Synthetic crosstie and manufacturing method for same
A manufacturing method and technology for sleepers are applied in the field of manufacture of synthetic sleepers and synthetic sleepers, which can solve the problems of increasing the number of laying and construction workers, and achieve the effects of good wear resistance, good workability, and stable size and shape.
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Embodiment 1
[0063] exist figure 1 In the synthetic sleeper described in Example 1 of the illustrated embodiment, the protective layer 13c made of a non-foaming hard resin material is formed on the outermost side of the surface layer 13b.
[0064] The protective layer 13c is provided with the nonwoven fabric 14 and the glass mat 17 used as the reinforcing material described above, and the nonwoven fabric 14 and the glass mat 17 are impregnated with the urethane resin liquid 7a constituting the protective layer 13c.
[0065] Therefore, by laying the protective layer 13c facing the side of the ballast laid on the rail, for example, when the train passes, the ballast rubs against the protective layer 13c, so there is no need to worry about wearing the synthetic sleeper main body.
[0066] Therefore, the composite sleeper 12 can still maintain its required certain strength over a long period of time.
[0067] Furthermore, the protective layer 13c provided with the nonwoven fabric 14 and the ...
Embodiment 2
[0076] image 3 The synthetic sleeper and the manufacturing method of the synthetic sleeper which were described in Example 2 in embodiment of this invention are shown.
[0077] The same or equivalent parts as those of the above-mentioned embodiment and Example 1 are described using the same symbols.
[0078] In the synthetic sleeper 22 of the second embodiment, the surface layer 23b of the synthetic sleeper main body 23 is mainly composed of a protective layer 23c made of a non-foaming hard resin material.
[0079] The protective layer 23c can function as a flame retardant layer by mixing a liquid or powdery non-combustible material or a flame retardant 24 . . . .
[0080] Next, the operation and effect of the synthetic sleeper 22 described in the second embodiment will be described.
[0081] In the synthetic sleeper 22 described in this embodiment 2, in addition to having the effects of the embodiment and embodiment 1, further, the above-mentioned figure 2 The pull-out m...
Embodiment 3
[0086] Figure 4 The synthetic sleeper described in Example 3 in the embodiment of the present invention is shown.
[0087] The same or equivalent parts as those of the above-mentioned embodiment and Examples 1 and 2 are described using the same symbols.
[0088] In the composite sleeper 32 described in the third embodiment, the surface layer 33b of the composite sleeper main body 33 is provided with an anti-vibration layer 33c.
[0089] The shockproof layer 33c is mainly composed of a synthetic rubber material such as silicone rubber or butyl rubber, which is a soft resin material or a viscoelastic shockproof functional resin material.
[0090] Next, the effect of the synthetic sleeper in this Example 3 will be described.
[0091] The synthetic sleeper 32 in this embodiment 3 has the effects of the above-mentioned embodiment and embodiments 1 and 2, and furthermore, on the surface layer 33b of the above-mentioned synthetic sleeper main body 33, an anti-shock layer 33c is pr...
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Abstract
Description
Claims
Application Information
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