WO2000063449A1 - Method for producing a rolling bearing steel - Google Patents
Method for producing a rolling bearing steel Download PDFInfo
- Publication number
- WO2000063449A1 WO2000063449A1 PCT/NL2000/000116 NL0000116W WO0063449A1 WO 2000063449 A1 WO2000063449 A1 WO 2000063449A1 NL 0000116 W NL0000116 W NL 0000116W WO 0063449 A1 WO0063449 A1 WO 0063449A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel
- rolling bearing
- producing
- rolling
- casting
- Prior art date
Links
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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
-
- 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
- C21D9/36—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for balls; for rollers
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
Definitions
- the present invention relates to a method for producing a steel, comprising the provision of a steel containing : - 0.9 -1.03 wt% C;
- the most generally used rolling bearing steel ASTM A295 52100 comprising approximately 1 wt% C, 0.25 wt% Si, 0.35 wt% Mn and 1.45 wt % Cr can be used for this purpose.
- ASTM A295 52100 comprising approximately 1 wt% C, 0.25 wt% Si, 0.35 wt% Mn and 1.45 wt % Cr can be used for this purpose.
- the segregation and primary carbides result in voids after hot working and other defects in a final roll- ing bearing component.
- GB 2294270A discloses a bearing steal comprising 0.70-.093 wt% C, 0.15-.0.50 wt% Si 0.50-1.10 wt% Mn and 0.30-0.65 wt% Cr. The Cr/C ratio is within the range of .4-.7.
- EP 0825270A1 discloses a bearing metal comprising 0.95-1.10 wt% C, 0.15-0.70 wt% Si, 1.15 wt% max Mn, 0.90-1.60 wt% Cr.
- the invention aims to provide a method for producing a steel wherein such a soaking treatment to remove segregation can be avoided and thereby achieve the full cost saving potential without a major sacrifice in quality.
- said steel comprises nominally 0.96 wt% C; 0.25 wt% Si; 0.85 wt% Mn and 0.8 wt% Cr, and in that either immediately after casting said steel is rolled or is rolled after casting and reheating without a soaking heat treatment, wherein the Cr/C ratio is between 0.7 and 1.20.
- the Cr/C ratio is between .75 and .95.
- the Cr/C ratio is between 0.78 and 0.87.
- the steel described above comprises nominally 0.96 wt% by wt. C, 0.25 wt% Si, 0.85 wt% Mn and 0.80 wt% Cr.
- Such a steel is also known as ASTM A295 5195. Hardening of this steel can either be obtained by through martensitic hardening or surface (induction) hardening. The suitability of the ASTM A295 5195 steel as a substitute for ASTM
- A295 52100 is addressed in figures 1 and 2 which show the martensitic through harde- nability and tempering response.
- bearings which are not subjected to severe loading are particularly suited.
- a particular application area is wherein the service life of the bearing is not determining the service life of the product in which it is mounted i.e. wherein the service live of the bearing is much longer.
- Typical examples are electrical motor rolling bearings.
- the subject invention is not restricted to these application and a person skilled in the art will be able to find further applications being within the range of the appended claims.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000612524A JP2002542394A (en) | 1999-04-15 | 2000-02-24 | Manufacturing method of rolling bearing steel |
AU28327/00A AU2832700A (en) | 1999-04-15 | 2000-02-24 | Method for producing a rolling bearing steel |
EP00906767A EP1173625A1 (en) | 1999-04-15 | 2000-02-24 | Method for producing a rolling bearing steel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1011805 | 1999-04-15 | ||
NL1011805A NL1011805C2 (en) | 1999-04-15 | 1999-04-15 | Method for manufacturing a ball bearing steel. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000063449A1 true WO2000063449A1 (en) | 2000-10-26 |
Family
ID=19769020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL2000/000116 WO2000063449A1 (en) | 1999-04-15 | 2000-02-24 | Method for producing a rolling bearing steel |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1173625A1 (en) |
JP (1) | JP2002542394A (en) |
AU (1) | AU2832700A (en) |
NL (1) | NL1011805C2 (en) |
WO (1) | WO2000063449A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03254340A (en) * | 1990-03-03 | 1991-11-13 | Kawasaki Steel Corp | Manufacture of raw material for bearing having excellent service life to rolling fatigue |
