Gas Soft Nitriding Treatment

Gas soft nitriding treatment (GSN) is a method of putting the products into a furnace with an atmosphere mixed by NH3 gas and a small amount of CO2 gas, processing at a temperature of about 400℃～600℃ (normally 580℃) to create a compound layer on the product surface.

This compound layer has very good abrasion resistance, frictional heat resistance and corrosion resistance. Comparing with Nitriding treatment, we can treat in the short time by GSN treatment method to achieve the target of cost down. Furthermore, because it is treated at a low temperature, the product is less likely to warp, and change in size almost does not occur.

At PPV, since 2006, we started GSN treatment for automotive compressor parts. Up to now, we have invested in a total 6 furnaces including batch type and pit type. We receive processing orders not only for auto parts but also for motorcycle parts and construction equipment parts.