CN112624778B - High-strength high-density inorganic fiber product and preparation method thereof - Google Patents
High-strength high-density inorganic fiber product and preparation method thereof Download PDFInfo
- Publication number
- CN112624778B CN112624778B CN202011503355.4A CN202011503355A CN112624778B CN 112624778 B CN112624778 B CN 112624778B CN 202011503355 A CN202011503355 A CN 202011503355A CN 112624778 B CN112624778 B CN 112624778B
- Authority
- CN
- China
- Prior art keywords
- fiber
- parts
- weight
- inorganic
- fibers
- 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.)
- Active
Links
- 239000012784 inorganic fiber Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 172
- 239000000919 ceramic Substances 0.000 claims abstract description 63
- 238000005245 sintering Methods 0.000 claims abstract description 23
- 239000011230 binding agent Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 239000002002 slurry Substances 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 20
- 238000007664 blowing Methods 0.000 claims description 16
- 229920002472 Starch Polymers 0.000 claims description 14
- 125000002091 cationic group Chemical group 0.000 claims description 14
- 239000008107 starch Substances 0.000 claims description 14
- 235000019698 starch Nutrition 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical group O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 13
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 11
- 229910052863 mullite Inorganic materials 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 229910001570 bauxite Inorganic materials 0.000 claims description 9
- 239000011268 mixed slurry Substances 0.000 claims description 9
- 238000009987 spinning Methods 0.000 claims description 9
- 229920001131 Pulp (paper) Polymers 0.000 claims description 8
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 7
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 238000005189 flocculation Methods 0.000 claims description 4
- 230000016615 flocculation Effects 0.000 claims description 4
- 229910052903 pyrophyllite Inorganic materials 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000378 calcium silicate Substances 0.000 claims description 3
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 3
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 3
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- 239000000391 magnesium silicate Substances 0.000 claims description 3
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 3
- 235000019792 magnesium silicate Nutrition 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 239000011094 fiberboard Substances 0.000 abstract description 12
- 239000006185 dispersion Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 238000003825 pressing Methods 0.000 description 7
- 238000010304 firing Methods 0.000 description 6
- 238000002791 soaking Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000000967 suction filtration Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052661 anorthite Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- -1 and further Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- 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
-
- 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
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
- C04B2235/30—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
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
-
- 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
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
-
- 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
- C04B2235/5212—Organic
-
- 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
- C04B2235/02—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
- C04B2235/5232—Silica or silicates other than aluminosilicates, e.g. quartz
-
- 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
- C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
- C04B2235/61—Mechanical properties, e.g. fracture toughness, hardness, Young's modulus or strength
-
- 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
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a high-strength high-density inorganic fiber product, which comprises the following preparation raw materials: inorganic composite fibers: 20-50 parts by weight; organic fiber: 0.1 to 1 part by weight; refractory filler: 30-60 parts by weight; sintering aid: 1-5 parts by weight; inorganic binder: 5-10 parts by weight; filter aid: 2-8 parts by weight; the inorganic composite fiber comprises the following components in percentage by mass (1-5): (1-5): (1-5) blown ceramic fibers, spun ceramic fibers and soluble fibers. The compressive strength of the ceramic fiber board after being fired is improved to more than 5MPa from the original 2MPa, so that the ceramic fiber board can still keep better performance after being used at high temperature. The invention also provides a preparation method of the high-strength high-density inorganic fiber product.
Description
Technical Field
The invention belongs to the technical field of inorganic heat-insulating materials, and particularly relates to a high-strength high-density inorganic fiber product and a preparation method thereof.
Background
High density ceramic fiber board (volume density 600-1000 kg/m) 3 ) Ceramic fiber, refractory raw materials and organic and inorganic binders are usually produced by a vacuum suction filtration or fourdrinier wire forming production process, and are widely applied to the heat preservation of the industrial kiln back lining.
The prior high-density ceramic fiber board (the volume density is 600-1000 kg/m) 3 ) In the preparation process, the fibers need to be chopped in advance so that the prepared fiberboard can meet the requirements of density and strength (such as the method described in patent CN 108033756B), but the operation of the process is complex and is not beneficial to the continuous production of the process.
