CN108424156A - A kind of heat insulation and wear resistance castable and preparation method thereof - Google Patents

A kind of heat insulation and wear resistance castable and preparation method thereof Download PDF

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Publication number
CN108424156A
CN108424156A CN201810395015.0A CN201810395015A CN108424156A CN 108424156 A CN108424156 A CN 108424156A CN 201810395015 A CN201810395015 A CN 201810395015A CN 108424156 A CN108424156 A CN 108424156A
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wear resistance
heat insulation
mixture
heat treatment
preparation
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张寒
赵惠忠
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Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
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Wuhan University of Science and Engineering WUSE
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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
    • 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
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • 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
    • C04B2235/3217—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
    • C04B2235/30—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
    • C04B2235/3427—Silicates other than clay, e.g. water glass
    • C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
    • 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
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/522—Oxidic
    • C04B2235/5228—Silica and alumina, including aluminosilicates, e.g. mullite
    • 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
    • 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

Abstract

The present invention relates to a kind of heat insulation and wear resistance castables and preparation method thereof.Its technical solution is：By flyash: gangue: the mass ratio of mullite is (1.5~2.0): (2.0~2.5): 1 dispensing, is stirred to get mixture；Aluminum sol is added into mixture, stirring, molding, mixture after molding is heat-treated under the conditions of 1200~1300 DEG C again, furnace cooling is crushed, ball milling, screening, it is that the heat treatment material C that B and grain size are 60~80 μm is expected in the heat treatment of 0.1~0.5mm to obtain heat treatment material A, grain size that grain size is 1~3mm；Expect A by the heat treatment: B is expected in the heat treatment: C: alumina silicate fibre is expected in the heat treatment: the mass ratio of aluminous cement is (9~12): (3.0~4.0): (5.0~6.0): (0.5~0.8): 1 dispensing, stirring, add water, mixing, stirring is to get heat insulation and wear resistance castable.The present invention has the characteristics that simple for process low with production cost；Prepared heat insulation and wear resistance castable thermal coefficient is low, intensity is high and wearability is good.

