CN114058965B - High-contact-fatigue-resistance microalloyed steel wheel and production method thereof - Google Patents
High-contact-fatigue-resistance microalloyed steel wheel and production method thereof Download PDFInfo
- Publication number
- CN114058965B CN114058965B CN202111441525.5A CN202111441525A CN114058965B CN 114058965 B CN114058965 B CN 114058965B CN 202111441525 A CN202111441525 A CN 202111441525A CN 114058965 B CN114058965 B CN 114058965B
- Authority
- CN
- China
- Prior art keywords
- wheel
- percent
- equal
- contact fatigue
- fatigue resistance
- Prior art date
- 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.)
- Active
Links
- 229910000742 Microalloyed steel Inorganic materials 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000010791 quenching Methods 0.000 claims abstract description 23
- 230000000171 quenching effect Effects 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 230000006698 induction Effects 0.000 claims abstract description 19
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 6
- 238000005242 forging Methods 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000009749 continuous casting Methods 0.000 claims abstract description 4
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims abstract description 4
- 238000009628 steelmaking Methods 0.000 claims abstract description 4
- 238000009489 vacuum treatment Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 8
- 238000005496 tempering Methods 0.000 claims description 4
- 229910001563 bainite Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 10
- 229910000831 Steel Inorganic materials 0.000 description 35
- 239000010959 steel Substances 0.000 description 35
- 230000000052 comparative effect Effects 0.000 description 21
- 229910001566 austenite Inorganic materials 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000009931 harmful effect Effects 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009661 fatigue test Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000012876 topography Methods 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910001567 cementite Inorganic materials 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000008542 thermal sensitivity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
-
- 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
-
- 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
- C21D1/34—Methods of heating
- C21D1/42—Induction heating
-
- 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
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a high-contact fatigue resistance microalloyed steel wheel and a production method thereof, wherein the wheel comprises the following chemical components in percentage by weight: 0.38 to 0.45 percent of C, 0.15 to 0.25 percent of Ni, 0.50 to 1.2 percent of Mn, 0.80 to 1.20 percent of Cr, 0.15 to 0.40 percent of Si, less than or equal to 0.040 percent of P, less than or equal to 0.040 percent of S, and the balance of Fe and inevitable residual elements, wherein the sum of Mn and Cr is more than or equal to 1.5 percent and less than or equal to 2.0 percent; the wheel produced by the process of electric furnace steel making → LF furnace refining → RH vacuum treatment → round billet continuous casting → ingot cutting rolling → wheel billet forging → heat treatment → wheel processing → tread induction quenching → detection → packaging is excellent in comprehensive mechanical property, good in matching of strong hardness and toughness, and good in wear resistance and contact fatigue resistance.
Description
Technical Field
The invention belongs to the technical field of wheel steel, and particularly relates to a high-contact fatigue resistance microalloyed steel wheel and a production method thereof.
Background
The wheel bears the whole weight of the rolling stock and is one of the key parts of the rolling stock. Heavy loading and light weight are the key development directions of high-speed trains, wheels are used as the single heaviest key moving parts, and the improvement of fatigue performance is the constant theme of wheel technology research and development.
The existing heat treatment technology for the wheel generally comprises heating before quenching, water quenching and tempering, but the conventional heat treatment technology is difficult to improve the strong hardness and the fatigue resistance of the wheel.
Disclosure of Invention
In order to solve the technical problems, the invention provides a high contact fatigue resistance microalloyed steel wheel and a production method thereof.
The technical scheme adopted by the invention is as follows:
a high contact fatigue resistance microalloyed steel wheel comprises the following chemical compositions in percentage by weight: 0.38 to 0.45 percent of C, 0.15 to 0.25 percent of Ni, 0.50 to 1.2 percent of Mn, 0.80 to 1.20 percent of Cr, 0.15 to 0.40 percent of Si, less than or equal to 0.040 percent of P, less than or equal to 0.040 percent of S, and the balance of Fe and inevitable residual elements, wherein the sum of Mn and Cr is more than or equal to 1.5 percent and less than or equal to 2.0 percent.