Meanwhile, the mineral fiber raw materials used in the raw materials have smooth surfaces and cannot be wrapped by powder raw materials, so that the fiber raw materials and the added powder raw materials are not uniformly mixed in the preparation process, and further, the problems of nonuniform powder distribution, powder sinking and fiber floating of the molded blank exist, and the product quality is influenced;
the strength of the existing high-density ceramic fiber board is mostly formed by adding an inorganic binder, a large amount of the inorganic binder is needed to be added, meanwhile, the whole board becomes brittle after being calcined for a long time in a high-temperature environment, the surface of the board falls off or even breaks under the action of hot wind erosion, and the board has the problems of low strength after being calcined, lower than 2MPa, insufficient pressure bearing capacity, high use and replacement frequency and high cost.
Disclosure of Invention
The invention provides a high-strength high-density inorganic fiber product and a preparation method thereof.
The invention provides a high-strength high-density inorganic fiber product, which comprises the following preparation raw materials:
inorganic composite fibers: 20-50 parts by weight; organic fiber: 0.1 to 1 weight part; refractory filler: 30-60 parts by weight; sintering aid: 1-5 parts by weight; inorganic binder: 5-10 parts by weight; filter aid: 2-8 parts by weight;
the inorganic composite fiber comprises the following components in percentage by mass (1-5): (1-5): (1-5) blown ceramic fibers, spun ceramic fibers and soluble fibers.
Preferably, the average diameter of the blown ceramic fibers is 2 to 4 μm, and the average length is 10 to 50mm;
the average diameter of the spinning ceramic fiber is 3-5 mu m, and the average length is 100-200 mm.
Preferably, the soluble fibers comprise soluble magnesium silicate fibers and/or soluble calcium silicate fibers.
Preferably, the organic fibers are pretreated wood pulp fibers;
the pretreatment is to soak and disperse wood pulp fibers in water.
Preferably, the wood pulp fiber is soaked in water for 5-15 min.
Preferably, the refractory filler is a mixture of two or more of high bauxite, pyrophyllite, mullite powder and calcined alumina powder.
Preferably, the sintering aid is one or more of potassium feldspar, calcium oxide and magnesium oxide.
Preferably, the inorganic binder is silica sol, and the mass concentration of the silica sol is 5 to 40wt%.
Preferably, the high-strength high-density inorganic fiber product has a compressive strength of 4 to 15MPa and a bulk density of 600 to 1000kg/m 3 。
The present invention provides a method for preparing a high strength and high density inorganic fiber product as described above, comprising the steps of:
a) Adding the spinning ceramic fiber, the organic fiber, the blowing ceramic fiber and the soluble fiber into water in sequence, and dispersing to obtain fiber slurry;
b) Mixing refractory filler, sintering aid and inorganic binder with the fiber slurry to obtain mixed slurry with the mass concentration of 1-12%;
c) And adding a filter aid into the mixed slurry for flocculation, forming a wet blank from the flocculated slurry, and drying to obtain the high-strength high-density inorganic fiber product.
The invention provides a high-strength high-density inorganic fiber product, which comprises the following preparation raw materials: inorganic composite fibers: 20-50 parts by weight; organic fiber: 0.1 to 1 weight part; refractory filler: 30-60 parts by weight; sintering aid: 1-5 parts by weight; inorganic binder: 5-10 parts by weight; filter aid: 2-8 parts by weight; the inorganic composite fiber comprises the following components in percentage by mass (1-5): (1-5): (1-5) blown ceramic fibers, spun ceramic fibers and soluble fibers. According to the invention, inorganic composite fibers are adopted, the ratio is optimized (blowing ceramic fibers, throwing ceramic fibers and soluble fibers), and the fibers are prevented from being chopped in advance by improving the feeding sequence, so that the link of raw material pretreatment is reduced; after being pretreated, the organic fibers and the inorganic composite fibers are used as raw materials, so that the fibers have good wrapping capacity on refractory fillers, and further, powder and the fiber raw materials are uniformly mixed, the uniformity of slurry in the preparation process is improved, the uniformity of a formed blank is improved, and the finished product rate of the product is improved to more than 95%; adding sintering aid/micropowder and regulating and controlling the proportion, forming a specific crystalline phase at a specific temperature in the sintering process so as to reduce the content of the inorganic binder and multiply increase the strength and density of the product. Experimental results show that the compressive strength of the ceramic fiber board after being fired is improved to more than 5MPa from the original 2MPa, so that the ceramic fiber board can still keep better performance after being used at high temperature.
