A.Purpose and performance
Our company has developed more high-end self-lubricating wear-resistant sleeve / shaft sleeve with several patents. It has been put into use for many years, and the stamping speed has been increased by 5.5 times, and the whole stamping production line has been unmanned.
①Abrasion resistance: compared with other engineering plastics, the abrasion index of UHMWPE mortar is only 1 / 5 times of PA66, and 1 / 10 times of hepe and PVC.
②Self lubrication: very low friction coefficient (0.05-0.11)
③Impact resistance: compared with other engineering plastics, impact strength is about 2 times of PC, 5 times of ABS, 10 times of POM and pbtp, 10 times of nylon 66, 20 times of PVC and 4 times of polyethylene. The impact resistance is so high that it is difficult to break it by the usual impact test method. In liquid nitrogen (- 195 ℃), it can also maintain excellent impact strength. It has excellent impact energy absorption, and the impact energy absorption value is the highest among all plastics, so it has good noise damping performance and excellent sound reduction effect.
④ chemical corrosion resistance: Based on its molecular group structure, the chemical stability is very high. In addition to strong oxidizing acid solution, it can withstand various corrosive media (acid, alkali, salt) and organic media (excluding tea solvent) within a certain temperature and concentration range. When 80 kinds of organic solvents at 20 ℃ and 80 ℃ were immersed for 30 days, there was no abnormal phenomenon on the surface and almost no change in other physical properties.
⑤ weather resistance: it can be used safely within - 269 ℃ ~ + 80 ℃, without embrittlement. It is still malleable at liquid helium temperature (- 269 ℃).
⑥ non adhesion: its surface adsorption capacity is very weak, and its anti adhesion capacity is next to PTFE, so the product surface is not easy to adhere to other materials.
B, material UHMWPE
C.Working conditions
Temperature: - 269 ℃ ~ + 80 ℃