CN113061798A - Smelting process of alloyed high manganese steel - Google Patents
Smelting process of alloyed high manganese steel Download PDFInfo
- Publication number
- CN113061798A CN113061798A CN202110300234.8A CN202110300234A CN113061798A CN 113061798 A CN113061798 A CN 113061798A CN 202110300234 A CN202110300234 A CN 202110300234A CN 113061798 A CN113061798 A CN 113061798A
- Authority
- CN
- China
- Prior art keywords
- furnace
- alloy
- high manganese
- manganese steel
- steel
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0006—Adding metallic additives
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0025—Adding carbon material
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/24—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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a smelting process of alloyed high manganese steel, which comprises the following steps: charging the ferro-molybdenum alloy into a furnace along with steel materials; melting furnace burden, carrying out dephosphorization and decarburization after the furnace burden is completely melted down, keeping the furnace burden boiling for at least 5min after the furnace burden is completely melted down, then completely removing oxidation slag, and supplementing slag into the furnace; then adding silicomanganese alloy and/or medium carbon ferromanganese alloy into the furnace for pre-deoxidation, adding ferrochromium alloy into the furnace after furnace slag is formed, and stirring; heating the ferrochrome alloy in a furnace for at least 10min, and adding high-carbon ferromanganese alloy; finally, adding a reducing agent into the furnace to perform a deoxidation and desulfurization process; after the end, adding ferrovanadium into the furnace and fully stirring for at least 5min under the conditions of thin slag and good reducing atmosphere; and when the content of each element in the molten steel meets the requirement, tapping to finish the smelting of the alloyed high manganese steel. The smelting process improves the mechanical property of the high manganese steel, improves the metallographic structure of the high manganese steel and prolongs the service life of the high manganese steel frog.
Description
Technical Field
The invention belongs to the technical field of high manganese steel metallurgy, and particularly relates to a smelting process of alloyed high manganese steel.
Background
In recent years, with the continuous improvement of the quality requirement of high manganese steel products, the performance of high manganese steel frog produced by the conventional smelting process can not meet the requirement of the railway industry developing at high speed, so that a new high manganese steel smelting process is needed to be invented to comprehensively improve the performance of high manganese steel, thereby meeting the requirement of the railway industry. The high manganese steel is subjected to alloying treatment, so that the mechanical property and the wear resistance of the high manganese steel can be further improved, and the application range of the high manganese steel is further expanded;
the alloyed high manganese steel (Mo-Cr-V) is applied to the railway industry because of good mechanical properties and metallographic structure, and if the alloyed high manganese steel (Mo-Cr-V) is operated according to the traditional high manganese steel smelting process, the yield of three alloys and the stability of chemical components of a finished product are difficult to ensure, so that the cost of the alloyed high manganese steel is high, and the product quality is not stable enough.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a smelting process of alloyed high manganese steel.
The technical problem to be solved by the invention is realized by the following technical scheme:
a smelting process of alloyed high manganese steel comprises the following steps:
step 1: charging common scrap steel raw materials and ferromolybdenum into an electric arc furnace to form furnace burden, and uniformly dispersing the ferromolybdenum around an electrode of the electric arc furnace;
step 2: electrifying the electrode, melting the furnace charge, blowing oxygen into the furnace at the temperature of more than 1560 ℃ after the furnace charge is completely melted down, and carrying out dephosphorization and decarburization processes to ensure that the carbon content in the molten steel is 0.1-0.2% and the phosphorus content is less than 0.015%;
and step 3: after the dephosphorization and decarburization processes of the furnace burden are finished, keeping the furnace burden boiling for at least 5min, then completely removing oxidation slag, and supplementing slag charge into the furnace;
and 4, step 4: adding silicomanganese alloy and/or medium-carbon ferromanganese alloy into the furnace at the temperature of 1600-1630 ℃ for pre-deoxidation, adding ferrochrome alloy into the furnace after furnace slag is formed, keeping the temperature for at least 10min, and then adding high-carbon ferromanganese alloy;
and 5: adding a reducing agent into the furnace at the temperature of 1500-1530 ℃, and carrying out a deoxidation and desulfurization process, so that the sulfur content in the molten steel is less than or equal to 0.030%, and the mass concentration of oxygen is less than 10 ppm;
step 6: after the deoxidation and desulfurization process is finished, 70-80% of furnace slag is taken out, under the conditions of thin slag and good reducing atmosphere, vanadium-iron alloy is added into the furnace at the temperature of 1500-1530 ℃, the mixture is fully stirred for at least 5min, and then the content of each element in the molten steel is detected;
and 7: and after the content of each element in the molten steel meets the chemical composition requirement of the finished alloyed high manganese steel, tapping the molten steel at the temperature of 1485-1495 ℃ to finish smelting of the alloyed high manganese steel.
