CN103627846A - Method for performing direct alloying to molybdenum oxide for steelmaking - Google Patents
Method for performing direct alloying to molybdenum oxide for steelmaking Download PDFInfo
- Publication number
- CN103627846A CN103627846A CN201310591050.7A CN201310591050A CN103627846A CN 103627846 A CN103627846 A CN 103627846A CN 201310591050 A CN201310591050 A CN 201310591050A CN 103627846 A CN103627846 A CN 103627846A
- Authority
- CN
- China
- Prior art keywords
- molybdenum oxide
- steel
- molybdenum
- iron
- batch mixing
- 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.)
- Granted
Links
- 229910000476 molybdenum oxide Inorganic materials 0.000 title claims abstract description 49
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005275 alloying Methods 0.000 title claims abstract description 14
- 238000009628 steelmaking Methods 0.000 title claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 102
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 229910052742 iron Inorganic materials 0.000 claims abstract description 51
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 24
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 24
- 239000004571 lime Substances 0.000 claims abstract description 24
- 239000007787 solid Substances 0.000 claims abstract description 20
- 238000010891 electric arc Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 238000006722 reduction reaction Methods 0.000 claims description 6
- 229910000805 Pig iron Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract description 31
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 31
- 239000011733 molybdenum Substances 0.000 abstract description 31
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 4
- 229910001309 Ferromolybdenum Inorganic materials 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- 238000002844 melting Methods 0.000 abstract 2
- 230000008018 melting Effects 0.000 abstract 2
- 238000003723 Smelting Methods 0.000 description 17
- 238000011084 recovery Methods 0.000 description 12
- 229910001182 Mo alloy Inorganic materials 0.000 description 10
- 241001062472 Stokellia anisodon Species 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- BIOOACNPATUQFW-UHFFFAOYSA-N calcium;dioxido(dioxo)molybdenum Chemical compound [Ca+2].[O-][Mo]([O-])(=O)=O BIOOACNPATUQFW-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000021050 feed intake Nutrition 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a method for performing direct alloying to molybdenum oxide for steelmaking. The method comprises the steps of adding a mixed material and a metal material into an electric arc furnace, wherein the mixed material is a mixture of molybdenum oxide and lime, the metal material consists of molten iron and solid steel, and the content of the molten iron is more than or equal to 50wt% on the basis of the total weight of the metal material. According to the method, the procedure for melting ferro-molybdenum alloy can be omitted, the resource utilization rate can be improved, the method is applicable to melting alloy steels with various molybdenum contents, and the economic benefit is tremendous.
Description
Technical field
The present invention relates to alloy field of iron and steel smelting, relate in particular to a kind of method of molybdenum oxide DIRECT ALLOYING electric-arc furnace steelmaking.
Background technology
Molybdenum in China ore resources reserves are abundant, the traditional method of smelting Mo-contained alloy steel is first molybdenum ore to be smelted into iron alloy, iron alloy is added to molten steel interalloy, its technical process is: mine selecting and purchasing → ferroalloy smelting → electric arc furnace smelting steel alloy → external refining → continuous casting or die casting again.Yet traditional technical process exists the shortcomings such as high such as energy consumption, molybdenum recovery is low, environmental pollution is serious, labour intensity is large, DIRECT ALLOYING steel-making in recent years just progressively causes research concern.
DIRECT ALLOYING refers in steelmaking process, and the metal oxide after oxidizing roasting is directly added in molten steel reduction reaction occurs, and generates alloying element and enters and in molten steel, realize alloying.Compare with the traditional technology of smelting molybdenum alloy steel, utilize the oxide compound DIRECT ALLOYING steel-making of molybdenum, saved the operation of producing ferro-molybdenum, can accompanied by substantial power saving, reduce and pollute, reduce costs.
But the producer that adopts at present molybdenum oxide DIRECT ALLOYING technology to smelt, generally usings steel scrap as raw material, the reduction reaction speed of molybdenum oxide is slower, and steel scrap still has the not reduction of a small amount of molybdenum when molten clear, smelting cycle is increased; If the add-on of molybdenum oxide is larger, when smelting, reaction fierceness, easily causes the boiling of slag; And the volatilization of more difficult control molybdenum in fusion process, cause molybdenum recovery to reduce, molybdenum recovery less than 90% often when smelting high molybdenum steel particularly, therefore existing DIRECT ALLOYING technology is more common in and is smelted low molybdenum alloy steel, and comparatively rare for the report of high molybdenum alloy steel.
