Quartz tube, made by melting high-purity silicon dioxide, is a special glass material with excellent physical and chemical properties. Its high purity, high temperature resistance, good thermal stability, excellent light transmission performance, and good electrical insulation make it an indispensable key material in the aerospace industry, which requires harsh environments and reliability.

Key application scenarios

The characteristics of quartz tubes make them play an important role in multiple core systems in aerospace, and their main applications can be summarized into the following categories:

1. Thermal protection and observation system:

Application products: High temperature observation window, flame detector window, aircraft test bench observation mirror.

Application description: In aircraft engine testing, rocket exhaust monitoring, and thermal protection systems for re-entry vehicles, it is necessary to be able to directly withstand extreme high temperatures (up to 1000 ° C instantly) and maintain a transparent observation window. Quartz tubes are made into observation windows, allowing engineers and sensors to directly observe combustion processes or high-temperature areas without being melted or severely deformed.

2. Spacecraft attitude control and propulsion system:

Application products: Satellite attitude control thruster cavity, ionization chamber.

Application description: In the electric propulsion systems of satellites and space probes (such as ion thrusters and Hall thrusters), quartz tubes are often used as discharge chambers or insulation components for thrusters due to their excellent electrical insulation and high purity. It can effectively isolate high-voltage electric fields, and its smooth and inert surface inside helps maintain stable plasma generation and confinement, ensuring efficient and reliable operation of the thruster.

3. High precision sensing and navigation system:

Application products: Loop fiber optic coil skeleton and resonant cavity of fiber optic gyroscope (FOG).

Application description: Fiber optic gyroscope is the core component of modern aviation and spacecraft inertial navigation systems. The core part, the fiber optic coil that surrounds in a loop, requires a skeleton with stable dimensions and extremely low thermal expansion coefficient (about 5.5 × 10 ⁻⁷/° C) to support. Quartz tube is an ideal material for manufacturing this skeleton, which can minimize the influence of temperature changes on the length of the optical path, ensure the measurement accuracy and zero stability of the gyroscope, and is crucial for the precise positioning and attitude control of the aircraft.

4. Lighting and signal system:

Application products: High intensity light tubes for airplane runways, special lighting housings for spacecraft.

Application description: High intensity lighting for airport runways and certain special lighting fixtures on spacecraft that require high temperature resistance and thermal shock resistance often use quartz glass as the lamp tube or shell. It can withstand the high temperature generated by the instantaneous ignition of the filament and resist the thermal shock caused by harsh weather conditions such as rain and snow, ensuring the reliability of the lighting system in critical tasks.

5. Material preparation and scientific research experiments:

Application products: Space materials science experimental containers, crystal growth crucibles.

Application description: In the experiment of preparing new materials in microgravity environment in space, quartz tube is used as a container for suspension melting and crystal growth due to its high purity and high temperature resistance. It can avoid introducing impurities, ensure the accuracy of experimental results, and provide a foundation for the development of new generation aerospace materials.

Core advantages of the product

Quartz tubes are capable of withstanding the aforementioned rigorous applications due to a series of unique comprehensive advantages:

Excellent thermal stability: With an extremely low coefficient of thermal expansion, it can withstand drastic temperature changes without breaking, and has a softening point of up to 1730 ° C.

Excellent transparency: It has good transmittance in a wide spectral range from ultraviolet to infrared, suitable for various optical and observation scenarios.

Superior electrical insulation: With a resistivity of up to 10 ⊃1;⁸Ω· cm at room temperature, it is an ideal high-temperature insulator.

Extremely high chemical inertness: except for hydrofluoric acid and hot phosphoric acid, it hardly reacts with other acidic substances and has strong corrosion resistance.

High mechanical strength and low density: While maintaining high strength, the lightweight texture helps to reduce weight in aerospace vehicles.

Key issues to be addressed

The application of quartz tubes directly addresses and solves a series of core challenges in the aerospace field:

1. Solved the problem of "visual blind spots" in extreme high temperature environments: By providing high-temperature resistant observation windows, direct monitoring of key processes such as engine combustion and re-entry becomes possible, providing first-hand information for fault diagnosis, performance optimization, and safety assurance.

2. Ensuring the reliability of high-precision navigation: As the core skeleton of fiber optic gyroscope, its ultra-low thermal expansion coefficient ensures the accuracy and stability of the navigation system in complex temperature environments, which is the cornerstone for aircraft to achieve autonomous and precise navigation.

3. The high efficiency and stability of the electric propulsion system have been achieved: as the insulation chamber of the thruster, it creates a pure and stable environment for the generation and acceleration of plasma, improving the propulsion efficiency and working life, which is crucial for long endurance satellites and deep space exploration missions.

4. Satisfies the dual requirements of lightweight and high reliability: In lighting, sensing and other systems, quartz tubes provide irreplaceable heat resistance, insulation and stability performance with a lighter weight, meeting the stringent requirements of aerospace vehicles for every gram of weight.

Quartz tubes, with their unique physical and chemical properties, have been deeply embedded in multiple key chains of the aerospace industry. From thermal protection observations that ensure flight safety, to inertial navigation that determines flight accuracy, to electric propulsion systems that drive deep space exploration, quartz tubes play the role of "small components, big roles". Its application value lies not only in solving material bottlenecks in specific environments, but also in providing reliable basic material support for the continuous progress of aerospace technology.

Luverre Quartz can manufacture customized quartz tubes in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz tubes, opaque quartz tubes, milky white quartz tubes, red quartz tubes, and so on.