The metallographic structure of the wheel is carbide-free bainite.
The yield strength of the high-contact fatigue resistance microalloyed steel wheel is 810-860MPa, the tensile strength is 1146-1300MPa, the hardness of 20mm under the tread is 360-400HB, and the fatigue strength exceeds 1100 MPa.
The invention also provides a production method of the high contact fatigue resistance microalloyed steel wheel, which comprises the following steps: electric furnace steel making → LF furnace refining → RH vacuum treatment → round billet continuous casting → ingot cutting and rolling → wheel billet forging → heat treatment → wheel processing → tread induction quenching → detection → packaging.
In the heat treatment step, the heat treatment is carried out in a quenching and tempering mode.
In the heat treatment step, the wheel blank is heated at the temperature of 850 ℃ and 870 ℃ for 2-3h and then is quenched, so that the metal in the wheel rim is cooled to the temperature of 490 ℃ and 510 ℃ at the speed of 1.5-2.5 ℃/s, and then is tempered at the temperature of 470 ℃ and 490 ℃ for 4.0-5.0 h.
Preferably: the wheel blank is heated for 2.5h at 860 ℃, then is quenched, so that the metal in the rim is cooled to 500 ℃ at the speed of 2 ℃/s, and then is tempered for 4.5h at 480 ℃.
In the step of induction hardening of the tread, the wheel is positioned in the middle of the induction heater coil; the heating inductor and the water spraying ring axially move along the wheel at a constant speed, and the quenching speed is 300-400 mm/min; the wheel is driven by the quenching machine tool to rotate at the speed of 60-100 r/min so as to ensure that the wheel is heated and cooled uniformly; quenching and water spraying are carried out from bottom to top, the water pressure is 0.30-0.40 MPa, and the water spraying time is consistent with the heating time; and performing low-temperature tempering at 300-350 ℃ after surface induction quenching.
The water spraying time and the heating time are both 20-30 s.
The induction quenching equipment is high-frequency quenching equipment of Zhengzhou Xinchuan, and the current frequency is 450-2500 Hz. The relationship between the current frequency f of the induction hardening apparatus and the depth d of the hardened layer may be 100000/d2<f<250000/d2Selecting, wherein f and d are respectively Hz and mm; the relationship between the current frequency f and the depth d of the hardening zone is preferably 120000/d2<f<220000/d2The depth of a hardening layer of the wheel treated by the surface induction quenching process is 10-15 mm.
In the high contact fatigue resistance microalloyed steel wheel provided by the invention, the action and control of each chemical element are as follows:
c content: basic elements in the steel have strong interstitial solid solution hardening and precipitation strengthening effects, and the strength of the steel is increased and the toughness is reduced along with the increase of the carbon content; the solubility of carbon in austenite is much higher than that in ferrite, and the carbon is an effective austenite stabilizing element and influences the content of residual austenite and the content of carbon in residual austenite in a final metallographic structure; the volume fraction of carbides in steel is proportional to the carbon content. When the C content is higher than 0.45%, cementite is precipitated to reduce the toughness of the steel, and when the C content is lower than 0.38%, the supersaturation degree of ferrite is reduced, and the strength of the steel is reduced, so that the reasonable range of the C content is 0.38-0.45%.
Ni content: ni can improve the strength and toughness of steel, is an alloy element essential for obtaining high toughness and low-temperature toughness, reduces the transformation temperature of impact toughness, and further improves the safety of wheels for rail transit. The Ni content is lower than 0.15 percent, the effect is not obvious, the Ni content is higher than 0.25 percent, the strength and toughness contribution rate of the steel is greatly reduced, and the production cost is increased, so the Ni content is controlled to be 0.15 to 0.25 percent.
Mn content: the main alloying element in the steel, Mn, has the effects of improving the stability of austenite in the steel, increasing the hardenability of the steel and the like, and obviously improving the hardenability and strength of the wheel steel; mn can improve the diffusion coefficient of phosphorus, promote the segregation of phosphorus to grain boundaries and increase the brittleness and temper brittleness of steel; when the Mn content is less than 0.50%, the hardenability of the steel is poor, and the Mn content is more than 1.2%, the hardenability of the steel is significantly increased, the diffusion tendency of P is also greatly increased, and the toughness of the steel is reduced, so the Mn content should be controlled to 0.50-1.2%.
