the customer.
