Rolling method pig PIPE large and medium-diameter ingots and billets titanium-based alloy on pipe-rolling installation with pilger

摘要

1.method of rolling u043fu0435u0440u0435u0434u0435u043bu044cu043du044bu0445 large and medium diameter pipes from the bars and metal alloys based on titanium in u0442u0440u0443u0431u043eu043fu0440u043eu043au0430u0442u043du044bu0445 plants with u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u044bu043cu0438 mill s, including the casting of ingots in vacuum u0434u0443u0433u043eu0432u044bu0445 furnaces with subsequent hammering them in logging, drilling central u043eu0442u0432u0435u0440u0441u0442u0438u00a0 1005,0 diameter mmheating of ingots and billets in the furnace to the temperature u043cu0443u0444u0435u043bu00a0u0445 in teaching of 1155 - 1180u0441, firmware in the casings in a "rolling and u043fu0440u043eu043au0430u0442u043au0443 u043fu0435u0440u0435u0434u0435u043bu044cu043du044bu0445 u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u044bu0445 pipes ", u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, u043fu0440u043eu043au0430u0442u043au0443 pipes u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u043eu043c mill in u0443u0441u0442u0430u043du043eu0432u0438u0432u0448u0435u043cu0441u00a0 process u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 the casings in a deformation m = 20 - 40 mm and u0432u044bu0442u00a0u0436u043au043eu0439 = 2.5 to 4.0.;2. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that it can u0432u0440u0435u043cu00a0 value of increase from 10 to 20 mm, with u0443u0441u0442u0430u043du043eu0432u0438u0432u0448u0435u043cu0441u00a0 rolling process to gradually increase from 20 to 40 mm, and at a temperature less than 850u0441 casings, pipes, flow smoothly reduced to 25 mm, brand u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u044bu0445 heads u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 with pitch of not more than 20 mm.;3. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the rolling process of the u043fu0438u043bu0438u0433u0438u043cu043eu0432u043eu043c u0443u0441u0442u0430u043du043eu0432u0438u0432u0448u0435u043cu0441u00a0) increase the amount of u0432u044bu0440u0430u0436u0435u043du0438 which u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442;m = mu0443u0441u0442 + (tu043du0430u0447 - tu043au0440u0435u0442),;and at the temperature of pipes and casings, 850u0441 file which reduce the amount of u0432u044bu0440u0430u0436u0435u043du0438 u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442;m1 = m - (tu043au0440u0435u0442 - tu043au043eu043d) k1;where mu0443u0441u0442 = 20 - the value of the u0443u0441u0442u0430u043du043eu0432u0438u0432u0448u0435u043cu0441u00a0 rolling process, after the free and full path roll an apparatus, mm;;tu043du0430u0447 = 1155 - 1180 - temperature casings at the start of rolling.;tu043au0440u0435u0442 = 850 - u043au0440u0438u0442u0438u0447u0435u0441u043au0430u00a0 temperature shell - tube, in which the smooth, reduce the value of casings - pipe in hearth deformation.;tu043au043eu043d - temperature end mill casing - pipe.;to = 0.06 - coefficient, taking into account the increase in the beginning of u0443u0441u0442u0430u043du043eu0432u0438u0432u0448u0435u0433u043eu0441u00a0 rolling process, while reducing the temperature in the shell - tube 1c, mm / s;;k1 = 0.09 - rate, a decrease of in the process of rolling, in reducing the temperature of the tubes at 1c below critical mm / s.;4. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that after the free casings in u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u043eu0433u043e rolls mill and before the end of the rolling mill, reduce the water supply to the rolls u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u043eu0433u043e in 2 - 3 times.;5. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the u043fu0440u043eu043au0430u0442u043au0443 pipes u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 two dornach u0440u0430u0437u043eu0433u0440u0435u0442u044bu0445 600 - 650u0441 by rolling 2 - 3 u043du0430u0441u0442u0440u043eu0435u0447u043du044bu0445 carbonaceous shells.;6. method for p.5, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, after rolling of tubes made of alloy based on titanium and cooled in air to remove the dorn u043fu0435u0440u0435u043au0430u0442u044bu0432u0430u043du0438u0438 sloping grille during 30 - 45 with the tub with grease, u0434u043eu0440u043du043eu043fu043eu0434u044au0435u043cu043du044bu043c mechanism dorn with bath with lubricant and in 5 - 10 years, turning in u0434u043eu0440u043du043eu043fu043eu0434u044cu0435u043cu043du043eu043c mechanism at 18020 and re immersed in a bath with the lubricant 5 - 10, cooled in the air.and then pass to the castle of bowling apparatus and u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 u043fu0440u043eu043au0430u0442u043au0443 next pipes.;7. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that after the rolling of the saw cut u043fu0438u043bu0438u0433u0440u0438u043cu043eu0432u0443u044e u0433u043eu0440u00a0u0447u0435u0439 cutting head, a tube pass, u0438u0441u043fu043eu043bu044cu0437u0443u00a0 rolling heating temperature. the car went u0434u043bu00a0 curvature.;8. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 1, so that the pipe is u043au0440u0430u0442u044b after the car with the camber over 4.0 mm in length 3600 to 4000 mm, u043du0430u0433u0440u0435u0432u0430u044eu0442u0441u00a0 in chamber furnace to the temperature of 750 to 800u0441 and in u043du0430u0433u0440u0435u0442u043eu043c u0441u043eu0441u0442u043eu00a0u043du0438u0438 u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 tweaking it to u0448u0442u0435u043cu043fu0435u043bu044cu043du043eu043c press.;9. method for u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0 point 9, so that the editing of pipes u043au0440u0430u0442u043eu0432 u043fu0440u043eu0438u0437u0432u043eu0434u00a0u0442 by bending the pipes in the opposite direction to the arrow deformation exceeding 1.5 - 2.0 times where big u0437u043du0430u0447u0435u043du0438u00a0 u043eu0442u043du043eu0441u00a0u0442u0441u00a0 tubes - u043au0440u0430u0442u0430u043c more camber.