Tungsten Disulfide Lubricated Astronomical Telescope

Tungsten disulfide is a solid lubricating material with good lubricating performance and excellent high temperature and extreme pressure resistance. So it can meet the lubrication requirements of astronomical telescope. Usually, the lens tube coated with tungsten disulfide helps us observe the celestial bodies clearly.

Astronomical telescope is an important tool for observing celestial bodies, which propels human's understanding of the universe. The instrument is generally equipped with a primary mirror and a finderscope. The finderscope, also known as the sight, is used to find the target; the primary mirror is used to observe the target. The accurate measurement of astronomical data depends on the stable and long-term use of two lens tubes. Therefore, their lubrication and maintenance is particularly important.

What kind of material can be used to lubricate the telescope lens tubes?Tungsten disulfide may be the first choice. The material is not only easy to use, but also has the following good properties:

1. Good lubrication performance.

Tungsten disulfide has low friction coefficient. The dynamic friction coefficient is 0.03 and the static friction coefficient is 0.07.

2. Good resistance to high temperature and extreme pressure.

Tungsten disulfide has stable structure and can work stably under the heavy load of 10000psi. Morever, it has a wide range of operating temperature, from - 460°F to 1200°F.

3. Strong adsorption capacity of matrix.

Tungsten disulfide can adhere to the surface of matrix tightly and lubricates the friction surface well.

4. Corrosion resistance.

Tungsten disulfide can slow down the corrosion.

5. Non toxic, safe and environmental friendly.

Therefore, tungsten disulfide can be applied on telescope lens tubes, which will reduce the friction and energy loss during the rotation and improve their service lives greatly. As the damage of lens tubes will decrease the accuracy of the observation data, the lubrication with tungsten disulfide ensures the stable measurement to a large extent.

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