METHOD production of seamless hot deformed pipes of large and medium diameter at the pipe-rolling installation with Pilger mills for steam boilers, steam pipelines and sewers applications with high and supercritical steam parameters and the ESR ingot NLZ

摘要

1.method of manufacturing seamless pipes of large and medium diameter at u0433u043eu0440u00a0u0447u0435u0434u0435u0444u043eu0440u043cu0438u0440u043eu0432u0430u043du043du044bu0445 u0442u0440u0443u0431u043eu043fu0440u043eu043au0430u0442u043du044bu0445 plants with u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u044bu043cu0438 states u0434u043bu00a0 steam boiler reservoir, steam lines and plants with high and u0441u0432u0435u0440u0445u043au0440u0438u0442u0438u0447u0435u0441u043au0438u043cu0438 parameters of a pair of bars u044du043bu0435u043au0442u0440u043eu0448u043bu0430u043au043eu0432u043eu0433u043e remelting and continuously - blasting of workpieces.including u0432u044bu043fu043bu0430u0432u043au0443 bars u044du043bu0435u043au0442u0440u043eu0448u043bu0430u043au043eu0432u044bu043c u043fu0435u0440u0435u043fu043bu0430u0432u043eu043c and billet in continuous casting installations have marks, 20, 15u0433u0441, 15u0445u043c, 12u04451u043cu0444, 15u04451u043c1u0444, 12u04452u043cu0444u0441u0440, 10u04459u043cu0444u0431, 12u044511u04322u043cu0444 , 08u044516u043d9u043c2, 12u044518u043d12u0442 and 10u044513u043312u0431u04412u043d2u04342 with subsequent u043eu0431u0442u043eu0447u043au043eu0439 and drilling central u043eu0442u0432u0435u0440u0441u0442u0438u00a0, heating bars and billets to plasticity depending on temperature steel gradesfirmware in the countries with a rolling deformation of the u043fu043eu0441u0430u0434u043eu043c diameter equal to 8 to 16%, u043fu0440u043eu043au0430u0442u043au0443 on u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u044bu0445 countries with u0432u044bu0442u00a0u0436u043au0430u043cu0438, u0437u043du0430u0447u0435u043du0438u00a0 which u0437u0430u0432u0438u0441u00a0u0442 from the diameter and wall thickness, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 orderwhat u044du043bu0435u043au0442u0440u043eu0448u043bu0430u043au043eu0432u043eu0433u043e remelting ingots and continuously cast billets are in countries with u043fu043eu0441u0430u0434u043eu043c falling through a rolling diameter depending on the steel grade and u0441u0443u043cu043cu0430u0440u043d oh u0432u044bu0442u00a0u0436u043au0438 with repartition bar u044du043bu0435u043au0442u0440u043eu0448u043bu0430u043au043eu0432u043eu0433u043e remelting - trumpet or continuously - u043bu0438u0442u0430u00a0 harvesting - pipe.;2. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the u0437u043du0430u0447u0435u043du0438u00a0 values posada diameter bars u044du043bu0435u043au0442u0440u043eu0448u043bu0430u043au043eu0432u043eu0433u043e remelting and continuously - blasting of workpieces with firmware in space " oh u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 of expression products;i u044du0448u043f = ki u044du0448u043f / (i,;the tlc = ki tlc / (i,;where i u044du0448u043f - u0437u043du0430u0447u0435u043du0438u00a0 values posada in diameter with firmware in a "rolling bars u044du0448u043f (i - steel grades%;;the tlc - u0437u043du0430u0447u0435u043du0438u00a0 values posada in diameter with firmware in a "rolling tlc (i - steel grades%;;i = u043fu0440.u043f - the total u0432u044bu0442u00a0u0436u043au0438 in rolling tubes j of size;;ol. - the u0432u044bu0442u00a0u0436u043au0438 with firmware casings under u043fu0440u043eu043au0430u0442u043au0443 pipe j of size;;p is the u0432u044bu0442u00a0u0436u043au0438 in rolling tubes j of size at u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u043eu043c mill;;ki u044du0448u043f rate, taking into account the posada in diameter with firmware casings of the bars u044du0448u043f (i - steel grades%;;tlc - coefficient ki, a value of posada in diameter with firmware casings of tlc (i - steel grades.;3. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 2, so that the rolling of pipes of the bars u044du043bu0435u043au0442u0440u043eu0448u043bu0430u043au043eu0432u043eu0433u043e remelting steel marks 20 and 15 hs the u043au044du0448u043f are equal to 40, pipes made of steel marks 12u04451u043cu0444 and 15u04451u043c1u0444 equal 0,9u043au044du0448u043f, pipes steel brands 15u04455u043c and 12u04452u043cu0444u0441u0440 - 0,8u043au044du0448u043f, pipes steel brands 12u04451u04322u043cu0444 and 08u044516u043d9u043c2 - 0,7u043au044du0448u043f and pipes made of steel 10u044513u043312u0431u04412u043d2u04342 equal 0,6u043au044d stamps u0448u043f.;4. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 2, so that the rolling tubes from continuously - blasting of workpieces are marks 20 and 15 hs the u043au043du043bu0437 are equal to 35, with the rolling of pipes of art ali marks 12u04451u043cu0444 and 15u04451u043c1u0444 - 0,9u043au043du043bu0437, pipes steel brands 15u04455u043c and 12u04452u043cu0444u0441u0440 - 0,85u043au043du043bu0437, pipes steel brands 12u04451u04322u043cu0444 and 08u044516u043d9u043c2 - 0,8u043au043du043bu0437 and pipes made of steel 10u044513u043312u0431u04412u043d2u04342 equal 0,75u043au043du043b stamps 3.