CN105541358A - High-quality chromium drainage sand for steel ladle - Google Patents
High-quality chromium drainage sand for steel ladle Download PDFInfo
- Publication number
- CN105541358A CN105541358A CN201511014796.7A CN201511014796A CN105541358A CN 105541358 A CN105541358 A CN 105541358A CN 201511014796 A CN201511014796 A CN 201511014796A CN 105541358 A CN105541358 A CN 105541358A
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- Prior art keywords
- sand
- ladle
- content
- chromium matter
- grade chromium
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- 239000004576 sand Substances 0.000 title claims abstract description 64
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000011651 chromium Substances 0.000 title claims abstract description 37
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 title abstract description 28
- 239000010959 steel Substances 0.000 title abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 84
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 23
- 239000006004 Quartz sand Substances 0.000 claims abstract description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 16
- 239000006229 carbon black Substances 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 16
- 239000010439 graphite Substances 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 238000007670 refining Methods 0.000 abstract description 17
- 238000009749 continuous casting Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 230000035515 penetration Effects 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 206010058490 Hyperoxia Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 230000000222 hyperoxic effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/44—Consumable closure means, i.e. closure means being used only once
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/42—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3241—Chromium oxides, chromates, or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/424—Carbon black
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention provides high-quality chromium drainage sand for a steel ladle, which is composed of 68-94wt% of chromium ore sand, 5-30wt% of sea sand, 0-15wt% of quartz sand, 1-12wt% of high-aluminum ball, 0-2.5wt% of graphite, 0.1-1wt% of carbon black and 0-1wt% of chrome green. The high-quality chromium drainage sand has the characteristics of strong molten steel erosion resistance, good molten steel penetration resistance, good high-temperature sintering performance, uniform particle size distribution and good fluidity, and can effectively improve the automatic pouring rate of a multiple-refining steel ladle. By using the product provided by the invention, the automatic pouring rate of the steel ladle can reach more than or equal to 99%, so as to guarantee the quality of multiple refined molten steel and safe and continuous production of a continuous casting process.
Description
Technical field
The invention belongs to metallurgy field, relate to a kind of stuffing sand, specifically a kind of ladle higher-grade chromium matter stuffing sand.
Background technology
Along with Chinese high-quality steel grade kind increases, require that in ladle, molten steel is through multiple refining, make the time of molten steel refining in ladle more and more longer, refining temperature is more and more higher.In order to ensure that billet quality and continuous casting workshop safe and continuous are produced, higher requirement is proposed to the stuffing sand in ladle.Current domestic production stuffing sand producer is a lot, but few for the ladle draining sand of the high casting rate of steel mill's multiple refining steel design.
At present, the stuffing sand that domestic stuffing sand manufacturer provides is generally common chromium matter stuffing sand or siliceous stuffing sand.Common chromium matter stuffing sand is made primarily of import chrome ore, quartz sand and carbonaceous additive.Although common chromium matter stuffing sand is also higher for general steel grade ladle self-opening rate, for the ladle of multiple refining, because refining time is long, refining temperature is high, and common chromium matter stuffing sand sintered layer thickens, and causes ladle can not automatic casting.Siliceous stuffing sand is made primarily of quartz sand, feldspar and appropriate carbonaceous additive.Although siliceous stuffing sand cost is low, refractoriness is low, easy excess agglomeration, and anti-molten steel coking property is poor, thus cause ladle self-opening rate low, burn hyperoxia, easily cause the disconnected problem such as to water of continuous casting, thus have impact on steel quality.
In this case, steel industry is when smelting, there is no custom-designed multiple refining steel, high casting rate ladle draining sand, thus cause multiple refining steel ladle automatic free-opening rate not high, excessively burn the problems such as oxygen, expensive, energy consumption is large, and bring huge financial loss to enterprise.According to current Problems existing, for steel mill's realistic situation, develop a kind of ladle higher-grade chromium matter stuffing sand, thus reach the object improving multiple refining steel ladle automatic free-opening rate.
Summary of the invention
The object of the present invention is to provide a kind of ladle higher-grade chromium matter stuffing sand, described this ladle higher-grade chromium matter stuffing sand to solve multiple refining steel ladle automatic free-opening rate in current mechanism not high, excessively burn oxygen, the technical problem that expensive, energy consumption is large.
