Guide rail of compound type and a method for manufacturing such a rail

Abstract

The invention concerns a guide rail of compound type and a method of manufacturing such a guide rail. The guide rail is made like a railway rail or similar and intended for guiding interaction with a wheel of a unit travelling along the rail, comprising a long outer rail (4) made of sheet metal exhibiting the shape of a longitudinal open channel with defined inside (9) and outside (10), a long base rail (5) exhibiting a foot (1) for mounting the rail to a surface, a web (2) extending from the foot supporting a main part (3), which, in comparison to the web, is thicker and serves as a receptacle (11) for receiving and supporting the outer rail, whereby the outer rail has an outer profile that has been chosen to provide a guiding interaction with the wheel. According to the invention, the inside (9) of the outer rail (4) and the receptacle section (11) exhibit opposing section shapes, that the outer rail (4) has a yield limit exceeding that of the base rail (5) and that both parts are joined together by adhesive binding such as welding or gluing.

Description

technical field [0001] The invention relates to a method for producing a composite guide rail according to the preamble of claim 1 and a guide rail according to the preamble of claim 18 . Background technique [0002] There is an increasing demand for wear resistance and durability of guide rails for guiding devices that can run along them, such as train cars or locomotives, by interacting with wheels or rollers. Among other things, it is thus required that the components of the rail interacting with the wheels can withstand long-term use without so-called surface fatigue and subsequent cracking. Furthermore, it is required that the guide rails should be resistant to deformation, wear and so-called micro-corrosion should not form on the wheel-rail contact surfaces of the rails, since not only damage to the service life of the train but also the comfort of the passengers is reduced. When it comes to the guide rails that form part of railway tracks, these requirements have pr...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the above technique is evident when an outer rail made of a high strength, hardened material or a material with a high tensile yield value and thus high durability is to be applied to the bottom rail, since such materials form Very difficult

Even the envelope attachment obtained in this way between the outer and bottom rails starts off very well, but loosens after a while of use, which often results in rattling and noise from the rails

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