CN114890007B - Preparation method of high-strength composite ceramic wear-resistant lining - Google Patents
Preparation method of high-strength composite ceramic wear-resistant lining Download PDFInfo
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- CN114890007B CN114890007B CN202210683705.2A CN202210683705A CN114890007B CN 114890007 B CN114890007 B CN 114890007B CN 202210683705 A CN202210683705 A CN 202210683705A CN 114890007 B CN114890007 B CN 114890007B
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- 239000000919 ceramic Substances 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract 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 abstract description 32
- 239000000843 powder Substances 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 25
- 239000002270 dispersing agent Substances 0.000 claims abstract description 20
- 229910052849 andalusite Inorganic materials 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 16
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 16
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 14
- 238000003723 Smelting Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 16
- 238000000227 grinding Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 7
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 7
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 7
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 7
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000011049 filling Methods 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group 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 description 9
- 229910052863 mullite Inorganic materials 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000036571 hydration Effects 0.000 description 3
- 238000006703 hydration reaction Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008642 heat stress Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/02—Wall construction
- B65D90/04—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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
-
- 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
- C04B35/16—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 silicates other than clay
- C04B35/18—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 silicates other than clay rich in aluminium oxide
-
- 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
- C04B2235/34—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
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- 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
- C04B2235/40—Metallic constituents or additives not added as binding phase
- C04B2235/402—Aluminium
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—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
- C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
- C04B2235/5244—Silicon carbide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a preparation method of a high-strength composite ceramic wear-resistant lining, which comprises a lining body, wherein the lining body is a prefabricated body with a yin-yang interface, the prefabricated body consists of a matrix and a wear-resistant body wrapped outside the matrix, and the wear-resistant body consists of alumina powder, guangxi white mud, water and rho-Al 2 O 3 The matrix consists of andalusite, alumina powder, aluminum powder, silicon carbide fibers and a dispersing agent. The invention improves the impact resistance and wear resistance, adapts to the production condition of high smelting strength to the greatest extent, prolongs the service life by more than three times, reduces the maintenance frequency and ensures the production continuity of equipment.
Description
Technical Field
The invention relates to the technical field of refractory materials, in particular to a preparation method of a high-strength composite ceramic wear-resistant lining.
Background
At present, smelting strength in the iron-making industry is generally increased, storage and transportation capacity of a mineral tank storage bin is greatly increased, rotation speed of a belt is doubled, gravity acceleration generates larger impact force on the surface of a wear-resistant layer when materials enter the mineral tank storage bin, and meanwhile, a large amount of red ores are associated, so that performance requirements of impact resistance, abrasion resistance and high temperature resistance are provided for a lining plate. Particularly, impact-resistant, abrasion-resistant and high-temperature-resistant performance requirements are also required for impact-resistant parts such as a machine head and machine tail blanking point, a chute blanking point and the like of the belt conveyor. The traditional ceramic wear-resistant spray paint has the advantages of low plasticity, high hardness, large thickness, large dosage, unsmooth surface, easy material blockage and service life of not more than 3 years; the traditional wear-resistant castable is difficult to solve at the slag drop point, the castable is not resistant to burning and impact smashing, a small amount of red slag is discharged, the surface layer of the wear-resistant layer is burnt, the whole wear-resistant layer can be rapidly peeled off, in addition, the anchoring piece is used for casting, and after the wear-resistant layer is destroyed, the maintenance can only be frequently smeared and maintained, and the maintenance period is long.
Disclosure of Invention
The invention aims to provide a high-strength composite ceramic wear-resistant lining and a preparation method thereof, and the composite ceramic wear-resistant lining has more excellent impact resistance and wear resistance, is suitable for the production condition of high smelting strength to the greatest extent, and can prolong the service life.