China's scrap resources is nervous, and the cost of electric energy is very expensive again, the smelting technology of exploiting economy, and the add-on of expansion molybdenum oxide, the rate of recovery of raising molybdenum alloy element, the every technology, quality and the economic target that improve steel-making have important practical significance simultaneously.
Summary of the invention
The object of the invention is to, by optimizing burden composition, simplify technical process, improve the quality of products and molybdenum recovery, and the method is applicable to smelt the steel alloy of various molybdenum content.
The invention provides a kind of method of molybdenum oxide DIRECT ALLOYING steel-making, described method comprises: in electric arc furnace, add batch mixing and metal charge, described batch mixing is the mixture of molybdenum oxide and lime, described metal charge consists of molten iron and solid iron and steel stock, wherein, gross weight based on metal charge, the content >=50wt% of molten iron.
According to embodiments of the invention, the gross weight based on batch mixing, the content >=20wt% of lime.
According to embodiments of the invention, the particle diameter≤50mm of batch mixing.
According to embodiments of the invention, the weight ratio of batch mixing and metal charge can be 1:10～1:100.
According to embodiments of the invention, in electric arc furnace, the temperature of molybdenum oxide reduction reaction may be controlled to 800 ℃～1800 ℃.
According to embodiments of the invention, when cloth, can first add batch mixing to add again solid iron and steel stock to be finally blended into molten iron.
According to embodiments of the invention, described molybdenum oxide can be at least one in molybdenum oxide powder, molybdenum oxide particle and molybdenum oxide lump.
According to embodiments of the invention, described solid iron and steel stock can be at least one in steel scrap, the pig iron, tank side, tank iron, slag steel and briquetting.
Embodiment
Below in conjunction with embodiment, further describe the present invention, but the invention is not restricted to this.
The invention provides a kind of method of molybdenum oxide DIRECT ALLOYING steel-making, described method comprises: in electric arc furnace, add batch mixing and metal charge, described batch mixing is the mixture of molybdenum oxide and lime, described metal charge consists of molten iron and solid iron and steel stock, wherein, gross weight based on metal charge, molten iron >=50wt%.
According to the present invention, for the optimization of raw material mix, metal charge adopts liquid iron charging with part, to substitute the solid iron and steel stocks such as steel scrap.Adding of molten iron can bring following effect.
First, the conventional molten iron of field of steel-making all contains the manganese of the carbon of 4% left and right, the silicon of 0.45% left and right and 0.30% left and right conventionally, these chemical compositions can provide enough reductive agents for reaction, therefore, the present invention does not need to add the reductive agents such as carbon dust or silicon carbide just can keep the reducing atmosphere in stove again.
Secondly, because the fusing point of molybdenum oxide only has 795 ℃, and molten iron temperature generally all can be over 1200 ℃, therefore, liquid iron charging can bring a large amount of physical thermals, reduces electric power feeding time, save solid iron and steel stock and melt required electric energy input, also can reduce scaling loss and the volatilization of molybdenum oxide.
The 3rd, molten iron is as a kind of purer metal charge, do not contain impurity element so much in steel scrap, the water evaporates of the physical thermal that molten iron brings in also can accelerating solid iron and steel stock, impel molten bath to form in advance, the CO gas that C-O reaction produces has the time more fully to remove obnoxious flavour and the inclusiones such as nitrogen, hydrogen, makes the chemical composition in molten steel more stable, improves the quality of molten steel.
According to embodiments of the invention, molybdenum oxide can together add in electric arc furnace by mode and the solid iron and steel stock mixing mutually with lime, and the effect of lime is to generate calcium molybdate by being combined with molybdenum oxide, thus the volatilization of inhibited oxidation molybdenum, the rate of recovery of raising molybdenum.The present invention is when batch mixing, and the add-on of lime is not less than the 20wt% of the mixture total weight amount of molybdenum oxide and lime.
According to embodiments of the invention, molybdenum oxide and lime can first be broken into bulk, then proportionally take mechanically mixing, preferably, and the particle diameter≤50mm of batch mixing.Yet, the invention is not restricted to this, described batch mixing can be powdery, particle or bulk, and owing to containing partial oxidation calcium in molybdenum oxide, and the main component that calcium oxide is lime, so the actual add-on of lime also can slightly reduce.
