SU309961A1 - METHOD OF THERMAL TREATMENT OF DETAILS FROM HIGHLY ALLOYED CEMENTED STEELS - Google Patents
METHOD OF THERMAL TREATMENT OF DETAILS FROM HIGHLY ALLOYED CEMENTED STEELSInfo
- Publication number
- SU309961A1 SU309961A1 SU1393976A SU1393976A SU309961A1 SU 309961 A1 SU309961 A1 SU 309961A1 SU 1393976 A SU1393976 A SU 1393976A SU 1393976 A SU1393976 A SU 1393976A SU 309961 A1 SU309961 A1 SU 309961A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- details
- thermal treatment
- highly alloyed
- steels
- parts
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 5
- 239000010959 steel Substances 0.000 title claims description 5
- 238000007669 thermal treatment Methods 0.000 title 1
- 238000010791 quenching Methods 0.000 claims description 7
- 230000000171 quenching Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000005496 tempering Methods 0.000 claims description 4
- 230000032683 aging Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010606 normalization Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Изобретение относитс к области термической обработки деталей, в частности изготовленных из высоколегированных цементованных сталей.The invention relates to the field of heat treatment of parts, in particular made of high-alloy cemented steels.
Известен способ обработки таких сталей, заключающийс в нормализации, отпуске, закалке в масло и низком отпуске.There is a known method for treating such steels, which consists in normalization, tempering, oil quenching and low tempering.
Недостатком этого способа вл етс длительность цикла термообработки, в результате чего усложн етс создание полной автоматизации процесса термической обработки и наличие операции очистки деталей.The disadvantage of this method is the duration of the heat treatment cycle, as a result of which it becomes difficult to create a complete automation of the heat treatment process and the presence of a part-cleaning operation.
С целью автоматизации процесса закалки за счет сокращени его длительности по предлагаемому способу перед закалкой детали подвергают аустенизации с последующей изотермической выдержкой в процессе охлаждени , которую производ т в жидких средах при температуре 500-600°С.In order to automate the hardening process by shortening its duration by the proposed method, before quenching, parts are subjected to austenization, followed by isothermal aging during the cooling process, which is carried out in liquid media at a temperature of 500-600 ° C.
Така обработка обеспечивает более стабильную и однородную структуру перед закалкой и устран ет операцию очистки деталей.This treatment provides a more stable and uniform structure before quenching and eliminates the cleaning operation of the parts.
Предлагаемый способ осуществл ют следующим образом.The proposed method is carried out as follows.
Детали, например из стали 20Х2Н4А, прошедшие цементацию, нагревают в ванне до 900°С, перенос т в ванну с температурой 500- 600°С дл изотермического распада аустенита,Parts, such as 20X2H4A steel, that have been cemented, are heated in the bath to 900 ° C, transferred to a bath with a temperature of 500-600 ° C for isothermal decomposition of austenite,
нагревают до 800°С и производ т ступенчатуюheated to 800 ° C and produced stepwise
закалку при 200°С с охлаждением в гор чейquenching at 200 ° C with cooling in hot
воде и низкий отпуск при температуре 140°С.water and low tempering at 140 ° C.
В результате применени предварительнойAs a result of the application of preliminary
аустенизации с изотермическим распадом аустенита технологическое врем термической обработки сокращаетс в 2-2,5 раза.austenitization with isothermal decomposition of austenite. The technological time of heat treatment is reduced by 2-2.5 times.
Предмет изобретени Subject invention
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU309961A1 true SU309961A1 (en) |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE8107126L (en) | SET FOR IMPROVED STEEL HEAT TREATMENT USING DIRECT ELECTRIC RESISTANCE HEATING | |
| SU309961A1 (en) | METHOD OF THERMAL TREATMENT OF DETAILS FROM HIGHLY ALLOYED CEMENTED STEELS | |
| US6843867B1 (en) | Method of austempering steel parts | |
| CN105925773A (en) | Heat treatment method for steel | |
| GB1439071A (en) | Thermal treatment of steel | |
| SU316736A1 (en) | METHOD OF THERMOMECHANICAL STEEL TREATMENT | |
| SU307110A1 (en) | METHOD OF THERMOMECHANICAL SURFACE TREATMENT OF STEELS AND ALLOYS | |
| SU436894A1 (en) | The method of chemical-heat treatment of steel | |
| SU252374A1 (en) | METHOD OF INCREASING THE CURTAINITY OF STRUCTURAL STEELS | |
| SU1323582A1 (en) | Method of preliminary heat treatment of forgings made of high-alloy structural martensitic steels | |
| SU235066A1 (en) | STEEL STRENGTH METHOD | |
| SU344004A1 (en) | METHOD OF THERMAL TREATMENT OF STEEL | |
| SU749914A1 (en) | Method of thermal treatment of high-streength corrosion-resistant martensite steels | |
| SU259100A1 (en) | METHOD FOR PROCESSING STEEL PRODUCTS | |
| SU507657A1 (en) | The method of heat treatment of products from non-penetrating steels | |
| SU444819A1 (en) | The method of heat treatment of carbon austenitic steels | |
| SU162863A1 (en) | ||
| Narazaki et al. | Molten sodium quenching of steel parts. | |
| SU331099A1 (en) | STEEL RELEASE METHOD | |
| SU952889A1 (en) | Method for treating products from secondary polyamides | |
| SU346355A1 (en) | METHOD OF STRENGTHENING OF METAL COATINGS | |
| SU1188215A1 (en) | Method of heat treatment of cold-rolled low-carbon steel | |
| SU191607A1 (en) | ||
| SU1087556A1 (en) | Method for heat treating spur gears | |
| SU64355A1 (en) | The method of isothermal hardening of large products from steel or cast iron |