METHOD thermite welding of rails INTERMEDIATE casting with metal inserts and welded joints

摘要

1.u0441u0432u0430u0440u043du043eu0435 connection rails made from a melt u0430u043bu044eu043cu043eu0442u0435u0440u043cu0438u0447u0435u0441u043au043eu0439 mixture u043eu0442u043bu0438u0447u0430u044eu0449u0435u0435u0441u00a0, however, that in the upper part of the excavation, the pre prepared, you in the working surface of the head u043fu043eu043bu043du0435u043du043du044bu0435 welded ends outside the rail, is installed u043cu0435u0442u0430u043bu043bu0438u0447u0435u0441u043au0430u00a0 box with a hardness greater than the hardness slightly the surface of the shaft outside the rail.u043eu0431u0440u0430u0437u0443u00a0 with cavity between the insert and the u0440u0435u043bu044cu0441u043eu043c and cavity between u0441u0432u0430u0440u0438u0432u0430u0435u043cu044bu043cu0438 u0442u043eu0440u0446u0430u043cu0438 outside the rail, filled with a solution of metal.;2. u0441u0432u0430u0440u043du043eu0435 connection on 1 u043eu0442u043bu0438u0447u0430u044eu0449u0435u0435u0441u00a0, u043cu0435u0442u0430u043bu043bu0438u0447u0435u0441u043au0430u00a0 box is in the form of a top down the pyramid, with its base body close to the u0440u043eu043cu0431u0443.;3. u0441u0432u0430u0440u043du043eu0435 connection on 1 u043eu0442u043bu0438u0447u0430u044eu0449u0435u0435u0441u00a0, pre prepared pits are staggered form with the ability to install in the upper part of the boca number of inserts.;4. u0441u0432u0430u0440u043du043eu0435 connection on u043fu043f.2 and 3, u043eu0442u043bu0438u0447u0430u044eu0449u0435u0435u0441u00a0, that's all in the dimples and / or at the lateral u0433u0440u0430u043du00a0u0445 metal inserts are scratching.;5.method of welding joints of rails, in which the welded ends of the rails have a foundry shape, then they are heated to form a reactionary t set foundry igel, the mould of the steel metal foundry form is poured into u0441u0432u0430u0440u0438u0432u0430u0435u043cu044bu0439 interface u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 outside the rail, so that the working surface of the head is welded u0440u0446u043eu0432 outside the rail pre u0432u044bu043fu043eu043bu043du00a0u044eu0442 excavationin setting the metal box, and u043eu0431u0440u0430u0437u043eu0432u0430u0432u0448u0438u0435u0441u00a0 with cavity between the insert and the u0440u0435u043bu044cu0441u043eu043c and between u0441u0432u0430u0440u0438u0432u0430u0435u043cu044bu043cu0438 ends outside the rail u0437u0430u043fu043eu043bu043du00a0u044eu0442 u0440u0430u0441u043fu043bu0430u0432u043e m is a metal.;6. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 p.5, donations u0432u044bu043fu043eu043bu043du00a0u044eu0442 electrochemical method.;7. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 clause 5, that's all in the dimples and / or at the lateral u0433u0440u0430u043du00a0u0445 metal insert further u0432u044bu043fu043eu043bu043du00a0u044eu0442 scratching.