CN109338042A - A kind of dedicated refining slag of ladle for reducing P element content in molten steel - Google Patents
A kind of dedicated refining slag of ladle for reducing P element content in molten steel Download PDFInfo
- Publication number
- CN109338042A CN109338042A CN201811429186.7A CN201811429186A CN109338042A CN 109338042 A CN109338042 A CN 109338042A CN 201811429186 A CN201811429186 A CN 201811429186A CN 109338042 A CN109338042 A CN 109338042A
- Authority
- CN
- China
- Prior art keywords
- parts
- powder
- steel
- refining slag
- molten 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
- 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/076—Use of slags or fluxes as treating agents
-
- 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)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a kind of dedicated refining slags of the ladle for reducing P element content in molten steel, comprise the following components in parts by weight: 5-10 parts of silica, 70-80 parts of active lime powder, 10-12 parts of Fluorspar Powder, AD3020-30 parts, 3-7 parts of magnesia powder, 10-12 parts of molybdenum powder, 3-5 parts of tungsten powder, 7-9 parts of chromium powder, 40-50 parts of pre-melted refining slag.Beneficial effects of the present invention, since this invention takes above-mentioned technical proposals, compared with prior art, the present invention has fusing point low, and viscosity coefficient of dross is small, good fluidity, slagging are fast；Slag charge sulfur capacity is big, preferable desulfurization, deoxidation, dephosphorization effect, while can effectively adsorb steel inclusion, improves Molten Steel Cleanliness, can reduce the advantages of steel-making cost again.The P element in steel is reduced, and steel is enabled to be resistant to low temperature.
Description
Technical field
The present invention relates to a kind of field of metallurgy, the dedicated essence of specifically a kind of ladle for reducing P element content in molten steel
Refine slag.
Background technique
Currently, the ladle refining slag that steel mill of China uses is mostly used in refining furnace, have fritting and non-fritting, add
In refining furnace refining 30-50min after entering, the purpose of molten steel of refining, balanced molten steel composition is played.But for current some matter
Amount requires less high steel grade, and many steel mills are all reluctant by refining furnace, if because one heat steel water is averaged by refining furnace
Cost will at least increase by 80 yuan or more, in the case where existing market profit margin is smaller and smaller, all not upper essence of many steel mills
Refining.But as market is higher and higher to product quality requirement, if the quantity of slag is big under converter, molten iron is not again preprocessed, section is smelted
It plays fastly, Molten Steel Cleanliness will be caused to reduce in this way, phosphorus sulfur content is higher, leads to cast internal segregation aggravation in bad process of setting, has
Evil material collection, can cause to cast when serious it is bad it is internal there is defect, it is final to influence mentioning for internal quality of steel plate and mechanical performance
Height influences client's use, limit product sale, to influence the profit of enterprise.
Summary of the invention
The purpose of the present invention is to provide topics, to solve the problems mentioned in the above background technology.
To achieve the above object, this explanation provides the following technical solutions: a kind of steel for reducing P element content in molten steel
Dedicated refining slag is wrapped, is comprised the following components in parts by weight: 5-10 parts of silica, 70-80 parts of active lime powder, Fluorspar Powder
10-12 parts, AD3020-30 parts, 3-7 parts of magnesia powder, 10-12 parts of molybdenum powder, 3-5 parts of tungsten powder, 7-9 parts of chromium powder, pre-melted refining slag
40-50 parts.
Further, it comprises the following components in parts by weight: 5 parts of silica, 70 parts of active lime powder, Fluorspar Powder 10
Part, AD3020 parts, 3 parts of magnesia powder, 10 parts of molybdenum powder, 3 parts of tungsten powder, 7 parts of chromium powder, 40 parts of pre-melted refining slag.
Further, it comprises the following components in parts by weight: 8 parts of silica, 75 parts of active lime powder, Fluorspar Powder 11
Part, AD3025 parts, 4 parts of magnesia powder, 11 parts of molybdenum powder, 4 parts of tungsten powder, 8 parts of chromium powder, 45 parts of pre-melted refining slag.