Detailed Description
The invention provides a high-strength high-density inorganic fiber product, which comprises the following preparation raw materials:
inorganic composite fiber: 20-50 parts by weight; organic fiber: 0.1 to 1 weight part; refractory filler: 30-60 parts by weight; sintering aid: 1-5 parts by weight; inorganic binder: 5-10 parts by weight; filter aid: 2-8 parts by weight;
the inorganic composite fiber comprises the following components in percentage by mass (1-5): (1-5): (1-5) blown ceramic fibers, spun ceramic fibers and soluble fibers.
In the present invention, the inorganic composite fiber is preferably 20 to 50 parts by weight, more preferably 25 to 45 parts by weight, such as 20 parts, 21 parts, 22 parts, 23 parts, 24 parts, 25 parts, 26 parts, 27 parts, 28 parts, 29 parts, 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 parts, 49 parts or 50 parts by weight, and preferably a range value in which any of the above values is an upper limit or a lower limit.
In the invention, the inorganic composite fiber preferably comprises a spinning ceramic fiber, a blowing ceramic fiber and a soluble fiber, wherein the mass ratio of the spinning ceramic fiber to the blowing ceramic fiber to the soluble fiber is (1-5): (1-5): (1-5), in the proportion range, the parts of the spinning ceramic fibers can be 1 part, 2 parts, 3 parts, 4 parts or 5 parts; the parts of the blown ceramic fibers can be 1 part, 2 parts, 3 parts, 4 parts or 5 parts, and the parts of the soluble fibers can be 1 part, 1.2 parts, 1.6 parts, 1.7 parts, 2 parts, 3 parts, 4 parts or 5 parts; preferably, the ratio of the three fibers is any value of the number of the fibers.
In the present invention, the blowing ceramic fiber means a fiber prepared by blowing, which can be prepared by a conventional process in the prior art, and has the characteristics of fine fiber diameter and short fiber length, and has an average diameter of 2 to 4 μm and an average length of 10 to 50mm, and contains Al as a main component 2 O 3 、SiO 2 ;
The thread throwing ceramic fiber is prepared by a thread throwing mode, the thread throwing mode can adopt the existing process in the prior art, and has the characteristics of long fiber, thick fiber diameter and high strengthThe diameter is 3-5 μm, the average length is 100-200 mm, and the main component is Al 2 O 3 、SiO 2 ;
The soluble fiber comprises soluble magnesium silicate fiber and soluble calcium silicate fiber.
The invention improves the interweaving strength between the fibers in the slurry by utilizing the difference between the fiber length and the fiber diameter of the injected fibers and the melt-spun fibers, thereby realizing no short-cut processing pretreatment of the fibers and reducing the resilience of the wet blank after compression molding.
In the present invention, the organic fiber is preferably a wood pulp fiber, and the weight part of the wood pulp fiber is preferably 0.1 to 1 part, such as 0.1 part, 0.2 part, 0.3 part, 0.4 part, 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part or 1 part, and is preferably a range value in which any of the above values is an upper limit or a lower limit.
The invention preferably carries out soaking pretreatment on the organic fiber in water for 5-15 min and uniformly disperses by using equipment. The purpose of pretreating the inorganic fiber is to improve the wrapping capacity of the organic fiber on the powdery refractory filler, further improve the uniform mixing degree of the fiber raw material and the powder and improve the product quality.
In the invention, the refractory filler is preferably a mixture of two or more of high bauxite, pyrophyllite, mullite powder and calcined alumina powder; the refractory filler is preferably 30 to 60 parts by weight, such as 30 parts, 31 parts, 32 parts, 33 parts, 34 parts, 35 parts, 36 parts, 37 parts, 38 parts, 39 parts, 40 parts, 41 parts, 42 parts, 43 parts, 44 parts, 45 parts, 46 parts, 47 parts, 48 parts, 49 parts, 50 parts, 51 parts, 52 parts, 53 parts, 54 parts, 55 parts, 56 parts, 57 parts, 58 parts, 59 parts or 60 parts, and preferably ranges in which any of the above numerical values is an upper limit or a lower limit.
The sintering aid is preferably one or more of potash feldspar, calcium oxide and magnesium oxide, and the addition of the sintering aid is favorable for forming the combination between powder (accompanied by one or more of cordierite phase, anorthite phase and cristobalite phase) with mullite phase as the main crystal phase and fibers in the sintering process, so that the strength and the density of the product are greatly increased finally. The weight portion of the sintering aid is preferably 1 to 5 portions, such as 1 portion, 2 portions, 3 portions, 4 portions or 5 portions, and is preferably a range value with any value of the above as an upper limit or a lower limit.