The invention provides a kind of ladle higher-grade chromium matter stuffing sand, be made up of the material of following weight percents:
Chrome ore 68 ~ 94wt%;
Sea sand 5 ~ 30wt%;
Quartz sand 0 ~ 15wt%;
High aluminium ball 1 ~ 12wt%;
Graphite 0 ~ 2.5wt%;
Carbon black 0.1 ~ 1wt%;
Chrome green 0 ~ 1%.
Further, described ladle higher-grade chromium matter stuffing sand, is made up of the material of following weight percents:
Chrome ore 68 ~ 80wt%;
Sea sand 10 ~ 20wt%;
Quartz sand 0 ~ 5wt%;
High aluminium ball 5 ~ 10wt%;
Chrome green 0 ~ 0.5%;
Graphite 0.1 ~ 1.5wt%;
Carbon black 0.1 ~ 0.8wt%.
Further, described ladle higher-grade chromium matter stuffing sand, is made up of the material of following weight percents:
Chrome ore 75 ~ 85wt%;
Sea sand 5 ~ 10wt%;
Quartz sand 5 ~ 10wt%;
High aluminium ball 3 ~ 8wt%;
Chrome green 0.3 ~ 0.8%;
Graphite 0.6 ~ 2.0wt%;
Carbon black 0.2 ~ 0.8wt%.
Further, described ladle higher-grade chromium matter stuffing sand, is made up of the material of following weight percents:
Chrome ore 85 ~ 94wt%;
Sea sand 2 ~ 10wt%;
Quartz sand 1 ~ 5wt%;
High aluminium ball 1 ~ 5wt%;
Chrome green 0.1 ~ 0.6%;
Graphite 0.5 ~ 1.0wt%;
Carbon black 0.1 ~ 0.5wt%.
Further, the SiO of described extra large sand
2content>=98.5wt%; Sea sand grain composition is: 12 ~ 20 object particles are ﹤ 20wt%, and 20 ~ 40 object particles are 50 ~ 70wt%, and being less than 40 object particles is 5 ~ 20wt%.
Further, the SiO of described quartz sand
2content>=99.0wt%; Quartz sand particle grating is: 6 ~ 20 object particles are 30 ~ 50wt%, and 20 ~ 40 object particles are 40 ~ 60wt%, and being less than 40 object particles is ﹤ 10wt%.
Further, the Al of described high aluminium ball
2o
3content ﹥ 70wt%, SiO
2content ﹤ 25wt%; Grain diameter is 20 ~ 40 orders.
Further, the fixation of C content ﹥ 95wt% of described graphite, moisture content ﹤ 0.5wt%.
Further, the fixation of C content ﹥ 99wt% of described carbon black, moisture content ﹤ 0.2wt%.
Further, the Cr of described chrome green
2o
3content ﹥ 99wt%, moisture content ﹤ 0.2wt%.
Raw material of the present invention is mainly chrome ore, extra large sand, quartz sand and high aluminium ball composition; Fusing point, between 1700 ~ 1780 DEG C, has higher refractoriness; During refining, stuffing sand can not excess agglomeration, and the sintered layer of formation is even and thin, sintered layer moderate strength, has good high temperature sintering performance; Add in raw material anti-erosion raw material chrome green and with molten steel nonwetting raw material carbon black graphite, effectively can resist molten steel long-time high temperature and erosion under multiple refining, ensure steel quality and continuous casting safety in production.