Further, it comprises the following components in parts by weight: 0 part of silica 1,80 parts of active lime powder, Fluorspar Powder 12
Part, AD3030 parts, 7 parts of magnesia powder, 12 parts of molybdenum powder, 5 parts of tungsten powder, 9 parts of chromium powder, 50 parts of pre-melted refining slag.
Compared with prior art, the beneficial effects of the present invention are: beneficial effects of the present invention, since this invention takes upper
Technical solution is stated, compared with prior art, the present invention has fusing point low, and viscosity coefficient of dross is small, good fluidity, slagging are fast；Slag charge sulphur
Capacity is big, preferable desulfurization, deoxidation, dephosphorization effect, while can effectively adsorb steel inclusion, improves Molten Steel Cleanliness, again
The advantages of steel-making cost can be reduced.The P element in steel is reduced, and steel is enabled to be resistant to low temperature.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to what the present invention protected
Range.
Embodiment 1:
A kind of dedicated refining slag of ladle for reducing P element content in molten steel, comprises the following components in parts by weight: dioxy
5 parts of SiClx, 70 parts of active lime powder, 10 parts of Fluorspar Powder, AD3020 parts, 3 parts of magnesia powder, 10 parts of molybdenum powder, 3 parts of tungsten powder, chromium powder
7 parts, 40 parts of pre-melted refining slag.
Embodiment 2:
A kind of dedicated refining slag of ladle for reducing P element content in molten steel, comprises the following components in parts by weight: dioxy
8 parts of SiClx, 75 parts of active lime powder, 11 parts of Fluorspar Powder, AD3025 parts, 4 parts of magnesia powder, 11 parts of molybdenum powder, 4 parts of tungsten powder, chromium powder
8 parts, 45 parts of pre-melted refining slag.
Embodiment 3:
A kind of dedicated refining slag of ladle for reducing P element content in molten steel, comprises the following components in parts by weight: dioxy
10 parts of SiClx, 80 parts of active lime powder, 12 parts of Fluorspar Powder, AD3030 parts, 7 parts of magnesia powder, 12 parts of molybdenum powder, 5 parts of tungsten powder, chromium
9 parts of powder, 50 parts of pre-melted refining slag.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, nothing
By from the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by institute
Attached claim rather than foregoing invention limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes be included within the present invention.
Although not each embodiment is only wrapped in addition, it should be understood that present specification is described in terms of embodiments
Containing an independent technical solution, this narrating mode of invention book is merely for the sake of clarity, and those skilled in the art should
As a whole by invention book, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of dedicated refining slag of ladle for reducing P element content in molten steel, which is characterized in that including following parts by weight
Component: 5-10 parts of silica, 70-80 parts of active lime powder, 10-12 parts of Fluorspar Powder, AD3020-30 parts, 3-7 parts of magnesia powder,
10-12 parts of molybdenum powder, 3-5 parts of tungsten powder, 7-9 parts of chromium powder, 40-50 parts of pre-melted refining slag.
2. the dedicated refining slag of a kind of ladle for reducing P element content in molten steel according to claim 1, feature exist
In comprising the following components in parts by weight: 5 parts of silica, 70 parts of active lime powder, 10 parts of Fluorspar Powder, AD3020 parts, magnesia
3 parts of powder, 10 parts of molybdenum powder, 3 parts of tungsten powder, 7 parts of chromium powder, 40 parts of pre-melted refining slag.
3. the dedicated refining slag of a kind of ladle for reducing P element content in molten steel according to claim 1, feature exist
In comprising the following components in parts by weight: 8 parts of silica, 75 parts of active lime powder, 11 parts of Fluorspar Powder, AD3025 parts, magnesia
4 parts of powder, 11 parts of molybdenum powder, 4 parts of tungsten powder, 8 parts of chromium powder, 45 parts of pre-melted refining slag.