The inorganic binder is preferably silica sol, the mass concentration of the silica sol is preferably 5 to 40%, more preferably 10 to 30%, such as 5%, 10%, 15%, 20%, 25%, 30%, 35% or 40%, and is preferably a range value with any value of the above as an upper limit or a lower limit; in the present invention, the silica sol is preferably used in an amount of 5 to 10 parts by weight (in terms of solid content), for example, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or 10 parts, and preferably in a range where any of the above values is the upper or lower limit.
In the present invention, the filter aid is preferably cationic starch or a combination of cationic starch and polyacrylamide. When a combination of cationic starch and polyacrylamide is used, the mass of polyacrylamide is preferably 1 to 5wt%, preferably 2 to 4wt% of the mass of cationic starch. The filter aid is preferably present in an amount of 2 to 8 parts by weight, such as 2, 3, 4, 5, 6, 7 or 8 parts by weight, preferably within the upper or lower limits of any of the above values.
The invention also provides a preparation method of the high-strength high-density inorganic fiber product, which comprises the following steps:
a) Under the stirring condition, sequentially adding the throwing ceramic fiber, the organic fiber, the blowing ceramic fiber and the soluble fiber into water, and dispersing to obtain fiber slurry;
b) Mixing refractory filler, sintering aid and inorganic binder with the fiber slurry to obtain mixed slurry;
c) And adding a filter aid into the mixed slurry for flocculation, forming a wet blank from the flocculated slurry, and drying to obtain the high-strength high-density inorganic fiber product.
In the invention, the feeding sequence of the inorganic composite fiber is that firstly the throwing ceramic fiber is added, then the organic fiber is added, then the blowing ceramic fiber is added, and finally the soluble fiber is added. The addition mode is beneficial to interweaving different fibers, because the spun ceramic fiber is long, the spun ceramic fiber is firstly added into water to be scattered, so that the spun ceramic fiber is uniformly dispersed, and the soluble fiber is finally added because the soluble fiber is brittle.
In the present invention, the types, sources and usage amounts of the spinning ceramic fibers, organic fibers, blowing ceramic fibers and soluble fibers are the same as those of the spinning ceramic fibers, organic fibers, blowing ceramic fibers and soluble fibers, and thus are not described herein again.
In the present invention, the types, sources and usage amounts of the refractory filler, the sintering aid and the inorganic binder are the same as those of the refractory filler, the sintering aid and the inorganic binder, and are not described herein again.
The mass concentration of the resulting mixed slurry is preferably 1 to 12%, more preferably 3 to 10%, such as 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, or 12%, and is preferably a range value having any of the above values as an upper limit or a lower limit.
After the mixed slurry is obtained, the filter aid is added into the mixed slurry to assist in filtration, so that the inorganic composite fiber, the organic fiber, the refractory filler, the sintering aid and the inorganic binding agent are flocculated together, and water is clear;
and then, carrying out vacuum suction filtration, long net shoveling or grouting forming on the flocculated slurry, pressing to obtain a wet blank with a corresponding thickness, conveying the wet blank into a drying chamber for drying, and finishing to obtain a product after drying.
In the present invention, the flocculation slurry is formed by a forming method commonly used in the art. The volume density of the dried product reaches 600-1000 kg/m 3 . The thickness of the wet blank is 1-1.2 times of the thickness of the dried product, and the water content is 40-60 wt%.
The high-density ceramic fiber board prepared by the method does not need to be chopped in advance in the preparation process, so that the process is simplified; by adding the organic fiber, the uniformity of slurry in the preparation process is improved, the uniformity of the formed blank is improved, and the yield of the product is improved to more than 95%.
Meanwhile, by adding a sintering aid/micro powder and regulating the proportion, a specific crystal phase (mullite phase is generated under the action of the sintering aid by the filler and the glassy fiber, and one or more crystal phases of cordierite phase, anorthite phase and cristobalite phase are accompanied by the mullite phase, and the generated crystal phase is combined with the fiber, so that the product is compact in structure and high in strength), and further, under the condition of reducing the using amount of an inorganic binder, the compressive strength of the ceramic fiber board after being sintered is increased to more than 5MPa from the original 2MPa, so that the ceramic fiber board can still keep better performance after being used at high temperature (the problems of fiber pulverization, collapse and falling off and the like after being used at high temperature of a common high-density ceramic fiber board).