Description

A kind of heat insulation and wear resistance castable and preparation method thereof
Technical field
The invention belongs to castable technical fields.More particularly to a kind of heat insulation and wear resistance castable and preparation method thereof.
Background technology
The heat-insulated and wear-resisting property of refractory material is the important leverage of Thermal Equipment stable operation.Fire-resistant material heat insulation performance The good heat utilization rate for being conducive to improve Thermal Equipment, it is energy-saving；Wearability can then extend by force the service life of material.Mesh Before, heat insulation and wear resistance castable is based on High-Alumina and mullite refractory.
Although High-Alumina heat insulation and wear resistance castable intensity is big, wearability is good, its thermal coefficient and coefficient of thermal expansion are larger, On the one hand it is vulnerable to the effect of cyclic thermal stres and thermal spalling damage occurs, another aspect heat preservation and insulation is poor.Mullite Matter heat insulation and wear resistance casting material strength is high, wear-resistant, and thermal coefficient is small, good heat insulating, but mullite is not natural material, needs Artificial synthesized, development cost is higher.
Invention content
The purpose of the present invention is to provide a kind of preparation sides of the heat insulation and wear resistance castable low with production cost simple for process Method.With the heat insulation and wear resistance castable thermal coefficient prepared by this method is low, intensity is high and wearability is good.
To achieve the above object, the step of the technical solution adopted by the present invention is as follows：
The first step presses flyash: gangue: the mass ratio of mullite is (1.5~2.0): (2.0~2.5): 1 dispensing is stirred It mixes 10~15 minutes, obtains mixture.
The Aluminum sol for accounting for the 3~5wt% of mixture is added into the mixture for second step, stirs 3~5 minutes, machine It is molded, obtain molding mixture.
The molding mixture is placed in Muffle furnace by third step, and 30~40 are heat-treated under the conditions of 1200~1300 DEG C Minute, furnace cooling comes out of the stove, and is crushed, ball milling, screening, respectively obtain the heat treatment material A, grain size that grain size is 1~3mm be 0.1~ The heat treatment material C that the heat treatment material B and grain size of 0.5mm is 60~80 μm.
4th step expects A by the heat treatment: B is expected in the heat treatment: C: alumina silicate fibre: calcium aluminate is expected in the heat treatment The mass ratio of cement is (9~12): (3.0~4.0): (5.0~6.0): (0.5~0.8): 1 dispensing, stirs 5~8 minutes, obtains To presoma mixture.
The water for accounting for 5~6wt% of the presoma mixture is added into the presoma mixture for 5th step, and mixing is stirred 3~5 minutes are mixed to get heat insulation and wear resistance castable.
The granularity of the flyash is 60~80 μm；The main chemical compositions of the flyash are：Al2O3For 40~ 45wt%, SiO2For 40~45wt%, Fe2O3≤ 2wt%, CaO≤2wt%.
The granularity of the gangue is 60~80 μm；The main chemical compositions of the gangue are：Al2O3For 35~ 40wt%, SiO2For 40~45wt%, Fe2O3It is 1~2wt% for 1~2wt%, CaO, C is 4~5wt%.
The granularity of the mullite is 60~80 μm；The main chemical compositions of the mullite are：Al2O3For 75~ 80wt%, SiO2For 15~20wt%.
The Al of the Aluminum sol2O3For 20~25wt%.
The length of a diameter of 3~4 μm of the alumina silicate fibre, the alumina silicate fibre is 1~2mm；The alumina silicate The main chemical compositions of fiber are：Al2O3For 55~60wt%, SiO2For 35~40wt%.
The granularity of the aluminous cement is 40~60 μm；The main chemical compositions of the aluminous cement are：Al2O3For 60~65wt%, CaO are 30~35wt%.
Due to the adoption of the above technical scheme, the present invention has the positive effect that compared with prior art：
1, the present invention uses flyash and gangue for primary raw material, realizes recycling for solid waste resource, Significantly reduce the manufacturing cost of heat insulation and wear resistance castable.
2, the present invention is only needed raw material pre-burning, broken rear dispensing, is mixed to obtain the final product, and preparation process is simple.
3, the present invention reduces the thermal coefficient of heat insulation and wear resistance castable, while utilizing silicon by the introducing of alumina silicate fibre Crosslinking curing of the sour aluminum fiber in aluminous cement promotes the intensity and wearability of heat insulation and wear resistance castable.