The technical scheme adopted by the invention for achieving the purpose is as follows: the high-strength composite ceramic wear-resistant lining comprises a lining body, wherein the lining body is a prefabricated body with a male-female interface, the prefabricated body consists of a matrix and a wear-resistant body wrapped outside the matrix, and the wear-resistant body consists of alumina powder, guangxi white mud, water and rho-Al 2 O 3 And a dispersing agent, wherein the weight percentages of the raw materials are as follows: 90-95% of alumina powder, 4.5-9.5% of Guangxi white mud, and the balance of water and rho-Al 2 O 3 The weight percentage of the dispersant is 0.5-1.1% of the total weight of the raw materials; the matrix consists of andalusite, alumina powder, aluminum powder, silicon carbide fibers and a dispersing agent, wherein the weight percentages of the raw materials are as follows: 80-90% of andalusite, 5-10% of alumina powder, 4-6% of aluminum powder and 1-4% of silicon carbide fiber, wherein the weight of the dispersing agent accounts for 0.5-1.1% of the total weight of the raw materials.
In the invention, the particle sizes of the alumina powder and the Guangxi white mud are 800 meshes.
The dispersing agent is sodium tripolyphosphate and/or sodium hexametaphosphate.
The preparation method of the high-strength composite ceramic wear-resistant lining comprises the following steps: mixing raw materials of andalusite, alumina powder, silicon carbide fibers and a dispersing agent of a matrix, putting into a ball mill for grinding, then dividing the mixture into two equal parts, adding the balance of aluminum powder into one part, loading the raw materials without the aluminum powder into a mould prepared in advance, and pressing to form a prefabricated part A;
step two, mixing the raw materials of the wear-resistant body, putting the mixture into a ball mill for grinding to 2000 meshes, adding the mixture into a press, vacuumizing, and forming a prefabricated member B;
placing the prefabricated member B outside the prefabricated member A, smelting the raw material added with aluminum powder into a semi-solid state, filling the semi-solid state between the prefabricated member A and the prefabricated member B, cooling, drying at 500-600 ℃ to discharge water, and sintering at 1500-1600 ℃ to obtain the prefabricated member.
The wear-resistant body comprises: addition of white mudLess amount of rho-Al combined by hydration 2 O 3 Supplementing main chemical components of the white mud: al (Al) 2 O 3 18%、SiO 2 72%、K 2 O 5.7%、Na 2 O 0.11%、Fe 2 O 3 0.7 percent of the composite material is compounded with the white mud, thereby playing a role in enhancing the superimposed green body and being beneficial to smoothly removing the mold core.
ρ-Al 2 O 3 Is hydrated and combined, and is calcined to form alpha-Al 2 O 3 No impurity is brought in, and the high temperature performance of the prefabricated member is not affected.
ρ-Al 2 O 3 After hydration, chemical bonding water is generated, and the chemical bonding water can be completely removed at 500-600 ℃. Gel is generated in the hydration process, so that the stress generated in the heating and cooling process of the material is reduced below a grain boundary, and the strength and cracking resistance of the material are improved.
In the invention, the white mud can form a certain low-temperature liquid phase to promote the sintering of the alumina powder, and the part of free SiO in the white mud 2 With Al in the raw material 2 O 3 The powder reacts to generate needle-shaped secondary mullite which is uniformly distributed in the whole product to play a role in toughening particles. The invention has the advantages of main crystal phase corundum, secondary crystal phase mullite and a small amount of glass phase.
The heat conductivity of the wear-resistant body is about 1.22w/m.k, the temperature of the outer surface of a used part is lower, the volume density is more than 3.0, the load softening temperature is 1260 ℃, the Mohs hardness is 7-8, and the abrasion is about 0.3 per mill/h.
Mainly adopts alumina powder 90-95%, guangxi white mud 4.5-9.5% for mixed firing, white mud and a small amount of rho-Al 2 O 3 Can be used as an adhesive for toughening the alumina material without adding any binding agent.
In the matrix of the invention: al (Al) 2 [SiO 4 ]O is the main mineral of andalusite raw material, and mullite Al is generated when heating is used 2 O 3 ·2SiO 2 And high silica SiO 2 And (3) a glass phase. Andalusite is decomposed into mullite and high silica glass, the mullite forms a network structure, part of the high silica glass migrates from inside to outside of particles, a plurality of micropores are reserved, the micropores can buffer thermal stress, and the expansion and the part of cracks are preventedThe silica glass which is remained in the particles also has the function of buffering heat stress, and the silica glass also has the function of repairing bonding thermal shock cracks.
