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Synthetic crosstie and manufacturing method for the same

A technology for crossties and synthetic resins, which is applied to devices, roads, and rails for coating liquid on the surface, which can solve the problems of increased manufacturing costs of crossties 11, and achieve increased bonding area, good weather resistance, and strong peeling resistance Effect

Active Publication Date: 2013-09-18
SEKISUI CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0022] Therefore, there is a problem that the manufacturing cost of the sleeper 11 increases

Method used

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  • Synthetic crosstie and manufacturing method for the same
  • Synthetic crosstie and manufacturing method for the same
  • Synthetic crosstie and manufacturing method for the same

Examples

Experimental program
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Embodiment Construction

[0051] Second, according to Figure 1 to Figure 6 , the synthetic sleeper and the manufacturing method of the synthetic sleeper in the best mode for carrying out the present invention will be described. In addition, the same code|symbol is used and the same code|symbol is used about the part which is the same as or equivalent to the said previous example.

[0052] Such as figure 1 as well as figure 2 As shown, the synthetic sleeper in Example 1 of this embodiment includes: a synthetic sleeper body 12 formed by a foam base material 13 and a plurality of long glass fibers 1 ... disposed in the foam base material 13, and, Flame retardant layer 22. In addition, the synthetic sleeper in this embodiment also includes an abrasive layer 18 disposed on the surface of the synthetic sleeper body 12 , and the flame retardant layer 22 is disposed on the surface of the abrasive layer 18 .

[0053] Hereinafter, the manufacturing process of the synthetic sleeper in this embodiment is de...

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a synthetic crosstie excellent in a fire-resistant property, and to provide a method of manufacturing the synthetic crosstie.SOLUTION: A release agent 9f attached to the surface of a synthetic crosstie body 12 is ground together with a part of the surface layer 13a of a foaming raw material 13 by using a sand paper 15 of a roughness of #120 or less. Numerous irregularities 18a are formed in accordance with the roughness of the sand paper 15 on a ground layer 18 constituted by the grinding. Further, a urethane resin type coating material 19 prepared by compounding inorganic filler is applied on the surface side of the ground layer 18 from a spray gun 21d and a fire-resistant layer 22 is formed.

Description

technical field [0001] The present invention relates to a synthetic sleeper and a method for manufacturing the synthetic sleeper which are mainly used for iron wheel-supported linear engine traction trains and the like, and in particular have excellent flame retardancy. Background technique [0002] As a method of manufacturing sleepers previously used on railways, it is known that Figure 7 The drawing-out molding machine 10 shown is (for example, refer to Japanese Patent Laid-Open No. 2001-252938, etc.). In the drawing-out molding machine described above, a plurality of long glass fibers 1... are drawn out in a row from the long glass fiber supply part 2 at predetermined intervals, and advance in one direction. [0003] The above-mentioned plurality of long glass fibers 1 ... are inserted between the rubbing plate 4 and the impregnating plate 5 provided in the urethane resin liquid impregnating part 3 while advancing. [0004] Wherein, the above-mentioned rubbing plate 4 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01B3/44B29C44/00B29B11/16B05D5/00
Inventor 石岛勇治中尾喜浩
Owner SEKISUI CHEM CO LTD