Heat insulation and wear resistance castable prepared by the present invention is after testing：Thermal coefficient is 1.9~2.4Wm-1·K-1；It is wear-resisting Property experiment wear extent be 4.8~5.3cm3；Cold crushing strength is 45~50MPa.
Therefore, the present invention has the characteristics that simple for process low with production cost；Prepared heat insulation and wear resistance castable heat conduction Coefficient is low, intensity is high and wearability is good.
Specific implementation mode
The invention will be further described With reference to embodiment, not to the limitation of its protection domain：
It is first that the material Unify legislation involved by present embodiment is as follows to avoid repeating, it is no longer superfluous in embodiment It states：
The granularity of the flyash is 60~80 μm；The main chemical compositions of the flyash are：Al2O3For 40~ 45wt%, SiO2For 40~45wt%, Fe2O3≤ 2wt%, CaO≤2wt%.
The granularity of the gangue is 60~80 μm；The main chemical compositions of the gangue are：Al2O3For 35~ 40wt%, SiO2For 40~45wt%, Fe2O3It is 1~2wt% for 1~2wt%, CaO, C is 4~5wt%.
The granularity of the mullite is 60~80 μm；The main chemical compositions of the mullite are：Al2O3For 75~ 80wt%, SiO2For 15~20wt%.
The Al of the Aluminum sol2O3For 20~25wt%.
The length of a diameter of 3~4 μm of the alumina silicate fibre, the alumina silicate fibre is 1~2mm；The alumina silicate The main chemical compositions of fiber are：Al2O3For 55~60wt%, SiO2For 35~40wt%.
The granularity of the aluminous cement is 40~60 μm；The main chemical compositions of the aluminous cement are：Al2O3For 60~65wt%, CaO are 30~35wt%.
Embodiment 1
A kind of heat insulation and wear resistance castable and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step presses flyash: gangue: the mass ratio of mullite is (1.5~1.7): (2.0~2.2): 1 dispensing is stirred It mixes 10~15 minutes, obtains mixture.
The Aluminum sol for accounting for the 3~5wt% of mixture is added into the mixture for second step, stirs 3~5 minutes, machine It is molded, obtain molding mixture.
The molding mixture is placed in Muffle furnace by third step, and 30~40 are heat-treated under the conditions of 1200~1240 DEG C Minute, furnace cooling comes out of the stove, and is crushed, ball milling, screening, respectively obtain the heat treatment material A, grain size that grain size is 1~3mm be 0.1~ The heat treatment material C that the heat treatment material B and grain size of 0.5mm is 60~80 μm.
4th step expects A by the heat treatment: B is expected in the heat treatment: C: alumina silicate fibre: calcium aluminate is expected in the heat treatment The mass ratio of cement is (9~11): (3.0~3.4): (5.0~5.4): (0.5~0.7): 1 dispensing, stirs 5~8 minutes, obtains To presoma mixture.
The water for accounting for 5~6wt% of the presoma mixture is added into the presoma mixture for 5th step, and mixing is stirred 3~5 minutes are mixed to get heat insulation and wear resistance castable.
Heat insulation and wear resistance castable prepared by the present embodiment is after testing：Thermal coefficient is 1.9~2.1Wm-1·K-1；It is resistance to Mill property experiment wear extent is 4.8~5.0cm3；Cold crushing strength is 45~47MPa.
Embodiment 2
A kind of heat insulation and wear resistance castable and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step presses flyash: gangue: the mass ratio of mullite is (1.6~1.8): (2.1~2.3): 1 dispensing is stirred It mixes 10~15 minutes, obtains mixture.
The Aluminum sol for accounting for the 3~5wt% of mixture is added into the mixture for second step, stirs 3~5 minutes, machine It is molded, obtain molding mixture.
The molding mixture is placed in Muffle furnace by third step, and 30~40 are heat-treated under the conditions of 1220~1260 DEG C Minute, furnace cooling comes out of the stove, and is crushed, ball milling, screening, respectively obtain the heat treatment material A, grain size that grain size is 1~3mm be 0.1~ The heat treatment material C that the heat treatment material B and grain size of 0.5mm is 60~80 μm.
4th step expects A by the heat treatment: B is expected in the heat treatment: C: alumina silicate fibre: calcium aluminate is expected in the heat treatment The mass ratio of cement is (9~11): (3.2~3.6): (5.2~5.6): (0.5~0.7): 1 dispensing, stirs 5~8 minutes, obtains To presoma mixture.
The water for accounting for 5~6wt% of the presoma mixture is added into the presoma mixture for 5th step, and mixing is stirred 3~5 minutes are mixed to get heat insulation and wear resistance castable.
