Enhanced durability and corrosion resistance also serve to significantly increase overall effective barrel life. During the nitriding process, a combination of nitrogen and carbon is diffused into a metal surface using a high-temperature salt bath. Nu-Tride ® Salt Bath Nitriding Q.P.Q.™. Salt bath Nitriding/Nitrocarburizing is a process that is used to protect a metal surface and enhance its wear and corrosion resistance. Nitriding Salt: Meproche N4 and Meproche N2; Nitriding Fluid: Meproche 5151; Nitro Carburizing Salt: Meproche N485; Carbonitriding Salt: Meproche N465; Oxidizing Salt: Meproche MT341; Nitrocarburizing Fluid: Meproche 5152 CN; Read more The Salt Bath Nitride process is a Thermo Chemical treatment that improves wear resistance and corrosion resistance of ferrous metals with little or no dimensional change. The salt bath nitriding equipment is fully hooded and ventilated. Every quarter somebody would leave some oil in a hole and shoot molten salt out of the pot. This is used as a supplemental addition to center the excessive salt drag-out during normal operation which tends to rapidly deplete the nitrate level below the recommended operating level of 5 % – 15 %. Accuracy of Criterion salt-bath nitrided barrels are on par with untreated match grade stainless-steel barrels. Delamin® ST [Oxidizing Bath Starter Salt] is a proprietary quench salt used only when starting a new quench bath. System layouts can vary from straight-line, “L”, “U” or “O” rail configurations depending on your requirements. We offer: Nu-Tride ® Salt Bath Nitriding (equivalent to Melonite ® process) Nu-Tride ® Salt Bath Nitriding Q.P. The heat requirements for liquid are lower than for the gas technique, and the hardened compound on the surface of the component is thicker. However you do it, it isn't nitriding unless you have the nitrogen donor. The temperature used is typical of all … It ensures dimensional stability of processed parts and core properties which remain unchanged, provided heat treatment temperatures were higher than the liquid nitriding temperature, i.e. We manufacture Nitriding, Nitro-carburizing Salts and Fluids used in Salt Bath Nitriding and Gas Nitriding. It contains carbonate compounds in addition to the alkaline nitrate and hydroxide … 560° - 570° C. Liquid nitriding uses a cyanide salt mixture in a bath. ISONITE® QPQ Nitriding. Handling systems range from simple manual hoists to fully automated, “recipe driven” systems. It is a thermochemical diffusion process whereby nitrogen-bearing salts generate a controlled release of nitrogen at the interface of a ferrous part. During MELONIZING® of the salt bath nitriding process, a nitro carburized layer is formed consisting of the outer compound layer (ε-iron nitride) and the diffusion layer thereunder. It is also known as Liquid/Salt Bath Ferritic Nitrocarburizing (FNC) process. The salts used also donate carbon to the workpiece surface making salt bath a nitrocarburizing process. This permanently changes the molecular structure of the surface to provide a higher level of protection than plating or coating the material surface. Most have gone to Ion Nitriding for stainless or gas carburizing for mild steel. Salt bath nitriding. Salt Bath Nitriding is performed at 560° - 570° C following necessary heat-treatment for core properties and finish machining. Salt-bath nitriding [3] can be an economical method providing that both the salt-bath chemistry and cleanliness are maintained (Fig. Gas nitriding disperses gas to the metal via heat in a furnace or sealed atmosphere. I remember doing it in trade school about 100 years ago. 6). In salt bath nitriding the nitrogen donating medium is a nitrogen containing salt such as cyanide salt. 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