CN113845353A - Transition brick layer for ladle wall of ladle working lining - Google Patents
Transition brick layer for ladle wall of ladle working lining Download PDFInfo
- Publication number
- CN113845353A CN113845353A CN202010597032.XA CN202010597032A CN113845353A CN 113845353 A CN113845353 A CN 113845353A CN 202010597032 A CN202010597032 A CN 202010597032A CN 113845353 A CN113845353 A CN 113845353A
- Authority
- CN
- China
- Prior art keywords
- ladle
- layer
- brick layer
- working
- line part
- 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
- 239000011449 brick Substances 0.000 title claims abstract description 55
- 230000007704 transition Effects 0.000 title claims abstract description 39
- 239000002893 slag Substances 0.000 claims abstract description 33
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 21
- 239000010431 corundum Substances 0.000 claims abstract description 21
- 229910052596 spinel Inorganic materials 0.000 claims abstract description 17
- 239000011029 spinel Substances 0.000 claims abstract description 17
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 25
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 21
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 29
- 239000010959 steel Substances 0.000 abstract description 29
- 230000008595 infiltration Effects 0.000 abstract description 5
- 238000001764 infiltration Methods 0.000 abstract description 5
- 239000011819 refractory material Substances 0.000 description 7
- 238000003723 Smelting Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Images
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
- C04B35/01—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
-
- 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
-
- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- 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)
-
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- 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
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
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)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention relates to a transition brick layer for a ladle wall of a ladle working lining, wherein the ladle wall sequentially comprises a slag line part (1) and a working layer (2) from top to bottom, the slag line part is made of a magnesia carbon brick material, and the working layer is made of a corundum spinel material; the transition brick layer (3) is laid between the slag line part (1) and the working layer (2), and the transition brick layer (3) is Al2O3-MgO-CaO material, the chemical composition of which is as follows by weight percentage: al (Al)2O3: 88.0 to 93.0%, MgO: 5.0-9.0%, CaO: 1.5-3.0 percent, and the balance of trace impurities. The invention can effectively control the expansion of the brick joint between the slag line part and the working layer, reduce the infiltration of molten steel and prolong the service life of the ladle.
Description
Technical Field
The invention relates to a ladle working lining, in particular to a transition brick layer for a ladle wall of the ladle working lining.
Background
The steel ladle plays an increasingly important role in steel making production, and along with the smelting of various types of steel, various refinements such as RH, LF, CAS and the like are required to be carried out in the steel ladle, so the steel ladle is an important high-temperature container for external refining. In some steel (such as IF steel), the tapping temperature of a converter is high, and a ladle needs to bear high temperature for a long time. In addition, in order to meet the requirement of pure steel smelting, the pollution of the refractory material used by the ladle to the molten steel needs to be reduced as much as possible.
The steel ladle generally comprises a steel shell and a lining body made of refractory materials, wherein the lining body is arranged in the steel shell, the lining body sequentially comprises a heat insulation lining, a permanent lining and a working lining from outside to inside, and the working lining is in direct contact with high-temperature molten steel and molten slag, so that the importance of the steel ladle is more remarkable. Generally speaking, the working lining comprises a ladle wall and a ladle bottom, wherein the ladle wall is provided with a slag line part and a working layer from top to bottom in sequence. At present, most slag line parts of large-scale steel ladles adopt magnesia carbon bricks, and meanwhile, in order to meet the requirement of pure steel smelting, a working layer adopts a carbon-free refractory material which is mostly high-grade corundum spinel precast blocks or integral castable or carbon-free aluminum-magnesium unburned bricks. In the use, the ladle lining body takes place expansion and shrink because of the temperature rises and falls repeatedly, and slag line portion and working layer lead to the expansion shrinkage inconsistent because of refractory material difference for the brickwork joint grow of both linking positions, and the molten steel is easy from the infiltration of brickwork joint, and direct influence ladle safety in utilization. For example, on the wall of the conventional ladle working lining, magnesia carbon bricks are built in the slag line part, corundum spinel precast blocks below the slag line part are used as working layers, and the thermal expansion coefficient of the magnesia carbon bricks is (11.0-11.5) × 10-6/° C, and the thermal expansion coefficient of corundum spinel (8.2-8.5) × 10-6The temperature/DEG C is higher in difference of thermal expansion coefficients, so that expansion and contraction are inconsistent in the use process of long-term cold and hot change, a brick joint at the joint position of a slag line part and a working lining is increased, molten steel is easy to infiltrate, a steel ladle is required to be taken off line in advance under the condition of serious steel infiltration, and the service life of the steel ladle is shortened.
