CN106591697A - Bearing alloy steel and heat treatment method thereof - Google Patents
Bearing alloy steel and heat treatment method thereof Download PDFInfo
- Publication number
- CN106591697A CN106591697A CN201610985453.3A CN201610985453A CN106591697A CN 106591697 A CN106591697 A CN 106591697A CN 201610985453 A CN201610985453 A CN 201610985453A CN 106591697 A CN106591697 A CN 106591697A
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- CN
- China
- Prior art keywords
- steel
- alloy steel
- bearing
- steel alloy
- bearing metal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
-
- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
The invention provides a bearing alloy steel. The bearing alloy steel comprises, by weight, 0.5-0.8% of C, 0.02-0.05% of Si, 0.02-0.1% of Nb, 0.05-0.2% of Mn, 0.01-0.05% of Mo, 0.005% or less of S, 0.001% or less of O, 0.0015% or less of P, 0.15-0.35% of Al, 0.1-1.5% of Cr, 0.002% or less of other impurities which cannot be separated, and the balance of Fe. The bearing alloy steel has the advantages of overcoming of the disadvantages in the prior art, reasonably designed material formula, improved strength, toughness and stability, cost reduction, and prolongation of the service life of bearing parts.
Description
Technical field
Originally it is related to bearing material technical field, and in particular to a kind of bearing metal steel.
Background technology
Bearing is that part that is fixed and reducing load coefficient of friction is played in mechanical transmission course.It may also be said that working as other
When parts produce relative motion each other on axle, for reducing power transmission process in coefficient of friction and holding shaft center
Fixed parts.Bearing is a kind of very important parts in contemporary plant equipment.Its major function is supporting machinery rotation
Swivel, to reduce mechanical load coefficient of friction of the equipment in transmission process.
Therefore need bearing steel that there is preferable hardness, intensity, toughness and stability, but when hardness, strength enhancing
When often lead to bearing fragility raising, cause bearing easily to be damaged, thus existing bearing part material need be improved.
Present invention
(1) technical problem for solving
For the deficiencies in the prior art, this provides a kind of bearing metal steel, overcomes the deficiencies in the prior art, and material is matched somebody with somebody
Side is reasonable in design, the intensity of steel alloy, toughness and stability, reduces cost, improves bearing partss service life.
(2) technical scheme
To realize object above, this is achieved by the following technical programs:
A kind of bearing metal steel, by weight each group is divided into:C 0.5-0.8%, Si 0.02-0.05%, Nb 0.02-
0.1%th, Mn 0.05-0.2%, Mo 0.01-0.05%, S≤0.005%, O≤0.001%, P≤0.0015%, Al 0.15-
0.35%th, Cr 0.1-1.5%, other cannot detached impurity≤0.002%, balance of Fe.
Described C 0.5%, Si 0.02%, Nb 0.02%, Mn 0.05%, Mo 0.01%, S≤0.005%, O≤
0.001%th, P≤0.0015%, Al 0.15%, Cr 0.1%.
Described C 0.8%, Si 0.05%, Nb 0.1%, Mn 0.2%, Mo 0.05%, S≤0.005%, O≤
0.001%th, P≤0.0015%, Al 0.35%, Cr 1.5%.
Described C 0.6%, Si 0.03%, Nb 0.08%, Mn 0.15%, Mo 0.03%, S≤0.005%, O≤
0.001%th, P≤0.0015%, Al 0.2%, Cr 1%.
Bearing metal Heat-Treatment of Steel method, comprises the following steps:(1), steel alloy is warming up to into 850 ± 5 DEG C, is incubated 2-
5h;(2), steel alloy is carried out into water-cooled operation, then heats to 900 ± 5 DEG C, be incubated 1-3h;(3), step (2) is handled well
Steel alloy is cooled to 450 ± 8 DEG C, and cooling extent is 2 DEG C/min, is incubated 1-2h.
(3) beneficial effect
Present embodiments provide a kind of bearing metal steel.Possesses following beneficial effect:Your gold steel alloy of the present invention reduces
The usage amount of category, by using niobium, the use of nickel, makes steel alloy consistent internal structure, improves the intensity of steel alloy and wear-resisting
Performance, the steel alloy processing method that the present invention is provided improves the intensity and anti-wear performance of steel alloy, while reducing steel alloy
Production cost.
Specific embodiment
To make the purpose, technical scheme and advantage of the present embodiment clearer, the technical scheme in the present embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is this part of embodiment, rather than the embodiment of whole.Based on this
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of this protection.
A kind of embodiment 1, bearing metal steel, by weight each group is divided into:C 0.6%, Si 0.03%, Nb 0.08%,
Mn 0.15%, Mo 0.03%, S≤0.005%, O≤0.001%, P≤0.0015%, Al 0.2%, Cr 1%, other nothings
Detached impurity≤0.002% of method, balance of Fe.
A kind of embodiment 2, bearing metal steel, by weight each group is divided into:Described C 0.5%, Si 0.02%, Nb
0.02%th, Mn 0.05%, Mo 0.01%, S≤0.005%, O≤0.001%, P≤0.0015%, Al 0.15%, Cr
0.1%th, other cannot detached impurity≤0.002%, balance of Fe.
