MoS2 Coated Fasteners for aerospace and defence
Category
Dry Film Lubrication coating on fasteners
Project Type
Monthly Production
Product/ Service Details
MoS2 Coated Fasteners for Aerospace & Defense
In the extreme environments of Space and Aerospace engineering, a single seized bolt can lead to catastrophic mission failure. As rockets, satellites, and aircraft push the boundaries of speed and altitude, the fasteners holding them together face conditions that render traditional lubricants useless.
Hardai ARMND Engineering Solutions provides high-volume, precision MoS2 (Molybdenum Disulfide) coating services designed to ensure that mission-critical fasteners perform flawlessly under the harshest conditions known to man.
The Challenge: Extreme Environments & "Cold Welding"
Aerospace fasteners—ranging from tiny satellite screws to massive rocket engine bolts—operate in a "danger zone" of variables:
- Vacuum & Cold Welding: In the vacuum of space, the absence of an oxide layer on metal surfaces causes them to fuse together upon contact. This phenomenon, known as cold welding, can seize fasteners permanently, making repairs impossible or causing structural failure.
- Thermal Extremes: Fasteners must survive the transition from cryogenic temperatures (deep space) to extreme heat (re-entry or jet engine exhaust). Standard oils and greases evaporate or freeze in these ranges.
- High Shear Stress: During launch and supersonic flight, fasteners endure immense vibration and load. Without proper thread lubrication, the shear stress can lead to "galling" (surface tearing) and eventual snapping of the bolt.
MoS2 Dry Film Lubrication
Molybdenum Disulfide is the "gold standard" for space-grade lubrication. Unlike liquid lubricants, MoS2 provides a solid-state shield that remains bonded to the fastener threads regardless of the environment.
- Prevention of Metal-to-Metal Welding: The lamellar structure of MoS2 acts as a physical barrier between the mating threads of the bolt and the nut. Even under extreme pressure and vacuum, it prevents the atomic bonding that leads to welding and component breakage.
- Thread-Level Lubrication for Load Distribution: Our coating provides a uniform, low-friction layer on the threads. This allows for: Accurate Torque-Tension Relationship: Ensures that the bolt is tightened to the exact specification without "stiction."Shear Stress Relief: The coating absorbs and distributes the load across the thread geometry, preventing stress concentrations that lead to snapping.
- Extreme Temperature Stability: MoS2 remains chemically stable and lubricious from cryogenic lows up to 400°C in air (and much higher in vacuum/inert environments). This ensures the fastener remains functional whether it's on a satellite in the shadow of Earth or a missile in high-speed flight.
Hardai ARMND Engineering: Mass Production Capabilities
At Hardai ARMND Engineering Solutions, we understand that aerospace projects require both extreme precision and high-volume reliability. We provide monthly mass production solutions tailored for:
- Rockets & Launch Vehicles: Protecting structural joints and engine mounts.
- Satellites: Ensuring deployment mechanisms and housing fasteners don't seize in orbit.
- Missile Systems: Providing long-term shelf-life lubrication that won't degrade over years of storage.
- Aviation: Enhancing the fatigue life of airframe and turbine fasteners.
Why Partner with Hardai ARMND?
At Hardai ARMND Engineering Solutions, we understand that aerospace projects require both extreme precision and high-volume reliability.
- High Load Bearing Prevents thread stripping under G-force loads.
- Non-Evaporative Zero outgassing in vacuum environments (Space-safe).
- Corrosion Shield Provides an extra layer of protection against atmospheric oxidation.
- Mass Production Ready Scalable monthly batches with rigorous quality control.
- Rockets & Launch Vehicles: Protecting structural joints and engine mounts from launch vibrations.
- Satellites: Ensuring deployment mechanisms and housing fasteners don't seize during long-term orbital exposure.
- Missile Systems: Providing long-term "shelf-life" lubrication that won't degrade over years of storage.
- Aviation: Enhancing the fatigue life of airframe and turbine fasteners while reducing maintenance cycles.
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