CN110229008A - Long-life large ladle furnace corundum castable - Google Patents
Long-life large ladle furnace corundum castable Download PDFInfo
- Publication number
- CN110229008A CN110229008A CN201910603352.9A CN201910603352A CN110229008A CN 110229008 A CN110229008 A CN 110229008A CN 201910603352 A CN201910603352 A CN 201910603352A CN 110229008 A CN110229008 A CN 110229008A
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- Prior art keywords
- long
- corundum castable
- ladle furnace
- castable
- large ladle
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- 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
-
- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides 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
- C04B2235/32—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
- C04B2235/32—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
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
Long-life large ladle furnace corundum castable, by weight percentage, first wife's material includes: Brown Alundum 55%~70%, magnesia 2%~5%, alumina powder 2%~6%, silicon powder 5%~10%, silica solution 5%~10%, KH-570 coagulant 2%~5%, zirconium oxide micro mist 2%~5%, chrome oxide green 2%~5%；The present invention has the features such as good thermal shock stability, high temperature break resistant intensity is high, long service life.
Description
Technical field
The present invention relates to castable technical fields, and in particular to long-life large ladle furnace corundum castable.
Background technique
Ladle accepts molten steel for steel mill, Foundry Works before open hearth, electric furnace or converter, carries out pouring practice, due to rigid
The temperature of internal the accepted molten steel of packet usually reaches more than 1000 degrees Celsius of high temperature, and ladle liner is often made of castable refractory
Flame retardant coating；Using corundum as castable refractory prepared by aggregate and the additional some bonding agents of powder, has and poured than high-alumina refractory
Material feeding and the performances such as the higher mechanical strength of mullite flame-proof castable and anti scuffing, but thermal shock resistance is more slightly worse, therefore needs
Optimize a kind of long-life large ladle furnace corundum castable.
Summary of the invention
A kind of good thermal shock stability, high temperature break resistant intensity are provided the purpose of the present invention is overcome the deficiencies in the prior art
Height, long-life large ladle furnace corundum castable with long service life.
Technical solution of the present invention is under:
Long-life large ladle furnace corundum castable, by weight percentage, first wife's material includes: Brown Alundum 55%~70%,
Magnesia 2%~5%, alumina powder 2%~6%, silicon powder 5%~10%, silica solution 5%~10%, KH-570 coagulant
2%~5%, zirconium oxide micro mist 2%~5%, chrome oxide green 2%~5%.
Further, first wife material includes Brown Alundum 55% by weight percentage, magnesia 5%, alumina powder 6%,
Silicon powder 10%, silica solution 10%, KH-570 coagulant 5%, zirconium oxide micro mist 4%, chrome oxide green 5%, inventor are logical
Many experiments discovery is crossed, the castable made of the first wife of said ratio material has preferable high-temperature physical property, and ladle is used
The service life of corundum castable is longer.
The beneficial effects of the present invention are: the microstructure of Brown Alundum sample is comparatively dense, Brown Alundum is aggregate, elevated temperature strength
Preferably, in order to which the proportion for improving the integral strength Brown Alundum of ladle corundum castable is 55%~70%；Weight percent is added
Than the magnesia for 2%~5%, it is therefore an objective to improve anti-slag of the ladle corundum castable under 1200~1300 DEG C of working environment
Property, the performance of flexural strength and excellent spinelle；It is to improve the normal of ladle corundum castable that alumina powder, which is added,
Warm intensity, high temperature break resistant intensity and thermal shock resistance and resistance to slag, when alumina powder content is 2%~6% in particle, respectively
Kind performance indicator improvement is most obvious, and 6% is optimum oxidation aluminium micro mist additional amount；It is to improve ladle with corundum and pour that silicon powder, which is added,
The physical property of material feeding, each physical property is preferable when silicon powder accounting is 5%~10%；Silica solution is used as ladle and is poured with corundum
The binder of material feeding has the characteristics that cohesive force is strong, high temperature resistant (1500~1600 DEG C)；The KH- that accounting is 2%~5% is added
570 are used as coagulant that can both guarantee that ladle corundum castable had good workability, and can significantly improve its early stage
Intensity；Be added proportion for 2%~5% zirconium oxide micro mist be in order to improve the high temperature break resistant intensity of ladle corundum castable and
Thermal shock resistance；It is to improve the flexural strength of ladle corundum castable, normal that proportion is added, which be 2%~5% chrome oxide green,
The performances such as warm compressive resistance, high temperature break resistant intensity, thermal shock resistance；The present invention has good thermal shock stability, high temperature break resistant intensity
The features such as height, long service life.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Long-life large ladle furnace corundum castable, by weight percentage, first wife's material includes: Brown Alundum 55%~70%,
Magnesia 2%~5%, alumina powder 2%~6%, silicon powder 5%~10%, silica solution 5%~10%, KH-570 coagulant
2%~5%, zirconium oxide micro mist 2%~5%, chrome oxide green 2%~5%.
