Advanced Nitriding Solutions For Surface Hardening

 A gas nitration furnace is used to create a very hard surface on extrusion dies. Both brand new and used matrices are nitrated between each use as they get older. It is usually performed at 535 degree C ammonia rich atmosphere. Advanced Nitriding is started when gaseous ammonia is cleaved or "dissociated" by steel surface as a catalyst approx 480 degree C. Active nitrogen generated this reaction is moving towards steel and combined with chromium and other alloy components to form the relevant "nitrides". Understanding of physics and thermodynamics of the nitriding process has grown tremendously since then the original "discovery".

Nitriding

Nitriding is started when gaseous Ammonia is broken down or "dissociated" steel surface as a catalyst approx 480 ° C. Active nitrogen formed over time this reaction is moving towards

steel and combined with chromium and other alloy components to form it the relevant "nitrides". These nitrides are extremely difficult and increase the average hardness

steel surface layers. Usually processes double hardness original steel.

It is important to understand the basics process before choosing the oven, which will be a production tool and hopefully friend up to 20 years.

 Plasma nitriding as a diffusion process is the oldest plasma surface treatment process for metals. Although the use of this process in industry is already well developed and proven, there are still a number of scientific issues in the understanding of the process and, consequently, some problems and limitations in increasing it for industrial use. Therefore, it is necessary to obtain repeatable results for different workpiece geometries and different load values. Correlations between different plasma and treatment parameters should be considered, especially in large plants.

To understand process processing using some simple but impressive models, the difficulty of processing single parts or mixed loads has been explained. For the cost-effective use of plasma nitriding equipment, some guidelines are given for the use and selection of a suitable process and device. Using a pulsed DC power supply for plasma production can solve most of the industrial problems of the past. Industrial experience in the use of the plasma nitration process is provided.