Further, the step 7 also comprises the step of adding 14-16 kg of silicon-barium-calcium composite alloy into the steel ladle which is baked and red hot for final deoxidation before tapping of the molten steel so as to ensure that the mass concentration of oxygen in the molten steel is less than 10 ppm.
Further, the reducing agent includes: carbon powder, silicon carbide and calcium silicate powder; and adding 4-5 kg of carbon powder, 3-4 kg of silicon carbide powder and 2-3 kg of calcium silicate powder into each ton of molten steel.
Further, the particle size of the ferro-molybdenum alloy is 10-50 mm; the particle size of the ferrochrome alloy is 10-50 mm; the particle size of the ferrovanadium alloy is 5-15 mm.
Furthermore, the addition amounts of the ferromolybdenum alloy, the ferrochromium alloy, the high-carbon ferromanganese alloy and the ferrovanadium alloy are all prepared according to the middle limit of the content of each element in the chemical components of the finished alloyed high-manganese steel.
Further, the chemical components of the finished product of the alloyed high manganese steel are as follows (by weight ratio): c: 0.95-1.35%; mn: 11.0-14.0%; si: 0.30-0.80%; mo: 0.20-1.20%; cr: 0.20 to 1.00 percent; v: 0.05-0.35%; p: less than or equal to 0.045%; s: less than or equal to 0.030 percent; the balance being Fe.
The invention has the beneficial effects that:
the alloying smelting process ensures the yield of the three alloys, finally achieves the aim of stabilizing the chemical components of the alloyed high manganese steel finished product, greatly improves the mechanical property of the high manganese steel, improves the metallographic structure of the high manganese steel and finally prolongs the service life of the high manganese steel frog.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
The embodiment of the invention provides a smelting process of alloyed high manganese steel, which comprises the following chemical components in percentage by weight: c: 0.95-1.35%; mn: 11.0-14.0%; si: 0.30-0.80%; mo: 0.20-1.20%; cr: 0.20 to 1.00 percent; v: 0.05-0.35%; p: less than or equal to 0.045%; s: less than or equal to 0.030 percent; the balance being Fe; the smelting process of the alloyed high manganese steel specifically comprises the following steps:
step 1: the common scrap steel raw material and the ferromolybdenum alloy are filled into an electric arc furnace to form a charging material, and the ferromolybdenum alloy is uniformly dispersed around an electrode of the electric arc furnace.
Before feeding, checking the conditions of a furnace body, a furnace cover, a water cooling system, an air supply system, electrical equipment and a mechanical transmission device, and checking whether residual steel residues in the furnace are completely removed, the sintering conditions of parts such as a furnace slope, a slag line and the like and the conditions in the furnace; proper lime is added at the furnace bottom before feeding, so that mechanical loss of furnace burden to the furnace bottom during subsequent charging is prevented, and meanwhile, slag can be formed in advance.
The common steel scrap raw materials are reasonably matched according to the size, the middle size and the small size, so that the steel scrap raw materials can be melted more quickly, and the cost is saved; the ferro-molybdenum alloy is added into the electric arc furnace along with the common scrap steel raw material, and is uniformly dispersed around the electrodes of the electric arc furnace when being added, so that the ferro-molybdenum alloy can be melted as soon as possible.
Wherein the Ferro-molybdenum alloy is FeMo60-B, and the granularity is 10-50 mm; the addition amount of the ferro-molybdenum alloy is prepared according to the middle limit of the molybdenum content in the chemical components of the alloyed high manganese steel; the specific addition amount calculation formula is as follows:
wherein, the feeding amount refers to the weight of the steel scrap raw materials added at the beginning: the middle limit of the finished product refers to the middle limit of the molybdenum content in the chemical components of the alloyed high manganese steel; the residual amount refers to the content of molybdenum in the molten steel before the ferromolybdenum alloy is added; the ferromolybdenum alloy component refers to the molybdenum content in the ferromolybdenum alloy; the yield is calculated according to the total yield of the ferro-molybdenum alloy recognized in the technical field of 90 percent.
