It hardens a few micrometers from the surface. This is done after finishing, but the previous process is also important.
Plasma ion nitriding involves creating a glow discharge with the furnace body as the anode and the product as the cathode in a low-pressure nitrogen gas atmosphere, resulting in a soft light similar to a neon sign enveloping the product. The energy from the ions heats the product while simultaneously nitriding it. Our company has quickly adopted this plasma ion nitriding equipment to provide higher quality products. ● Extremely low distortion due to low-temperature processing ● High nitrogen potential allows for rapid formation of the nitrided layer ● By adjusting the gas ratio and temperature, the state of the nitrided layer can be controlled ● Good surface roughness due to processing in a vacuum ● Even materials like austenitic stainless steel can be nitrided uniformly
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basic information
■What is Nitriding? Nitriding is a general term for a method of hardening the surface of steel by allowing nitrogen to permeate it. It is characterized by minimal dimensional changes due to heat treatment and low-temperature processing, resulting in less distortion and deformation. By performing nitriding, a nitrogen-containing nitrided layer is formed, which has excellent wear resistance and is said to possess several times the strength compared to a carburized layer. Among the various nitriding methods, plasma ion nitriding uses gases that consider environmental impact, making it a processing technique with minimal safety and environmental effects, thus being friendly to the Earth's environment.
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Applications/Examples of results
■Benefits of Nitriding Treatment ● Low Distortion Due to the low treatment temperature of 450–550°C, it is optimal for precision parts. Among these, plasma ion nitriding is performed in a vacuum, resulting in a surface that is free from oxidation after treatment, and a reduction in surface roughness is also rare. ● Wear Resistance The nitrogen-containing nitrided layer is said to have wear resistance that is 6 to 10 times stronger than carburized layers. By adjusting the gas ratios of hydrogen, nitrogen, and mixed gases, the composition of the chemical layer can be freely tailored, allowing for mechanical properties suited to specific purposes. ● Corrosion Resistance The nitrided layer exhibits excellent corrosion resistance. ● Treatment Time Plasma ion nitriding utilizes the sputtering effect of ionized gas, significantly reducing treatment time compared to conventional nitriding processes.
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Ion nitriding furnace
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Ion nitriding furnace
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Setting
Company information
Heat treatment deals with natural phenomena and imparts the desired functions to steel. Since we cannot change the natural phenomena themselves, the success of heat treatment relies entirely on what happens "before heat treatment." At Mutou Industries, we emphasize education based on "knowledge-based experience," demonstrating our capabilities in hypothesis formulation, proposal-making, and responsiveness. Headquarters and Factory: Yamato City, Kanagawa Prefecture Tokai Office: Fuji City, Shizuoka Prefecture Tohoku Office: Kitakami City, Iwate Prefecture Special Class Metal Heat Treatment Technicians: 2 First Class Metal Heat Treatment Technicians: 15 Second Class Metal Heat Treatment Technicians: 8 Third Class Metal Heat Treatment Technicians: 2 Second Class Metal Materials Testing Technicians: 2 (as of February 2024) We collaborate with processing partner companies to provide consistent support from machining to heat treatment. If you provide us with the drawings, we will ensure the quality after heat treatment in collaboration with the machining industry. We will enter into a Non-Disclosure Agreement (NDA) as necessary.
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