SU1315487A1 - Method for cyclic heat treatment of medium-carbon and low-alloy steels - Google Patents
Method for cyclic heat treatment of medium-carbon and low-alloy steels Download PDFInfo
- Publication number
- SU1315487A1 SU1315487A1 SU843755525A SU3755525A SU1315487A1 SU 1315487 A1 SU1315487 A1 SU 1315487A1 SU 843755525 A SU843755525 A SU 843755525A SU 3755525 A SU3755525 A SU 3755525A SU 1315487 A1 SU1315487 A1 SU 1315487A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- heat treatment
- carbon
- low
- medium
- alloy steels
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 6
- 239000010959 steel Substances 0.000 title claims abstract description 6
- 239000000956 alloy Substances 0.000 title claims description 3
- 229910045601 alloy Inorganic materials 0.000 title claims description 3
- 229910052799 carbon Inorganic materials 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims 2
- 125000004122 cyclic group Chemical group 0.000 title 1
- 238000001816 cooling Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010791 quenching Methods 0.000 claims abstract 2
- 230000000171 quenching effect Effects 0.000 claims abstract 2
- 238000005382 thermal cycling Methods 0.000 claims abstract 2
- 238000005496 tempering Methods 0.000 claims description 5
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
Изобретение относитс к области термической обработки и может быть использовано при термообработке деталей из уг.черодкстых и низколегированных сталей. Цель изобретени - повышение прочностных характеристик стали (предела прочности и предела текучести) с сохранением высокого уровн относительного сужени . Поставленна цель достигаетс термоцик- лированием относительно точки А|,закалкой с температуры выше Acj и многократным нагревом до температуры высокого отжига с охлаждением в воде . 1 табл. (Л СО СП оо The invention relates to the field of heat treatment and can be used in the heat treatment of parts made of carbon steel and low alloyed steels. The purpose of the invention is to increase the strength characteristics of steel (tensile strength and yield strength) while maintaining a high level of relative constriction. This goal is achieved by thermal cycling relative to point A |, quenching from a temperature above Acj and repeated heating to a high annealing temperature with cooling in water. 1 tab. (L SO SP oo
Description
113113
Изобретение относитс к термической обработке материалов и может быть использовано при термообработке деталей из среднеуглеродиетых и низколегированных сталей.The invention relates to the heat treatment of materials and can be used in the heat treatment of parts from medium carbon and low alloy steels.
Целью изобретени вл етс повышение прочности при сохранении величины относительного сужени .The aim of the invention is to increase the strength while maintaining the value of the relative narrowing.
Пример. Провод т термическую обработку патрубков от бурильных труб 0 127 с толщиной стенки 10 мм из стали 38 ХНМ. Нагревы осуществл ют в электропечи сопротивлени ОКБ 333, нагретой до 1000--1100°С„чтоExample. Conducted heat treatment of pipes from drill pipe 0 127 with a wall thickness of 10 mm from steel 38 HNM. Heating is carried out in an electric furnace of an OKB 333 resistance heated to 1000-1-100 ° C, which
54875487
обеспечивает скорость нагрева 1 - 5 С/с. Охла адение провод т на воздухе , быстрое охлаждение - в воду.Провод т четыре нагрева до 780 с, три охлаждени на воздухе до 610°С-, четвертое охлаждение в воду до 70°С, нагрев до 920 С, охлаждение в воду до 70°С и отпуск при 610°С 40 мин, охлаждение на воздухе - в первом случае. Во втором случае операцию отпуска замен ют трем нагревами до с охлаждени ми в воду.provides a heating rate of 1 - 5 C / s. Cooling is carried out in air, rapid cooling - into water. Four heating to 780 s, three cooling to 610 ° C in air, fourth cooling to 70 ° C in water, heating to 920 ° C, cooling to 70 to water ° С and tempering at 610 ° С 40 min, air cooling - in the first case. In the second case, the tempering operation is replaced by three heats up with cooling to water.
Результаты испытаний механических свойств приведены в таблице.The test results of mechanical properties are given in the table.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843755525A SU1315487A1 (en) | 1984-06-25 | 1984-06-25 | Method for cyclic heat treatment of medium-carbon and low-alloy steels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843755525A SU1315487A1 (en) | 1984-06-25 | 1984-06-25 | Method for cyclic heat treatment of medium-carbon and low-alloy steels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1315487A1 true SU1315487A1 (en) | 1987-06-07 |
Family
ID=21124731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU843755525A SU1315487A1 (en) | 1984-06-25 | 1984-06-25 | Method for cyclic heat treatment of medium-carbon and low-alloy steels |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1315487A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392181A (en) * | 2011-11-11 | 2012-03-28 | 江苏华程工业制管股份有限公司 | Alloy steel, seamless steel pipe and heat treatment technology of shaped steel pipe |
-
1984
- 1984-06-25 SU SU843755525A patent/SU1315487A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Федюкин В,К. Термическа обработка сталей и чугунов. Л., 1977, с.20-26. Авторское свидетельство СССР № 541878, кл. С 21 D 9/22, 1975. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392181A (en) * | 2011-11-11 | 2012-03-28 | 江苏华程工业制管股份有限公司 | Alloy steel, seamless steel pipe and heat treatment technology of shaped steel pipe |
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