Cr content: cr is a strong carbide-forming element in steel, and a proper amount of Cr can improve hardenability and strength of steel and can improve corrosion resistance of steel. When the Cr content is less than 0.80%, the effect of the steel cannot be effectively exerted corresponding to low-C steel, the Cr content is more than 1.20%, the hardenability is high, the toughness of the steel is adversely affected, the cost of the steel is greatly increased, and therefore, the Cr content is controlled to be 0.80-1.20%.
Si content: the basic alloy elements in the steel, commonly used deoxidizers, have the atomic radius smaller than that of iron, have strong solid solution strengthening effect on austenite and ferrite, and improve the shear strength of the austenite; but too high Si increases the thermal sensitivity and brittleness of the material. Therefore, the Si content is 0.15-0.40%.
The content of P: in medium-high carbon steel, P is easily segregated at grain boundaries, thereby weakening the grain boundaries and reducing the strength and toughness of the steel. As a harmful element, the lower the P content in the steel is, the better, but the production manufacturing cost is increased. When Mo, W and other grain boundary segregation elements are added into the steel, the grain boundary cohesion is increased, and the harmful effect of P is reduced, so that when P is less than or equal to 0.040%, the performance is not adversely affected.
And (2) S content: s is generally a harmful element in steel and easily forms inclusions with other elements, reducing the strength and toughness of steel. When Mn/S in steel reaches a certain proportion, plastic and spherical MnS inclusions are formed, and the harmful effect of brittle inclusions is reduced. As a harmful element, when S is 0.040% or less, the performance is not adversely affected.
The invention uses Ni and Cr as alloying main elements, stably improves the activity of carbon in ferrite, delays and inhibits carbide precipitation, realizes multi-component composite reinforcement, and is easy to realize a carbide-free bainite tissue structure. Mn element has excellent austenite stabilizing effect, so that the hardenability of the steel is increased, and the strength of the steel is improved. The comprehensive mechanical property of the wheel is improved by a proper forming process, particularly a heat treatment process and a surface induction quenching process, and the matching of high strength and high toughness and high low-temperature toughness of the wheel are realized after the surface induction quenching treatment, so that the aim of improving the service performance of the wheel is fulfilled.
Drawings
FIG. 1 is a surface microstructure of a wheel in example 1;
FIG. 2 is a surface microstructure diagram of the wheel in comparative example 1;
FIG. 3 is a surface topography of a contact fatigue specimen of the wheel in example 1;
fig. 4 is a surface topography of a contact fatigue sample of the wheel in comparative example 1.
Detailed Description
The present invention will be described in detail with reference to examples.
The chemical components in weight percentage of the steel for the wheel made of the microalloyed steel with high contact fatigue resistance in each example and comparative example are shown in Table 1.
The steel for the high contact fatigue resistance microalloyed steel wheel is produced by adopting an electric furnace steel making → LF furnace refining → RH vacuum treatment → round billet continuous casting → ingot cutting rolling → wheel billet forging → heat treatment → wheel processing → tread induction quenching → detection → packaging technology.
The wheel having a diameter of 860mm after forging was obtained, and the heat treatment process of each example and comparative example is shown in Table 2, and the surface induction quenching process of each example and comparative example is shown in Table 3.
The mechanical property test results of the wheels produced in each example and comparative example are shown in table 4.
The surface microstructures of the wheels in example 1 and comparative example are shown in fig. 1 and 2, respectively, and the surface topography of the contact fatigue test specimen is shown in fig. 3 and 4, respectively.