Step 2: electrifying to melt the furnace burden, blowing oxygen in time to melt when the furnace burden is melted to 60 percent, and saving the melting time of the furnace burden; after the furnace charge is completely melted down, blowing oxygen into the furnace at the temperature of more than 1560 ℃ to carry out dephosphorization and decarburization processes, so that the carbon content in the molten steel is 0.1-0.2%, and the phosphorus content is less than 0.015%; and sampling and analyzing the contents of the five elements of C, Mn, Si, P and S in the molten steel.
Specifically, according to the phosphorus content in the molten steel, multiple times of dephosphorization operation can be adopted, and the decarburization operation can be carried out simultaneously. Blowing oxygen into the furnace at a temperature of more than 1560 ℃ so as to carry out dephosphorization and decarburization processes; since phosphorus is more easily removed than carbon, the dephosphorization process is already finished when the decarburization process is finished; the ordinary technicians in the field can judge that the carbon content of the molten steel is proper according to the color and the form of carbon flowers (commonly known in the industry) splashed by the molten steel, stop oxygen blowing, and then sample and analyze the content of five elements of C, Mn, Si, P and S in the molten steel; when the carbon content in the molten steel is between 0.1 and 0.2 percent and the phosphorus content is less than 0.015 percent, the process requirement is met; if the standard is not met, oxygen blowing, decarbonization and dephosphorization are continued until the standard is met.
And step 3: after the decarburization and dephosphorization process of the furnace burden is finished, keeping the furnace burden boiling for at least 5min, then completely removing oxidation slag and simultaneously adding slag charge into the furnace for slagging, wherein the slag charge is lime and fluorite, and the mass ratio of the lime to the fluorite is 3: 1.
And 4, step 4: rapidly adding silicomanganese alloy and/or medium-carbon ferromanganese alloy into the furnace at the temperature of 1600-1630 ℃ for pre-deoxidation, adding ferrochrome alloy into the furnace after furnace slag is formed, keeping the temperature for at least 10min, and then adding high-carbon ferromanganese alloy.
The silicon-manganese alloy and the medium-carbon ferromanganese alloy have two functions, namely, pre-deoxidation is carried out, which is the main function; secondly, preparing manganese, silicon and carbon alloy elements in the alloyed high manganese steel; the addition amount of the silicon-manganese alloy and the medium-carbon ferromanganese alloy is determined according to the actual situation on site, the requirement is that the pre-deoxidation effect can be ensured, the phosphorus content in the molten steel cannot exceed the standard, and the specific addition amount is not limited in the embodiment of the invention.
Wherein the grade of the ferrochrome is FeCr55C1.0, and the granularity requirement is 10-50 mm; the addition amount of the ferrochrome is prepared according to the middle limit of the chromium content in the chemical components of the alloyed high manganese steel. The specific addition amount calculation formula is as follows:
wherein, the material feeding amount refers to the weight of the steel scrap raw material added at the beginning: the middle limit of the finished product refers to the middle limit of the chromium content in the chemical components of the alloyed high manganese steel; the residual amount refers to the content of chromium in the molten steel before the ferrochrome is added; the ferrochrome composition refers to the chromium content in the ferrochrome; the yield is calculated according to the recognized yield of the ferrochrome alloy in the technical field of 95 percent.
And adding high-carbon ferromanganese alloy into the furnace at the temperature of 1600-1630 ℃ to further prepare manganese, silicon and carbon elements in the molten steel.
The specific addition calculation formula of the high-carbon ferromanganese alloy is as follows:
wherein, the material feeding amount refers to the weight of the steel scrap raw material added at the beginning: the middle limit of the finished product refers to the middle limit of the manganese content in the chemical components of the alloyed high-manganese steel; the residual amount refers to the content of manganese in the molten steel before the high-carbon ferromanganese alloy is added; the ferromanganese alloy component refers to the manganese content in the high-carbon ferromanganese alloy; if the quality of the high carbon ferromanganese alloy is good, the yield is calculated according to 90 percent recognized in the technical field, and if the quality is general, the yield is calculated according to 85 percent recognized in the technical field.
After the high-carbon ferromanganese alloy is added into the furnace, fluorite is added into the furnace, so that the slag is adjusted to have good fluidity.
And 5: and (3) adding a reducing agent into the furnace at the temperature of 1500-1530 ℃, and performing a deoxidation and desulfurization process to ensure that the sulfur content in the molten steel is less than or equal to 0.030 percent and the mass concentration of oxygen is less than 10 ppm.