According to embodiments of the invention, batch mixing and metal charge feed intake by weight 1:10～1:100, the add-on of molybdenum oxide is determined by the molybdenum content of alloy smelting steel, the add-on of lime is adjusted according to the phosphorus content of molten iron and solid iron and steel stock, according to entering the high or low of stove metal charge phosphorus content, suitably increase or reduce the add-on of lime in batch mixing.Wherein, the molybdenum content of smelting steel grade can not impact the add-on of lime, because the needed amount of lime of dephosphorization and smelting slag making is much larger than the desired amount of lime of batch mixing, even if smelt high molybdenum steel, lime adding amount is also much larger than the target call of the 20wt% of batch mixing.
According to embodiments of the invention, the fusing point of molybdenum oxide only has 795 ℃, and molten iron temperature is general over 1200 ℃, after being blended into molten iron, add the heat that stays steel remaining slag operation savings in electric arc furnace, more than in stove, temperature can rise to molybdenum oxide fusing point fast, furnace temperature reaction over 800 ℃ can be carried out, so the meaning of electric arc furnace heating is only to make solid iron and steel stock to accelerate fusing.Electric arc furnace molybdenum oxide reduction reaction temperature of the present invention is preferably at 800 ℃～1800 ℃.
According to embodiments of the invention, the batch mixing that can first add molybdenum oxide and lime, add again solid iron and steel stock to be finally blended into molten iron, this fusing and the slag making that is easy to lime by order of addition(of ingredients) light and heavy, first cool after heat, while molten iron also can accelerated reaction process to washing away, stirring of mixture in stove.If add batch mixing and solid iron and steel stock after being first blended into molten iron, due to the lower slagging that is difficult for of density of batch mixing, molybdenum oxide, dropping into the easily sharply scaling loss volatilization of moment of high temperature liquid iron, reduces molybdenum recovery.
According to embodiments of the invention, described molybdenum oxide can be at least one in molybdenum oxide powder, molybdenum oxide particle and molybdenum oxide lump.Be preferably molybdenum oxide particle or molybdenum oxide lump, adopt molybdenum oxide powder can enlarge active surface, fast reaction speed, but should be noted the volatilization of controlling molybdenum oxide, for example: batch mixing is very even, during oxygen blast, rifle position will be low etc.
According to embodiments of the invention, described solid iron and steel stock can be at least one in steel scrap, the pig iron, tank side, tank iron, slag steel and briquetting, wherein, high-quality steel scrap, the pig iron are because harmful element content is few, be easy to quick smelting, the rate of recovery is high, therefore price comparison is expensive, and the cheap steel scraps such as tank side, tank iron, slag steel, briquetting are relatively cheap, can choose and proportioning according to most economical mode.
Below in conjunction with concrete example, the present invention is described.
Example 1:
In 50 tons of electric furnaces, smelt the 20CrNiMoH steel containing molybdenum 0.15wt%～0.25wt%.Molybdenum oxide lump 240kg containing molybdenum 45wt% is evenly mixed with 1600kg lime, be filled in electric arc furnace, then add 21 tons of solid iron and steel stocks, be finally blended into 35 tons of molten iron, smelt.The molybdenum content of gained steel alloy is 0.205wt%, and molybdenum recovery reaches 94.91%.
Example 2:
In 50 tons of electric furnaces, smelt the 22CrMoH steel containing molybdenum 0.35wt%～0.45wt%.Molybdenum oxide lump 480kg containing molybdenum 45wt% is evenly mixed with 1600kg lime, be filled in electric arc furnace, then add 21 tons of solid iron and steel stocks, be finally blended into 35 tons of molten iron, smelt.The molybdenum content of gained steel alloy is 0.40wt%, and molybdenum recovery reaches 92.59%.
Example 3:
In 50 tons of electric furnaces, smelt the high molybdenum alloy steel grade containing molybdenum 1wt%～4wt%, the molybdenum oxide lump 2500kg containing molybdenum 45wt% is evenly mixed with 1600kg lime, be filled in electric arc furnace, then add 16 tons of solid iron and steel stocks, be finally blended into 40 tons of molten iron, smelt.The molybdenum content of the high molybdenum alloy steel of gained is 2.0wt% left and right, and molybdenum recovery reaches more than 90%.
