What effect does the material of self-locking tuning screw of 5G filter have on its application in aerospace field?
Strength and hardness
Anti-vibration performance: In the aerospace field, the equipment faces a strong vibration environment, such as the vibration of the aircraft engine and the huge impact force during the rocket launch. The screw material with high strength and hardness can better resist these vibrations and impacts and prevent the screw from loosening. For example, the self-locking tuning screw of 5G filter made of titanium alloy has high strength and moderate hardness, which can maintain good stability in high vibration environment and ensure that the tuning function of the filter is not affected.
Anti-fatigue performance: aerospace equipment has a long running period and complex working conditions, and screws need to bear repeated loading and unloading stresses. The fatigue resistance of materials is very important. Nickel-based alloy, a material with excellent anti-fatigue performance, can keep its structural integrity under long-term alternating stress when it is used for self-locking tuning screws, such as stress changes caused by temperature and pressure changes during multiple take-off and landing of aircraft or satellite in orbit, so as to avoid filter failure caused by fatigue fracture.
Corrosion resistance
Adaptability to harsh environment: the aerospace environment requires extremely high corrosion resistance of materials. During the flight, you may encounter high humidity and salt fog (coastal flight). In the space environment, there are also various corrosive substances. For example, the stainless steel (such as 316L stainless steel) 5G filter self-locking tuning screw contains elements such as chromium and nickel, which can form a dense passive film in these harsh environments, effectively resist corrosion, and ensure the performance and life of the screw, thus ensuring that the filter will not fail due to screw corrosion during long-term use.
Chemical compatibility: Aerospace equipment may come into contact with various chemicals, such as rocket fuel and aircraft hydraulic oil. Suitable screw materials need to have good chemical compatibility with these chemicals. For example, some self-locking tuning screws made of special ceramic materials can maintain chemical stability in the face of strong oxidizing rocket propellant without chemical reaction, thus avoiding material damage caused by chemical corrosion.
Electromagnetic performance
Electromagnetic compatibility: There are a large number of electronic equipment in aerospace equipment, which requires strict electromagnetic compatibility. The 5G filter itself is a component for processing electromagnetic signals, and the electromagnetic performance of its screw material will affect the electromagnetic compatibility of the whole system. For example, the screws made of copper alloy have good electrical conductivity and electromagnetic shielding performance, which can effectively reduce electromagnetic interference, ensure the normal operation of the filter in complex electromagnetic environment (such as the electronic equipment intensive cabin of an aircraft or the electronic system of a satellite), and accurately filter and tune electromagnetic signals.
Influence of signal transmission: Electromagnetic characteristics such as dielectric constant of materials will affect the transmission of signals in the filter. Self-locking tuning screws made of some materials with low dielectric constant, such as metal screws coated with PTFE, can reduce signal loss and reflection, and improve the signal transmission efficiency of 5G filters, which is very critical for aerospace communication systems and other application scenarios that require extremely high signal quality.
Thermal performance
High temperature resistance: in aerospace applications, such as near the aircraft engine or the sun irradiation surface of satellites, the temperature changes widely and high temperature environment may occur. Screw materials need to be able to withstand high temperatures without performance degradation. For example, the self-locking tuning screw of 5G filter made of high-temperature alloy material can maintain good mechanical properties and dimensional stability in high-temperature environment, and ensure that the filter can still work normally under high-temperature conditions, and the tuning accuracy will not be affected by the deformation of the screw.
Thermal expansion coefficient matching: Different materials have different thermal expansion coefficients. In the process of temperature change of aerospace equipment, the thermal expansion coefficient of screw material needs to match the materials of other parts of the filter. If the difference of thermal expansion coefficient is too large, it may lead to screw loosening or internal structure deformation of the filter, which will affect the performance of the filter. For example, using aluminum alloy screws with thermal expansion coefficient similar to that of the main material of the filter can keep the compactness and stability of the whole filter structure when the temperature changes.