Disclosure of Invention
The invention aims to provide a transition brick layer for a ladle wall of a ladle working lining, which is built between a slag line part and a working layer of the ladle wall, the thermal expansion coefficient of the transition brick layer is between the slag line part and the working layer, and the inconsistent expansion and contraction degree of the ladle wall is reduced, so that the expansion of brick joints is controlled, and the infiltration of molten steel is reduced.
The invention is realized by the following steps:
a transition brick layer for a ladle wall of a ladle working lining is characterized in that the ladle wall sequentially comprises a slag line part and a working layer from top to bottom, the slag line part is made of magnesia carbon brick material, and the working layer is made of corundum spinel material;
the transition brick layer is built between the slag line part and the working layer and is Al2O3-MgO-CaO material, the chemical composition of which is as follows by weight percentage: al (Al)2O3: 88.0 to 93.0%, MgO: 5.0-9.0%, CaO: 1.5-3.0 percent, and the balance of trace impurities.
The thermal expansion coefficient of the transition brick layer is (9.5-10.0) multiplied by 10-6/℃。
The transition brick layer comprises corundum, spinel, pure calcium aluminate cement and alumina powder, wherein the mixing ratio of the pure calcium aluminate cement to the alumina powder is as follows: 1 part of pure calcium aluminate cement corresponds to 2-3 parts of alumina powder.
The alumina powder comprises corundum fine powder and alumina superfine powder. .
The transition brick layer is built between the slag line part and the working layer of the original ladle wall, the slag line part is a magnesia carbon brick with a larger thermal expansion coefficient, the working layer is a corundum spinel precast block with a smaller thermal expansion coefficient, and the thermal expansion coefficient of the added transition brick layer is between the slag line part and the working layer, so that the difference of the thermal expansion coefficient values between the adjacent slag line part and the transition brick layer and between the transition brick layer and the working layer is smaller, the inconsistent degree of expansion and contraction among different refractory materials of the ladle wall is reduced, the brick joints of the joint parts are controlled, and the service life of the ladle is prolonged. Meanwhile, the transition brick layer is made of corundum (Al)2O3) Spinel (Al)2O3MgO) as main material, adding certain proportion of pure calcium aluminate cement (CaO) and alumina powder (Al)2O3) And the calcium hexaluminate is formed by reaction at high temperature, and the generated thermal expansion is controllable, so that the thermal expansion coefficient of the corundum spinel is improved to a certain extent, and simultaneously, the excessive introduction of other impurities into the refractory material of the ladle wall is avoided, and the requirement of pure steel smelting is met.
Compared with the prior art, the invention has the following beneficial effects: the expansion of a brick joint between the slag line part and the working layer can be effectively controlled, the infiltration of molten steel is reduced, and the service life of the steel ladle is prolonged.
Drawings
FIG. 1 is a schematic structural view of a ladle with a transition brick layer for a wall of the ladle working lining according to the present invention;
in the figure, 1 slag line part, 2 working linings, 3 transition brick layers, 4 steel shells, 5 heat insulation linings, 6 permanent linings and 7 ladle bottoms.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
Referring to fig. 1, the transition brick layer for the ladle wall of the ladle working lining comprises a steel shell 4 and a lining body made of refractory materials, wherein the lining body is arranged in the steel shell 4, the lining body sequentially comprises a heat insulation lining 5, a permanent lining 6 and the working lining from outside to inside, the working lining comprises a ladle wall and a ladle bottom 7, and the ladle wall sequentially comprises a slag line part 1, a transition brick layer 3 and a working layer 2 from top to bottom.
The slag line part 1 is made of magnesia carbon brick material, and the thermal expansion coefficient is (11.0-11.5) multiplied by 10-6V. C. The working layer 2 adopts a corundum spinel precast block, and the thermal expansion coefficient of the corundum spinel precast block is (8.2-8.5) multiplied by 10-6/℃。
A transition brick layer 3 is built between the slag line part 1 and the working layer 2, and the transition brick layer 3 is Al2O3-MgO-CaO material, the chemical composition of which is as follows by weight percentage: al (Al)2O3: 88.0 to 93.0%, MgO: 5.0-9.0%, CaO: 1.5-3.0 percent, and the balance of trace impurities. The transition brick layer 3 comprises corundum (Al) as raw material2O3) Spinel (Al)2O3MgO), and adding pure calcium aluminate cement (CaO) and alumina powder (Al)2O3) Obtaining a precast block as a casting material, wherein the raw material mixing ratio of the pure calcium aluminate cement to the alumina powder is as follows: 1 part of pure calcium aluminate cement corresponds to 2-3 parts of alumina powder. The alumina powder comprises corundum fine powder and alumina superfine powder, the granularity of the corundum fine powder is less than 0.088mm, the granularity of the alumina superfine powder is 1-5 mu m, and the alumina superfine powder can haveEffectively improve the fluidity of the casting material.
