CN109265149A - A kind of resistance to flaking magnesium aluminum spinel pouring material - Google Patents
A kind of resistance to flaking magnesium aluminum spinel pouring material Download PDFInfo
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- CN109265149A CN109265149A CN201811181384.6A CN201811181384A CN109265149A CN 109265149 A CN109265149 A CN 109265149A CN 201811181384 A CN201811181384 A CN 201811181384A CN 109265149 A CN109265149 A CN 109265149A
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- 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
- B22D41/02—Linings
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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
- C04B35/01—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
- C04B35/10—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 aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
- C04B35/103—Refractories from grain sized mixtures containing non-oxide refractory materials, e.g. carbon
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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
- C04B35/01—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
- C04B35/44—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 aluminates
- C04B35/443—Magnesium aluminate spinel
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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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- 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
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
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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
- 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
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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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)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The present invention provides a kind of resistance to flaking magnesium aluminum spinel pouring material, component matches as follows in parts by weight: 3mm < partial size≤20-30 parts of 5mm plate diamond spar, 1mm < partial size≤10-20 parts of 3mm plate diamond spar, 10-20 parts of 200 mesh plate diamond spar, 1mm < partial size≤10-20 parts of 3mm electric smelting spinelle, 3mm < partial size≤10-20 parts of 5mm electric smelting spinelle, 200 10-15 parts of mesh electric smelting spinelles, 2-10 parts of 200 mesh Active αAl2O3 micro powder, 1-3 parts of titanium carbide, 1-10 parts of pure calcium aluminate cement.The beneficial effects of the present invention are: the calcium hexaluminate in the castable is to be introduced into corundum-spinel castable in a manner of generated in-situ and (introduce calcium hexaluminate by in-situ preparation when pure calcium aluminate cement and Active αAl2O3 micro powder high-temperature calcination), the performances such as elevated temperature strength, expansion rate are obviously improved, applying in pouring materialfor steel ladle can reduce containment wall thermal loss, resistance to flaking improves, the purpose that can be realized and improve ladle service life, reduce steel product cost and purifying of steel.
Description
Technical field
The present invention relates to a kind of resistance to flaking magnesium aluminum spinel pouring materials.
Background technique
Ladle bottom is one of the position of ladle damage most serious.In recent years, many steel mills are to realize that ladle makes both at home and abroad
With the stabilisation in service life, the Labor-saving and reduction refractory consumption rate of ladle construction have used corundum-spinel in bottom of steel ladle
Castable.Damage in view of packet bottom is mainly structure spalling, and for refining ladle packet bottom magnesia spinel matter castable, spy is proposed
Research and develop a kind of resistance to flaking magnesium aluminum spinel pouring material.
Summary of the invention
A kind of calcium hexaluminate the purpose of the present invention is to provide resistance to flaking magnesium aluminum spinel pouring material, in the castable
It is to be introduced into corundum-spinel castable in a manner of generated in-situ, the performances such as elevated temperature strength, expansion rate are obviously improved,
Using can reduce containment wall thermal loss in pouring materialfor steel ladle, resistance to flaking is improved, and be can be realized and is improved ladle service life, drop
The purpose of low steel product cost and purifying of steel.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of resistance to flaking magnesium aluminum spinel pouring material, component match as follows in parts by weight: 3mm < partial size≤5mm plate
20-30 parts of shape corundum, 1mm < partial size≤10-20 parts of 3mm plate diamond spar, 10-20 parts of 200 mesh plate diamond spar, 1mm < partial size≤
10-20 parts of 3mm electric smelting spinelle, 3mm < partial size≤10-20 parts of 5mm electric smelting spinelle, 200 10-15 parts of mesh electric smelting spinelles,
200 mesh active alpha-Al2O32-10 parts of micro mist, 1-3 parts of titanium carbide, 1-10 parts of pure calcium aluminate cement.
Compared with prior art, the beneficial effects of the present invention are:
A kind of resistance to flaking magnesium aluminum spinel pouring material, the calcium hexaluminate in the castable is drawn in a manner of generated in-situ
Enter into corundum-spinel castable (by pure calcium aluminate cement and active alpha-Al2O3In-situ preparation draws when micro mist high-temperature calcination
Enter calcium hexaluminate), the performances such as elevated temperature strength, expansion rate are obviously improved, and applying in pouring materialfor steel ladle can reduce containment wall heat
Loss, resistance to flaking improve, the purpose that can be realized and improve ladle service life, reduce steel product cost and purifying of steel.
