Wednesday, January 12, 2011

LIQUID NITRIDING

Liquid nitriding is a subcritical surface enhancement 
process with the longest track record of success of any case hardening
technology.   It is widely used to enhance the performance of titanium, 
chromium, and aluminum alloyed steels, as well as low alloy materials,
and stainless steels.
Salt bath ferric nitrocarburizing is also known as liquid ferritic nitrocarburizing or liquid nitrocarburizing and is also known by the trademarked names Tufftride and Tenifer.
The most simple form of this process is encompassed by the trademarked Melonite process, also known as Meli 1   
In a liquid nitriding bath, nitrogen-bearing salts produce a controlled
and highly uniform release of nitrogen at the interface of the workpiece. 
Nitrogen diffuses into, and chemically combines with, nitride-forming
elements in the metal, producing, through catalytic reaction, a tough,
ductile compound layer with exceptional engineering and wear properties.
This compound layer has wear properties that are 200% to 1000%
greater than the original material, and greatly enhanced resistance
to corrosion, and galling.   
Subjunctive to the compound zone is another distinctive region, 
the diffusion zone.  This evolves from progressive diffusion of the 
nitrogen, and consists of a solid solution of nitrogen in the base material.  
The diffusion zone contributes a critical fourth benefit of salt bath nitriding:substantial enhancement of fatigue strength, typically 20% to 100%. 
Liquid Nitrocarburizing / liquid nitriding is a highly active case hardening process;
it is more intense, and more efficient than gas nitriding, or ion nitriding.  
Liquid nitrocarburizing / liquid nitriding is performed following heat treating and
finish machining.  Dimensional stability of processed parts is not changed,
and core properties are uncompromised, providing heat treat temperatures
were higher than the salt bath nitriding solution (typically 1060-1075°F). 
Parts that have been processed in a salt bath nitriding / liquid nitriding
solution can be quenched in water, air, or oil.
In M.K.Enterprises we have a furnace doing exactly what is mentioned above, the dimensions of the furnace present here are:-

LIQUID NITRIDING(all dimensions are in mm)
Diameter             600
Depth of furnace   700

The process duration is about 3-6hrs which helps us to save considerable amount of quality time i.e. this process is very much faster than the GAS and ION Nitriding processes.
Apart from this we assure you quality as mentioned in our quality policy mentioned below:-

QUALITY ASSURANCE:
 We provide 1000-1100 Vickers hardness and 700-1000 microns depth or as per the metallurgical combustion of your job's liquid Nitriding requirement. 



We at M.K.Enterprises also assure you minimum Distortion . This means there is minimum amount of chemical precipitate deposition over the workpiece...