By way of a dedicated commitment to R&D, years of heat treating services and close relationships with our customers from a variety of industries, Nitrex has been able to perfect its heat treating technologies and has developed proper nitriding / nitrocarburizing processes for many applications. The following are just some examples.
Crankshafts
High performance automotive and aircraft engine crankshafts are nitrided for better fatigue resistance and wear properties on bearing journals.
Nitreg® treated crankshaft
Shafts
Properties of small shafts exposed to atmospheric conditions and/or other corrosive environments are frequently treated in an in-process post-nitriding oxidizing treatment. Such components have excellent wear and corrosion properties, as well as an attractive appearance.
Appearance of ONC®-treated automobile wiper axles
Tooling
Nitriding properties required for dies and other tooling are high wear resistance, impact strength, resistance to softening, and high dimensional stability. Nitreg® nitriding with its precise control of surface concentration of nitrogen makes it possible to obtain reproducible properties of treated parts, and consequently improve tools performance..
Boring Tool Holders
Landing Gear Mechanism
Aerospace specifications often call for controlled nitriding with limited white layer capable of producing deep diffusion cases on Nitralloy 135M and other alloyed steels. Such well controlled nitriding produces a hardened case that has excellent wear and toughness properties. The reduction in white layer thickness eliminates the need for costly finishing operations that might otherwise have been required.
Landing Gear – Hangers
Shafts (Stainless Steel)
Front Half Shafts for Aircraft Engine
Forging / Forming Dies
Forging and forming dies made of tool steels, alloy steels, cast steels or cast iron are frequent visitors in a heat treating shop. The dies are vacuum hardened and tempered, flame hardened, flood-welded, and nitrided, as applicable, for better life.
Forging Dies
Gears
Nitriding gears for applications ranging from heavy-duty machinery to small automotive accessories enables lower manufacturing costs. For one customer, this meant eliminating costly finishing operations needed after carburizing.
Timing Gears
Piston Rings
Nitrided piston rings show high surface hardness at elevated temperatures, and good sliding wear resistance with a low coefficient of friction.
Springs
Springs are routinely nitrided to enhance their fatigue resistance to premature failure.
Compression springs
Rubber or Plastic Molds
Rubber or plastic molds and forming dies often only require wear resistance, which can be achieved by gas nitriding.
Articulated moulds for hot-runners
Fuel Injectors
Nitriding is the appropriate method for improving the wear resistance of small cross-section parts or those that easily lose their shape. A good example of such a part is the fuel injector, which requires a high wear resistant surface necessary to prevent abrasion by a high-velocity fuel stream.
Aluminium Extrusion Dies
Extrusion dies are nitrided and re-nitrided several times to extend their die life. Nitriding parameters are adjusted to the expected die duty cycle resulting in significant cost reductions and virtual elimination of unscheduled press shutdowns.
More Nitriding / Nitrocarburizing Applications Listed by Type
Please contact us for more information on these or any other applications
Automotive components
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Precision parts
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Mechanical components
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Tool & die
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