DE19520833A1 (en) * | 1994-06-16 | 1995-12-21 | Mannesmann Ag | Process for the production of a seamless hot-worked pipe |
GB2294270A (en) * | 1994-10-14 | 1996-04-24 | Nsk Ltd | Bearing steel and bearing |
EP0825270A1 (en) * | 1996-02-29 | 1998-02-25 | Kawasaki Steel Corporation | Bearing material |
-
1999
- 1999-04-15 NL NL1011805A patent/NL1011805C2/en not_active IP Right Cessation
-
2000
- 2000-02-24 EP EP00906767A patent/EP1173625A1/en not_active Ceased
- 2000-02-24 AU AU28327/00A patent/AU2832700A/en not_active Abandoned
- 2000-02-24 WO PCT/NL2000/000116 patent/WO2000063449A1/en not_active Application Discontinuation
- 2000-02-24 JP JP2000612524A patent/JP2002542394A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03254340A (en) * | 1990-03-03 | 1991-11-13 | Kawasaki Steel Corp | Manufacture of raw material for bearing having excellent service life to rolling fatigue |
DE19520833A1 (en) * | 1994-06-16 | 1995-12-21 | Mannesmann Ag | Process for the production of a seamless hot-worked pipe |
GB2294270A (en) * | 1994-10-14 | 1996-04-24 | Nsk Ltd | Bearing steel and bearing |
EP0825270A1 (en) * | 1996-02-29 | 1998-02-25 | Kawasaki Steel Corporation | Bearing material |
Non-Patent Citations (2)
Title |
---|
F. HENGERER ET AL: "Evaluation of the Continuous Casting Method for Bearing Steel Production-SKF Experience", 1993, ASTM, PHILADELPHIA US, XP002117837 * |
PATENT ABSTRACTS OF JAPAN vol. 016, no. 057 (M - 1210) 13 February 1992 (1992-02-13) * |
Also Published As
Publication number | Publication date |
---|---|
NL1011805C2 (en) | 2000-10-17 |
AU2832700A (en) | 2000-11-02 |
JP2002542394A (en) | 2002-12-10 |
EP1173625A1 (en) | 2002-01-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109338035B (en) | Steel for wind driven generator gear box bearing and production method thereof | |
JP2760713B2 (en) | Method for producing controlled rolled steel with excellent fire resistance and toughness | |
CN1051338C (en) | Rolls for metal shaping | |
CN106939391A (en) | A kind of Ca microalloyings easy-cutting high strength fractured connecting rod steel and manufacture method | |
CN108929986B (en) | High-strength wear-resistant hot rolled steel plate for automobile braking and production process thereof | |
JPH09176796A (en) | Steel, for production of separable machine parts, and parts produced therefrom | |
JP2661845B2 (en) | Manufacturing method of oxide-containing refractory section steel by controlled rolling | |
CN109518090B (en) | Bainite steel for frog point rail and manufacturing method thereof | |
JPH0219181B2 (en) | ||
Korchynsky et al. | Microalloyed forging steels-A state of the art review | |
JP2905243B2 (en) | Manufacturing method of bearing material with excellent rolling fatigue life | |
CN116497261A (en) | Vulcanizing cold heading steel wire rod and preparation method and application thereof | |
EP1173625A1 (en) | Method for producing a rolling bearing steel | |
GB2222414A (en) | A method of manufacturing steel elements designed to withstand high stress, such as roller bearing elements | |
KR950009168B1 (en) | Making method of non-heat-treatment steel with hot forging | |
JPH07179945A (en) | Caliber roll for rolling | |
JP3004155B2 (en) | Manufacturing method of shaped steel with excellent toughness | |
JP3004154B2 (en) | Manufacturing method of shaped steel with excellent toughness | |
JPH1177118A (en) | Combined sleeve for rolling wide-flange shape steel | |
JP3107695B2 (en) | Method for producing shaped steel having flange with excellent strength, toughness and weldability | |
KR100325713B1 (en) | Method for manufacturing alloy steel wire rod and bar | |
JPH03126838A (en) | Composite roll | |
KR100415653B1 (en) | Method for manufacturing micro-alloyed steel sheet having high strength and high ductility for hot-forging | |
KR100381525B1 (en) | Austenitic stainless steel with excellent rolling properties and manufacturing method | |
JPH0229725B2 (en) | KOJINSEINETSUKANTANZOYOHICHOSHITSUBOKONOSEIZOHOHO |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2000906767 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2000 612524 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09958064 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2000906767 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWR | Wipo information: refused in national office |
Ref document number: 2000906767 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000906767 Country of ref document: EP |