By adjusting the mixing ratio of the pure calcium aluminate cement and the alumina powder, the calcium hexaluminate with certain content is formed by reaction at high temperature to generate thermal expansion, so that the thermal expansion coefficient of the prefabricated block for the transition brick layer is improved to (9.5-10.0) multiplied by 10-6and/DEG C, and is between the thermal expansion coefficients of the magnesia carbon brick material of the slag line part and the corundum spinel material of the working layer. In contrast, the method of adding MgO to corundum spinel to raise the thermal expansion coefficient has high heat expansion and is not easy to control, and the added pure calcium aluminate cement and alumina powder can control the heat expansion well.
Table 1 lists the raw material ratios and the weight percentages (wt%) of the main chemical components of the transition brick layers of examples 1-3, and the seam variation results of the examples are shown as follows:
as can be seen from table 1, in examples 1 to 3, the transition brick layer is added between the slag line portion and the working layer, and the transition brick layer is obtained from corundum, spinel, pure calcium aluminate cement, and alumina powder, so that the thermal expansion coefficient of the transition brick layer is between that of the slag line portion and the working layer, and the expansion of the brick joint can be well controlled.
The transition brick layer for the ladle wall of the ladle working lining is arranged between the ladle wall slag line part and the working layer, so that a transition area is added between the ladle wall slag line part and the working layer, the difference of thermal expansion coefficients is reduced, the inconsistent degree of expansion and contraction is reduced, the expansion of brick joints can be effectively controlled, and molten steel is prevented from permeating.
The present invention is not limited to the above embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A transition brick layer for a ladle wall of a ladle working lining is characterized in that the ladle wall sequentially comprises a slag line part (1) and a working layer (2) from top to bottom, the slag line part (1) is made of magnesia carbon brick material, and the working layer (2) is made of corundum spinel material; the method is characterized in that:
the transition brick layer (3) is laid between the slag line part (1) and the working layer (2), and the transition brick layer (3) is Al2O3-MgO-CaO material, the chemical composition of which is as follows by weight percentage: al (Al)2O3: 88.0 to 93.0%, MgO: 5.0-9.0%, CaO: 1.5-3.0 percent, and the balance of trace impurities.
2. The transition brick layer for a ladle working lining wall according to claim 1, characterized in that: the thermal expansion coefficient of the transition brick layer (3) is (9.5-10.0) multiplied by 10-6/℃。
3. The transition brick layer for a ladle working lining wall according to claim 1, characterized in that: the transition brick layer (3) comprises corundum, spinel, pure calcium aluminate cement and alumina powder, wherein the mixing ratio of the pure calcium aluminate cement to the alumina powder is as follows: 1 part of pure calcium aluminate cement corresponds to 2-3 parts of alumina powder.
