CN115572918A - Method for manufacturing steel for rotating shaft - Google Patents
Method for manufacturing steel for rotating shaft Download PDFInfo
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- CN115572918A CN115572918A CN202211281976.1A CN202211281976A CN115572918A CN 115572918 A CN115572918 A CN 115572918A CN 202211281976 A CN202211281976 A CN 202211281976A CN 115572918 A CN115572918 A CN 115572918A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 104
- 239000010959 steel Substances 0.000 title claims abstract description 104
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 17
- 238000009749 continuous casting Methods 0.000 claims abstract description 47
- 239000002994 raw material Substances 0.000 claims abstract description 36
- 239000000126 substance Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims description 32
- 238000002791 soaking Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000000956 alloy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000009849 vacuum degassing Methods 0.000 claims description 3
- 238000009628 steelmaking Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- 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
- C21D1/26—Methods of annealing
- C21D1/28—Normalising
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- 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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
- C21D8/065—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires of ferrous alloys
-
- 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
-
- 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
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
-
- 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
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- 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
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
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- 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)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Steel (AREA)
- Metal Rolling (AREA)
Abstract
The embodiment of the invention provides a manufacturing method of steel for a rotating shaft, and relates to the technical field of steel making. The manufacturing method of the steel for the rotating shaft comprises the following steps: s1: preparing chemical components of raw materials of the steel, wherein the chemical components of the raw materials of the steel comprise Mo:0.02 to 0.10 percent, cr:0.15 to 0.25%, V: 0.02-0.10%, so that the obtained round steel has better mechanical property; s2: preparing the raw materials into a continuous casting billet, wherein the total reduction is 8mm, so that the internal quality of the continuous casting billet is good, and the components are uniform; s3: the continuous casting billet is made into round steel, and the round steel is subjected to normalizing treatment, so that the stability of the structure and performance of the round steel is improved.
Description
Technical Field
The invention relates to the technical field of steel making, in particular to a manufacturing method of steel for a rotating shaft.
Background
At present, national standard 45 steel is adopted for producing the rotating shaft, the national standard 45 steel is firstly made into hot rolled round steel, then the hot rolled round steel is subjected to quenching and tempering treatment, and then the hot rolled round steel is processed into the rotating shaft and delivered to an end user. However, the quenching and tempering treatment has high cost, is not beneficial to environmental protection and has long production period.
How to design a manufacturing method of the steel for the rotating shaft without adopting thermal refining treatment, which reduces the production cost, shortens the production period and improves the environmental protection property is a technical problem to be solved urgently at present.
Disclosure of Invention
The invention aims to provide a manufacturing method of steel for a rotating shaft, which can reduce production cost, shorten production period and improve environmental protection without quenching and tempering.
Embodiments of the invention may be implemented as follows:
the invention provides a manufacturing method of steel for a rotating shaft, which comprises the following steps:
s1: preparing chemical components of raw materials of the steel, wherein the chemical components of the raw materials of the steel comprise Mo: 0.02-0.10%, cr:0.15 to 0.25%, V:0.02 to 0.10 percent;
s2: preparing the raw materials into a continuous casting billet, wherein the total reduction is 8mm;
s3: and (4) manufacturing the continuous casting billet into round steel, and normalizing the round steel.
In an optional embodiment, in S1, the chemical composition of the raw material of the steel further includes C:0.42 to 0.50%, si:0.17 to 0.37%, mn:0.50 to 0.80 percent of the total weight of the alloy, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.25 percent of Cu, less than or equal to 0.30 percent of Ni and the balance of Fe.
In an optional embodiment, in S1, the chemical composition of the raw material of the steel further includes C:0.45 to 0.50%, si:0.20 to 0.30%, mn:0.70 to 0.80 percent of the total weight of the alloy, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.25 percent of Cu, less than or equal to 0.30 percent of Ni and the balance of Fe.
In an optional embodiment, in S1, the chemical composition of the raw material of the steel material includes C:0.48%, si:0.25%, mn:0.75%, P:0.015%, S:0.005%, cu:0.02%, ni:0.01%, mo:0.03%, cr:0.23%, V:0.05 percent.
In an optional embodiment, in S1, the chemical composition of the raw material of the steel material includes C:0.47%, si:0.25%, mn:0.77%, P:0.018%, S:0.003%, cu:0.03%, ni:0.01%, mo:0.05%, cr:0.21%, V:0.04 percent.
In an alternative embodiment, S2 comprises:
smelting raw materials in a converter, refining outside the converter, RH vacuum degassing and continuous casting to form a continuous casting billet.
In an alternative embodiment, S3 comprises:
s31: heating and rolling the continuous casting billet to form round steel;
s32: and normalizing the round steel.
