Novel composite material crosstie and preparation method thereof

Abstract

The invention discloses a novel composite crosstie and a preparation method thereof, and the composite crosstie is formed by processing a composite crosstie with certain elasticity and a composite crosstie with high strength through a high-temperature welding process, and has good high-strength shock absorption performance. All the raw materials are simple in component, the main raw materials arerecycled product, so that resource recycling is facilitated and the raw material cost is low; the proportion difference among the raw materials is small, the proportion is reasonable, uniform mixing in the processing and production process is facilitated, and the material has ideal bending strength and elasticity and is beneficial to large-scale production and application in the rail transit industry.

Description

technical field [0001] The invention relates to a composite material sleeper, in particular to a novel composite material sleeper and a preparation method thereof. Background technique [0002] Sleepers, also known as sleepers, are one of the basic accessories of rail transit lines. They transmit the heavy pressure from the train to the track bed in a balanced and dispersed way. They have the functions of stable support, vibration dilution, and noise absorption. Therefore, it must have certain toughness and elasticity. At present, the main types of sleepers are wooden sleepers and cement sleepers, and the proportion of composite sleepers is relatively small. With the increasing trend of railway speed-up and heavy load, and the increasing awareness of environmental protection, how to develop high-load and vibration-reducing sleepers? Noisy new sleepers are an urgent problem to be solved. [0003] Among the rubber-plastic composite sleepers developed in the prior art, the co...

AI Technical Summary

Problems solved by technology

[0004] Composite sleeper type sleepers have a certain effect of damping vibration and noise, but their strength is often very low, requiring high-strength embedded materials as the main support or just covering the composite sleeper on the outside of the support material as a shock-absorbing carrier. In the technology "CN110593020A A Composite Sleeper Composite Sleeper", the concrete is used as the strength core, and the composite material sleeper is used as the shell to make the sleeper. This patent background technology discloses "When the sleeper shell is damaged, replace the upper shell and the lower shell. Can

"It shows that the materials of the sleeper core and the outer shell of this kind of invention are quite different, and they are more prone to problems such as falling off, poor sealing or damage, which will increase daily maintenance costs and hidden safety hazards.

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