The mullite reaction of andalusite can be accompanied by about 6 percent of expansion, so that the compression during the pressure creep can be counteracted; free SiO produced 2 The mullite particles migrate out of andalusite particles and can react with the added alumina powder and the alumina powder in the wear-resistant body to generate mullite, and the volume expansion is accompanied, so that the compression during pressure creep can be counteracted, and the generated mullite staggered network structure is beneficial to creep resistance.
The deflection and stopping effect of the silicon carbide fiber on the internal cracks of the matrix prevent the cracks from growing and growing to form a netlike microcrack structure, and effectively improve the thermal shock resistance and fracture toughness of the product.
The invention utilizes the matrix to wrap the grinding body, (1) improves the impact resistance and wear resistance, adapts to the production condition of high smelting strength to the greatest extent, prolongs the service life by more than three times, reduces the maintenance frequency and ensures the production continuity of equipment. (2) Not only has wear resistance, but also has thermal shock resistance and creep resistance.
Description of the embodiments
The high-strength composite ceramic wear-resistant lining comprises a lining body, wherein the lining body is a prefabricated body with a male-female interface, the prefabricated body consists of a matrix and a wear-resistant body wrapped outside the matrix, and the wear-resistant body consists of alumina powder, guangxi white mud, water and rho-Al 2 O 3 And a dispersing agent, wherein the weight percentages of the raw materials are as follows: 90-95% of alumina powder, 4.5-9.5% of Guangxi white mud, and the balance of water and rho-Al 2 O 3 The weight percentage of the dispersant is 0.5-1.1% of the total weight of the raw materials; the matrix consists of andalusite, alumina powder, aluminum powder, silicon carbide fibers and a dispersing agent, wherein the weight percentages of the raw materials are as follows: 80-90% of andalusite, 5-10% of alumina powder, 4-6% of aluminum powder and 1-4% of silicon carbide fiber, wherein the weight of the dispersing agent accounts for 0.5-1.1% of the total weight of the raw materials.
Examples
The high-strength composite ceramic wear-resisting lining includes lining body which is prefabricated body with male and female interfacesThe prefabricated body consists of a matrix and a wear-resistant body wrapped outside the matrix. The wear-resistant body consists of 95 percent of alumina powder, 4.3 percent of Guangxi white mud, 0.2 percent of water and 0.5 percent of rho-Al 2 O 3 The composition is as follows: sodium tripolyphosphate, 0.56%; sodium hexametaphosphate, 0.5%. The matrix consists of 90% andalusite, 5% alumina powder, 4% aluminum powder and 1% silicon carbide fiber, and the following components are added: sodium tripolyphosphate, 0.56%; sodium hexametaphosphate, 0.5%.
The preparation method of the high-strength composite ceramic wear-resistant lining comprises the following steps:
mixing raw materials of andalusite, alumina powder, silicon carbide fibers and a dispersing agent of a matrix, putting into a ball mill for grinding, then dividing the mixture into two equal parts, adding the balance of aluminum powder into one part, loading the raw materials without the aluminum powder into a mould prepared in advance, and pressing to form a prefabricated part A;
step two, mixing the raw materials of the wear-resistant body, putting the mixture into a ball mill for grinding to 2000 meshes, adding the mixture into a press, vacuumizing, and forming a prefabricated member B;
and thirdly, placing the prefabricated member B outside the prefabricated member A, smelting the raw material added with aluminum powder into a semi-solid state, filling the semi-solid state between the prefabricated member A and the prefabricated member B, cooling, drying at 600 ℃, discharging water, and sintering at 1500 ℃ to obtain the prefabricated member. The thermal conductivity of the wear-resistant body is 1.26w/m.k, and the abrasion is 0.22 per mill/h.
