TPEE material applied to the spring can make the spring have a long service life
Release time:
2022-04-11 12:01
Source:
high elasticity
The application of TPEE material to the spring can give the spring a long service life, which can help the train start, accelerate, decelerate and stop smoothly. Unlike metal springs, it will not rust, deteriorate under natural conditions, and will not cause elastic cracks and losses. Compared with rubber materials, it has greater reusability and maintains good elasticity.
Processability
TPEE has excellent melt stability and sufficient thermoplasticity, so it has good processability and can be processed by various thermoplastic processing techniques, such as extrusion, injection molding, blow molding, rotational molding and melt casting. At low shear rates, TPEE melt viscosity was insensitive to shear rate, while at high shear rates, melt viscosity decreased with increasing shear rate. Since TPEE melt is very sensitive to temperature, and its melt viscosity changes several times to dozens of times in the range of 10 °C, the temperature should be strictly controlled during molding.
In order to ensure that the water content of the resin is less than 0.1%, blast drying (80-120℃, 6-8h) is required before processing.
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