Вдосконалення методики і розробка програмного забезпечення розрахунку маршрутів виробництва труб безоправочним волочінням з урахуванням точності
Loading...
Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Національна металургійна академія України, Дніпро
Abstract
UKR: Наведено приклади дослідження прогнозування різностінності і визначення товщини стінки заготовки для отримання труби певного розміру, що сприяє підвищенню точності труб з вуглецевих марок сталей при проектуванні маршрутів виробництва. Виконаний кореляційно-регресійний аналіз, визначені фактори, що впливають на зміну різностінності і побудовані регресійні моделі. Результати аналізу доповнили програмне забезпечення визначення розмірів заготовки при проектуванні маршрутів волочіння вуглецевих холоднодеформованих труб безоправочним волочінням.
RUS: Приведены примеры исследования прогнозирования ризностинности и определения толщины стенки заготовки для получения трубы определенного размера, способствует повышению точности труб из углеродистых марок сталей при проектировании маршрутов производства. Выполненный корреляционно-регрессионный анализ, определены факторы, влияющие на изменение ризностинности и построены регрессионные модели. Результаты анализа дополнили программное обеспечение определения размеров заготовки при проектировании маршрутов волочения углеродных холоднодеформированных труб безоправочним волочением.
ENG: For designing routes of sink drawing pipes a certain assortment it is necessary to choose correctly the initial sizes of preparation, to calculate admissible deformations on diameter and a wall. Sink drawing to pipes after short-drawing drawing or rolling on cold rolling mills, ie pipes having a certain difference. When designing routes to drawing it is necessary to predict in advance the size and direction of change wall thickness. The analysis of influence and its character for each parameter on change of wall thickness is carried out. Taking into account the analysis and the nature of the identified dependences, tested the construction of multiple linear and nonlinear regression to determine the wall thickness of the workpiece by gott, Dtgot, 00Dt, 0DD∆, ε. To order to assess the accuracy of the pipes after sink drawing, technological routes of pipes production from carbon steel grades were developed and investigated. According to the developed routes by the production technology, batches of tubes were drawn, samples were taken from each batch and wall thickness measurements were made at equally distant points of pipe cross-section. According to the results of measurements, correlation-regression analysis was performed, factors influencing the variation of difference were determined and regression models were built. With a small diversity of the workpiece (less than 3%) the diversity of the finished pipes increases, with a diversity of the workpiece 3 ... 4% the diversity of the finished pipes changes little and 0δ> 4% the diversity of the finished pipes decreases.The intensity of the correction (k<1) depends on the compression ratio in diameter DD0: the larger the value DD0, the more intense the correction of the difference. That is, to correct the difference (0δ>4%) in the sink drawing, it is necessary to increase the coefficient of extraction. The results of research are introduced into the calculations of routes and technological maps of production in order to predict the diversity of finished pipes during drawing and supplemented the software for determining the size of the workpiece when designing routes for drawing carbon cold-formed pipes by sink drawing.
RUS: Приведены примеры исследования прогнозирования ризностинности и определения толщины стенки заготовки для получения трубы определенного размера, способствует повышению точности труб из углеродистых марок сталей при проектировании маршрутов производства. Выполненный корреляционно-регрессионный анализ, определены факторы, влияющие на изменение ризностинности и построены регрессионные модели. Результаты анализа дополнили программное обеспечение определения размеров заготовки при проектировании маршрутов волочения углеродных холоднодеформированных труб безоправочним волочением.
ENG: For designing routes of sink drawing pipes a certain assortment it is necessary to choose correctly the initial sizes of preparation, to calculate admissible deformations on diameter and a wall. Sink drawing to pipes after short-drawing drawing or rolling on cold rolling mills, ie pipes having a certain difference. When designing routes to drawing it is necessary to predict in advance the size and direction of change wall thickness. The analysis of influence and its character for each parameter on change of wall thickness is carried out. Taking into account the analysis and the nature of the identified dependences, tested the construction of multiple linear and nonlinear regression to determine the wall thickness of the workpiece by gott, Dtgot, 00Dt, 0DD∆, ε. To order to assess the accuracy of the pipes after sink drawing, technological routes of pipes production from carbon steel grades were developed and investigated. According to the developed routes by the production technology, batches of tubes were drawn, samples were taken from each batch and wall thickness measurements were made at equally distant points of pipe cross-section. According to the results of measurements, correlation-regression analysis was performed, factors influencing the variation of difference were determined and regression models were built. With a small diversity of the workpiece (less than 3%) the diversity of the finished pipes increases, with a diversity of the workpiece 3 ... 4% the diversity of the finished pipes changes little and 0δ> 4% the diversity of the finished pipes decreases.The intensity of the correction (k<1) depends on the compression ratio in diameter DD0: the larger the value DD0, the more intense the correction of the difference. That is, to correct the difference (0δ>4%) in the sink drawing, it is necessary to increase the coefficient of extraction. The results of research are introduced into the calculations of routes and technological maps of production in order to predict the diversity of finished pipes during drawing and supplemented the software for determining the size of the workpiece when designing routes for drawing carbon cold-formed pipes by sink drawing.
Description
Ю. Николаєнко: ORCID 0000-0002-1559-9584
Keywords
труба, маршрут волочіння, товщина стінки, кореляційно-регресійний аналіз, точність, різностінність, КСЯСМ, КТТАМП
Citation
Соловйова І. А., Николаєнко Ю. М. Вдосконалення методики і розробка програмного забезпечення розрахунку маршрутів виробництва труб безоправочним волочінням з урахуванням точності. Системні технології. Дніпро, 2021. Т. 3. № 134. С. 99–106. DOI: 10.34185/1562-9945-3-134-2021-11.