HiTech Aero

NADCAP Brazing and Welding

AS9100:2009C
ISO9001:2008


Brite Brazing

NADCAP Brazing and Welding

ISO 9001:2008

Thermal Treatment Center

ISO 9001:2008

Brazing and Metal Treatment

ISO 9001:2008

Commercial Induction

Walker Heat Treat

   

Welding Services:

  • Resistance Welding (Spot, Seam, Projection)
  • AC7110/4S Rev A Nadcap Suppl Audit Criteria for Resistance Welding
    Brazing Services:
  • Supplement B - Induction
  • Torch/Induction
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    Phn: (216) 881-8100
    Fax: (216) 426-6690
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    1101 East 55th Street
    Cleveland, OH 44103-1046



     
    Nitridetek is a surface engineering process for the treatment of steels and cast irons carried out in the temperature range 550-7400 C (1020-13500 F) using a gaseous nitrogen-bearing atmosphere. The treatments develop iron nitride surface compound layers between 5-50 mm (0.0002"-0.002") thick, supported by a nitrogen rich diffusion zone in the substrate. Through selection of treatment temperature, time and nitrogen potential of the atmosphere, the structure, composition and hardness of the compound layer and the subsurface diffusion zone are controlled. An innovative oxidation technique, combined with specially formulated aqueous quenchant and organic sealant, are incorporated when corrosion resistance is required.

    **Wear Resistance & Lubricity
    The high surface hardness of the compound layer, and the presence of surface microporosity capable of retaining lubricant, produces an excellent wear resistant surface.

    **Bearing Characteristics
    Because of the ability to retain oil and the inherent wear resistance, Nitridetek treated surfaces may operate in contact with one another without the need to employ individual ball bearings.

    **Resistance
    Specific hardness profiles indicate the capability of Nitridetek treated components to resist indentation from point contact surface loading.

    **Strengthening
    When non-alloyed steels are rapidly cooled after Nitridetek treatment, strengthening of thin sections occurs. This results in an increase in both the yield strength of the base material and its fatigue strength.

    **Dimensional Control
    Traditional hardening practices may result in distortion and poor dimensional control because of metallurgical phase changes when rapidly quenching from high treatment temperatures. During Nitridetek treatment these changes do not occur, therefore allowing the treatment of close-tolerance precision parts, especially thin cross section and precision components.

    **Aesthetic Finish & Corrosion Resistance
    Nitridetek treatment produces an aesthetically pleasing black surface finish, and combining this with an organic sealant retained in the microporous layer, imparts corrosion resistance superior to that of electroplated components, and comparable to that of medium grades of stainless steel.
     







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