RU2015153521A - Method of repair of castings using arc welding - Google Patents

Method of repair of castings using arc welding Download PDF

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Publication number
RU2015153521A
RU2015153521A RU2015153521A RU2015153521A RU2015153521A RU 2015153521 A RU2015153521 A RU 2015153521A RU 2015153521 A RU2015153521 A RU 2015153521A RU 2015153521 A RU2015153521 A RU 2015153521A RU 2015153521 A RU2015153521 A RU 2015153521A
Authority
RU
Russia
Prior art keywords
repaired
defect
rollers
contour
welding
Prior art date
Application number
RU2015153521A
Other languages
Russian (ru)
Other versions
RU2630080C2 (en
Inventor
Павел Александрович Ревель-Муроз
Кирилл Александрович Зинченко
Олег Викторович Колесников
Алексей Александрович Юшин
Николай Георгиевич Гончаров
Игорь Игоревич Михайлов
Original Assignee
Публичное акционерное общество "Транснефть" (ПАО "Транснефть")
Общество с ограниченной ответственностью "Научно-исследовательский институт транспорта нефти и нефтепродуктов Транснефть" (ООО "НИИ Транснефть")
Акционерное общество "Транснефть-Западная Сибирь" (АО "Транснефть-Западная Сибирь")
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Публичное акционерное общество "Транснефть" (ПАО "Транснефть"), Общество с ограниченной ответственностью "Научно-исследовательский институт транспорта нефти и нефтепродуктов Транснефть" (ООО "НИИ Транснефть"), Акционерное общество "Транснефть-Западная Сибирь" (АО "Транснефть-Западная Сибирь") filed Critical Публичное акционерное общество "Транснефть" (ПАО "Транснефть")
Priority to RU2015153521A priority Critical patent/RU2630080C2/en
Publication of RU2015153521A publication Critical patent/RU2015153521A/en
Application granted granted Critical
Publication of RU2630080C2 publication Critical patent/RU2630080C2/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/04—Welding for other purposes than joining, e.g. built-up welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P6/00—Restoring or reconditioning objects
    • B23P6/04—Repairing fractures or cracked metal parts or products, e.g. castings

Landscapes

  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Claims (3)

1. Способ ремонта отливок с применением дуговой сварки, характеризующийся тем, что осуществляют разделку кромок под сварку на ремонтируемом дефекте, удаление дефектного участка отливки, предварительный подогрев по контуру ремонтируемого дефекта на ширину не менее 250 мм в диапазоне температур от 150 до 250°C, наложение окантовочных валиков по контуру ремонтируемого дефекта, наложение промежуточного слоя из двухслойной наплавки толщиной от 3 до 5 мм, механические свойства которой по критериям временного сопротивления разрыву на 20-30% ниже основного металла и относительного удлинения на 20-30% выше основного металла ремонтируемой отливки и наплавленного металла, наложение сварных валиков с перекрытием не более 50% с выдержкой межслойной температуры между накладываемыми сварными валиками в диапазоне температур от 150 до 250°C, наложение облицовочных валиков по контуру ремонтируемого дефекта, формирующих наплавленный пояс общей шириной не более 25 мм, охлаждение сварного соединения.1. A method of repairing castings using arc welding, characterized in that they carry out the cutting of the edges for welding at the repaired defect, remove the defective casting portion, preheat the contour of the repaired defect to a width of at least 250 mm in the temperature range from 150 to 250 ° C, the imposition of edging rollers along the contour of the defect being repaired, the imposition of an intermediate layer of two-layer surfacing with a thickness of 3 to 5 mm, the mechanical properties of which, by the criteria of temporary tensile strength, are 20-30% lower than the base metal and relative elongation 20-30% higher than the base metal of the casting and the weld metal being repaired, application of welded rollers with an overlap of not more than 50% with the interlayer temperature maintained between the applied welded rollers in the temperature range from 150 to 250 ° C, application of facing rollers by the contour of the defect being repaired, forming a deposited belt with a total width of not more than 25 mm, cooling of the welded joint. 2. Способ по п. 1, отличающийся тем, что разделку кромок под сварку производят под углом 25-70°.2. The method according to p. 1, characterized in that the cutting of the edges for welding is performed at an angle of 25-70 °. 3. Способ по п. 1, отличающийся тем, что охлаждение сварного соединения осуществляют со скоростью 25-40°C в час до температуры 15-30°C путем наложения теплоизолирующего пояса.3. The method according to p. 1, characterized in that the cooling of the welded joint is carried out at a speed of 25-40 ° C per hour to a temperature of 15-30 ° C by applying an insulating belt.
RU2015153521A 2015-12-15 2015-12-15 Castings repaire method, using the arc welding RU2630080C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2015153521A RU2630080C2 (en) 2015-12-15 2015-12-15 Castings repaire method, using the arc welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2015153521A RU2630080C2 (en) 2015-12-15 2015-12-15 Castings repaire method, using the arc welding

Publications (2)

Publication Number Publication Date
RU2015153521A true RU2015153521A (en) 2017-06-20
RU2630080C2 RU2630080C2 (en) 2017-09-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2015153521A RU2630080C2 (en) 2015-12-15 2015-12-15 Castings repaire method, using the arc welding

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RU (1) RU2630080C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2693252C1 (en) * 2018-05-28 2019-07-01 Общество с ограниченной ответственностью "ЮниТранс" Repair method of operational damages of railroad head rolling surface

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1701457A1 (en) * 1989-03-01 1991-12-30 Тольяттинский политехнический институт Method of repairing castings of alloys susceptible to cracking
RU2041041C1 (en) * 1992-12-23 1995-08-09 Всероссийский научно-исследовательский институт по строительству трубопроводов Through defect repair method
RU2109611C1 (en) * 1997-08-13 1998-04-27 Шевелкин Валерий Иванович Method of welding of defects in aluminium alloy castings
US6375895B1 (en) * 2000-06-14 2002-04-23 Att Technology, Ltd. Hardfacing alloy, methods, and products
RU2425737C2 (en) * 2009-11-05 2011-08-10 Российская Федерация, от имени которой выступает Министерство промышленности и торговли РФ (МИНПРОМТОРГ РОССИИ) Welding procedure for cold resistant low alloyed steel

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RU2630080C2 (en) 2017-09-05

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