4. the dedicated refining slag of a kind of ladle for reducing P element content in molten steel according to claim 1, feature exist
In comprising the following components in parts by weight: 0 part of silica 1,80 parts of active lime powder, 12 parts of Fluorspar Powder, AD3030 parts, magnesia
7 parts of powder, 12 parts of molybdenum powder, 5 parts of tungsten powder, 9 parts of chromium powder, 50 parts of pre-melted refining slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811429186.7A CN109338042A (en) | 2018-11-27 | 2018-11-27 | A kind of dedicated refining slag of ladle for reducing P element content in molten steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811429186.7A CN109338042A (en) | 2018-11-27 | 2018-11-27 | A kind of dedicated refining slag of ladle for reducing P element content in molten steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109338042A true CN109338042A (en) | 2019-02-15 |
Family
ID=65318281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811429186.7A Pending CN109338042A (en) | 2018-11-27 | 2018-11-27 | A kind of dedicated refining slag of ladle for reducing P element content in molten steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109338042A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343680A (en) * | 2008-09-04 | 2009-01-14 | 西峡龙成冶金材料有限公司 | Metallurgy type refining slag special for ladle and manufacture method thereof |
| CN101805816A (en) * | 2009-02-13 | 2010-08-18 | 宝钢集团上海梅山有限公司 | Ladle slag activator and application thereof |
| CN108348992A (en) * | 2015-11-05 | 2018-07-31 | 新日铁住金株式会社 | Continuously casting covering slag and continuous casing |
-
2018
- 2018-11-27 CN CN201811429186.7A patent/CN109338042A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343680A (en) * | 2008-09-04 | 2009-01-14 | 西峡龙成冶金材料有限公司 | Metallurgy type refining slag special for ladle and manufacture method thereof |
| CN101805816A (en) * | 2009-02-13 | 2010-08-18 | 宝钢集团上海梅山有限公司 | Ladle slag activator and application thereof |
| CN108348992A (en) * | 2015-11-05 | 2018-07-31 | 新日铁住金株式会社 | Continuously casting covering slag and continuous casing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103572001B (en) | Method for controlling alkalinity of ultra-low-sulfur steel LF (ladle furnace) slag | |
| CN101343680B (en) | Metallurgy type refining slag special for ladle and manufacture method thereof | |
| CN101760585A (en) | Deep-desulphurizing slag system containing BaO and Li2O and method for producing ultralow-sulfur steel by adopting same | |
| CN104928431A (en) | Method for single slag smelting low-carbon high-phosphorus and high-weathering steel by adopting combined blown converter | |
| CN102400032B (en) | Large-cross-section nodular cast iron | |
| CN103088244A (en) | Ferromanganese alloy and preparation method thereof | |
| CN102747192A (en) | Method for smelting ultralow-sulfur steel | |
| CN102808067B (en) | Refining method for producing low alloy steel by refining and slagging of bauxite in LF (Ladle Furnace) | |
| CN102002550A (en) | Slag modifier for converter refining | |
| CN106929747A (en) | A kind of solution strengthening ferrite vermicular cast iron and its production method | |
| CN102115801A (en) | Method for producing high-quality spheroidal graphite cast iron and spheroidal graphite cast iron prepared thereby | |
| WO2012155330A1 (en) | Agent for steelmaking made of aluminium-smelting scum | |
| CN109338042A (en) | A kind of dedicated refining slag of ladle for reducing P element content in molten steel | |
| CN103556040A (en) | Preparation method of nodular cast iron alloy | |
| CN102094103A (en) | Method for increasing endpoint carbon content of converter | |
| CN102041427A (en) | Grey cast iron production process | |
| CN109371201A (en) | A kind of dedicated refining slag of ladle for reducing S constituent content in molten steel | |
| CN115261711B (en) | Silicon solid solution reinforced ferrite nodular cast iron for wind power casting and preparation method thereof | |
| CN111455169A (en) | Manganese ore directly-alloyed ball and preparation method thereof | |
| CN109338043A (en) | It is a kind of for improving the metallurgy type refining slag of steel hardness | |
| CN101121952A (en) | Micro-carbon, low-silicon, low-phosphor and low-sulphur aluminum-magnesium-calcium-iron alloy used for smelting steel and deoxidizing | |
| CN109207670A (en) | A kind of metallurgy type refining slag special for ladle | |
| CN102212649B (en) | Iron alloy for silicon-based steel making composite deoxidizer and preparation method of iron alloy | |
| CN104946850A (en) | Converter tapping slag washing method using low-Al alumina ball | |
| CN102653810A (en) | Ferro-silico-manganese alloy for smelting low-silicon low-carbon steel |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190215 |