In an alternative embodiment, S31 comprises:
sequentially carrying out a preheating section, a first heating section, a second heating section and a soaking section on the continuous casting billet, wherein the temperature of the preheating section is less than or equal to 850 ℃, the temperature of the first heating section is 800-1100 ℃, the temperature of the second heating section is 1000-1180 ℃, and the temperature of the soaking section is 1050-1110 ℃;
and adopting a horizontal and vertical alternative rolling process to roll the continuous casting billet to form round steel.
In an optional embodiment, in S31, the temperature of the preheating section is 850 ℃ or less, the temperature of the first heating section is 800 to 1100 ℃, the temperature of the second heating section is 1000 to 1180 ℃, and the temperature of the soaking section is 1080 ℃ or 1090 ℃.
In an alternative embodiment, S32 comprises:
conveying the round steel to a normalizing furnace at a roller speed of 8-10 m/h, wherein the furnace temperatures of 1-13 zones of the normalizing furnace are set to 550 ℃, 610 ℃, 660 ℃, 700 ℃, 740 ℃, 770 ℃, 790 ℃, 815 ℃, 835 ℃, 850 ℃ and 850 ℃ respectively.
The manufacturing method of the steel for the rotating shaft provided by the embodiment of the invention has the following beneficial effects:
1. mo, cr and V are added into chemical components of raw materials of steel, so that the obtained round steel has better mechanical property;
2. carrying out soft reduction on the continuous casting billet, wherein the total reduction is 8mm, so that the internal quality of the continuous casting billet is good, and the components are uniform;
3. the round steel is normalized, so that the stability of the structure and the performance of the round steel is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flowchart of a method for manufacturing a steel for a shaft according to an embodiment of the present invention;
fig. 2 is a specific process for manufacturing the continuous casting billet into round steel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, the present embodiment provides a method for manufacturing steel for a shaft, including the following steps:
s1: preparing chemical components of raw materials of the steel, wherein the chemical components of the raw materials of the steel comprise Mo:0.02 to 0.10 percent, cr:0.15 to 0.25%, V:0.02 to 0.10 percent.
Specifically, by adding Mo, cr and V to the chemical components of the raw materials of the steel material, a steel material having excellent mechanical properties can be obtained.
The chemical composition of the raw materials of the steel also comprises C:0.42 to 0.50%, si:0.17 to 0.37%, mn:0.50 to 0.80 percent of the total weight of the alloy, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.25 percent of Cu, less than or equal to 0.30 percent of Ni and the balance of Fe.
Preferably, the chemical composition of the raw material of the steel further comprises C:0.45 to 0.50%, si:0.20 to 0.30%, mn:0.70 to 0.80 percent of the total weight of the alloy, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.25 percent of Cu, less than or equal to 0.30 percent of Ni and the balance of Fe.
S2: the raw materials are made into continuous casting billets.
Specifically, the specific operation sequence of S2 is: smelting raw materials in a converter, refining outside the converter, RH vacuum degassing and continuous casting to form a continuous casting billet. Wherein, in the process of continuous casting, the continuous casting billet with good internal quality and uniform components is obtained. And (3) carrying out soft reduction on the continuous casting billet, wherein the total reduction is 8mm.
S3: and (4) manufacturing the continuous casting billet into round steel, and normalizing the round steel.
Specifically, referring to fig. 2, S3 specifically includes the following steps:
s31: and heating and rolling the continuous casting billet to form round steel.
Wherein, in order to ensure that the round steel obtains good structure, the preheating section, the first heating section, the second heating section and the soaking section are carried out on the continuous casting billet in sequence, and the heating process of the continuous casting billet is shown in the following table 1.
TABLE 1 continuous casting billet heating process (DEG C)
| Temperature of preheating section | Temperature of a heating section | Temperature of two heating sections | Temperature of soaking zone |
| ≤850 | 800～1100 | 1000～1180 | 1050～1110 |
And adopting a horizontal and vertical alternative rolling process to roll a continuous casting billet to form round steel.
S32: and normalizing the round steel.
In order to ensure the stability of the structure and the performance. And normalizing the round steel. The normalizing process is shown in table 2 below.
TABLE 2 normalizing Process parameters
S33: and finishing, detecting and discharging the round steel.
Example 1
The present embodiment provides a method for manufacturing steel for a shaft, including the steps of:
step 1: preparing chemical components of raw materials of steel, wherein the chemical components of the raw materials of the steel comprise C:0.48%, si:0.25%, mn:0.75%, P:0.015%, S:0.005%, cu:0.02%, ni:0.01%, mo:0.03%, cr:0.23%, V:0.05 percent.
Step 2: the raw materials are made into continuous casting billets.