4. The transition brick layer for a ladle working lining wall according to claim 3, characterized in that: the alumina powder comprises corundum fine powder and alumina superfine powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010597032.XA CN113845353A (en) | 2020-06-28 | 2020-06-28 | Transition brick layer for ladle wall of ladle working lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010597032.XA CN113845353A (en) | 2020-06-28 | 2020-06-28 | Transition brick layer for ladle wall of ladle working lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113845353A true CN113845353A (en) | 2021-12-28 |
Family
ID=78972559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010597032.XA Pending CN113845353A (en) | 2020-06-28 | 2020-06-28 | Transition brick layer for ladle wall of ladle working lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113845353A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749646A (en) * | 2022-04-06 | 2022-07-15 | 邯郸钢铁集团有限责任公司 | Composite steel ladle free of calcium treatment process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450178A (en) * | 1990-06-15 | 1992-02-19 | Kurosaki Refract Co Ltd | Ladle-lining carbon-containing amorphous refractories |
| US5316571A (en) * | 1991-04-16 | 1994-05-31 | Shinagawa Refractories Co., Ltd. | Alumina-spinel type monolithic refractories |
| WO2003095391A1 (en) * | 2001-02-09 | 2003-11-20 | Shinagawa Refractories Co., Ltd. | Monothilic refractory composition |
| CN205996184U (en) * | 2016-09-26 | 2017-03-08 | 武汉威林科技股份有限公司 | A kind of energy-saving ladle of low-material-consumption |
| CN206677166U (en) * | 2017-04-10 | 2017-11-28 | 浙江自立高温科技有限公司 | A kind of improved cast ladle of structure |
| CN109265149A (en) * | 2018-10-11 | 2019-01-25 | 海城利尔麦格西塔材料有限公司 | A kind of resistance to flaking magnesium aluminum spinel pouring material |
-
2020
- 2020-06-28 CN CN202010597032.XA patent/CN113845353A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0450178A (en) * | 1990-06-15 | 1992-02-19 | Kurosaki Refract Co Ltd | Ladle-lining carbon-containing amorphous refractories |
| US5316571A (en) * | 1991-04-16 | 1994-05-31 | Shinagawa Refractories Co., Ltd. | Alumina-spinel type monolithic refractories |
| WO2003095391A1 (en) * | 2001-02-09 | 2003-11-20 | Shinagawa Refractories Co., Ltd. | Monothilic refractory composition |
| CN205996184U (en) * | 2016-09-26 | 2017-03-08 | 武汉威林科技股份有限公司 | A kind of energy-saving ladle of low-material-consumption |
| CN206677166U (en) * | 2017-04-10 | 2017-11-28 | 浙江自立高温科技有限公司 | A kind of improved cast ladle of structure |
| CN109265149A (en) * | 2018-10-11 | 2019-01-25 | 海城利尔麦格西塔材料有限公司 | A kind of resistance to flaking magnesium aluminum spinel pouring material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114749646A (en) * | 2022-04-06 | 2022-07-15 | 邯郸钢铁集团有限责任公司 | Composite steel ladle free of calcium treatment process |
| CN114749646B (en) * | 2022-04-06 | 2023-06-02 | 邯郸钢铁集团有限责任公司 | Composite steel ladle free of calcium treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lee et al. | Evolution of in situ refractories in the 20th century | |
| CN101234905B (en) | Corundum spinel refractory materials for RH lining and manufacturing method thereof | |
| CN101811881A (en) | MgO-C material slag line brick for steel ladle | |
| Garbers-Craig | Presidential address: How cool are refractory materials? | |
| CN113845353A (en) | Transition brick layer for ladle wall of ladle working lining | |
| US5506181A (en) | Refractory for use in casting operations | |
| CN1298465C (en) | Bottom fire-proof material of large steel ladle | |
| Ertuğ | Classification and characteristics of predominant refractories used in metallurgy | |
| CN114262232A (en) | Preparation method of carbon-free castable added with graphite raw material for refining ladle working lining | |
| CN114478031A (en) | Production process of unburned aluminum-magnesia-carbon brick for electric furnace steel ladle | |
| US6908871B2 (en) | Batch composition for producing a refractory ceramic shape body, shaped body produced therefrom and the use thereof | |
| CN111018496A (en) | Carbon-free magnesium dolomite slide plate and preparation method and application thereof | |
| JPS6143305B2 (en) | ||
| CN111644607B (en) | Method for preventing molten steel from recarburizing in ultra-low carbon steel production process | |
| CN117430439B (en) | Composite refractory material for melting furnace top and upper part and preparation method and application thereof | |
| CN113816748B (en) | MgO-CaC for refining furnace 2 -C refractory material and preparation process thereof | |
| Peng et al. | Review of Basic Refractories and Development History of Sinosteel Luonai Basic Refractories. | |
| JP2000302539A (en) | Filling material for masonry joint of brick | |
| US3262794A (en) | Basic fused refractories | |
| JPH0524911A (en) | Graphite-containing mgo-cao based refractories | |
| JPS6232150B2 (en) | ||
| JPH06199575A (en) | Alumina-spinel castable refractory | |
| Davoodi et al. | Hot Corrosion Behavior of Magnesite–Chromite Refractories Used in Reverberatory Furnaces at Sarcheshmeh Copper Complex | |
| JPS5813511B2 (en) | Tuna Direct Bond Rengano Seizou Hohou | |
| JPH03141152A (en) | Carbon-containing unburned refractory brick |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211228 |
|
| RJ01 | Rejection of invention patent application after publication |