Wherein the reducing agent is carbon powder, silicon carbide and calcium silicate powder respectively; adding 4-5 kg of carbon powder, 3-4 kg of silicon carbide powder and 2-3 kg of calcium silicate powder into each ton of molten steel; carrying out reduction reaction at 1500-1530 ℃, after reduction for 15min, sampling and analyzing the contents of seven elements of C, Mn, Si, P, S, Cr and Mo in molten steel in the furnace, if the components of Mo and Cr are low, replenishing the ferro-molybdenum alloy and the ferrochrome alloy in time, and crushing the ferro-molybdenum alloy and the ferrochrome alloy when replenishing, wherein the granularity is controlled according to 5-15 mm.
Step 6: and when the deoxidation and the desulfurization are qualified, removing 70-80% of furnace slag, then adding ferrovanadium into the furnace at 1500-1530 ℃ under the conditions of thin slag and good reducing atmosphere, and fully stirring for at least 5 min.
The grade of the ferrovanadium alloy is FeV80-B, the granularity is 5-15 mm, and the addition amount of the ferrovanadium alloy is prepared according to the middle limit of the vanadium content in the chemical components of the alloyed high manganese steel; the specific addition amount calculation formula is as follows:
wherein, the feeding amount refers to the weight of the steel scrap raw material added at the beginning; the middle limit of the finished product refers to the middle limit of the vanadium content in the chemical components of the alloyed high manganese steel; the residual amount refers to the content of vanadium in the molten steel before the vanadium-iron alloy is added; the ferrovanadium yield is calculated as 92% as recognized in the art.
Sampling and analyzing the contents of eight elements of C, Mn, Si, P, S, Cr, Mo and V, determining whether to supplement high-carbon ferromanganese, ferromolybdenum, ferrochromium and ferrovanadium according to conditions, fully stirring, continuously sampling twice to analyze the content of each element of the molten steel in the furnace until the contents of the elements of two continuously sampled steel samples are consistent.
And 7: and after the content of each element in the molten steel is detected to meet the chemical composition requirement of the finished alloyed high manganese steel, tapping the molten steel at the temperature of 1485-1495 ℃ to finish smelting of the alloyed high manganese steel.
Before tapping of molten steel, in order to prevent oxygen in air from entering the molten steel and to prevent the oxygen content in the alloyed high manganese steel from exceeding the standard, 15kg of silicon-barium-calcium composite alloy is added into a steel ladle which is baked to be red hot for final deoxidation, and then the molten steel is tapped at the temperature of 1485-1495 ℃; and the time from the addition of the reducing agent to the reduction period during tapping is not less than 35min, thereby ensuring the reduction effect.
Before tapping, the power is cut off, the electrode is lifted, the tapping hole is opened, the furnace shaking large hole taps steel, the steel flow is concentrated, the steel slag is in the same flow, the steel slag is generally required to be completely tapped within 3min, and the steel flow is prevented from directly scouring the plug rod and the wall of the steel ladle; after tapping, measuring the temperature in the steel ladle, taking a steel sample in the steel ladle to analyze chemical components, and entering the next procedure after the steel sample is qualified.
The physical and chemical properties of the three alloys of molybdenum-chromium-vanadium are greatly different, so that the adding time is different: the ferro-molybdenum alloy has high density and high melting point and is not easy to oxidize, so the ferro-molybdenum alloy is added along with the scrap steel during feeding; the density and melting point of the ferrochrome alloy are similar to those of medium carbon ferromanganese alloy and silicon-manganese alloy, so the ferrochrome alloy and the silicon-manganese alloy are added together; the ferrovanadium alloy is easily oxidized and has a low melting point, so the ferrovanadium alloy is added at the end of the reduction period.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. The smelting process of the alloyed high manganese steel is characterized by comprising the following steps of:
step 1: charging common scrap steel raw materials and ferromolybdenum into an electric arc furnace to form furnace burden, and uniformly dispersing the ferromolybdenum around an electrode of the electric arc furnace;
step 2: electrifying the electrode, melting the furnace charge, blowing oxygen into the furnace at the temperature of more than 1560 ℃ after the furnace charge is completely melted down, and carrying out dephosphorization and decarburization processes to ensure that the carbon content in the molten steel is 0.1-0.2% and the phosphorus content is less than 0.015%;
and step 3: after the dephosphorization and decarburization processes of the furnace burden are finished, keeping the furnace burden boiling for at least 5min, then completely removing oxidation slag, and supplementing slag charge into the furnace;
and 4, step 4: adding silicomanganese alloy and/or medium-carbon ferromanganese alloy into the furnace at the temperature of 1600-1630 ℃ for pre-deoxidation, adding ferrochrome alloy into the furnace after furnace slag is formed, keeping the temperature for at least 10min, and then adding high-carbon ferromanganese alloy;
and 5: adding a reducing agent into the furnace at the temperature of 1500-1530 ℃, and carrying out a deoxidation and desulfurization process, so that the sulfur content in the molten steel is less than or equal to 0.030%, and the mass concentration of oxygen is less than 10 ppm;
step 6: after the deoxidation and desulfurization process is finished, 70-80% of furnace slag is taken out, under the conditions of thin slag and good reducing atmosphere, vanadium-iron alloy is added into the furnace at the temperature of 1500-1530 ℃, the mixture is fully stirred for at least 5min, and then the content of each element in the molten steel is detected;
and 7: and after the content of each element in the molten steel meets the chemical composition requirement of the finished alloyed high manganese steel, tapping the molten steel at the temperature of 1485-1495 ℃ to finish smelting of the alloyed high manganese steel.