A wear performance and contact fatigue performance comparison test is carried out on an MMS-2A type microcomputer control testing machine by referring to YB/T5345 and 2006 Standard metal material rolling contact fatigue test method, in the test process, a main sample is a wheel sample prepared in each embodiment or comparative example of the invention, matched samples are U71Mn steel rail samples with the same hardness, and the diameters of the main sample and the matched samples are both 60 mm. And (3) wear test: the rotation speed of a main sample is 360rpm, the rotation speed of a matched sample is 400rpm, the corresponding rotation slip rate is 0.75%, the contact stress is 1100MPa, and the cycle frequency is 50 ten thousand times. Contact fatigue test: a set of 6 test samples, rotating at 2000rpm, corresponding to a rotational slip ratio of 0.3 percent and a contact stress of 1100-1500MPa, are lubricated by using No. 20 engine oil under the same test conditions, and the wear performance of the wheels in the examples and the comparative examples is compared with that in Table 5, and the contact fatigue performance is compared with that in Table 6.
TABLE 1 chemical composition of wheels in examples and comparative examples (unit: wt%)
| C | Si | Mn | P | S | Cr | Ni | |
| Example 1 | 0.38 | 0.31 | 1.2 | 0.008 | 0.002 | 0.8 | 0.21 |
| Example 2 | 0.42 | 0.16 | 0.6 | 0.008 | 0.002 | 1.1 | 0.15 |
| Example 3 | 0.38 | 0.38 | 0.9 | 0.008 | 0.002 | 1.0 | 0.25 |
| Comparative example 1 | 0.38 | 0.31 | 1.2 | 0.008 | 0.002 | 0.8 | 0.21 |
| Comparative example 2 | 0.35 | 0.45 | 0.75 | 0.008 | 0.002 | 0.28 | 0.30 |
| Comparative example 3 | 0.38 | 0.31 | 1.2 | 0.008 | 0.002 | 0.8 | 0.21 |
TABLE 2 Heat treatment Process for examples and comparative examples
Table 3 surface induction hardening process of each example and comparative example
TABLE 4 yield strength, surface hardness and Low temperature impact comparison of wheels in examples and comparative examples
| Performance index | Yield strength/MPa | Tensile strength/MPa | 20mm hardness/HB under tread | Rim V notch-20 ℃ impact/J |
| Example 1 | 813 | 1146 | 365 | 45 |
| Example 2 | 857 | 1273 | 391 | 60 |
| Example 3 | 825 | 1178 | 377 | 53 |
| Comparative example 1 | 553 | 941 | 258 | 69 |
| Comparative example 2 | 735 | 1047 | 322 | 41 |
| Comparative example 3 | 883 | 1308 | 402 | 23 |
TABLE 5 comparison of wear Properties of wheels in examples and comparative examples
TABLE 6 comparison of contact fatigue Properties of wheels in examples and comparative examples
As can be seen from the tables, the yield strength of the high contact fatigue resistance microalloyed steel wheel produced by the method is 810-860MPa, the tensile strength is 1146-1300MPa, the hardness under the tread is 20mm, 360-400HB, the high strength and high toughness of the wheel are matched, the comprehensive performance of the wheel in each embodiment is superior to each proportion, and the wheel has good wear resistance and contact fatigue resistance.
The above detailed description of a high contact fatigue resistance microalloyed steel wheel and its method of production with reference to the examples is illustrative and not restrictive, and several examples may be cited within the scope of the invention, thus changes and modifications that do not depart from the general concept of the invention are intended to be within the scope of the invention.