Examples
The high-strength composite ceramic wear-resistant lining comprises a lining body, wherein the lining body is a prefabricated body with a male-female interface, and the prefabricated body consists of a base body and a wear-resistant body wrapped outside the base body. The wear-resistant body consists of 90 percent of alumina powder, 9.5 percent of Guangxi white mud, 0.2 percent of water and 0.3 percent of rho-Al 2 O 3 The composition is as follows: sodium tripolyphosphate, 0.5%; sodium hexametaphosphate, 0.45%. The matrix consists of 82% andalusite, 10% alumina powder, 4% aluminum powder and 4% silicon carbide fiber, and the following components are added: sodium tripolyphosphate, 0.5%; sodium hexametaphosphate, 0.45%.
The preparation method of the high-strength composite ceramic wear-resistant lining comprises the following steps:
mixing raw materials of andalusite, alumina powder, silicon carbide fibers and a dispersing agent of a matrix, putting into a ball mill for grinding, then uniformly dividing into two equal parts, adding aluminum powder into one part, loading raw materials without the aluminum powder into a mould prepared in advance, and pressing to form a prefabricated part A;
step two, mixing the raw materials of the wear-resistant body, putting the mixture into a ball mill for grinding to 2000 meshes, adding the mixture into a press, vacuumizing, and forming a prefabricated member B;
and thirdly, placing the prefabricated member B outside the prefabricated member A, smelting the raw material added with aluminum powder into a semi-solid state, filling the semi-solid state between the prefabricated member A and the prefabricated member B, cooling, drying at 580 ℃, discharging water, and sintering at 1600 ℃ to obtain the prefabricated member. The thermal conductivity of the wear-resistant body is 1.24w/m.k, and the abrasion is 0.21 per mill/h.
Examples
The high-strength composite ceramic wear-resistant lining comprises a lining body, wherein the lining body is a prefabricated body with a male-female interface, and the prefabricated body consists of a base body and a wear-resistant body wrapped outside the base body. The wear-resistant body consists of 94% of alumina powder, 5.5% of Guangxi white mud, 0.3% of water and 0.2% of rho-Al 2 O 3 The composition is as follows: sodium hexametaphosphate, 0.6%. The matrix consists of 86% andalusite, 6% alumina powder, 6% aluminum powder and 2% silicon carbide fiber, and the following components are added: sodium tripolyphosphate 1.1%.
The preparation method of the high-strength composite ceramic wear-resistant lining comprises the following steps:
mixing raw materials of andalusite, alumina powder, silicon carbide fibers and a dispersing agent of a matrix, putting into a ball mill for grinding, then uniformly dividing into two equal parts, adding aluminum powder into one part, loading raw materials without the aluminum powder into a mould prepared in advance, and pressing to form a prefabricated part A;
step two, mixing the raw materials of the wear-resistant body, putting the mixture into a ball mill for grinding to 2000 meshes, adding the mixture into a press, vacuumizing, and forming a prefabricated member B;
and thirdly, placing the prefabricated member B outside the prefabricated member A, smelting the raw material added with aluminum powder into a semi-solid state, filling the semi-solid state between the prefabricated member A and the prefabricated member B, cooling, drying at 500 ℃, discharging water, and sintering at 1560 ℃ to obtain the prefabricated member. The thermal conductivity of the wear-resistant body is 1.25w/m.k, and the abrasion is 0.21 per mill/h.
The prefabricated part can resist the temperature of 300-450 ℃ and the thickness of 1/4 of that of the wear-resistant castable, so that the load of the bin body can be relatively reduced; meets the requirements of the pre-iron system on wear-resistant, high-temperature-resistant and impact-resistant materials, and reduces maintenance frequency.