2. The smelting process of the alloyed high manganese steel according to claim 1, further comprising the step 7 of adding 14-16 kg of silicon-barium-calcium composite alloy into a baked red hot ladle for final deoxidation before tapping of molten steel to ensure that the mass concentration of oxygen in the molten steel is less than 10 ppm.
3. A process for smelting alloyed high manganese steel according to claim 1 or 2, wherein the reducing agent comprises: carbon powder, silicon carbide and calcium silicate powder; and adding 4-5 kg of carbon powder, 3-4 kg of silicon carbide powder and 2-3 kg of calcium silicate powder into each ton of molten steel.
4. The smelting process of the alloyed high manganese steel according to claim 3, wherein the grain size of the ferromolybdenum alloy is 10-50 mm; the particle size of the ferrochrome alloy is 10-50 mm; the particle size of the ferrovanadium alloy is 5-15 mm.
5. The process for smelting alloyed high manganese steel according to claim 4, wherein the addition amounts of the ferromolybdenum alloy, ferrochromium alloy, high-carbon ferromanganese alloy and ferrovanadium alloy are each formulated according to the medium limit of the content of each element in the chemical composition of the finished alloyed high manganese steel.
6. The process for smelting alloyed high manganese steel according to claim 5, wherein the chemical composition of the finished alloyed high manganese steel is as follows (by weight): c: 0.95-1.35%; mn: 11.0-14.0%; si: 0.30-0.80%; mo: 0.20-1.20%; cr: 0.20 to 1.00 percent; v: 0.05-0.35%; p: less than or equal to 0.045%; s: less than or equal to 0.030 percent; the balance being Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110300234.8A CN113061798A (en) | 2021-03-22 | 2021-03-22 | Smelting process of alloyed high manganese steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110300234.8A CN113061798A (en) | 2021-03-22 | 2021-03-22 | Smelting process of alloyed high manganese steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113061798A true CN113061798A (en) | 2021-07-02 |
Family
ID=76563455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110300234.8A Pending CN113061798A (en) | 2021-03-22 | 2021-03-22 | Smelting process of alloyed high manganese steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113061798A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100122A (en) * | 1977-02-14 | 1978-09-01 | Kobe Steel Ltd | High strength non-magnetic iron reinforcing rod |
| EP1878811A1 (en) * | 2006-07-11 | 2008-01-16 | ARCELOR France | Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced |
| CN101525718A (en) * | 2009-04-22 | 2009-09-09 | 首钢总公司 | Alloying process for stably and precisely controlling molybdenum content in steel |
| CN106795603A (en) * | 2014-10-01 | 2017-05-31 | 新日铁住金株式会社 | High-strength oil well steel and oil well pipe |
| CN106834888A (en) * | 2017-02-09 | 2017-06-13 | 北京工业大学 | A kind of high-strength abrasion-proof cast steel lining board and preparation method thereof |
| CN108546812A (en) * | 2018-05-14 | 2018-09-18 | 东北大学 | A kind of preparation method of high-strength medium managese steel plate |
| CN108754068A (en) * | 2018-05-31 | 2018-11-06 | 安徽环渤湾高速钢轧辊有限公司 | High pre- finish rolling high speed steel roll collar of line and preparation method thereof |
| CN109943764A (en) * | 2019-04-24 | 2019-06-28 | 西王金属科技有限公司 | A kind of railroad train connection high intensity 23Mn2CrNiMoVREA steel and preparation method thereof |
| CN111378909A (en) * | 2020-04-28 | 2020-07-07 | 云南昆钢耐磨材料科技股份有限公司 | High-toughness high manganese steel lining plate and production process thereof |
-
2021
- 2021-03-22 CN CN202110300234.8A patent/CN113061798A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53100122A (en) * | 1977-02-14 | 1978-09-01 | Kobe Steel Ltd | High strength non-magnetic iron reinforcing rod |