In sum, method of the present invention has been saved the operation of ferroalloy smelting, reduces the whole energy consumption of smelting the technical process of molybdenum alloy steel, improves resource utilization, thereby can reduce carrying capacity of environment, remarkable in economical benefits.The present invention can be applicable to low molybdenum alloy steel to the smelting of high molybdenum alloy steel, for smelting high molybdenum alloy steel, adopts method of the present invention can make molybdenum recovery reach more than 90% especially.
The above embodiment that the present invention describes is only exemplary, is not for limiting the present invention.Those skilled in the art without departing from the principles and spirit of the present invention, can carry out various possible distortion and modification to above-described embodiment.Therefore, protection scope of the present invention should be as the criterion with the scope being defined in claims.
Claims (8)
1. the method for molybdenum oxide DIRECT ALLOYING steel-making, described method comprises: in electric arc furnace, add batch mixing and metal charge, described batch mixing is the mixture of molybdenum oxide and lime, described metal charge consists of molten iron and solid iron and steel stock, wherein, gross weight based on metal charge, the content >=50wt% of molten iron.
2. the method for claim 1, wherein gross weight based on batch mixing, the content >=20wt% of lime.
3. the method for claim 1, wherein particle diameter≤50mm of described batch mixing.
4. the method for claim 1, wherein the weight ratio of batch mixing and metal charge is 1:10～1:100.
The method of claim 1, wherein in electric arc furnace the temperature of molybdenum oxide reduction reaction to control be 800 ℃～1800 ℃.
6. the method for claim 1, wherein when cloth, first add batch mixing to add again solid iron and steel stock to be finally blended into molten iron.
7. the method for claim 1, wherein described molybdenum oxide is at least one in molybdenum oxide powder, molybdenum oxide particle and molybdenum oxide lump.
8. the method for claim 1, wherein described solid iron and steel stock is at least one in steel scrap, the pig iron, tank side, tank iron, slag steel and briquetting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591050.7A CN103627846B (en) | 2013-11-21 | 2013-11-21 | The method of molybdenum oxide DIRECT ALLOYING steel-making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310591050.7A CN103627846B (en) | 2013-11-21 | 2013-11-21 | The method of molybdenum oxide DIRECT ALLOYING steel-making |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103627846A true CN103627846A (en) | 2014-03-12 |
| CN103627846B CN103627846B (en) | 2015-10-28 |
Family
ID=50209291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310591050.7A Expired - Fee Related CN103627846B (en) | 2013-11-21 | 2013-11-21 | The method of molybdenum oxide DIRECT ALLOYING steel-making |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103627846B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017936A (en) * | 2014-06-10 | 2014-09-03 | 张家港市锦丰润尔发五金塑料厂 | Oxide steel-making method |
| CN105200185A (en) * | 2015-09-29 | 2015-12-30 | 南京钢铁股份有限公司 | Steelmaking alloying smelting process for oxide with molybdenum in electric furnaces with high molten iron ratios |
| CN107557516A (en) * | 2017-08-07 | 2018-01-09 | 济源职业技术学院 | The molybdenum oxide direct Reducing and Alloying process for making in converter |
| CN108048729A (en) * | 2017-12-15 | 2018-05-18 | 中钢集团邢台机械轧辊有限公司 | A kind of method that molybdenum element is added in steelmaking process |
| CN110592460A (en) * | 2019-08-29 | 2019-12-20 | 江苏省沙钢钢铁研究院有限公司 | Steelmaking method of non-oriented silicon steel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302914A (en) * | 2000-10-18 | 2001-07-11 | 钢铁研究总院 | Technology for smelting Mo-contained alloy steel with molybdenum oxide |
| CN103074543A (en) * | 2012-12-24 | 2013-05-01 | 河北节能耐火材料集团有限公司 | Manufacturing technology of steel containing molybdenum |
-
2013
- 2013-11-21 CN CN201310591050.7A patent/CN103627846B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302914A (en) * | 2000-10-18 | 2001-07-11 | 钢铁研究总院 | Technology for smelting Mo-contained alloy steel with molybdenum oxide |
