Views: 9 Author: Site Editor Publish Time: 2019-09-21 Origin: Site
What are the four methods of testing the spiral guard?
1. Whether the spiral protective sleeve is wear-resistant depends on the material rather than the thickness
The polypropylene used in our material has a higher crystallinity than other materials. At 1.9Mpa surface pressure, the (disc friction tester) continuously grinds 1000 km or 415 hours and only wears 0.5 mm. In addition, the "Acrony abrasion test" can be used for testing. The test results, if the quality difference is less than 0.07, it is high quality; on the contrary, if the mass difference is greater than 0.07, the spiral guard is inferior and unqualified.
2. Tensile strength impact strength
High quality qualified spiral guard has good tensile strength and impact strength. The tensile strength at normal temperature is generally 25~30Mpa; the impact strength is generally: notch, 35KJ/M2 at normal temperature, 5KJ/M at -40°C/24h, impact strength (no gap): continuous.
3. UV resistance
The spiral protective sleeve has good UV resistance. The black spiral protective cover is produced with a certain ratio of carbon black to enhance the UV resistance of the spiral guard. This is why black spiral guard have better UV resistance than other color spiral guards.
4. Antistatic properties
The spiral guard is mainly used for construction machinery and injection molding machine equipment such as excavators, loaders, road roller pavers, forklifts, cranes, pumping machinery, and cable protection. When working in a well or dry environment, consider using a spiral guard with strong antistatic properties. In order to enhance the antistatic performance of internal products such as hydraulic pipe fittings, it can provide better safety protection for hydraulic pipes in various harsh environments!
Have you learned the above four ways to identify the spiral protective cover?