Specific embodiment
Specific embodiments of the present invention will be further explained below:
A kind of resistance to flaking magnesium aluminum spinel pouring material, component match as follows in parts by weight: 3mm < partial size≤5mm plate
20-30 parts of shape corundum, 1mm < partial size≤10-20 parts of 3mm plate diamond spar, 10-20 parts of 200 mesh plate diamond spar, 1mm < partial size≤
10-20 parts of 3mm electric smelting spinelle, 3mm < partial size≤10-20 parts of 5mm electric smelting spinelle, 200 10-15 parts of mesh electric smelting spinelles,
200 mesh active alpha-Al2O32-10 parts of micro mist, 1-3 parts of titanium carbide, 1-10 parts of pure calcium aluminate cement.
The above feedstock specifications are shown in Table 1.
Table 1: resistance to flaking magnesium aluminum spinel pouring material composition of raw materials index
A kind of production method of resistance to flaking magnesium aluminum spinel pouring material provided by the present invention, the specific steps of which are as follows:
(1) raw material crushes and screens fine grinding:
Plate diamond spar, capacitor spinelle are broken into bulky grain with jaw crusher respectively, then use kibbler roll respectively
Its bulky grain is ground into the little particle that partial size is 0~5mm；Selected part little particle is finely ground into partial size with ball mill and is respectively
The micro mist of 200 mesh；The plate diamond spar of selection, capacitor spinelle little particle are sieved by partial size difference respectively, obtain 200
Mesh, 1-3mm, 3-5mm three kinds of partial sizes plate diamond spar and capacitor spinelle.
(2) ingredient:
Raw material is weighed by above-mentioned formula:
(3) it stirs:
First particulate material is uniformly mixed when mixing, is done time only not less than 12min, pre- mixed fine powder is added and continues to mix
18min or so discharging.
Embodiment is shown in Table 2:
Table 2: Example formulations
Pure calcium aluminate cement uses secar71 cement in embodiment, checks performance indicator by quality inspection staff after molding,
It is shown in Table 2.
Table 2: product performance index
Claims (1)
1. a kind of resistance to flaking magnesium aluminum spinel pouring material, which is characterized in that component matches as follows in parts by weight: 3mm <
Diameter≤20-30 parts of 5mm plate diamond spar, 1mm < partial size≤10-20 parts of 3mm plate diamond spar, 10-20 parts of 200 mesh plate diamond spar, 1mm
< partial size≤10-20 parts of 3mm electric smelting spinelle, 3mm < partial size≤10-20 parts of 5mm electric smelting spinelle, 200 mesh electric smelting spinelles
10-15 parts, 200 mesh active alpha-Al2O32-10 parts of micro mist, 1-3 parts of titanium carbide, 1-10 parts of pure calcium aluminate cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181384.6A CN109265149A (en) | 2018-10-11 | 2018-10-11 | A kind of resistance to flaking magnesium aluminum spinel pouring material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181384.6A CN109265149A (en) | 2018-10-11 | 2018-10-11 | A kind of resistance to flaking magnesium aluminum spinel pouring material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109265149A true CN109265149A (en) | 2019-01-25 |
Family
ID=65196382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811181384.6A Withdrawn CN109265149A (en) | 2018-10-11 | 2018-10-11 | A kind of resistance to flaking magnesium aluminum spinel pouring material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109265149A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187090A (en) * | 2020-03-10 | 2020-05-22 | 北京利尔高温材料股份有限公司 | Spinel micropowder castable for ladle and method for preparing prefabricated part by using castable |
| CN111995409A (en) * | 2020-08-21 | 2020-11-27 | 浙江锦诚新材料股份有限公司 | Medium frequency induction furnace ramming mass based on magnesium aluminate spinel reclaimed materials |
| CN111995417A (en) * | 2020-08-21 | 2020-11-27 | 浙江锦诚新材料股份有限公司 | Magnesium aluminate spinel castable for aluminum melting furnace |
| CN113845353A (en) * | 2020-06-28 | 2021-12-28 | 宝山钢铁股份有限公司 | Transition brick layer for ladle wall of ladle working lining |
-
2018
- 2018-10-11 CN CN201811181384.6A patent/CN109265149A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187090A (en) * | 2020-03-10 | 2020-05-22 | 北京利尔高温材料股份有限公司 | Spinel micropowder castable for ladle and method for preparing prefabricated part by using castable |
| CN113845353A (en) * | 2020-06-28 | 2021-12-28 | 宝山钢铁股份有限公司 | Transition brick layer for ladle wall of ladle working lining |
| CN111995409A (en) * | 2020-08-21 | 2020-11-27 | 浙江锦诚新材料股份有限公司 | Medium frequency induction furnace ramming mass based on magnesium aluminate spinel reclaimed materials |
| CN111995417A (en) * | 2020-08-21 | 2020-11-27 | 浙江锦诚新材料股份有限公司 | Magnesium aluminate spinel castable for aluminum melting furnace |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190125 |
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| WW01 | Invention patent application withdrawn after publication |