Issue 30/2015 - Microfoam TPE technology for high-speed rail shock absorbing pads is patented

On July 20, the micro-foamed thermoplastic elastomer technology for high-speed rail shock absorbing pad independently developed by Baoruilong Polymer Material (Tianjin) Co.
, Ltd.
obtained the national invention patent, and successfully won the bid for the "Belt and Road" Central Asia, Eurasia and Pan-Asia and other foreign high-speed railway section shock absorbing pad manufacturing project
.

Tested by the national authority, the temperature resistance range of microfoamed thermoplastic elastomer (microfoamed TPE) high-speed rail shock absorbing pad plate is -50 °C ~ 150 °C, in the low temperature cold and high temperature hot environment, to achieve no embrittlement, no deformation, can withstand the impact and extrusion load generated when each wheel of the passing train moves on the shock absorbing pad, reduce and buffer the noise, heat, impact and vibration generated when the train passes the track at high speed, and play
。
This patented product is 4 times the service life of ordinary products, equivalent to the service life of 4 rubber pads, 3 EVA pads or 2 TPU pads, effectively reducing production costs
.

The quality of this product is 10%~40% lighter than that of high-speed rail shock absorbers commonly used at home and abroad; When impacted, the absorbed energy can be increased by 3~5 times, so that the crack tip is passivated, thereby improving the toughness and fatigue life of the material, which can meet the mechanical properties, elasticity, kinetic energy absorption and other requirements
of the high-speed rail shock absorbing pad.

The elastomer and its preparation method break through the four key technologies of elasticity, heat resistance, chemical resistance and aging resistance, and its molding product is a closed-cell microfoam elastomer product with a pore size of 60 microns, with smooth and flat appearance, with the advantages of
independent bubbles, small foaming and no chemical residue.

(Gold)