| EP1878811A1 (en) * | 2006-07-11 | 2008-01-16 | ARCELOR France | Process for manufacturing iron-carbon-manganese austenitic steel sheet with excellent resistance to delayed cracking, and sheet thus produced |
| CN101525718A (en) * | 2009-04-22 | 2009-09-09 | 首钢总公司 | Alloying process for stably and precisely controlling molybdenum content in steel |
| CN106795603A (en) * | 2014-10-01 | 2017-05-31 | 新日铁住金株式会社 | High-strength oil well steel and oil well pipe |
| CN106834888A (en) * | 2017-02-09 | 2017-06-13 | 北京工业大学 | A kind of high-strength abrasion-proof cast steel lining board and preparation method thereof |
| CN108546812A (en) * | 2018-05-14 | 2018-09-18 | 东北大学 | A kind of preparation method of high-strength medium managese steel plate |
| CN108754068A (en) * | 2018-05-31 | 2018-11-06 | 安徽环渤湾高速钢轧辊有限公司 | High pre- finish rolling high speed steel roll collar of line and preparation method thereof |
| CN109943764A (en) * | 2019-04-24 | 2019-06-28 | 西王金属科技有限公司 | A kind of railroad train connection high intensity 23Mn2CrNiMoVREA steel and preparation method thereof |
| CN111378909A (en) * | 2020-04-28 | 2020-07-07 | 云南昆钢耐磨材料科技股份有限公司 | High-toughness high manganese steel lining plate and production process thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘辉杰: "《炼钢生产》", 28 February 2016, 冶金工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020093710A1 (en) | High-purity acid-resistant pipeline steel smelting process | |
| CN102586685B (en) | Smelting process of steel for high-titanium alloy welding wire | |
| CN113789472B (en) | Alloy cast steel, and manufacturing method and application thereof | |
| CN101121987A (en) | Smelting method for titanium-containing austenitic stainless steel | |
| CN105039648A (en) | Method for smelting low-carbon and high-manganese-content molten steel through argon oxygen decarburizing furnace | |
| CN102943148A (en) | Method for producing high-purity stainless steel | |
| CN103403194B (en) | The sulfur method of steel | |
| CN105950826B (en) | Deoxidizing agent for refining slag of ladle refining furnace and use method thereof | |
| CN109576577A (en) | The production method of II steel of atmospheric corrosion resistance welding wire TH550-NQ- | |
| CN115247225A (en) | Method for smelting UNS N06600 steel by using intermediate frequency furnace | |
| CN105886699B (en) | A kind of smelting process for reducing hot-work die 4Cr5MoSiV1 steel oxygen contents | |
| CN108385035A (en) | Using the method for pro-molten refining slag external refining 14Cr1Mo steel alloys | |
| CN112553406A (en) | Steel plate and control method of content of B element in steel | |
| CN109762958B (en) | Process for smelting tungsten-containing high-speed steel | |
| CN109161786B (en) | Smelting method of chromium-molybdenum steel for hydrogen-contacting equipment | |
| CN112481550B (en) | Smelting process of lanthanum-cerium-rare earth alloy die steel | |
| CN114292984B (en) | LF refining slag component research [ Mn ] [ Si ] element RC process method | |
| CN113061798A (en) | Smelting process of alloyed high manganese steel | |
| CN101565792B (en) | Method for smelting boron steel | |
| CN113265509A (en) | Production method for smelting nickel-based stainless steel by using nickel hydroxide as raw material in electric furnace | |
| CN1962887A (en) | Al-Mn-Fe composite deoxidizer | |
| CA2126116A1 (en) | Blended charge for steel production | |
| CN110819767A (en) | Refining agent and refining process for scrap iron steelmaking | |
| CN105039649A (en) | Method for smelting high-carbon-content and high-manganese-content molten steel through argon oxygen decarburizing furnace | |
| CN109913644B (en) | Process for alloying smelting steel for semi-high speed steel roller in black tungsten concentrate intermediate frequency furnace |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210702 |