CN106145979A - A kind of pouring materialfor steel ladle - Google Patents
A kind of pouring materialfor steel ladle Download PDFInfo
- Publication number
- CN106145979A CN106145979A CN201610646521.3A CN201610646521A CN106145979A CN 106145979 A CN106145979 A CN 106145979A CN 201610646521 A CN201610646521 A CN 201610646521A CN 106145979 A CN106145979 A CN 106145979A
- Authority
- CN
- China
- Prior art keywords
- aluminate
- powder
- steel ladle
- sintered microporous
- ladle
- 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
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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
Abstract
The present invention relates to a kind of pouring materialfor steel ladle, the most each weight percentages of components is: sintered microporous aluminate 12 8mm be 8～20%, sintered microporous aluminate 8 5mm be l1～15%, sintered microporous aluminate 5 3mm be 12～15%, sintered microporous aluminate 3 lmm be 10～15%, sintered microporous aluminate≤1mm be 30～35%, modified calcium magnesite≤1mm0～5%, Cr3C2 powder 1%, pluralgel powder 3～5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal 0.5%, modified pure calcium aluminate cement 3～5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, 2 morpholino b acids 0.05%.The present invention improves the service life of integrated poured ladle, improves more than 30% than routine with the ladle life of type.
Description
The application is the divisional application of Application No. 201510380617.5.
Technical field
The present invention relates to a kind of ladle lining, a kind of ladle liner castable.
Background technology
The refractory material directly contacted with molten steel in ladle is referred to as steel ladle working layer.In prior art, steel ladle working layer is general
Use spinel pouring material, but the properties of ladle liner be general at present, therefore, directly affects the service life of ladle,
How to improve the service life of ladle, the performance improving steel ladle working layer is the most key, therefore the performance of ladle liner castable
Improve and become the key extending ladle service life.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of pouring materialfor steel ladle, can reduce lining material in the ladle with
The extent of reaction of slag, improves the high-temperature behavior of its slag resistance ladle product, anti-scour property, is added significantly to ladle
Thermal shock resistance, improves the combination property of ladle generally, is significantly increased the service life of final ladle.
The technical problem to be solved is to provide a kind of pouring materialfor steel ladle, and using position is ladle and steel contacts
Direct liner, the most each weight percentages of components is: sintered microporous aluminate 12 8mm be 8～20%, sintered microporous aluminum
Spinelle 8 5mm is l1～15%, sintered microporous aluminate 5 3mm is 12～15%, sintered microporous aluminate 3 one
Lmm be 10～15%, sintered microporous aluminate≤1mm be 30～35%, modified calcium magnesite≤1mm0～5%, Cr3C2
Powder 1%, pluralgel powder 3～5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal 0.5%, modified pure calcium aluminate
Cement 3～5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES 0.05%.
The present invention further technology is characterized in that described pluralgel powder is the compound of zirconium gel powder and alumina gel powder
Powder, its weight ratio is 1:2.
Described modified calcium magnesite refers to calcium magnesite H2C2O4Carry out dipping and carbonating processes, make film on MgO-CaO clinker be formed
The coating film of hydration-resisting.
Described sintered microporous aluminate is alumina content >=78%, aperture≤5 micron of micropore of remaining silent, micropore of remaining silent
Account for more than the 80% of total pore.
Aluminum content >=30% of described nacrite.
Described modified pure calcium aluminate cement be cement production process adds 5% aluminate, 3% zirconium carbonate is again through height
The characteristic cement that temperature sintering manufactures, aluminum content >=75% of modified calcium aluminate cement.
The invention has the beneficial effects as follows:
The present invention can reduce the extent of reaction of lining material in the ladle and slag, improves the high temperatures of its slag resistance ladle product
Energy, anti-scour property, be added significantly to the thermal shock resistance of ladle, be effectively increased the service life of integrated poured ladle,
More than 30% is improved than the conventional ladle life with type.
Detailed description of the invention
Embodiment 1:
A kind of pouring materialfor steel ladle, the direct liner using position to be ladle and steel contacts, the most each weight percentages of components is:
Each weight percentages of components is: sintered microporous aluminate 12 8mm is 15%, sintered microporous aluminate 8 5mm is
14%, sintered microporous aluminate 5 3mm is 15%, and sintered microporous aluminate 3 one lmm is 13%, sintered microporous aluminum point brilliant
Stone≤1mm is 30%, Cr3C2 powder 1%, pluralgel powder 5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid
Bismuth meal 0.5%, modified pure calcium aluminate cement 4.5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES
0.05%.Above-mentioned dispensing mix homogeneously is i.e. obtained pouring materialfor steel ladle.
Experiment test is carried out: additional account for above-mentioned formula proportion weight 3 ~ 6wt%'s with the steel ladle pouring material formula of embodiment 1
Water, test performance index is as follows: bulk density is 2.9/cm3；After 1600 DEG C × 3h burns, rupture strength is 18.8MPa；1600℃
After × 3h burns, compressive resistance is 78MPa；After 1100 DEG C of water-cooleds 10 times, rupture strength conservation rate is 41%；1500 DEG C of revolution crucible methods
Anti-slag experiment erosion index 14%；Penetration index 24%.Basicity CaO/SiO2=2.03 of the slag that experiment uses.More similar than conventional
The ladle life of type improves more than 32%.