Claims (3)
1. The high contact fatigue resistance microalloyed steel wheel is characterized by comprising the following chemical components in percentage by weight: 0.38 to 0.45 percent of C, 0.15 to 0.25 percent of Ni, 0.50 to 1.2 percent of Mn, 0.80 to 1.20 percent of Cr, 0.15 to 0.40 percent of Si, less than or equal to 0.040 percent of P, less than or equal to 0.040 percent of S, and the balance of Fe and inevitable residual elements, wherein the sum of Mn and Cr is more than or equal to 1.5 percent and less than or equal to 2.0 percent;
the production method of the high contact fatigue resistance microalloyed steel wheel comprises the following steps: electric furnace steel making → LF furnace refining → RH vacuum treatment → round billet continuous casting → ingot cutting and rolling → wheel billet forging → heat treatment → wheel processing → tread induction quenching → detection → packaging;
in the heat treatment step, the wheel blank is heated at the temperature of 850 ℃ and 870 ℃ for 2-3h and then is quenched, so that the metal in the wheel rim is cooled to the temperature of 490 ℃ and 510 ℃ at the speed of 1.5-2.5 ℃/s, and then is tempered at the temperature of 470 ℃ and 490 ℃ for 4.0-5.0 h;
in the step of induction hardening of the tread, the wheel is positioned in the middle of the induction heater coil; the heating inductor and the water spraying ring axially move along the wheel at a constant speed, and the quenching speed is 300-400 mm/min; the wheel is driven by the quenching machine tool to rotate at the speed of 60-100 r/min; quenching and water spraying are carried out from bottom to top, the water pressure is 0.30-0.40 MPa, and the water spraying time is consistent with the heating time; carrying out low-temperature tempering at 300-350 ℃ after surface induction quenching;
in the step of induction quenching of the tread, the water spraying time and the heating time are both 20-30 s;
the current frequency of the induction quenching equipment is 450-2500 Hz;
the metallographic structure of the wheel is carbide-free bainite;
the yield strength of the high-contact fatigue resistance microalloyed steel wheel is 810-860MPa, the tensile strength is 1146-1300MPa, the hardness of 20mm under the tread is 360-400HB, and the fatigue strength exceeds 1100 MPa.
2. The method for producing a high contact fatigue resistance microalloyed steel wheel according to claim 1.
3. The production method according to claim 2, wherein the depth of the hardened layer of the high contact fatigue resistance microalloyed steel wheel is 10-15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441525.5A CN114058965B (en) | 2021-11-30 | 2021-11-30 | High-contact-fatigue-resistance microalloyed steel wheel and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111441525.5A CN114058965B (en) | 2021-11-30 | 2021-11-30 | High-contact-fatigue-resistance microalloyed steel wheel and production method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114058965A CN114058965A (en) | 2022-02-18 |
| CN114058965B true CN114058965B (en) | 2022-05-13 |
Family
ID=80277571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111441525.5A Active CN114058965B (en) | 2021-11-30 | 2021-11-30 | High-contact-fatigue-resistance microalloyed steel wheel and production method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114058965B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990450B (en) * | 2022-06-30 | 2023-08-11 | 马鞍山钢铁股份有限公司 | Wheel rim for high-wear-resistance elastic wheel and heat treatment process thereof |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2912117B2 (en) * | 1993-05-21 | 1999-06-28 | 新日本製鐵株式会社 | Manufacturing method of high strength rail with bainite structure and excellent surface damage resistance |
| AU663023B2 (en) * | 1993-02-26 | 1995-09-21 | Nippon Steel Corporation | Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatigue resistance |
| JP3516189B2 (en) * | 1996-01-23 | 2004-04-05 | 住友金属工業株式会社 | Wheels for railway vehicles excellent in wear resistance and heat crack resistance and method of manufacturing the same |
| JPH108204A (en) * | 1996-06-14 | 1998-01-13 | Sumitomo Metal Ind Ltd | Axle for railroad and its production |
| CN1166804C (en) * | 1998-12-07 | 2004-09-15 | 清华大学 | High-strength and high-toughness weldable air-cooled Hongkang bainite steel specially for railway frog |
| JP4644105B2 (en) * | 2005-11-28 | 2011-03-02 | 新日本製鐵株式会社 | Heat treatment method for bainite steel rail |
