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Welding For Rail. Vignole Rail Welding Pandrol offers market-leading solutions for the aluminothermic welding of vignole rail. The rail ends are heated by the current passing between them.
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It is sometimes used for site welding crane rails. Preheating both ends of the track at the same time preheating and interlayer temperature control between 300-350 degrees. In the daily work of railway connection there are four ways of rail welding they are flash butt rail welding gas pressure welding rail thermite rail welding and electric arc welding railroad.
B The rail ends are cleaned with K-oil and wire brush in 150mm length.
An electric welding circuit. The flash butt welding method used in this process ha. When hot enough they are forged together. D The gap between rail ends is kept 25 1mm.