In order to further illustrate the present invention, the following examples are provided to describe in detail a high-strength high-density inorganic fiber product and a method for making the same, but should not be construed as limiting the scope of the present invention.
Example 1
(1) Soaking 8kg of organic fiber in water, and uniformly dispersing by using a dispersion machine for later use;
(2) Adding 200kg of throwing ceramic fibers into water for dispersion, then adding organic fibers, then adding 50kg of blowing ceramic fibers, and finally adding 80kg of soluble fibers for uniform dispersion;
(3) Adding 200kg of high-alumina bauxite, 200kg of pyrophyllite and 30kg of potassium feldspar into water, then adding 200kg of 30% silica sol, and finally adding 40kg of cationic starch, and uniformly mixing to ensure that the water is clear;
(4) And (3) forming the flocculated slurry in a vacuum suction filtration mode, pressing the slurry to a wet blank with certain thickness and density, conveying the wet blank to a drying chamber for drying, and finishing the dried blank into a product.
The volume density of the manufactured high-strength high-density inorganic fiber product is 900kg/m 3 The compressive strength was 11MPa, and the compressive strength after firing was 11.5MPa. By adding the sinterable filler at high temperature, the high-temperature strength of the product is improved, and the strength of the product after sintering at high temperature is improved compared with that of the product at normal temperature.
The production qualification rate is 96% of the weight of the inorganic fiber product obtained in the above formula is 900kg/m, and 10 blocks of the inorganic fiber product having high strength and high density after production have a specification of 600X 20mm are used in the following Table 1 3 Production, theoretical weight of each article 6.48 kg):
table 1 deviation in density of the product of example 1 of the invention
Numbering | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Weight kg | 6.55 | 6.53 | 6.60 | 6.48 | 6.35 | 6.50 | 6.51 | 6.40 | 6.60 | 6.37 |
Deviation in% | +1.08 | +0.77 | +1.85 | 0 | -2.01 | +0.02 | +0.46 | -1.23 | +1.85 | -1.70 |
It can be seen that the high density inorganic fiber product has a small average deviation value of the density, indicating that the uniformity of the slurry during the preparation process is good.
Example 2
(1) Soaking 7kg of organic fiber in water, and uniformly dispersing by using a dispersion machine for later use;
(2) 60kg of throwing ceramic fiber is added into water for dispersion, then organic fiber is added, 180kg of blowing ceramic fiber is added, and finally 100kg of soluble fiber is added for uniform dispersion;
(3) Adding 150kg of high-alumina bauxite, 200kg of synthetic mullite powder and 40kg of potassium feldspar into water, then adding 250kg of silica sol with the concentration of 20%, and finally adding 50kg of cationic starch, and uniformly mixing to ensure that the water is clear;
(4) And (3) forming the flocculated slurry in a long net shoveling manner, pressing to form a wet blank with certain thickness and density, conveying to a drying chamber for drying, and finishing to obtain a product after drying.
High-strength high-density inorganic fiber product after productionBulk density 630kg/m 3 The compressive strength was 4.5MPa and 5.3MPa after firing.
The production yield is 98%, 10 blocks of the produced high-strength high-density inorganic fiber product with the specification of 1000X 30mm and the weight shown in Table 2 (according to 630 kg/m) 3 Production, theoretical weight of each article 18.9 kg):
table 2 deviation in density of the product of example 2 of the present invention
It can be seen that the high density inorganic fiber product has a small average deviation value of the density, indicating that the uniformity of the slurry during the preparation process is good.
The homogeneity of the slurry is better.
Comparative example 1: (addition of spun ceramic fiber only)
(1) Soaking 7kg of organic fiber in water, and uniformly dispersing by using a dispersion machine for later use;
(2) Adding 240kg of spinning ceramic fibers into water for dispersion, then adding organic fibers, and finally adding 100kg of soluble fibers for uniform dispersion;
(3) Adding 150kg of high-alumina bauxite, 200kg of synthetic mullite powder and 40kg of potassium feldspar into water, then adding 250kg of silica sol with the concentration of 20%, and finally adding 50kg of cationic starch, and uniformly mixing to ensure that the water is clear;
(4) And (3) forming the flocculated slurry in a long net shoveling manner, pressing to form a wet blank with certain thickness and density, conveying to a drying chamber for drying, and finishing to obtain a product after drying.
