1 inspection cycle: This article Keywords Search: More Pumps Technical Articles Pumps Product Selling Leads PET Film Material Silicon Dioxide Powder, CAS 7631-86-9 Coating Material,7631-86-9 Silica Based PET Film Guangzhou Quanxu Technology Co Ltd , https://www.skyelecteflonheater.com
Minor repair: 3 ~ 6 months
In the repair: 12 to 18 overhaul: 24 to 36 Note: 1.Sz-3 the following pump does not arrange overhaul, overhaul content into the repair.
2. When the unit status monitoring means have been carried out to predict the conditions for maintenance, after the approval of the competent authorities at the higher level, may not be subject to the above restrictions.
2 Maintenance 2.1 Minor repairs 2.1.1 Check, fasten all the connecting bolts.
2.1.2 replace the packing, adjust the mechanical seal.
2.1.3 Check the coupling, replace the elastic rubber ring to correct the coaxiality of the coupling.
2.1.4 Check the bearings, replace the lubricating oil (grease).
2.1.5 clean, check the circulating water system.
2.2 in repair 2.2.1 including minor repair content.
2.2.2 check the rotor sway, check the rotor static balance.
2.2.3 Check or correct the straightness of the shaft.
2.2.4 replace the rolling bearing and lubricating oil.
2.2.5 Maintenance mechanical seal, repair or replacement of dynamic and static seal ring.
2.2.6 Check the adjustment of both ends of the impeller and the front cover, after the benefit of the gap.
2.2.7 calibration instrument.
2.3 overhaul 2.3.1 including the repair content.
2.3.2 disintegration of the various parts of the wear and tear, corrosion, the extent of damage to the ceramic lining, inspection or replacement parts spare parts.
2.3.3 replace the impeller, sleeve, pump cover.
2.3.4 adjust the level of the pump body.
2.3.5 repair motor.
2.3.6 body corrosion. The application of silica in PET (polyethylene terephthalate) film mainly involves the following aspects:
1. Enhanced performance: Silica can be added to PET film as a filler to improve its mechanical strength, thermal stability, optical transparency and other properties. The physical and chemical properties of PET film can be optimized by adjusting the size and dispersion of silica particles.
2. Surface modification: By depositing silica on the surface of PET film, its surface properties, such as hydrophilicity or hydrophobicity, can be changed, which is crucial for certain applications (such as packaging materials, filter membranes, etc.).
3. Antioxidant effect: Silica can be added to PET film as an antioxidant to help reduce the oxidative degradation of the film during use and extend its service life.
4. Light scattering: In some applications that require specific optical effects, silica particles can be used to scatter light to achieve special visual effects or functions.
5. Biocompatibility and antibacterial properties: In the medical and biotechnology fields, the addition of silica with specific functions (such as silica nanoparticles loaded with antibacterial agents) can give PET films biocompatibility and antibacterial properties, which are suitable for the manufacture of medical devices and biodegradable packaging materials.
6. Anti-fog treatment: Silica can be used as an anti-fog agent component for surface treatment of PET films to prevent water vapor from condensing into fog and improve transparency and visibility.
When using silica to enhance the performance of PET films, it should be noted that factors such as the amount of silica added, particle size, and dispersibility will have an important impact on the performance of the final product. Therefore, in practical applications, careful formulation design and process optimization are usually required.
