Environmentally friendly, pollution-free heat treatment that demonstrates excellent characteristics of a new type of nitriding method.
Acid nitriding is a nitriding method that differs from conventional nitriding methods by adding an appropriate amount of oxygen or air to ammonia gas. Developed by Nissan Motor Co., Ltd.'s Central Research Institute under the name NN method as a non-polluting nitriding method that does not cause cyanide synthesis in the processing atmosphere during the 1960s, when pollution became a social issue, this technology has been introduced and put into practical use by Onex Co., Ltd., which has since made its own improvements. Onex Co., Ltd.'s acid nitriding is based on the ON process and includes three types of processes: ONO and ONOR, each possessing excellent characteristics. Compared to gas soft nitriding, acid nitriding shows almost the same properties in wear resistance and fatigue strength, but it has the added features of excellent corrosion resistance, seizure resistance, compatibility, and a beautiful black appearance. For more details, please contact us or refer to the catalog.
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【Features】 ○ Pollution-free heat treatment ○ High surface hardness and excellent wear resistance ○ Improved fatigue strength due to surface residual compressive stress ○ Enhanced compatibility and anti-seizing properties due to the porous nitrided layer formed on the surface ○ A beautiful glossy black appearance is achieved ○ Minimal deformation can be maintained due to processing in the low temperature range of 400 to 600°C ○ Applicable to most iron-based metals such as structural steel, shaped steel, heat-resistant steel, and cast iron ○ The depth of the compound layer (white layer) can be controlled by regulating conditions such as gas composition ● For more details, please contact us or refer to the catalog.
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The global landscape is undergoing significant changes with the advancement of globalization, including the rise of the EU, China, and India, among other Asian countries. In the midst of these changes, we are not allowed to be complacent with the current situation; we are constantly required to undergo self-transformation to adapt to change. As a specialized company in metal heat treatment that supports the foundation of industries, Orenex has been engaged in heat treatment across a wide range of fields, including automotive, industrial machinery, machine tools, and construction machinery-related parts, earning high trust from our customers regarding quality. Utilizing our know-how based on over half a century of heat treatment technology, we are committed to improving quality and productivity while fulfilling our social responsibilities, including addressing environmental issues, and we will boldly challenge new heat treatment technologies and fields. Additionally, the Orenex Group offers services in cargo transportation and information system development, in addition to heat treatment, to meet the diverse needs of our customers.