The volume density of the prepared high-strength high-density inorganic fiber product is 630kg/m 3 Compressive strength 3.0MPa, and compressive strength after firing 3.2MPa.
The production qualification rate is 92 percent, and the yield is high after production10 pieces of a high-strength and high-density inorganic fiber product having a gauge of 1000X 30mm and a weight as shown in Table 3 (630 kg/m) 3 Production, theoretical weight of each article 18.9 kg):
TABLE 3 Density deviations of the products of comparative example 1 according to the invention
Numbering | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Weight kg | 19.89 | 20.0 | 19.5 | 19.8 | 18.3 | 17.8 | 18.0 | 19.5 | 19.7 | 18.2 |
Deviation% | +5.24 | +5.82 | +3.17 | +4.76 | -3.17 | --5.82 | -4.76 | +3.17 | +4.23 | -3.70 |
As can be seen from Table 3, the average deviation value of the density of the high-density inorganic fiber product was relatively large.
COMPARATIVE EXAMPLE 2 (without organic fiber)
(1) 60kg of throwing ceramic fiber is added into water for dispersion, then 180kg of blowing ceramic fiber is added, and finally 100kg of soluble fiber is added for uniform dispersion;
(2) Adding 150kg of high-alumina bauxite, 200kg of synthetic mullite powder and 40kg of potassium feldspar into water, then adding 250kg of silica sol with the concentration of 20%, and finally adding 50kg of cationic starch, and uniformly mixing to ensure that the water is clear;
(3) And (3) forming the flocculated slurry in a long net shoveling mode, pressing to form a wet blank with a certain thickness and density, conveying to a drying chamber for drying, and finishing to obtain a product after drying.
The volume density of the prepared high-strength high-density inorganic fiber product is 630kg/m 3 Compressive strength of 3.6MPa and compressive strength after firing of 3.8MPa
The production percent of pass is 90 percent, and the high strength is obtained after production10 pieces of a high density inorganic fiber product having a gauge of 1000X 30mm and a weight shown in Table 4 (630 kg/m) 3 Production, theoretical weight of each article 18.9 kg):
table 4 deviation in density of the product of comparative example 2 of the present invention
Numbering | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
Weight kg | 20.5 | 17.5 | 20.2 | 20.3 | 20.8 | 19.9 | 18.4 | 17.0 | 20.0 | 19.5 |
Deviation% | +8.47 | -7.41 | +6.88 | +7.41 | +10.05 | +5.29 | -2.65 | -10.05 | +5.82 | +3.17 |
As can be seen from Table 4, the compressive strength of the product prepared in this comparative example was improved as compared with the single fiber in comparative example 1, but the dispersion property was lowered and the average deviation of the density was relatively large.
Comparative example 3 (No pretreatment of organic fiber)
(1) 60kg of throwing ceramic fiber is added into water for dispersion, then untreated organic fiber is added, 180kg of blowing ceramic fiber is added, and finally 100kg of soluble fiber is added for uniform dispersion;
(2) Adding 150kg of high-alumina bauxite, 200kg of synthetic mullite powder and 40kg of potassium feldspar into water, then adding 250kg of silica sol with the concentration of 20%, and finally adding 50kg of cationic starch, and uniformly mixing to ensure that the water is clear;
(3) And (3) forming the flocculated slurry in a long net shoveling mode, pressing to form a wet blank with a certain thickness and density, conveying to a drying chamber for drying, and finishing to obtain a product after drying.
The volume density of the manufactured high-strength high-density inorganic fiber product is 630kg/m 3 Compressive strength of 3.7MPa and compressive strength after firing of 4.0MPa
The production yield is 91%, 10 blocks of the produced high-strength high-density inorganic fiber product with the specification of 1000X 30mm and the weight shown in Table 5 (according to 630 kg/m) 3 Production, theoretical weight of each article 18.9 kg):
TABLE 5 Density deviations of the product of comparative example 3 according to the invention
It can be seen that although the organic fiber had a certain dispersion effect, the comparative example did not pretreat the organic fiber, and the density deviation value thereof did not meet the standard.
