Rail sleeper and production method thereof

Abstract

The invention provides a rail sleeper and a production method thereof. The production method of the rail sleeper comprises the following steps of S1, silk guiding, specifically, non-alkali glass fibersilk is provided and divided into strands, and each strand of fiber is made into a glass steel fiber bundle; S2, glue dipping, specifically, the glass fiber bundles are fed into a glue dipping tank,and the glass fiber bundles make sufficient contact with a polyurethane mixed solution inside the glue dipping tank and are completely dipped; S3, bar adding, specifically, steel strips are placed inpreset positions of the inner cavity of a mold, and the glass fiber bundles after glue dipping are fed into the inner cavity of the mold; S4, preheating and mold molding, specifically, the mold is heated to a required temperature to make the glass fiber bundles be solidified and molded, and the steel strips are fixed inside a sleeper blank solidified and molded by the glass fiber bundles; S5, cutting and polishing; and S6, glazing. According to the rail sleeper and the production method for the rail sleeper, by means of the manner that the rail sleeper is internally provided with the steel strips, the anti-pressure performance of the rail sleeper is increased, so that the rail sleeper is made to be capable of achieving the anti-bending strength requirements for concrete sleepers, and the actual use requirements for the rail sleeper are sufficiently met.

Description

Technical field [0001] The present invention relates to the technical field of sleepers, in particular to a sleeper with strong compression resistance and high bending strength and a production method thereof. Background technique [0002] Polyurethane foam composite sleeper is a track sleeper made of long glass fiber and polyurethane foam. The composite sleeper overcomes the shortcomings of difficult installation of cement concrete sleeper tubes, irregularities, increased additional power of the track, and higher requirements for the elasticity of the components under the track. It also overcomes the shortcomings of beech sleepers that consume a lot of high-quality wood, are relatively expensive, and are easy to corrode. [0003] However, in the actual use of composite light sleepers, there are still the following problems: 1. Poor compression resistance, and long use time will cause damage to the sleepers. 2. Performances such as bending strength cannot reach the performance in...

AI Technical Summary

Problems solved by technology

Composite sleepers overcome the shortcomings of cement concrete sleeper pipes, etc., which are difficult to install, the unevenness, the additional power of the track increases, and the shortcomings of higher elasticity requirements for the parts under the rail

It also overcomes the shortcomings of beech sleepers that consume a lot of high-quality wood, is relatively expensive, and is easy to corrode.

[0003] However, in the actual use of the composite light sleeper, there are also the following problems: 1. The compressive capacity is poor, and the time of use will cause damage to the sleeper for a long time

2. The flexural strength and other properties cannot meet the performance indicators of concrete sleepers. Except for bridges and turnouts, concrete sleepers cannot be completely replaced in other fields.

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