A kind of embodiment 3, bearing metal steel, by weight each group is divided into:Described C 0.8%, Si 0.05%, Nb
0.1%th, Mn 0.2%, Mo 0.05%, S≤0.005%, O≤0.001%, P≤0.0015%, Al 0.35%, Cr
1.5%th, other cannot detached impurity≤0.002%, balance of Fe.
Bearing metal Heat-Treatment of Steel method, comprises the following steps:(1), steel alloy is warming up to into 850 ± 5 DEG C, is incubated 2-
5h;(2), steel alloy is carried out into water-cooled operation, then heats to 900 ± 5 DEG C, be incubated 1-3h;(3), step (2) is handled well
Steel alloy is cooled to 450 ± 8 DEG C, and cooling extent is 2 DEG C/min, is incubated 1-2h.
Steel alloy of the present invention reduces the usage amount of noble metal, by using niobium, the use of nickel, makes steel alloy internal structure
Uniformly, the intensity and anti-wear performance of steel alloy are improve, the steel alloy processing method that the present invention is provided improves the strong of steel alloy
Degree and anti-wear performance, while reducing the production cost of steel alloy.
Above example only to illustrate this technical scheme, rather than a limitation;Although with reference to the foregoing embodiments to this
It has been described in detail, it will be understood by those within the art that:It still can be to described in foregoing embodiments
Technical scheme modify, or equivalent is carried out to which part technical characteristic;And these modifications or replacement, not
The essence for making appropriate technical solution departs from the spirit and scope of this each embodiment technical scheme.
Claims (5)
1. a kind of bearing metal steel, it is characterised in that by weight each group is divided into:C 0.5-0.8%, Si 0.02-0.05%,
Nb 0.02-0.1%, Mn 0.05-0.2%, Mo 0.01-0.05%, S≤0.005%, O≤0.001%, P≤0.0015%,
Al 0.15-0.35%, Cr 0.1-1.5%, other cannot detached impurity≤0.002%, balance of Fe.
2. bearing metal steel as claimed in claim 1, it is characterised in that described C 0.5%, Si 0.02%, Nb
0.02%th, Mn 0.05%, Mo 0.01%, S≤0.005%, O≤0.001%, P≤0.0015%, Al 0.15%, Cr
0.1%.
3. bearing metal steel as claimed in claim 1, it is characterised in that described C 0.8%, Si 0.05%, Nb
0.1%th, Mn 0.2%, Mo 0.05%, S≤0.005%, O≤0.001%, P≤0.0015%, Al 0.35%, Cr
1.5%.
4. bearing metal steel as claimed in claim 1, it is characterised in that described C 0.6%, Si 0.03%, Nb
0.08%th, Mn 0.15%, Mo 0.03%, S≤0.005%, O≤0.001%, P≤0.0015%, Al 0.2%, Cr 1%.
5. the bearing metal Heat-Treatment of Steel method according to one of claim 1-3, it is characterised in that including following
Step:(1), steel alloy is warming up to into 850 ± 5 DEG C, is incubated 2-5h;(2), steel alloy is carried out into water-cooled operation, is then heated to
900 ± 5 DEG C, it is incubated 1-3h;(3), the steel alloy that step (2) is handled well being cooled to into 450 ± 8 DEG C, cooling extent is 2 DEG C/
Min, is incubated 1-2h.
Priority Applications (1)
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CN201610985453.3A CN106591697A (en) | 2016-11-09 | 2016-11-09 | Bearing alloy steel and heat treatment method thereof |
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CN201610985453.3A CN106591697A (en) | 2016-11-09 | 2016-11-09 | Bearing alloy steel and heat treatment method thereof |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4642219A (en) * | 1984-03-14 | 1987-02-10 | Aichi Steel Works, Ltd. | Bearing steel and method of manufacturing the same |
CN104152805A (en) * | 2014-07-25 | 2014-11-19 | 安徽霍山科皖特种铸造有限责任公司 | Alloy steel and thermal treatment method thereof |
CN105568158A (en) * | 2014-10-17 | 2016-05-11 | 宝钢特钢有限公司 | Nickel-chromium-free impact-resistant bearing steel and producing method thereof |
CN105671435A (en) * | 2016-01-15 | 2016-06-15 | 东北大学 | Steel for manufacturing bearing, method for carrying out heat treatment on steel and forming piece |
CN105980590A (en) * | 2013-12-02 | 2016-09-28 | 埃赫曼特殊钢公司 | A steel alloy and a component comprising such a steel alloy |
-
2016
- 2016-11-09 CN CN201610985453.3A patent/CN106591697A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4642219A (en) * | 1984-03-14 | 1987-02-10 | Aichi Steel Works, Ltd. | Bearing steel and method of manufacturing the same |
CN105980590A (en) * | 2013-12-02 | 2016-09-28 | 埃赫曼特殊钢公司 | A steel alloy and a component comprising such a steel alloy |
CN104152805A (en) * | 2014-07-25 | 2014-11-19 | 安徽霍山科皖特种铸造有限责任公司 | Alloy steel and thermal treatment method thereof |
CN105568158A (en) * | 2014-10-17 | 2016-05-11 | 宝钢特钢有限公司 | Nickel-chromium-free impact-resistant bearing steel and producing method thereof |
CN105671435A (en) * | 2016-01-15 | 2016-06-15 | 东北大学 | Steel for manufacturing bearing, method for carrying out heat treatment on steel and forming piece |
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Application publication date: 20170426 |