Comparative example 4 (without sintering aid)
(1) Soaking 7kg of organic fiber in water, and uniformly dispersing by using a dispersion machine for later use;
(2) 60kg of throwing ceramic fiber is added into water for dispersion, then organic fiber is added, 180kg of blowing ceramic fiber is added, and finally 100kg of soluble fiber is added for uniform dispersion;
(3) Adding 150kg of high-alumina bauxite and 200kg of synthetic mullite powder into water, then adding 250kg of silica sol with the concentration of 20%, and finally adding 50kg of cationic starch, and uniformly mixing to ensure that the water is clear;
(4) And (3) forming the flocculated slurry in a long net shoveling mode, pressing to form a wet blank with a certain thickness and density, conveying to a drying chamber for drying, and finishing to obtain a product after drying.
The volume density of the prepared high-strength high-density inorganic fiber product is 630kg/m 3 The compressive strength is 4.2MPa, the compressive strength after firing is 1.8MPa, and the problem of powder falling can also occur.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A high-strength high-density inorganic fiber product comprises the following preparation raw materials:
inorganic composite fiber: 20 to 50 parts by weight; organic fiber: 0.1 to 1 part by weight; refractory filler: 30 to 60 parts by weight; sintering aid: 1~5 parts by weight; inorganic binder: 5 to 10 parts by weight; filter aid: 2~8 parts by weight;
the inorganic composite fiber comprises (1~5): (1~5): (1~5) blown ceramic fibers, spun ceramic fibers, and soluble fibers;
the soluble fiber comprises soluble magnesium silicate fiber and/or soluble calcium silicate fiber;
the average diameter of the blown ceramic fiber is 2~4 mu m, and the average length is 10 to 50mm; the average diameter of the spinning ceramic fiber is 3~5 mu m, and the average length is 100 to 200mm;
the organic fiber is pretreated wood pulp fiber; the pretreatment is to soak and disperse wood pulp fibers in water;
the refractory filler is a mixture of more than two of high-alumina bauxite, pyrophyllite, mullite powder and calcined alumina powder; the sintering aid is one or more of potassium feldspar, calcium oxide and magnesium oxide; the inorganic binding agent is silica sol, and the mass concentration of the silica sol is 5-40wt%; the filter aid is cationic starch or a combination of the cationic starch and polyacrylamide, and when the combination of the cationic starch and the polyacrylamide is used, the mass of the polyacrylamide is 1wt% -5 wt% of that of the cationic starch.
2. The high strength, high density inorganic fiber product of claim 1 wherein the wood pulp fibers are soaked in water for 5 to 15min.
3. The high strength, high density inorganic fiber of claim 1The product is characterized in that the high-strength high-density inorganic fiber product has the compression strength of 4 to 15MPa and the bulk density of 600 to 1000kg/m 3 。
4. A method of making a high strength, high density inorganic fiber product as claimed in any of claims 1~3 comprising the steps of:
a) Sequentially adding the throwing ceramic fiber, the organic fiber, the blowing ceramic fiber and the soluble fiber into water, and dispersing to obtain fiber slurry;
b) Mixing a refractory filler, a sintering aid and an inorganic binder with the fiber slurry to obtain a mixed slurry with the mass concentration of 1-12%;
c) And adding a filter aid into the mixed slurry for flocculation, forming a wet blank from the flocculated slurry, and drying to obtain the high-strength high-density inorganic fiber product.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011503355.4A CN112624778B (en) | 2020-12-18 | 2020-12-18 | High-strength high-density inorganic fiber product and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011503355.4A CN112624778B (en) | 2020-12-18 | 2020-12-18 | High-strength high-density inorganic fiber product and preparation method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112624778A CN112624778A (en) | 2021-04-09 |
CN112624778B true CN112624778B (en) | 2023-03-21 |
Family
ID=75317316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011503355.4A Active CN112624778B (en) | 2020-12-18 | 2020-12-18 | High-strength high-density inorganic fiber product and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112624778B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116332656A (en) * | 2021-12-15 | 2023-06-27 | 山东鲁阳节能材料股份有限公司 | High-temperature refractory flange gasket and preparation method thereof |