Heat insulation and wear resistance castable prepared by the present embodiment is after testing：Thermal coefficient is 2.0~2.2Wm-1·K-1；It is resistance to Mill property experiment wear extent is 4.9~5.1cm3；Cold crushing strength is 46~48MPa.
Embodiment 3
A kind of heat insulation and wear resistance castable and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step presses flyash: gangue: the mass ratio of mullite is (1.7~1.9): (2.2~2.4): 1 dispensing is stirred It mixes 10~15 minutes, obtains mixture.
The Aluminum sol for accounting for the 3~5wt% of mixture is added into the mixture for second step, stirs 3~5 minutes, machine It is molded, obtain molding mixture.
The molding mixture is placed in Muffle furnace by third step, and 30~40 are heat-treated under the conditions of 1240~1280 DEG C Minute, furnace cooling comes out of the stove, and is crushed, ball milling, screening, respectively obtain the heat treatment material A, grain size that grain size is 1~3mm be 0.1~ The heat treatment material C that the heat treatment material B and grain size of 0.5mm is 60~80 μm.
4th step expects A by the heat treatment: B is expected in the heat treatment: C: alumina silicate fibre: calcium aluminate is expected in the heat treatment The mass ratio of cement is (10~12): (3.4~3.8): (5.4~5.8): (0.6~0.8): 1 dispensing, stirs 5~8 minutes, obtains To presoma mixture.
The water for accounting for 5~6wt% of the presoma mixture is added into the presoma mixture for 5th step, and mixing is stirred 3~5 minutes are mixed to get heat insulation and wear resistance castable.
Heat insulation and wear resistance castable prepared by the present embodiment is after testing：Thermal coefficient is 2.1~2.3Wm-1·K-1；It is resistance to Mill property experiment wear extent is 5.0~5.2cm3；Cold crushing strength is 47~49MPa.
Embodiment 4
A kind of heat insulation and wear resistance castable and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step presses flyash: gangue: the mass ratio of mullite is (1.8~2.0): (2.3~2.5): 1 dispensing is stirred It mixes 10~15 minutes, obtains mixture.
The Aluminum sol for accounting for the 3~5wt% of mixture is added into the mixture for second step, stirs 3~5 minutes, machine It is molded, obtain molding mixture.
The molding mixture is placed in Muffle furnace by third step, and 30~40 are heat-treated under the conditions of 1260~1300 DEG C Minute, furnace cooling comes out of the stove, and is crushed, ball milling, screening, respectively obtain the heat treatment material A, grain size that grain size is 1~3mm be 0.1~ The heat treatment material C that the heat treatment material B and grain size of 0.5mm is 60~80 μm.
4th step expects A by the heat treatment: B is expected in the heat treatment: C: alumina silicate fibre: calcium aluminate is expected in the heat treatment The mass ratio of cement is (10~12): (3.6~4.0): (5.6~6.0): (0.6~0.8): 1 dispensing, stirs 5~8 minutes, obtains To presoma mixture.
The water for accounting for 5~6wt% of the presoma mixture is added into the presoma mixture for 5th step, and mixing is stirred 3~5 minutes are mixed to get heat insulation and wear resistance castable.
Heat insulation and wear resistance castable prepared by the present embodiment is after testing：Thermal coefficient is 2.2~2.4Wm-1·K-1；It is resistance to Mill property experiment wear extent is 5.1~5.3cm3；Cold crushing strength is 48~50MPa.
Present embodiment has the positive effect that compared with prior art：
1, present embodiment uses flyash and gangue for primary raw material, realizes following for solid waste resource Ring utilizes, and significantly reduces the manufacturing cost of heat insulation and wear resistance castable.
2, present embodiment is only needed raw material pre-burning, broken rear dispensing, is mixed to obtain the final product, and preparation process is simple.
3, present embodiment reduces the thermal coefficient of heat insulation and wear resistance castable, together by the introducing of alumina silicate fibre Crosslinking curing of the Shi Liyong alumina silicate fibres in aluminous cement promotes the intensity and wearability of heat insulation and wear resistance castable.
Heat insulation and wear resistance castable prepared by present embodiment is after testing：Thermal coefficient is 1.9~2.4Wm-1· K-1；Abrasion test wear extent is 4.8~5.3cm3；Cold crushing strength is 45~50MPa.
Therefore, present embodiment has the characteristics that simple for process low with production cost；Prepared heat insulation and wear resistance pours Material feeding thermal coefficient is low, intensity is high and wearability is good.

