A low-cost artificial sleeper
A low-cost, sleeper technology, applied in the field of railway bedding materials, can solve the problems of high economic and ecological costs, large consumption of wood, and ineffective shock absorption, etc., to achieve enhanced noise reduction and shock resistance, low cost, and light weight Effect
Active Publication Date: 2018-07-24
林州市工务铁路器材制造有限公司
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Wooden sleepers have good elasticity, light weight, simple manufacture, and good insulation performance; but their disadvantages are short service life, large wood consumption, and high economic and ecological costs.
Steel sleepers are noisy and cannot effectively absorb shocks
Method used
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Embodiment Construction
[0022] A low-cost artificial sleeper, which is formed by bonding a density board of 1-4 parts by weight and a polyurethane imitation wood with 6-9 parts by weight, wherein the density board is processed from crop straw; the polyurethane imitation wood contains parts by weight It is a mixture of 9 polyurethane A and polyurethane B, and 1 part by weight fiber. Polyurethane A and polyurethane B are both liquid. The ratio of polyurethane A and polyurethane B is any ratio, and the best ratio is 1:1; fiber length ≤5.0mm.
[0023] The preparation steps of low-cost artificial sleepers are:
[0024] a. Crushed, dried and compressed crop stalks into density board;
[0025] b. Stir and mix a mixture of 9 parts by weight of polyurethane A and polyurethane B and 1 part by weight of fibers evenly;
[0026] c. Put 1-4 parts by weight of the density board into the mold, and then pour 6-9 parts by weight of the polyurethane imitation wood mixture prepared in step b into a compression mold and foam.
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Abstract
The invention discloses a low-cost man-made sleeper. The low-cost man-made sleeper is formed through bonding 1-4 parts by weight of density board with 6-9 parts by weight of polyurethane imitated wood, wherein the density board is prepared from crop straw particles; and the polyurethane imitated wood contains 9 parts by weight of the mixed liquid of polyurethane A and polyurethane B, and 1 part by weight of fibres. The polyurethane A and the polyurethane B are both liquid-state, the proportion of the polyurethane A to the polyurethane B is random, and the optimal proportion is 1: 1; and the lengths of the fibres are not greater than 5.0mm. Compared with the prior art, the low-cost man-made sleeper disclosed by the invention has the following beneficial effects: the overall cost is greatly reduced because of using crop straw; the fibre materials contained in the polyurethane imitated wood keep the original filament shape, a plurality of short fibres are randomly distributed in the polyurethane imitated wood to form a mesh shape, just like steel bars penetrate in cement, thus the hardness of the polyurethane imitated wood is increased, the noise reduction performance and shock resistance of the polyurethane imitated wood are enhanced, and the density of the polyurethane imitated wood is lower than that of a steel sleeper; and therefore, the low-cost man-made sleeper has the advantages of being capable of reducing noise and absorbing shock, light in weight and low in cost.
Description
Technical field [0001] The invention belongs to the technical field of railway bedding materials, and specifically relates to a low-cost artificial sleeper. Background technique [0002] Sleepers are load-bearing objects, materials used for laying railways, special track equipment and paving load-bearing equipment. Wooden sleepers or steel sleepers are mostly used in traditional high-speed railways, bridge tracks, and urban traffic. Wooden sleepers have good elasticity, light weight, simple production, and good insulation performance; but their disadvantages are short service life, large consumption of wood, and high economic and ecological costs. Steel sleepers are noisy and cannot effectively absorb shocks. Summary of the invention [0003] In order to solve the above-mentioned problems, the object of the present invention is to provide an artificial sleeper with shock absorption, noise reduction, light weight and low cost. [0004] The technical content of the present inventio...
Claims
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IPC IPC(8): E01B3/46C08L75/04
CPCC08L75/04C08L2205/025E01B3/46
Inventor 王冠东
Owner 林州市工务铁路器材制造有限公司