Tungsten alloys for aerospace applications
Tungsten alloys are best known for their use in the aerospace industry, where counterweights often need to be placed in limited space. As the size of counterweight is greatly reduced, more weight distribution needs to be controlled per unit volume. The tungsten alloy counterweight can increase the sensitivity of the control mechanism and control the operation of the aircraft within acceptable limits.
Tungsten alloy balance weight
Vibration in dynamic components of aircraft engine and propeller propulsion systems is undesirable. A large amount of counterweight can be used to reduce or eliminate vibrations caused by mass imbalances in external rotating parts. In addition, counterweights are incorporated into many high control systems designed for propellers as a fail-safe mechanism. In flight, the propeller is hydraulically controlled to maintain the correct Angle. Flight control surfaces such as elevators, rudders and ailerons are often weighted to optimize performance. Tungsten alloys offer designers several advantages over traditional balancing materials such as lead or steel. The high density of tungsten alloys allows the use of smaller components, which reduces the overall system size. Unlike lead, which can exhibit creep at room temperature, tungsten alloys are stable and thus can be used to emphasize mechanically operated parts without the need for additional manufacturing and packing.
Tungsten alloy rotor blade
Other applications of tungsten alloys in the aerospace industry include a large number of counterweights for satellite and helicopter rotor blades, missile and aerospace gyro control. These materials are also used in the cockpit to increase the required vibration warning control, as opposed to the shock-proof motion function. Similarly, fly-by-wire controls introduce a small batch of tungsten alloy into the fly-control joystick to increase inertia and thus rediscover the "feel" that connects the elevator to the ailerons under traditional controls.
Rotor blade
Tungsten alloy can be used in addition to counterweight, but also for aircraft manufacturing and maintenance business. To reduce the vibration caused by the rivet gun, a bucking bar (" rivet tow card "or" hand anvil ") is needed to absorb the external force. Vibrations can damage the nerves, muscles and bones of the user, causing carpal tunnel syndrome (white fingers). Many airlines now use tungsten alloy bucking bars to reduce the impact of vibration.
One of the major needs of today's aerospace industry is to accelerate the growth of long-distance passenger cargo transportation while reducing fuel consumption and pollution. Products and components made from high performance tungsten alloys are critical for future large civil aircraft, ultrasonic aircraft and high performance aircraft. There will be breakthroughs in high temperature resistant materials to facilitate the improvement of propulsion systems such as aircraft and rocket propulsion turbines, as well as the outer thermal layer structure of hypersonic aircraft.
High-end materials can reduce fuel consumption: Increasing the gas turbine inlet temperature of natural gas greatly contributes to increasing aerospace energy efficiency. Materials must be able to withstand high requirements such as hot gas corrosion resistance, low expansion, high creep resistance and superior fatigue resistance.