| CN103074543A (en) * | 2012-12-24 | 2013-05-01 | 河北节能耐火材料集团有限公司 | Manufacturing technology of steel containing molybdenum |
Non-Patent Citations (3)
| Title |
|---|
| 姜英等: ""转炉中钼氧化物直接合金化炼钢热力学分析"", 《过程工程学报（增刊1）》 * |
| 李正邦 等: ""氧化钼直接合金化炼钢的发展"", 《钢铁研究学报》 * |
| 郭培民等: ""添加剂对氧化钼（MoO3）高温挥发的影响"", 《特殊钢》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017936A (en) * | 2014-06-10 | 2014-09-03 | 张家港市锦丰润尔发五金塑料厂 | Oxide steel-making method |
| CN105200185A (en) * | 2015-09-29 | 2015-12-30 | 南京钢铁股份有限公司 | Steelmaking alloying smelting process for oxide with molybdenum in electric furnaces with high molten iron ratios |
| CN105200185B (en) * | 2015-09-29 | 2017-07-28 | 南京钢铁股份有限公司 | A kind of smelting process of molybdenum-containing oxide in high hot metal ratio Alloying of Electric Furnace Steelmaking |
| CN107557516A (en) * | 2017-08-07 | 2018-01-09 | 济源职业技术学院 | The molybdenum oxide direct Reducing and Alloying process for making in converter |
| CN107557516B (en) * | 2017-08-07 | 2019-06-04 | 济源职业技术学院 | The molybdenum oxide direct Reducing and Alloying process for making in converter |
| CN108048729A (en) * | 2017-12-15 | 2018-05-18 | 中钢集团邢台机械轧辊有限公司 | A kind of method that molybdenum element is added in steelmaking process |
| CN110592460A (en) * | 2019-08-29 | 2019-12-20 | 江苏省沙钢钢铁研究院有限公司 | Steelmaking method of non-oriented silicon steel |
| CN110592460B (en) * | 2019-08-29 | 2021-06-29 | 江苏省沙钢钢铁研究院有限公司 | Steelmaking method of non-oriented silicon steel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103627846B (en) | 2015-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100469932C (en) | V2O5 direct alloying steelmaking technology | |
| CN106544467B (en) | A kind of high alloy Low-phosphorus Steel method in high molten iron proportion electric furnace smelting | |
| CN103469049B (en) | Molybdenum oxide DIRECT ALLOYING process for making | |
| CN101724752B (en) | Smelting method of medium ferrovanadium | |
| CN101724751B (en) | Method for smelting high vanadium ferrovanadium | |
| CN103627842B (en) | Method for enhancing end point carbon content in smelting medium-carbon steel from semisteel and semisteel steelmaking method | |
| CN103627846B (en) | The method of molybdenum oxide DIRECT ALLOYING steel-making | |
| CN105525055A (en) | Method for controlling splashing in less slag smelting decarbonization period of converter | |
| CN103114235A (en) | Core-spun thread for increasing N and V in molten steel and use method thereof | |
| CN106086608B (en) | A kind of method that low-carbon manganese-silicon is produced using carbon manganese slag | |
| CN102766726A (en) | Method for smelting stainless steel by high-chrome melt and dephosphorized pre-melt | |
| CN109628697B (en) | High-carbon dephosphorization method for smelting medium-high carbon steel grade in converter | |
| CN103642971A (en) | Method for improving steelmaking end-point carbon content of semisteel and semisteel steelmaking method | |
| CN104762488B (en) | A kind of method of direct vanadium alloying in esr process | |
| CN103643056B (en) | The smelting process of low carbon ferromanganese | |
| CN103627839A (en) | Semisteel steelmaking carbon content control method and semisteel steelmaking method | |
| CN103088186A (en) | Slag-making method for rapid dephosphorization of semisteel | |
| CN103642966B (en) | Method for improving high-carbon high-manganese steel converter smelting endpoint carbon content and steelmaking method | |
| CN103627851B (en) | Semisteel steelmaking temperature control method and semisteel steelmaking method | |
| CN105132611A (en) | Method for producing ultra-low phosphorous steel through single slag of converter | |
| CN104328243B (en) | Join carbon large power consumption control oxygen electrical furnace steelmaking process in right amount | |
| CN103643094B (en) | The smelting process of high carbon ferromanganese | |
| CN103205522B (en) | Method for smelting plain carbon steel from semi-steel | |
| CN103966387B (en) | Adopt the method for semi-steel making | |
| CN102634634A (en) | Method for producing high-alloy low-phosphorous steel used for boiler tube by adopting electric-arc furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151028 |