Embodiment 1, first wife's material are the Brown Alundum 55% of 3~6mm including partial size, partial size is by weight percentage
0.01~0.038mm magnesia 5%, alumina powder 6% of the partial size for 0.01~0.026mm, silicon powder 10%, silica solution 10%,
KH-570 coagulant 5%, zirconium oxide micro mist 4%, chrome oxide green 5%.
Embodiment 2, first wife's material are the Brown Alundum 70% of 3~6mm including partial size, partial size is by weight percentage
0.01~0.038mm magnesia 2%, alumina powder 2% of the partial size for 0.01~0.026mm, silicon powder 10%, silica solution 10%,
KH-570 coagulant 2%, zirconium oxide micro mist 2%, chrome oxide green 2%.
Embodiment 3, first wife's material are the Brown Alundum 60% of 3~6mm including partial size, partial size is by weight percentage
0.01~0.038mm magnesia 2%, alumina powder 6% of the partial size for 0.01~0.026mm, silicon powder 10%, silica solution 10%,
KH-570 coagulant 2%, zirconium oxide micro mist 5%, chrome oxide green 5%.
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement, all within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (2)
1. long-life large ladle furnace corundum castable, by weight percentage, which is characterized in that first wife's material includes: Brown Alundum
55%~70%, magnesia 2%~5%, alumina powder 2%~6%, silicon powder 5%~10%, silica solution 5%~10%, KH-
570 coagulant 2%~5%, zirconium oxide micro mist 2%~5%, chrome oxide green 2%~5%.
2. long-life large ladle furnace corundum castable according to claim 1, it is characterised in that: first wife's material is by weight
Measuring percentage includes Brown Alundum 55%, magnesia 5%, alumina powder 6%, silicon powder 10%, silica solution 10%, KH-570 coagulant
5%, zirconium oxide micro mist 4%, chrome oxide green 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603352.9A CN110229008A (en) | 2019-07-05 | 2019-07-05 | Long-life large ladle furnace corundum castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603352.9A CN110229008A (en) | 2019-07-05 | 2019-07-05 | Long-life large ladle furnace corundum castable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110229008A true CN110229008A (en) | 2019-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910603352.9A Pending CN110229008A (en) | 2019-07-05 | 2019-07-05 | Long-life large ladle furnace corundum castable |
Country Status (1)
| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116217248A (en) * | 2022-12-02 | 2023-06-06 | 河钢乐亭钢铁有限公司 | Low-cost long-life slag blocking wall with hit package and preparation method thereof |
Citations (5)
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|---|---|---|---|---|
| CN101830717A (en) * | 2010-05-11 | 2010-09-15 | 浙江大学 | Zirconium sol reinforced corundum-mullite product and production method thereof |
| CN101935221A (en) * | 2010-08-24 | 2011-01-05 | 中钢集团洛阳耐火材料研究院有限公司 | Low apparent porosity corundum refractory castable |
| CN103204685A (en) * | 2013-03-11 | 2013-07-17 | 湖北省电力勘测设计院 | Abrasion-resistant and fire-resistant repairing material for membrane type water walls |
| CN103382116A (en) * | 2013-07-12 | 2013-11-06 | 巩义市科恒耐火材料有限公司 | Zirconium-containing high-strength wear-resistant castable |
| CN105218113A (en) * | 2015-09-25 | 2016-01-06 | 武汉科技大学 | A kind of silicasol-combined corundum matter mould material and preparation method thereof |
-
2019
- 2019-07-05 CN CN201910603352.9A patent/CN110229008A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830717A (en) * | 2010-05-11 | 2010-09-15 | 浙江大学 | Zirconium sol reinforced corundum-mullite product and production method thereof |
| CN101935221A (en) * | 2010-08-24 | 2011-01-05 | 中钢集团洛阳耐火材料研究院有限公司 | Low apparent porosity corundum refractory castable |
| CN103204685A (en) * | 2013-03-11 | 2013-07-17 | 湖北省电力勘测设计院 | Abrasion-resistant and fire-resistant repairing material for membrane type water walls |
| CN103382116A (en) * | 2013-07-12 | 2013-11-06 | 巩义市科恒耐火材料有限公司 | Zirconium-containing high-strength wear-resistant castable |
| CN105218113A (en) * | 2015-09-25 | 2016-01-06 | 武汉科技大学 | A kind of silicasol-combined corundum matter mould material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 王晓婷等: "钢包工作衬用刚玉质无碳预制块砖的研制", 《辽宁科技学院学报》 * |
| 肖盛: "细粉含量对高纯刚玉质耐火浇注料性能的影响", 《现代冶金》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116217248A (en) * | 2022-12-02 | 2023-06-06 | 河钢乐亭钢铁有限公司 | Low-cost long-life slag blocking wall with hit package and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190913 |