Wherein, in the continuous casting process, the light reduction is carried out on the continuous casting billet, and the total reduction is 8mm.
And step 3: and (4) manufacturing the continuous casting billet into round steel, and normalizing the round steel.
Specifically, firstly, heating and rolling a continuous casting billet to form round steel; then, normalizing the round steel, and finally finishing, detecting and delivering the round steel.
The heating process of the slab is shown in table 3 below.
TABLE 3 continuous casting billet heating process (DEG C)
| Temperature of preheating section | Temperature of a heating section | Temperature of two heating sections | Temperature of soaking zone |
| 850 | 1000 | 1080 | 1080 |
Example 2
The embodiment provides a manufacturing method of steel for a rotating shaft, which comprises the following steps:
step 1: preparing chemical components of raw materials of the steel, wherein the chemical components of the raw materials of the steel comprise C:0.47%, si:0.25%, mn:0.77%, P:0.018%, S:0.003%, cu:0.03%, ni:0.01%, mo:0.05%, cr:0.21%, V:0.04 percent.
Step 2: the raw materials are made into continuous casting billets.
Wherein, in the continuous casting process, the light reduction is carried out on the continuous casting billet, and the total reduction is 8mm.
And step 3: and (4) manufacturing the continuous casting billet into round steel, and normalizing the round steel.
Specifically, firstly, heating and rolling a continuous casting billet to form round steel; then, normalizing the round steel, and finally finishing, detecting and delivering the round steel.
Wherein, the heating process of the continuous casting slab is shown in the following table 4.
TABLE 4 continuous casting billet heating process (DEG C)
| Temperature of preheating section | Temperature of a heating section | Temperature of two heating sections | Temperature of soaking zone |
| 850 | 1050 | 1100 | 1090 |
The present invention also experimentally found that comparative examples 1 to 6, and the main chemical components of the raw materials of the steels of comparative examples 1 to 6 and examples 1 and 2 are shown in table 5 below.
TABLE 5 major chemical composition of raw materials of steels/%)
| Composition (I) | C | Si | Mn | P | S | Cu | Ni | Mo | Cr | V |
| Example 1 | 0.48 | 0.25 | 0.75 | 0.015 | 0.005 | 0.02 | 0.01 | 0.03 | 0.23 | 0.05 |
| Example 2 | 0.47 | 0.25 | 0.77 | 0.018 | 0.003 | 0.03 | 0.01 | 0.05 | 0.21 | 0.04 |
| Comparative example 1 | 0.45 | 0.25 | 0.65 | 0.015 | 0.005 | 0.02 | 0.01 | 0 | 0.02 | 0 |
| Comparative example 2 | 0.44 | 0.25 | 0.70 | 0.016 | 0.003 | 0.03 | 0.01 | 0 | 0.03 | 0 |
| Comparative example 3 | 0.48 | 0.25 | 0.75 | 0.015 | 0.005 | 0.02 | 0.01 | 0 | 0.23 | 0.05 |
| Comparative example 4 | 0.47 | 0.25 | 0.77 | 0.018 | 0.003 | 0.03 | 0.01 | 0 | 0.21 | 0.04 |
| Comparative example 5 | 0.48 | 0.25 | 0.75 | 0.015 | 0.005 | 0.02 | 0.01 | 0.03 | 0.23 | 0.05 |
| Comparative example 6 | 0.47 | 0.25 | 0.77 | 0.018 | 0.003 | 0.03 | 0.01 | 0.05 | 0.21 | 0.04 |
The production process statistics of comparative examples 1 to 6 and examples 1 and 2 are shown in table 6 below.
TABLE 6 production Process
The statistics of the properties of the round steels obtained in comparative examples 1 to 6 and examples 1 and 2 are shown in table 7 below.
TABLE 7 round steel Performance
Remarking: the performance data listed in Table 7, all obtained from direct sampling on round steel.
As can be seen from table 7, the above properties of the round steels obtained in examples 1 and 2 both satisfied the user requirements, and were substantially all superior to those of comparative examples 1 to 6.
The manufacturing method of the steel for the rotating shaft provided by the embodiment of the invention has the following beneficial effects:
1. mo, cr and V are added into chemical components of raw materials of steel, so that the obtained round steel has better mechanical property;
2. carrying out soft reduction on the continuous casting billet, wherein the total reduction is 8mm, so that the internal quality of the continuous casting billet is good, and the components are uniform;
3. heating the round steel in four sections, and controlling the temperature of the final soaking section to be 1050-1110 ℃ so that the structure of the round steel is good;
4. the round steel is normalized, so that the stability of the structure and the performance of the round steel is improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for manufacturing a steel for a shaft, characterized by comprising:
s1: preparing chemical components of raw materials of steel, wherein the chemical components of the raw materials of the steel comprise Mo: 0.02-0.10%, cr:0.15 to 0.25%, V:0.02 to 0.10 percent;
s2: preparing the raw materials into a continuous casting billet, wherein the total reduction is 8mm;
s3: and manufacturing the continuous casting billet into round steel, and normalizing the round steel.
2. The method for producing steel for a spindle according to claim 1, wherein in S1, the chemical composition of the raw material of the steel material further includes C:0.42 to 0.50%, si:0.17 to 0.37%, mn:0.50 to 0.80 percent of the total weight of the alloy, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.25 percent of Cu, less than or equal to 0.30 percent of Ni and the balance of Fe.
3. The method for producing steel for a spindle according to claim 2, wherein in S1, chemical components of the raw material of the steel material further include C:0.45 to 0.50%, si:0.20 to 0.30%, mn:0.70 to 0.80 percent of the total weight of the alloy, less than or equal to 0.035 percent of P, less than or equal to 0.035 percent of S, less than or equal to 0.25 percent of Cu, less than or equal to 0.30 percent of Ni and the balance of Fe.
4. The method for producing steel for a spindle according to claim 3, wherein in S1, chemical components of the raw material of the steel material include C:0.48%, si:0.25%, mn:0.75%, P:0.015%, S:0.005%, cu:0.02%, ni:0.01%, mo:0.03%, cr:0.23%, V:0.05 percent.
5. The method for producing steel for a spindle according to claim 3, wherein in S1, chemical components of the raw material of the steel material include C:0.47%, si:0.25%, mn:0.77%, P:0.018%, S:0.003%, cu:0.03%, ni:0.01%, mo:0.05%, cr:0.21%, V:0.04 percent.
6. The method for manufacturing a steel for a spindle according to claim 1, wherein S2 includes:
smelting raw materials in a converter, refining outside the converter, RH vacuum degassing and continuous casting to form a continuous casting billet.
7. The method for manufacturing a steel for a spindle according to claim 1, wherein S3 includes:
s31: heating and rolling the continuous casting billet to form the round steel;
s32: and normalizing the round steel.
8. The method for manufacturing a steel for a spindle according to claim 7, wherein S31 includes:
sequentially carrying out a preheating section, a first heating section, a second heating section and a soaking section on the continuous casting billet, wherein the temperature of the preheating section is less than or equal to 850 ℃, the temperature of the first heating section is 800-1100 ℃, the temperature of the second heating section is 1000-1180 ℃, and the temperature of the soaking section is 1050-1110 ℃;
and rolling the continuous casting billet by adopting a horizontal and vertical alternative rolling process to form the round steel.
9. The method for manufacturing steel for a spindle according to claim 8, wherein in S31, the temperature of the preheating zone is 850 ℃ or less, the temperature of the first heating zone is 800 to 1100 ℃, the temperature of the second heating zone is 1000 to 1180 ℃, and the temperature of the soaking zone is 1080 ℃ or 1090 ℃.
10. The method for manufacturing a steel for a spindle according to claim 7, wherein S32 includes:
conveying the round steel to a normalizing furnace at a roller speed of 8-10 m/h, wherein the furnace temperatures of the zones 1-13 of the normalizing furnace are respectively set to be 550 ℃, 610 ℃, 660 ℃, 700 ℃, 740 ℃, 770 ℃, 790 ℃, 815 ℃, 835 ℃, 850 ℃ and 850 ℃.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116536584A (en) * | 2023-05-05 | 2023-08-04 | 本钢板材股份有限公司 | GGP300 hot-rolled round steel for load bearing shaft and preparation method thereof |
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| CN110358966A (en) * | 2019-08-19 | 2019-10-22 | 建龙北满特殊钢有限责任公司 | A kind of railway axle Steel material and its processing method |
| CN112662944A (en) * | 2020-12-03 | 2021-04-16 | 宝钢特钢韶关有限公司 | Bearing steel and preparation method thereof |
| CN112981261A (en) * | 2021-02-09 | 2021-06-18 | 宝武杰富意特殊钢有限公司 | Non-quenched and tempered steel and application, product and manufacturing method thereof |
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| CN112662944A (en) * | 2020-12-03 | 2021-04-16 | 宝钢特钢韶关有限公司 | Bearing steel and preparation method thereof |
| CN112981261A (en) * | 2021-02-09 | 2021-06-18 | 宝武杰富意特殊钢有限公司 | Non-quenched and tempered steel and application, product and manufacturing method thereof |
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| CN116536584A (en) * | 2023-05-05 | 2023-08-04 | 本钢板材股份有限公司 | GGP300 hot-rolled round steel for load bearing shaft and preparation method thereof |
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