CN116334957A (en) * | 2021-12-15 | 2023-06-27 | 山东鲁阳节能材料股份有限公司 | Soluble fiber paper and preparation method thereof |
CN115679746B (en) * | 2022-11-02 | 2024-04-05 | 山东鲁阳节能材料股份有限公司 | Soluble fiber paper and preparation method thereof |
CN115557796A (en) * | 2022-11-10 | 2023-01-03 | 信阳中毅高热材料有限公司 | High-strength silicon fiber board and preparation method thereof |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1193947C (en) * | 2001-12-01 | 2005-03-23 | 山东鲁阳股份有限公司 | Method for manufacturing aluminium silicate ceramic fiber using coalgangue and its use |
CN101081742A (en) * | 2006-05-29 | 2007-12-05 | 山东鲁阳股份有限公司 | Ceramic fiber building fireproof plate |
CN101157546B (en) * | 2007-09-18 | 2012-07-04 | 山东鲁阳股份有限公司 | Method for producing alumino-silicates ceramic fibre by employing broken ceramic chips and application thereof |
CN102344276A (en) * | 2011-03-15 | 2012-02-08 | 苏州伊索来特耐火纤维有限公司 | Production method of aluminum silicate inorganic fiberboard |
CN102199042A (en) * | 2011-03-28 | 2011-09-28 | 航天材料及工艺研究所 | Lightweight rigid ceramic heat-insulation tile and manufacture method thereof |
KR101650035B1 (en) * | 2014-01-14 | 2016-08-22 | 대한동방 주식회사 | Ceramic disk for high temperature and method of manufacturing thereof |
CN104529241B (en) * | 2014-12-15 | 2016-08-24 | 山东鲁阳股份有限公司 | Ceramic fibre liner and preparation method thereof |
CN105622080B (en) * | 2015-12-30 | 2018-04-24 | 山东鲁阳节能材料股份有限公司 | A kind of ceramic fibre sealed bolster plate and preparation method thereof |
CN108033756B (en) * | 2017-12-12 | 2020-07-07 | 山东鲁阳节能材料股份有限公司 | High-density ceramic fiber board and preparation method thereof |
CN108727003B (en) * | 2018-06-11 | 2020-09-29 | 山东鲁阳节能材料股份有限公司 | High-temperature-resistant filter material, preparation method thereof and high-temperature-resistant dust removal filter tube |
-
2020
- 2020-12-18 CN CN202011503355.4A patent/CN112624778B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN112624778A (en) | 2021-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112624778B (en) | High-strength high-density inorganic fiber product and preparation method thereof | |
CN108033756B (en) | High-density ceramic fiber board and preparation method thereof | |
CN109320219B (en) | High-performance aluminum-chromium refractory material and manufacturing method and application thereof | |
US6214102B1 (en) | Bonding of ceramic fibers | |
CN112374818B (en) | High-density ceramic fiber board with use temperature of more than 1100 ℃ and preparation method thereof | |
CN110590346A (en) | High-heat-conductivity wear-resistant material for circulating fluidized bed boiler | |
CN114057467B (en) | High-strength ceramic tile and preparation method thereof | |
CN110330350A (en) | A kind of preparation method of fiber reinforced alumina ceramics | |
CN114988894A (en) | Light thermal shock-resistant mullite cordierite rotary tube and preparation method thereof | |
CN104961445B (en) | Composite ceramic material used for crucible and preparation method thereof | |
CN110040995B (en) | Preparation method of high-temperature light tough mullite aggregate | |
CN112723897B (en) | High-density ceramic fiber board not prone to secondary cracking and preparation method thereof | |
CN112573933B (en) | Ceramic fiber board and preparation method thereof | |
CN102503238B (en) | Preparation method of low-density polycrystalline mullite ceramic fiber flexible product | |
CN117142877B (en) | Preparation method of light silica brick and light silica brick obtained by preparation method | |
CN110963807A (en) | Energy-saving mullite refractory brick for cement kiln transition zone and preparation method thereof | |
CN112521169A (en) | High-density ceramic fiber board and preparation method thereof | |
CN112645677A (en) | High-low temperature composite high-density ceramic fiber board and preparation method thereof | |
JPS6410469B2 (en) | ||
CN110937906A (en) | Safe and energy-saving smelting furnace body and smelting device adopting same | |
CN1052467C (en) | Dinas-carbofrax brick | |
CN114031381A (en) | Silicon brick added with silicon iron nitride and preparation method thereof | |
CN1307083A (en) | Method for mfg. thermal insulation and fireproof calcium silicate material | |
CN112523006A (en) | Method for preparing high-density ceramic fiber board by secondary impregnation | |
CN112279637A (en) | Alumina fiber-magnesia-alumina spinel porous ceramic and preparation method thereof |
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 | ||
GR01 | Patent grant | ||
GR01 | Patent grant |