Higher altitudes create condensation, which leads to freezing, which creates dripping upon descent causing corrosion. 300 Below’s cryogenic processing can help minimize corrosion by reducing the available surface area for oxidation.
What military aviation parts benefit from cryogenic processing?
- Ring, pinion, and gearing inside helicopters
- Helicopter swash plate and torque rotors
- Helicopter turbine blades
- Guy wires and any wiring used in a pulley system
- Aircraft cabins
- Jet engines
What is cryogenic processing?
- An extension of the heat treatment process
- Ultra low temperature treatment of metals using liquid nitrogen released as a gas
- Computer controlled process ensuring descent and ascent of temperatures in equilibrium with military aviation parts
- The most cost effective method to extend life and reduce wear for all military aviation parts
What are the most common problems with the military aviation parts?
- Cycle fatigue
- Weak moisture resistance
- Weak dust and sand particles resistance
- Aircraft cabin pressurization and depressurization
- Crack propagation failures
How can cryogenic processing help solve the military aviation part problems?
300 Below’s cryogenic processing technology can ensure 300% improvements in minimizing the erosive wear in turbine blades from particulate matter erosion, especially with airborne particulate. That was the case in Laos and Vietnam where corrosion issues were associated with high moisture. In Saudi Arabia, abrasion wear problems were caused by the dust and sand particulate. When it comes to cycle fatigue, this problem is caused by constant pressurization and depressurization of an aircraft cabin, or starting and stopping a jet engine (up and down in temperature).
Some people have a hard time envisioning stress, yet everyone has witnessed it before by folding a piece of paper. Compressive stress (inside the fold) and tensile stress (outside the fold) occurs on both sides of this fold. Cryogenic processing is similar to ironing out that fold.
While cryogenic processing cannot guarantee a perfect improvement, it does yield about 74% improvement in “stress relief” of the surrounding areas due to thermomechanical compression and expansion uniformly at a molecular level.
In actuality, we are more of a process that imparts stress uniformly throughout the structure, thereby we call it “stress relief” from reducing the cracks, tears, gaps and overlaps of the molecular structure much like ironing out the fold through making the structure smoother.
Higher altitudes create condensation, which lead to freezing, thereby creating an effect of liquids dripping on metal surfaces upon descent, ultimately causing corrosion. Cryogenic processing minimizes this corrosion by reducing the available surface area exposed to oxidation.