Recently, China's active photonic crystal fiber made significant progress. Shanghai Optical's high-power laser unit technology research and development center of quartz fiber materials group successfully prepared a core diameter greater than 50 μm, NA is less than 0.03 large diameter photonic crystal fiber. Large-field photonic crystal fiber in the military, industrial processing and other important potential applications, NKT company introduced 40/200 and 85/260 two wide range of optical fibers, and occupy the vast majority of the market, but the two fibers in the country The price is high. The domestic photonic crystal active optical fiber preparation technology lags behind, can not be prepared with a core diameter greater than 30μm very low NA large mode field photonic crystal fiber, long-term dependence on imported products, which greatly limits the domestic research and development of ultra-short pulse fiber laser amplifier . This breakthrough breaks the monopoly of high brightness large-mode photonic crystal fiber production technology mastered by only a handful of companies such as NKT in the world, laying the core of the laser material for the development of large-energy ultra-short pulse fiber laser amplifiers in China. For SUMITOMO Cylinder Seal Kit
Maintenance of Sumitomo hydraulic cylinder seals
Daily maintenance and upkeep can effectively solve the sealing problem of hydraulic cylinders, extend the service life of hydraulic cylinders, and improve the work efficiency of construction machinery.
For Sumitomo Cylinder Seal Kit, For Sumitomo Center Joint Seal Kit, Sumitomo Center Joint Seal Kit, Sumitomo Bucket Cylinder Seal Kit Safe Seal Technology Co., Ltd. , https://www.jolseals.com
1. Regularly check the wear of the hydraulic cylinder seals, and if severe wear is found, it should be replaced in a timely manner.
2. Clean the hydraulic cylinder seals to prevent impurities such as dust and sand from entering the interior of the seals.
3. Use appropriate hydraulic oil and avoid using expired or non compliant hydraulic oil to avoid damage to the hydraulic cylinder seals.
4. Avoid using hydraulic cylinders under excessive pressure or load to avoid damage to the seals.
5. Regularly check the liquid level and pressure of the hydraulic cylinder to ensure its normal operation and avoid damage to the sealing components due to hydraulic cylinder failures.
6. When the hydraulic cylinder is stopped for a long time, regular maintenance should be carried out, such as applying anti rust oil, to prevent aging or deformation of the sealing components.