Claims (8)

1. a kind of preparation method of heat insulation and wear resistance castable, it is characterised in that the step of preparation method is as follows：
The first step presses flyash: gangue: the mass ratio of mullite is (1.5~2.0): (2.0~2.5): 1 dispensing, stirring 10 ~15 minutes, obtain mixture；
The Aluminum sol for accounting for the 3~5wt% of mixture is added into the mixture for second step, stirs 3~5 minutes, machine is pressed into Type obtains molding mixture；
The molding mixture is placed in Muffle furnace by third step, is heat-treated 30~40 minutes under the conditions of 1200~1300 DEG C, Furnace cooling is come out of the stove, and is crushed, ball milling, and screening, it is 0.1~0.5mm to respectively obtain heat treatment material A, grain size that grain size is 1~3mm Heat treatment material B and grain size be 60~80 μm of heat treatment material C；
4th step expects A by the heat treatment: B is expected in the heat treatment: C: alumina silicate fibre: aluminous cement is expected in the heat treatment Mass ratio be (9~12): (3.0~4.0): (5.0~6.0): (0.5~0.8): 1 dispensing, stir 5~8 minutes, before obtaining Drive body mixture；
The water for accounting for 5~6wt% of the presoma mixture, mixing, stirring 3 are added into the presoma mixture for 5th step ~5 minutes to get heat insulation and wear resistance castable.
2. the preparation method of heat insulation and wear resistance castable according to claim 1, it is characterised in that the granularity of the flyash is 60~80 μm；The main chemical compositions of the flyash are：Al2O3For 40~45wt%, SiO2For 40~45wt%, Fe2O3≤ 2wt%, CaO≤2wt%.
3. the preparation method of heat insulation and wear resistance castable according to claim 1, it is characterised in that the granularity of the gangue is 60~80 μm；The main chemical compositions of the gangue are：Al2O3For 35~40wt%, SiO2For 40~45wt%, Fe2O3It is 1 ~2wt%, CaO are 1~2wt%, and C is 4~5wt%.
4. the preparation method of heat insulation and wear resistance castable according to claim 1, it is characterised in that the granularity of the mullite is 60~80 μm；The main chemical compositions of the mullite are：Al2O3For 75~80wt%, SiO2For 15~20wt%.
5. the preparation method of heat insulation and wear resistance castable according to claim 1, it is characterised in that the Al of the Aluminum sol2O3For 20~25wt%.
6. the preparation method of heat insulation and wear resistance castable according to claim 1, it is characterised in that the alumina silicate fibre it is straight Diameter is 3~4 μm, and the length of the alumina silicate fibre is 1~2mm；The main chemical compositions of the alumina silicate fibre are：Al2O3For 55~60wt%, SiO2For 35~40wt%.
7. the preparation method of heat insulation and wear resistance castable according to claim 1, it is characterised in that the grain of the aluminous cement Degree is 40~60 μm；The main chemical compositions of the aluminous cement are：Al2O3It is 30~35wt% for 60~65wt%, CaO.
8. a kind of heat insulation and wear resistance castable, it is characterised in that the heat insulation and wear resistance castable is appointed according in claim 1~7 Heat insulation and wear resistance castable prepared by the preparation method of heat insulation and wear resistance castable described in one.
CN201810395015.0A 2018-04-27 2018-04-27 A kind of heat insulation and wear resistance castable and preparation method thereof Withdrawn CN108424156A (en)

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CN102584289A (en) * 2012-02-08 2012-07-18 武汉科技大学 Mullite lightweight aggregate and preparation method thereof
CN103553638A (en) * 2013-09-28 2014-02-05 安徽宁火新材料有限公司 Wear resistant castable
CN104311066A (en) * 2014-10-09 2015-01-28 宁夏天纵泓光余热发电技术有限公司 Wear-resisting thermal-insulating refractory castable material
CN105601294A (en) * 2015-12-30 2016-05-25 宜兴市集创新材料科技有限公司 Wear-resisting castable
CN107056309A (en) * 2017-04-07 2017-08-18 武汉科技大学 A kind of Al2O3‑TiO2CaO matter gravity flow pouring materials and preparation method thereof
CN107010968A (en) * 2017-04-19 2017-08-04 郑州大学 A kind of high-strength light-weight corundum porzite flame-proof aggregate and preparation method thereof
CN107117975A (en) * 2017-06-05 2017-09-01 武汉科技大学 A kind of alumina silicate lightweight gunning refractory and preparation method thereof
CN107311680A (en) * 2017-07-28 2017-11-03 武汉科技大学 A kind of lightweight corundum-mullite castable and preparation method thereof

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Application publication date: 20180821