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Sub-rail bamboo and wood composite heightening railroad tie plate for concrete sleeper and manufacture method thereof

A bamboo-wood composite and concrete technology, which is applied in the direction of wood layered products, chemical instruments and methods, rails, etc., can solve the problem of low labor efficiency, the inability to adjust the height of the backing plate at the same time, and the amount of glue applied on both sides or dipped Large and other problems, to achieve the effect of reducing the amount of glue applied, saving manual labor time, and low production costs

Active Publication Date: 2010-09-01
哈尔滨新星铁路垫板制造有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the fact that the existing height-adjusting pads cannot meet the requirements of flatness, hardness, compression resistance and wear resistance at the same time, the labor efficiency is low in the production process of the existing height-adjusting pads, double-sided glue coating or dip coating Due to the defect of large amount of glue, a kind of under-rail bamboo-wood composite height-adjusting backing plate for concrete sleeper and its manufacturing method are provided

Method used

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  • Sub-rail bamboo and wood composite heightening railroad tie plate for concrete sleeper and manufacture method thereof
  • Sub-rail bamboo and wood composite heightening railroad tie plate for concrete sleeper and manufacture method thereof
  • Sub-rail bamboo and wood composite heightening railroad tie plate for concrete sleeper and manufacture method thereof

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specific Embodiment approach 1

[0022] Specific implementation mode one: the following combination figure 1 This embodiment will be specifically described. Concrete sleepers use bamboo and wood composite height-adjusting pads under rails, which include a core layer 1, an upper bamboo curtain surface layer 2 and a lower bamboo curtain surface layer 3, and the two sides of the core layer 1 are glued with the upper bamboo curtain surface layer 2 and the lower bamboo curtain surface layer 3 respectively.

[0023] The core layer 1 described in this embodiment is made of veneer material with high density. Fraxinus mandshurica, larch or birch has the characteristics of hard wood, small deformation, small compression ratio, and easy gluing, which can ensure that the technical specifications are consistent with the backing plate. The density requirement is used as the material for producing the core layer 1;

[0024] The upper bamboo curtain surface layer 2 and the lower bamboo curtain surface layer 3 are made of ba...

specific Embodiment approach 2

[0030] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the bamboo curtain surface layer 2 and the lower bamboo curtain surface layer 3 are made of bamboo strips, and the thickness of the bamboo strips is 0.5mm, the allowable tolerance range is ±0.1mm, bamboo strips are used in the horizontal direction, cotton threads are used in the vertical direction, and the interval between two adjacent cotton threads is 100-200mm.

specific Embodiment approach 3

[0031] Specific implementation mode three: the following combination figure 2 This embodiment will be specifically described. The difference between this embodiment and the second embodiment is that: the height-adjusting backing plate is based on the required thickness of the backing plate, and the core layer 1 is assembled from N layers of high-density wooden veneers 1-1. glued together, where N is 1 or 3.

[0032] In this embodiment, when the thickness of the height-adjusting backing plate is 2 to 3 mm, the upper bamboo curtain surface layer 2 and the lower bamboo curtain surface layer 3 are made of bamboo-yellow bamboo strips, and the number of layers of the core layer 1 is Odd-numbered layers, based on the thickness requirements of the heightening backing plate, the number of layers of the core layer 1 is 1 layer or 3 layers.

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Abstract

The invention relates to a sub-rail bamboo and wood composite heightening railroad tie plate for a concrete sleeper and a manufacture method thereof, in particular to a sub-rail heightening railroad tie plate for a concrete sleeper and a manufacture method thereof, which solves the problems that the traditional heightening railroad tie plate can not simultaneously meet the requirements of planeness, rigidity, pressure resistance and wear resistance and the labor efficiency is low and the gluing amount is large in the manufacture process of the heightening railroad tie plate. The sub-rail bamboo and wood composite heightening railroad tie plate for a concrete sleeper comprises a core layer, an upper bamboo curtain surface layer and a lower bamboo curtain surface layer, wherein two sides of the core layer are respectively glued with the upper bamboo curtain surface layer and the lower bamboo curtain surface layer. The manufacture method of the heightening railroad tie plate comprises the following steps of: braiding bamboo woods on a braiding machine to form a bamboo curtain; gluing wooden materials, then assembling the wooden materials with the bamboo curtain, closing and ageing; and then hot forming a composite plate. The invention provides the heightening railroad tie plate with high planeness and rigidity as well as favorable pressure resistance and wear resistance. The adopted manufacture method improves the labor efficiency and saves the cost. The invention is used for regulating the horizontal height of the rail surface of a railroad, thereby ensuring the stable running of a train.

Description

technical field [0001] The invention specifically relates to an under-rail height-adjusting backing plate for a concrete sleeper and a method for manufacturing the height-adjusting backing plate. Background technique [0002] During the maintenance of railway lines, the height-adjusting pad is placed between the bottom of the rail and the rubber pad under the rail to adjust the level of the rail surface. [0003] At present, the material of the under-rail height-adjusting backing plate for railway concrete sleepers is divided into two types: bamboo and wood. The layered blanks are formed by hot pressing; the wooden height-adjusting backing plate is made of wood chips that are rotary-cut or planed from ash, birch or masson pine and other tree species, and are made by gluing. [0004] However, in practice, both the bamboo height-adjusting backing board and the wooden height-adjusting backing board itself have certain defects. After hot-pressing the glue-coated horizontal and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B9/68B32B21/13B27J7/00
Inventor 杨春声
Owner 哈尔滨新星铁路垫板制造有限责任公司
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