PL409206A1 - Method for producing nanocrystalline structure in the bearing steel - Google Patents
Method for producing nanocrystalline structure in the bearing steelInfo
- Publication number
- PL409206A1 PL409206A1 PL409206A PL40920614A PL409206A1 PL 409206 A1 PL409206 A1 PL 409206A1 PL 409206 A PL409206 A PL 409206A PL 40920614 A PL40920614 A PL 40920614A PL 409206 A1 PL409206 A1 PL 409206A1
- Authority
- PL
- Poland
- Prior art keywords
- weight
- temperature
- bearing steel
- steel
- nanocrystalline structure
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title abstract 5
- 239000010959 steel Substances 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 230000007704 transition Effects 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 229910052748 manganese Inorganic materials 0.000 abstract 1
- 239000011572 manganese Substances 0.000 abstract 1
- 229910000734 martensite Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910052759 nickel Inorganic materials 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/20—Isothermal quenching, e.g. bainitic hardening
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/03—Amorphous or microcrystalline structure
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Sposób wytwarzania struktury nanokrystalicznej w stali łożyskowej, polega na tym, że w pierwszym etapie nagrzewa się element stalowy z handlowej stali łożyskowej o składzie chemicznym: węgiel: 0.93 - 1.10% wagowych, krzem: 0.4 - 0.75% wagowych, mangan: 0.95 - 1.25% wagowych, chrom: 1.30 - 1.65% wagowych, fosfor do 0.027% wagowych, siarka do 0.02% wagowych, nikiel do 0.3% wagowych, miedź do 0.25% wagowych i nieuniknione zanieczyszczenia do temperatury w zakresie 900 - 940°C i wytrzymuje go w tej temperaturze przez czas 10 - 45 minut, a następnie element chłodzi się do temperatury wytrzymania izotermicznego z zakresu 300 - 350°C, czyli powyżej temperatury początku przemiany martenzytycznej, ale poniżej temperatury początku przemiany bainitycznej z szybkością pozwalającą na uniknięcie zajścia przemiany perlitycznej, czyli szybkością większą od szybkości krytycznej uniemożliwiającą zajście przemian dyfuzyjnych, co w przypadku tej stali wynosi od 8 do 12°C/s w zależności od wielkości elementu oraz składu chemicznego, po czym stosuje się wytrzymanie w temperaturze przystanku izotermicznego przez czas 5 - 8 godzin, a następnie chłodzenie do temperatury pokojowej na powietrzu.The method of producing a nanocrystalline structure in bearing steel consists in the first stage of heating a steel element from commercial bearing steel with the chemical composition: carbon: 0.93 - 1.10% by weight, silicon: 0.4 - 0.75% by weight, manganese: 0.95 - 1.25% by weight, chromium: 1.30 - 1.65% by weight, phosphorus up to 0.027% by weight, sulfur up to 0.02% by weight, nickel up to 0.3% by weight, copper up to 0.25% by weight and unavoidable impurities up to a temperature in the range of 900 - 940 ° C and withstands it in this temperature for 10 - 45 minutes, and then the element is cooled to an isothermal holding temperature in the range of 300 - 350 ° C, i.e. above the martensitic transition start temperature, but below the bainitic transition start temperature at a rate that avoids pearlitic transformation, i.e. a higher rate from the critical speed preventing diffusion changes, which in the case of this steel is from 8 to 12 ° C / s depending on the size of the element and the chemical composition, after which it is used to withstand the temperature of the isothermal stop for 5 - 8 hours, followed by cooling to room temperature in air.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL409206A PL228168B1 (en) | 2014-08-18 | 2014-08-18 | Method for producing nanocrystalline structure in the bearing steel |
| PCT/PL2015/000131 WO2016028174A1 (en) | 2014-08-18 | 2015-08-14 | A method of nanocrystalline structure formation in commercial bearing steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL409206A PL228168B1 (en) | 2014-08-18 | 2014-08-18 | Method for producing nanocrystalline structure in the bearing steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL409206A1 true PL409206A1 (en) | 2016-02-29 |
| PL228168B1 PL228168B1 (en) | 2018-02-28 |
Family
ID=55351020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL409206A PL228168B1 (en) | 2014-08-18 | 2014-08-18 | Method for producing nanocrystalline structure in the bearing steel |
Country Status (2)
| Country | Link |
|---|---|
| PL (1) | PL228168B1 (en) |
| WO (1) | WO2016028174A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113337694B (en) * | 2021-06-30 | 2022-01-04 | 临清市同兴轴承锻造有限公司 | Spheroidizing annealing heat treatment method for ultrahigh-carbon bearing steel |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT407057B (en) * | 1996-12-19 | 2000-12-27 | Voest Alpine Schienen Gmbh | PROFILED ROLLING MATERIAL AND METHOD FOR THE PRODUCTION THEREOF |
| SE510344C2 (en) | 1997-08-01 | 1999-05-17 | Ovako Steel Ab | Way for complete bainite hardening of steel |
| GB2352726A (en) | 1999-08-04 | 2001-02-07 | Secr Defence | A steel and a heat treatment for steels |
| KR20110036939A (en) | 2008-07-31 | 2011-04-12 | 더 세크러터리 오브 스테이트 포 디펜스 | Ultra bainite steel and its manufacturing method |
| US20130167983A1 (en) | 2010-09-09 | 2013-07-04 | Tata Steel Uk Limited | Super bainite steel and method for manufacturing it |
| PL219414B1 (en) | 2011-09-26 | 2015-04-30 | Inst Metalurgii Żelaza Im Stanisława Staszica | Method for heat treatment of bainitic-austenitic steel |
| WO2013149657A1 (en) * | 2012-04-04 | 2013-10-10 | Aktiebolaget Skf | Steel alloy |
| CN103540726B (en) * | 2013-09-25 | 2015-08-05 | 西安交通大学 | A kind of Super High Carbon profile shaft holds Heat Treatment Of Steel method |
-
2014
- 2014-08-18 PL PL409206A patent/PL228168B1/en unknown
-
2015
- 2015-08-14 WO PCT/PL2015/000131 patent/WO2016028174A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| PL228168B1 (en) | 2018-02-28 |
| WO2016028174A1 (en) | 2016-02-25 |
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