SU427068A1 - METHOD FOR PROCESSING STAINLESS CHROMIUM NICKEL STEEL MOST-WRENCHED CLASS - Google Patents
METHOD FOR PROCESSING STAINLESS CHROMIUM NICKEL STEEL MOST-WRENCHED CLASSInfo
- Publication number
- SU427068A1 SU427068A1 SU1857781A SU1857781A SU427068A1 SU 427068 A1 SU427068 A1 SU 427068A1 SU 1857781 A SU1857781 A SU 1857781A SU 1857781 A SU1857781 A SU 1857781A SU 427068 A1 SU427068 A1 SU 427068A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- class
- wrenched
- nickel steel
- chromium nickel
- processing stainless
- Prior art date
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- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Description
1one
Изобретение относитс к области термической обработки металлоВ и сплавов.The invention relates to the field of heat treatment of metalloB and alloys.
Известен способ термической обработки хромоникелевых нержавеющих сталей аустенитного класса, по которому их после холодной деформации нодвергают за калке с температуры 1050-1150° С. Однако он не устран ет склонность сталей к межкристаллитной коррозии.The known method of heat treatment of chromonic-nickel stainless steels of austenitic class, according to which, after cold deformation, is subjected to tempering from a temperature of 1050-1150 ° C. However, it does not eliminate the tendency of steels to intergranular corrosion.
По предлагаемому способу стали нагревают со скоростью не менее 30 град/сек до температуры первичной рекристаллизации Ч::30°С.According to the proposed method, the steel is heated at a speed of at least 30 deg / s to a temperature of primary recrystallization of H :: 30 ° C.
Пример. Пруток -из стали XlSHlOT после холодной деформации на 66% подвергают нагреву со скоростью 35 и 500 град/сек до температур 680, 720, 760 и 820, 850°С соответCTBefiHo , а затем охлаждают в 10%-ном водном растворе поваренной соли. После испытаний на склонность к межкристаллитнои коррозии по методу AM ГОСТ 6032-58 и нровоцирующим отпуском ври температуре 650°С с выдержкой 1 час и охлаждении на воздухе признаков межкристаллитной коррозии пе обнаруживаетс .Example. After cold deformation, the bar from XlSHLOT steel is subjected to 66% heating at a speed of 35 and 500 degrees / second to temperatures of 680, 720, 760 and 820, 850 ° C, respectively, CTBefiHo, and then cooled in a 10% aqueous solution of sodium chloride. After testing for susceptibility to intergranular corrosion according to the AM Method GOST 6032-58 and with the triggering tempering at a temperature of 650 ° C with an exposure of 1 hour and cooling in air, no signs of intercrystalline corrosion are detected.
Предмет изобретени iSubject of invention i
Способ обработ-ки нержавеющих хромоникелевых сталей аустенитного класса, включающий холодную пластическую деформацию, нагрев и охлаждение, отличающийс тем, что, с целью устранени склонности к межкристаллитной коррозии, их нагревают со скоростью не менее 30 град/сек до температуры первичной рекристаллизации +30° С.The method of processing austenitic grade stainless chromium-nickel steels, including cold plastic deformation, heating and cooling, characterized in that, in order to eliminate the tendency to intergranular corrosion, they are heated at a speed of at least 30 degrees / second to a temperature of primary recrystallization + 30 ° C .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1857781A SU427068A1 (en) | 1972-12-15 | 1972-12-15 | METHOD FOR PROCESSING STAINLESS CHROMIUM NICKEL STEEL MOST-WRENCHED CLASS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1857781A SU427068A1 (en) | 1972-12-15 | 1972-12-15 | METHOD FOR PROCESSING STAINLESS CHROMIUM NICKEL STEEL MOST-WRENCHED CLASS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU427068A1 true SU427068A1 (en) | 1974-05-05 |
Family
ID=20535241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1857781A SU427068A1 (en) | 1972-12-15 | 1972-12-15 | METHOD FOR PROCESSING STAINLESS CHROMIUM NICKEL STEEL MOST-WRENCHED CLASS |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU427068A1 (en) |
-
1972
- 1972-12-15 SU SU1857781A patent/SU427068A1/en active
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