Embodiment 2:
A kind of pouring materialfor steel ladle, the most each weight percentages of components is: each weight percentages of components is: sintered microporous aluminate
12 8mm are 14%, sintered microporous aluminate 8 5mm is 15%, sintered microporous aluminate 5 3mm is 15%, sintering
Micropore aluminate 3 one lmm is 12%, sintered microporous aluminate≤1mm is 30%, and modified calcium magnesite≤1mm is 2%, two carbon
Change three chromium powders 1%, pluralgel powder 5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal 0.5%, modified fine aluminium acid
Calcium cement 3.5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES 0.05%.Above-mentioned dispensing is mixed
Close and uniformly i.e. obtain pouring materialfor steel ladle.
Experiment test is carried out: additional account for above-mentioned formula proportion weight 3 ~ 6wt%'s with the steel ladle pouring material formula of embodiment 2
Water, test performance index is as follows: bulk density is 2.9/cm3；After 1600 DEG C × 3h burns, rupture strength is 17MPa；1600℃×
After 3h burns, compressive resistance is 71MPa；After 1100 DEG C of water-cooleds 10 times, rupture strength conservation rate is 54%；1500 DEG C of revolution crucible methods resist
Slag experiment erosion index 11%；Penetration index 19%.Basicity CaO/SiO of the slag that experiment uses2=2.03.Than conventional same type
Ladle life improve more than 35%.
Claims (6)
1. a pouring materialfor steel ladle, it is characterised in that each weight percentages of components is: sintered microporous aluminate 12 8mm is 8
～20%, sintered microporous aluminate 8 5mm be l1～15%, sintered microporous aluminate 5 3mm be 12～15%, sintering
Micropore aluminate 3 one lmm be 10～15%, sintered microporous aluminate≤1mm be 30～35%, modified calcium magnesite≤1mm0
～5%, Cr3C2 powder 1%, pluralgel powder 3～5%, hydrated alumina micropowder 1%, nacrite powder 1%, germanic acid bismuth meal
0.5%, modified pure calcium aluminate cement 3～5%, additional C7H10N2O2S0.1%, C21H14Na2O6S20.1%, MES
0.05%。
2. pouring materialfor steel ladle as claimed in claim 1, it is characterised in that described pluralgel powder is zirconium gel powder and aluminum coagulates
The composite powder of rubber powder, its weight ratio is 1:2.
3. pouring materialfor steel ladle as claimed in claim 1, it is characterised in that described sintered microporous aluminate is alumina content
>=78%, aperture≤5 micron of micropore of remaining silent, micropore of remaining silent accounts for more than the 80% of total pore.
4. pouring materialfor steel ladle as claimed in claim 1, it is characterised in that described modified calcium magnesite refers to calcium magnesite H2C2O4 enters
Row dipping and carbonating process, and make film on MgO-CaO clinker form the coating film of hydration-resisting.
5. pouring materialfor steel ladle as claimed in claim 1, it is characterised in that aluminum content >=30% of described nacrite.
6. pouring materialfor steel ladle as claimed in claim 1, it is characterised in that described modified pure calcium aluminate cement is manufacture of cement mistake
Journey adds the aluminate of 5%, the characteristic cement that 3% zirconium carbonate manufactures through high temperature sintering again, modified calcium aluminate cement
Aluminum content >=75%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646521.3A CN106145979A (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610646521.3A CN106145979A (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
| CN201510380617.5A CN104926335B (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510380617.5A Division CN104926335B (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106145979A true CN106145979A (en) | 2016-11-23 |
Family
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610632221.XA Pending CN106167410A (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
| CN201510380617.5A Active CN104926335B (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
| CN201610646521.3A Pending CN106145979A (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
| CN201610646518.1A Pending CN106145978A (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
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| CN201610632221.XA Pending CN106167410A (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
| CN201510380617.5A Active CN104926335B (en) | 2015-07-02 | 2015-07-02 | A kind of pouring materialfor steel ladle |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107382333A (en) * | 2017-06-28 | 2017-11-24 | 常州莱尚纺织品有限公司 | A kind of preparation method of anti-slag pouring materialfor steel ladle |
| CN107686339A (en) * | 2017-08-29 | 2018-02-13 | 浙江攀盛冶金材料有限公司 | A kind of high magnesia refractories for tundish |
| CN109020569A (en) * | 2018-08-23 | 2018-12-18 | 安徽瑞泰新材料科技有限公司 | A kind of high rigidity castable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101544505A (en) * | 2009-03-20 | 2009-09-30 | 高树森 | Nano Al2O3 and MgO composite ceramic bonded spinel-magnesia fireproof casting material and preparation method thereof |
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2015
- 2015-07-02 CN CN201610632221.XA patent/CN106167410A/en active Pending
- 2015-07-02 CN CN201510380617.5A patent/CN104926335B/en active Active
- 2015-07-02 CN CN201610646521.3A patent/CN106145979A/en active Pending
- 2015-07-02 CN CN201610646518.1A patent/CN106145978A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN106145978A (en) | 2016-11-23 |
| CN104926335A (en) | 2015-09-23 |
| CN104926335B (en) | 2016-11-16 |
| CN106167410A (en) | 2016-11-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |