Steel rail surface modification antirust welding device and rail surface fusing modification method

Abstract

The invention discloses a steel rail surface modification antirust welding device and a rail surface fusing modification method. The welding device comprises a railcar, an electric rust removal machine tool, a cold metal transition welding machine, an electric sharpening machine, a vibratory stress relief device and a power supply system, wherein the cold metal transition welding machine is arranged in the railcar, and a welding gun of the cold metal transition welding machine extends out from the bottom of the railcar; and the welding gun, a rust removal mechanism of the electric rust removal machine tool, a grinding head of the electric sharpening machine and a vibratory mechanism of the vibratory stress relief device are all arranged right above a treated steel rail. The rail surface fusing modification method comprises the following steps of: 1, equipment start; and 2, rail surface fusing modification treatment: rust removal treatment, cold metal transition welding, fusion of a layer of stainless steel antirust belt on the rail surface, antirust belt grinding and antirust belt vibratory stress relief treatment for eliminating residual stress. The design is reasonable, the operation is simple and convenient, the effect is high, the antirust modification effect is good, and the problem of poor railway track circuit shunt caused by oxidative corrosion on the surface of the steel rail can be solved.

Description

technical field [0001] The invention belongs to the technical field of modification treatment of poor track circuit shunting caused by rust on the surface of railway rails, and in particular relates to a rail surface modification anti-rust welding device and a rail surface cladding modification method thereof. Background technique [0002] The easily formed Fe on the rail surface 2 o 3 , FeO, Fe 3 o 4 ·H 2 O and other rust, the above-mentioned rust often increases the residual pressure of the branch of the railway track and affects the safety of railway traffic. In actual use, poor railway track circuit shunting caused by oxidation and corrosion on the surface of rails not only affects driving safety, but also is a weak link in railway signal safety control. It has always been included in the special rectification plan for railway train safety. [0003] In the prior art field, the following three methods are mainly used for derusting the rail surface. The first is to ad...

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Problems solved by technology

In actual use, the first method is limited by the track circuit system, and the adjustment voltage cannot be increased without limit, so it is a technical solution for doing nothing; the second method is due to the traditional CO 2 The heat input of surfacing welding is too high, the thermal stress is too large, the heat is not concentrated, and the short circuit transition process is difficult to control. It not only destrengthens the surface of the rail, makes the surfacing layer and the rail peel off, but also causes deformation of the point rail with low deformation resistance, showing The technical characteristics of treating the symptoms but not the root cause; the third method has practical problems such as the equipment is not suitable for on-site construction of the railway, and the rolling life of the formed aluminum coating is too short.

In summary, there is no equipment and corresponding treatment method that can simply, conveniently and effectively derust the surface of rails

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