SU245827A1 - METHOD FOR TREATING WELDED CONNECTIONS OF QUELTING STEELS - Google Patents
METHOD FOR TREATING WELDED CONNECTIONS OF QUELTING STEELSInfo
- Publication number
- SU245827A1 SU245827A1 SU1221974A SU1221974A SU245827A1 SU 245827 A1 SU245827 A1 SU 245827A1 SU 1221974 A SU1221974 A SU 1221974A SU 1221974 A SU1221974 A SU 1221974A SU 245827 A1 SU245827 A1 SU 245827A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- steels
- quelting
- welded connections
- treating welded
- treating
- Prior art date
Links
Landscapes
- Heat Treatment Of Articles (AREA)
Description
Известен способ предупреждени образовани холодных трещин при сварке закаливающихс сталей путем предварительного подогрева околошовной зоны. Однако при этом нельз получать качественное сварное соединение , так как в околошовной зоне углерод находитс в основном в твердом растворе.A known method for preventing the formation of cold cracks during welding of hardening steels by preheating the heat-affected zone. However, it is not possible to obtain a high-quality welded joint, since in the heat-affected zone the carbon is mainly in solid solution.
Предложенный способ отличаетс от известного тем, что участок околошовной зоны остывающего сварного соединени подвергают воздействию ультразвуковых колебаний в интервале температур на 100-150°С выше температуры начала мартенситного превращени и до комнатной температуры.The proposed method differs from the known one in that the portion of the heat-affected weld zone of the cooling weld is exposed to ultrasonic vibrations in the temperature range 100-150 ° C above the temperature of the beginning of the martensitic transformation and to room temperature.
В результате этого распад переохлажденного аустенита начинаетс при более высоких температурах, интепсифицируетс процесс отпуска , что приводит к изменению распределени углерода между твердым раствором иAs a result, the decomposition of supercooled austenite begins at higher temperatures, the tempering process is absorbed, which leads to a change in the distribution of carbon between the solid solution and
карбидной фазой. Увеличение углерода в карбпдах приводит к значительному повышению стойкости закаливающихс сталей против образовани холодных трещин. Предлагаемый способ применим при всех видах сварки и наплавки закаливающихс сталей.carbide phase. The increase in carbon in the carbides leads to a significant increase in the resistance of cold hardening hardening steels. The proposed method is applicable to all types of welding and surfacing of hardening steels.
Предмет изобретени Subject invention
Способ обработки сварного соединени закаливающихс сталей, включающий сварку и последующее охлаждение, отличающийс тем, что, с целью предупреждени образовани холодных трещин, участок околошовпой зоны вThe method of treating a welded joint of hardening steels, including welding and subsequent cooling, characterized in that, in order to prevent the formation of cold cracks, the section of the near-weld zone in
процессе охлаждени подвергают воздействию ультразвуковых колебаний в интервале температур на 100-150°С выше температуры начала мартенситного превращени и до комнатной температуры.The cooling process is exposed to ultrasonic vibrations in the temperature range 100-150 ° C above the temperature of the beginning of the martensitic transformation and to room temperature.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1221974A SU245827A1 (en) | 1968-02-29 | 1968-02-29 | METHOD FOR TREATING WELDED CONNECTIONS OF QUELTING STEELS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1221974A SU245827A1 (en) | 1968-02-29 | 1968-02-29 | METHOD FOR TREATING WELDED CONNECTIONS OF QUELTING STEELS |
Publications (1)
Publication Number | Publication Date |
---|---|
SU245827A1 true SU245827A1 (en) | 1969-06-11 |
Family
ID=40340772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1221974A SU245827A1 (en) | 1968-02-29 | 1968-02-29 | METHOD FOR TREATING WELDED CONNECTIONS OF QUELTING STEELS |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU245827A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2367028A (en) * | 2000-09-22 | 2002-03-27 | Rolls Royce Plc | Gas turbine engine rotor blades |
-
1968
- 1968-02-29 SU SU1221974A patent/SU245827A1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2367028A (en) * | 2000-09-22 | 2002-03-27 | Rolls Royce Plc | Gas turbine engine rotor blades |
US6517319B2 (en) | 2000-09-22 | 2003-02-11 | Rolls-Royce Plc | Gas turbine engine rotor blades |
GB2367028B (en) * | 2000-09-22 | 2004-06-09 | Rolls Royce Plc | Gas turbine engine rotor blades |
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