The present invention compares with prior art, and its technique effect is actively with obvious.Strong, the anti-molten steel good penetrability of ladle higher-grade chromium matter stuffing sand of the present invention anti-molten steel aggressiveness, high temperature sintering performance are good, particle size distribution even, good fluidity, effectively can improve multiple refining ladle automatic casting ratio.The product of the application of the invention, ladle automatic free-opening rate can reach more than 99%, thus ensures that multiple refining steel steel quality and continuous casting process safe and continuous are produced, and is applicable to the multiple refining of ladle.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, not limiting the scope of the invention:
For avoiding repetition, first by as follows for the raw material Unify legislation in embodiment: the Cr of chrome ore
2o
3content>=45.5wt%, grain diameter is 20 ~ 70 orders; The SiO of sea sand
2content>=98.5wt%, extra large sand grain composition is: 12 ~ 20 object particles are ﹤ 20wt%, and 20 ~ 40 object particles are 50 ~ 70wt%, and being less than 40 object particles is 5 ~ 20wt%; The SiO of quartz sand
2content>=98.5wt%, quartz sand particle grating is: 6 ~ 20 object particles are 30 ~ 50wt%, and 20 ~ 40 object particles are 40 ~ 60wt%, and being less than 40 object particles is ﹤ 10wt%; The Al of high aluminium ball
2o
3content ﹥ 70wt%, SiO
2content ﹤ 25wt%, grain diameter is 20 ~ 40 orders; The fixation of C content > 95wt% of graphite, moisture content < 0.5wt%; The fixation of C content ﹥ of carbon black
99wt%, moisture content ﹤ 0.2wt%; The Cr of chrome green
2o
3content ﹥ 99wt%, moisture content ﹤ 0.2wt%.Repeat no more in embodiment.
Embodiment 1
A kind of ladle higher-grade chromium matter stuffing sand: adopt 68 ~ 80wt% chrome ore, 10 ~ 20wt% sea sand, 0 ~ 5wt% quartz sand, 5 ~ 10wt% high aluminium ball, 0 ~ 0.5% chrome green 0.1 ~ 1.5wt% graphite and 0.1 ~ 0.8wt% carbon black to mix together.
Low cost ladle draining sand prepared by the present embodiment, statistics stove number is 1058 stoves; Opening and watering stove number is 10564 stoves; Automatic casting ratio is 99.8%.
Embodiment 2
A kind of ladle higher-grade chromium matter stuffing sand: adopt 75 ~ 85wt% chrome ore, 5 ~ 10wt% sea sand, 5 ~ 10wt% quartz sand, 3 ~ 8wt% high aluminium ball, 0.3 ~ 0.8% chrome green, 0.6 ~ 2.0wt% graphite and 0.2 ~ 0.8wt% carbon black to mix together.
Ladle higher-grade chromium matter stuffing sand prepared by the present embodiment, statistics stove number is 1096 stoves; Opening and watering stove number is 1093 stoves; Automatic casting ratio is 99.7%.
Embodiment 3
A kind of ladle higher-grade chromium matter stuffing sand: adopt 85 ~ 94wt% chrome ore, 2 ~ 10wt% sea sand, 1 ~ 5wt% quartz sand, 1 ~ 5wt% high aluminium ball, 0.1 ~ 0.6% chrome green, 0.5 ~ 1.0wt% graphite and 0.1 ~ 0.5wt% carbon black to mix together.
Ladle higher-grade chromium matter stuffing sand prepared by the present embodiment, statistics stove number is 995 stoves; Opening and watering stove number is 993 stoves; Automatic casting ratio is 99.6%.
Claims (10)
1. a ladle higher-grade chromium matter stuffing sand, is characterized in that, is made up of the material of following weight percents:
Chrome ore 68 ~ 94wt%;
Sea sand 5 ~ 30wt%;
Quartz sand 0 ~ 15wt%;
High aluminium ball 1 ~ 12wt%;
Graphite 0 ~ 2.5wt%;
Carbon black 0.1 ~ 1wt%;
Chrome green 0 ~ 1%.
2. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that, be made up of the material of following weight percents:
Chrome ore 68 ~ 80wt%;
Sea sand 10 ~ 20wt%;
Quartz sand 0 ~ 5wt%;
High aluminium ball 5 ~ 10wt%;
Chrome green 0 ~ 0.5%;
Graphite 0.1 ~ 1.5wt%;
Carbon black 0.1 ~ 0.8wt%.
3. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that, be made up of the material of following weight percents:
Chrome ore 75 ~ 85wt%;
Sea sand 5 ~ 10wt%;
Quartz sand 5 ~ 10wt%;
High aluminium ball 3 ~ 8wt%;
Chrome green 0.3 ~ 0.8%;
Graphite 0.6 ~ 2.0wt%;
Carbon black 0.2 ~ 0.8wt%.
4. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that, be made up of the material of following weight percents:
Chrome ore 85 ~ 94wt%;
Sea sand 2 ~ 10wt%;
Quartz sand 1 ~ 5wt%;
High aluminium ball 1 ~ 5wt%;
Chrome green 0.1 ~ 0.6%;
Graphite 0.5 ~ 1.0wt%;
Carbon black 0.1 ~ 0.5wt%.
5. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that: the SiO of described extra large sand
2content>=98.5wt%; Sea sand grain composition is: 12 ~ 20 object particles are ﹤ 20wt%, and 20 ~ 40 object particles are 50 ~ 70wt%, and being less than 40 object particles is 5 ~ 20wt%.
6. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that: the SiO of described quartz sand
2content>=99.0wt%; Quartz sand particle grating is: 6 ~ 20 object particles are 30 ~ 50wt%, and 20 ~ 40 object particles are 40 ~ 60wt%, and being less than 40 object particles is ﹤ 10wt%.
7. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that: the Al of described high aluminium ball
2o
3content ﹥ 70wt%, SiO
2content ﹤ 25wt%; Grain diameter is 20 ~ 40 orders.
8. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that: the fixation of C content ﹥ 95wt% of described graphite, moisture content ﹤ 0.5wt%.
9. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that: the fixation of C content ﹥ 99wt% of described carbon black, moisture content ﹤ 0.2wt%.
10. a kind of ladle higher-grade chromium matter stuffing sand according to claim 1, is characterized in that: the Cr of described chrome green
2o
3content ﹥ 99wt%, moisture content ﹤ 0.2wt%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014796.7A CN105541358B (en) | 2015-12-31 | 2015-12-31 | A kind of ladle high-grade chromium matter stuffing sand |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511014796.7A CN105541358B (en) | 2015-12-31 | 2015-12-31 | A kind of ladle high-grade chromium matter stuffing sand |
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| CN105541358B CN105541358B (en) | 2018-03-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747033A (en) * | 2016-12-28 | 2017-05-31 | 河南建菱建材有限公司 | A kind of chromium sand water-permeable brick |
| CN106881458A (en) * | 2017-03-23 | 2017-06-23 | 张国令 | A kind of refining ladle flow diverter and preparation method thereof |
| CN108101560A (en) * | 2017-12-29 | 2018-06-01 | 河南通宇冶材集团有限公司 | A kind of preparation method of particle drainage agent |
| CN109249013A (en) * | 2018-09-11 | 2019-01-22 | 浙江自立高温科技有限公司 | A kind of stuffing sand interstitital texture and plus sand technique for refining ladle |
| CN112898033A (en) * | 2021-03-25 | 2021-06-04 | 上海荣源冶金材料有限公司 | Zirconium-chromium drainage sand |
| CN116041078A (en) * | 2023-02-08 | 2023-05-02 | 鞍山市和丰耐火材料有限公司 | Ladle drainage agent with high automatic casting rate and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106747033A (en) * | 2016-12-28 | 2017-05-31 | 河南建菱建材有限公司 | A kind of chromium sand water-permeable brick |
| CN106881458A (en) * | 2017-03-23 | 2017-06-23 | 张国令 | A kind of refining ladle flow diverter and preparation method thereof |
| CN108101560A (en) * | 2017-12-29 | 2018-06-01 | 河南通宇冶材集团有限公司 | A kind of preparation method of particle drainage agent |
| CN109249013A (en) * | 2018-09-11 | 2019-01-22 | 浙江自立高温科技有限公司 | A kind of stuffing sand interstitital texture and plus sand technique for refining ladle |
| CN112898033A (en) * | 2021-03-25 | 2021-06-04 | 上海荣源冶金材料有限公司 | Zirconium-chromium drainage sand |
| CN112898033B (en) * | 2021-03-25 | 2022-10-25 | 上海荣源冶金材料有限公司 | Zirconium-chromium drainage sand |
| CN116041078A (en) * | 2023-02-08 | 2023-05-02 | 鞍山市和丰耐火材料有限公司 | Ladle drainage agent with high automatic casting rate and preparation method thereof |
| CN116041078B (en) * | 2023-02-08 | 2024-02-13 | 鞍山市和丰耐火材料有限公司 | Ladle drainage agent with high automatic casting rate and preparation method thereof |
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