RU2072700C1 - METHOD OF COATING SPRAYING IN THE PIPELINE WELDED CONNECTION ZONE AND DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD OF COATING SPRAYING IN THE PIPELINE WELDED CONNECTION ZONE AND DEVICE FOR ITS IMPLEMENTATION Download PDFInfo
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- RU2072700C1 RU2072700C1 RU94020870/02A RU94020870A RU2072700C1 RU 2072700 C1 RU2072700 C1 RU 2072700C1 RU 94020870/02 A RU94020870/02 A RU 94020870/02A RU 94020870 A RU94020870 A RU 94020870A RU 2072700 C1 RU2072700 C1 RU 2072700C1
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- gas
- spraying
- powder
- zone
- tread
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Abstract
1. Способ напыления покрытия в зоне сварного соединения трубопровода, заключающийся в нанесении защитного слоя в виде протектора на внутренюю поверхность концов трубы в зоне термического воздействия сварки, отличающийся тем, что указанную зону изолируют, затем наносят протектор методом газодинамического напыления порошка металла, при этом размер частиц порошка составляет 1 - 50 мкм, газовому потоку задают сверхзвуковую скорость и формируют сверхзвуковую струю и ультразвуковое поле, обеспечивающие частицам порошка газопорошковой смеси скорость 300 - 1200 м/с и плотность массового расхода частиц 0,05 - 70 г/с•см.2. Способ по п.1, отличающийся тем, что протектор наносят на расстоянии от торца, обусловленном термостойкостью слоя при сварке.3. Устройство для напыления покрытия в зоне сварного соединения трубопровода, содержащее компрессор высокого давления, напылитель, нагреватель, приводы вращения напылителя или трубы, систему подачи и отвода напыляемого материала и газовой среды, отличающееся тем, что указанная система включает в себя дополнительно введенные ресивер и газорегулятор, соединенные последовательно, входом ресивер соединен с выходом компрессора, выход газорегулятора соединен с входом нагревателя и дозатора системы подачи напыляемого материала, выход нагревателя соединен с входом напылителя, который соединен также с выходом дозатора, и введены две заглушки для изоляции торцевого участка внутренней поверхности трубы, между которыми размещены напылитель, дополнительно введенный ультразвуковой излучатель, находящийся в зоне сопла напылителя, и патрубок для отсоса излишков порошка системы отвода на�1. The method of spraying a coating in the zone of the welded joint of the pipeline, which consists in applying a protective layer in the form of a tread on the inner surface of the ends of the pipe in the heat-affected zone of welding, characterized in that the specified zone is isolated, then the tread is applied by gas-dynamic spraying of metal powder, the size particles of powder is 1 - 50 microns, the supersonic speed is set to the gas flow and a supersonic stream and an ultrasonic field are formed, providing the powder particles of the gas-powder mixture scab 300 - 1200 m / s and a density of mass flow rate of the particles of 0.05 - 70 g / s • see 2. The method according to claim 1, characterized in that the tread is applied at a distance from the end due to the heat resistance of the layer during welding. A device for spraying a coating in a welded area of a pipeline, comprising a high-pressure compressor, a sprayer, a heater, rotational drives of a sprayer or pipe, a feed and exhaust system for spraying material and a gas medium, characterized in that said system includes an additionally introduced receiver and gas regulator, connected in series, the input of the receiver is connected to the output of the compressor, the output of the gas regulator is connected to the input of the heater and the dispenser of the feed system of the sprayed material, the heating output The nozzle is connected to the inlet of the atomizer, which is also connected to the outlet of the dispenser, and two plugs are inserted to isolate the end portion of the inner surface of the pipe, between which the atomizer is placed, an additionally introduced ultrasonic emitter located in the zone of the atomizer nozzle, and a nozzle for suction of excess powder from the exhaust system �
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU94020870/02A RU2072700C1 (en) | 1994-06-07 | 1994-06-07 | METHOD OF COATING SPRAYING IN THE PIPELINE WELDED CONNECTION ZONE AND DEVICE FOR ITS IMPLEMENTATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU94020870/02A RU2072700C1 (en) | 1994-06-07 | 1994-06-07 | METHOD OF COATING SPRAYING IN THE PIPELINE WELDED CONNECTION ZONE AND DEVICE FOR ITS IMPLEMENTATION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2072700C1 true RU2072700C1 (en) | 1997-01-27 |
| RU94020870A RU94020870A (en) | 1997-04-10 |
Family
ID=48432126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU94020870/02A RU2072700C1 (en) | 1994-06-07 | 1994-06-07 | METHOD OF COATING SPRAYING IN THE PIPELINE WELDED CONNECTION ZONE AND DEVICE FOR ITS IMPLEMENTATION |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2072700C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10336482B2 (en) * | 2016-10-21 | 2019-07-02 | General Electric Technology Gmbh | System, method and apparatus for preserving and capping tubes |
-
1994
- 1994-06-07 RU RU94020870/02A patent/RU2072700C1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10336482B2 (en) * | 2016-10-21 | 2019-07-02 | General Electric Technology Gmbh | System, method and apparatus for preserving and capping tubes |
Also Published As
| Publication number | Publication date |
|---|---|
| RU94020870A (en) | 1997-04-10 |
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