Результаты поиска 1 - 5 из 5
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Исследование термических зон при ремонте коррозионных повреждений наружной поверхности нефтепроводов заваркой
... пропорциональна погонной энергии. The study was carried out to study the temperature gradient distribution in the cross section of the oil pipeline wall section during the repair of corrosion damage to the outer surface of oil pipelines by welding. As a result of the studies it was found that in a certain range of values of linear energy in the heated section of the pipe wall it is possible to obtain a zone of guaranteed strength properties, the metal in which has a margin of temporary ...
Изменен: 27.09.2019Путь: Главная / Статьи
Оптимизация режима предварительного подогрева при восстановлении замковых соединений бурильных труб методом наплавки
... режим предварительного подогрева в индукторе при температуре 250°С и прокалкой флюса при 350°С. The article is devoted to the optimization of technology of drill pipe repair by welding in respect of selection mode preheating. Thepaper analyzes modern sources of information on the selection mode preheating. The microstructural state of the metal body of the castle drill after the restoration was studied;the ways of further improving ...
Изменен: 27.09.2019Путь: Главная / Статьи
Исследование теплового воздействия от сварочной дуги на стенку трубопровода при ремонте дефекта типа «потеря металла»
... возможности повышения давления нефти при ремонте нефтепровода наплавкой порошковыми проволоками. Repair of corrosion damage in the pipeline wall by using manual arc welding is labor-intensive and low-productivity. Replacement of manual arc welding to mechanized flux-cored wires can significantly reduce the time spenton the renovations. However, at the current time the data on evaluation of thermal effects on the ...
Изменен: 27.09.2019Путь: Главная / Статьи
Перспективные технологии восстановления работоспособности трубопроводов
... indicates the occurrence of III stage of the life cycle of pipeline transport, characterized by a sharp decrease in the reliability and the need for urgent repairs. Itrequires the introduction of advanced searching and repair methods, one of which is thewelding defects in the pipe wall cored wires. Materials and methods Welding with flux-cored wire. Results Studies have shown that the use of welding flux cored wire for repair of surface defects in the pipe wall is preferable than manual arc welding ...
Изменен: 27.09.2019Путь: Главная / Статьи
Совершенствование технологии восстановления внутренней поверхности корпуса спайдера СПГ-80 с применением прогрессивных сварочных материалов
... in the oil and gas industry is approaching a critical service life or have already exhausted their standardperiod. In connection this there is a question to enterprises about buying expensive equipment and parts. Materials and methods Electric arc welding with powder wire VELTEK- N300RM. Results The proposed technology by increasing the hardness of the surface build-up can extendthe resources spider body up to 1 year. Сonclusions 1. Automatic welding with the use of welding wire VELTEK-N300RM ...
Изменен: 27.09.2019Путь: Главная / Статьи
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