| JP5482559B2 (en) * | 2009-08-18 | 2014-05-07 | 新日鐵住金株式会社 | Bainite rail |
| CN102134686B (en) * | 2011-02-25 | 2012-12-05 | 马鞍山钢铁股份有限公司 | Low-alloy wheel steel for railway wagons and wheel preparation method thereof |
| CN102978532B (en) * | 2012-12-04 | 2015-04-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Steel for axle of railway and manufacture method thereof |
| CN106048430B (en) * | 2016-07-06 | 2017-11-03 | 马钢(集团)控股有限公司 | A kind of high tenacity track traffic bainitic steel wheel and its manufacture method |
| CN107586938B (en) * | 2017-09-08 | 2018-10-23 | 马钢(集团)控股有限公司 | A kind of heat treatment method of medium carbon low alloy steel railway wheel |
| WO2019173681A1 (en) * | 2018-03-08 | 2019-09-12 | Northwestern University | Carbide-free bainite and retained austenite steels, producing method and applications of same |
| CN110284069A (en) * | 2019-07-30 | 2019-09-27 | 马鞍山钢铁股份有限公司 | A kind of preparation method of middle carbon wheel steel and its heat treatment method and wheel |
| CN110904311B (en) * | 2019-12-06 | 2021-08-03 | 马鞍山钢铁股份有限公司 | Anti-out-of-roundness wheel steel, wheel and preparation method of wheel |
| CN113403538A (en) * | 2021-06-17 | 2021-09-17 | 宝武集团马钢轨交材料科技有限公司 | High-contact fatigue performance wheel and production method thereof |
-
2021
- 2021-11-30 CN CN202111441525.5A patent/CN114058965B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114058965A (en) | 2022-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3778967B1 (en) | Railway axle | |
| EP3778969B1 (en) | Railway axle | |
| CN112111696A (en) | High-carbon bearing steel with high isotropy and long contact fatigue life and manufacturing method thereof | |
| CN109763061B (en) | Non-quenched and tempered steel and preparation method thereof | |
| CN104032221A (en) | Niobium microalloying high-carbon chromium bearing steel and hot rolling production method thereof | |
| CN113637915B (en) | Nb-Ti-B microalloyed carburized gear steel and preparation method thereof | |
| CN113862576B (en) | Non-quenched and tempered steel, crankshaft and production method thereof | |
| JP2016518521A (en) | Air-hardening bainitic steel with improved material properties | |
| CN104372155B (en) | A kind of Technology for Heating Processing of the axletree of bullet train containing niobium | |
| CN112063823B (en) | Alloy steel high-speed rail axle and production method thereof | |
| CN106521343A (en) | Ultrahigh strength aluminum alloyed superhigh carbon wheel steel and heat treatment method thereof | |
| CN105088081A (en) | Bainite and martensite spring steel for stabilizer bar and manufacturing process for stabilizer bar | |
| CN114058965B (en) | High-contact-fatigue-resistance microalloyed steel wheel and production method thereof | |
| CN104233108A (en) | Heat-treating process of high-speed train axle containing niobium and titanium | |
| CN111321343A (en) | High-strength-toughness and high-wear-resistance steel for forging coupler knuckle and heat treatment method and production method thereof | |
| US9758849B2 (en) | Bearing steel composition | |
| CN111961963A (en) | Medium-carbon niobium-vanadium microalloyed high-speed wheel steel and wheel preparation method | |
| CN112322979B (en) | Steel for subway wheels and wheel production method | |
| CN114107823A (en) | Steel for high-speed wheel, heat treatment method of steel and method for preparing high-speed wheel by using steel | |
| CN113699452A (en) | Steel for tramcar elastic wheel rim and heat treatment method and production method thereof | |
| CN114990450B (en) | Wheel rim for high-wear-resistance elastic wheel and heat treatment process thereof | |
| CN118531320B (en) | Steel for high-fatigue-resistance high-speed wheel, wheel and manufacturing method of wheel | |
| JPH10265891A (en) | Ferrite/pearlite type non-heat treated steel | |
| CN115652185A (en) | Preparation method of high-strength low-alloy wear-resistant cast steel | |
| CN104264065A (en) | Vanadium-containing steel for high-speed train axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 243000, No. 700, Yinhuang East Road, Maanshan economic and Technological Development Zone, Maanshan City, Anhui Province Patentee after: Baowu Group Magang Rail Transit Material Technology Co.,Ltd. Country or region after: China Address before: 243000, No. 700, Yinhuang East Road, Maanshan economic and Technological Development Zone, Maanshan City, Anhui Province Patentee before: Baowu group Magang rail transit Material Technology Co.,Ltd. Country or region before: China |