Claims (1)
1. The preparation method of the high-strength composite ceramic wear-resistant lining is characterized by comprising the following steps of: the high-strength composite ceramic wear-resistant lining comprises a lining body, wherein the lining body is a prefabricated body with a male-female interface, the prefabricated body consists of a matrix and a wear-resistant body wrapped outside the matrix, and the wear-resistant body consists of alumina powder, guangxi white mud, water and rho-Al 2 O 3 And a dispersing agent, wherein the weight percentages of the raw materials are as follows: 90-95% of alumina powder, 4.5-9.5% of Guangxi white mud, and the balance of water and rho-Al 2 O 3 The weight percentage of the dispersant is 0.5-1.1% of the total weight of the raw materials; the matrix consists of andalusite, alumina powder, aluminum powder, silicon carbide fibers and a dispersing agent, wherein the weight percentages of the raw materials are as follows: 80-90% of andalusite, 5-10% of alumina powder, 4-6% of aluminum powder and 1-4% of silicon carbide fiber, wherein the weight of the dispersing agent accounts for 0.5-1.1% of the total weight of the raw materials; the particle sizes of the alumina powder and the Guangxi white mud are 800 meshes; the dispersing agent is sodium tripolyphosphate and/or sodium hexametaphosphate; the preparation method comprises the following steps:
mixing raw materials of andalusite, alumina powder, silicon carbide fibers and a dispersing agent of a matrix, putting into a ball mill for grinding, then dividing the mixture into two equal parts, adding the balance of aluminum powder into one part, loading the raw materials without the aluminum powder into a mould prepared in advance, and pressing to form a prefabricated part A;
step two, mixing the raw materials of the wear-resistant body, putting the mixture into a ball mill for grinding to 2000 meshes, adding the mixture into a press, vacuumizing, and forming a prefabricated member B;
placing the prefabricated member B outside the prefabricated member A, smelting the raw material added with aluminum powder into a semi-solid state, filling the semi-solid state between the prefabricated member A and the prefabricated member B, cooling, drying at 500-600 ℃ to discharge water, and sintering at 1500-1600 ℃ to obtain the prefabricated member.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0410601A2 (en) * | 1989-07-28 | 1991-01-30 | Foseco International Limited | Composite ceramic material |
| JPH0388787A (en) * | 1989-08-30 | 1991-04-15 | Kikusui Kagaku Kogyo Kk | Porous refractory material |
| JPH06234574A (en) * | 1993-02-08 | 1994-08-23 | Ngk Insulators Ltd | Monolithic refractory for burner nozzle |
| CN101152983A (en) * | 2006-09-29 | 2008-04-02 | 阮克胜 | Flame-proof pouring material for hydroted alumina gas suspending roasting furnace furnace liner |
| CN101172847A (en) * | 2007-09-30 | 2008-05-07 | 巩义市好运祥耐材有限公司 | Pouring material for producing high-temperature ceramic abrasion-proof lining body |
| CN102503466A (en) * | 2011-10-25 | 2012-06-20 | 浙江锦诚耐火材料有限公司 | Andalusite self-flow castable |
| CN103143699A (en) * | 2013-03-07 | 2013-06-12 | 南通高欣金属陶瓷复合材料有限公司 | Composite reinforced wear-resistant part of metal-ceramic prefabricated member and manufacturing method of composite reinforced wear-resistant part |
| CN203778139U (en) * | 2014-01-02 | 2014-08-20 | 洛阳鹏飞耐磨材料股份有限公司 | Metal-based ceramic reinforcement body of millstone of vertical mill |
| CN105149875A (en) * | 2015-08-28 | 2015-12-16 | 南通高欣耐磨科技股份有限公司 | Method for manufacturing low-cost and high-wear-resistance ceramal composite liner plate |
| JP2016165888A (en) * | 2015-03-03 | 2016-09-15 | 一般財団法人ファインセラミックスセンター | Laminated structure |
| CN209904123U (en) * | 2019-03-01 | 2020-01-07 | 徐州瑞厚矿山机械有限公司 | Novel wear-resistant lining plate |
| CN114230316A (en) * | 2021-12-28 | 2022-03-25 | 河南华宇新材料有限公司 | Composite material for blast furnace lining and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9085991B2 (en) * | 2009-11-06 | 2015-07-21 | Honeywell International Inc. | Protective coatings for ceramic matrix composite substrates and methods for improving the wear resistance thereof and coated articles produced therefrom |
-
2022
- 2022-06-17 CN CN202210683705.2A patent/CN114890007B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0410601A2 (en) * | 1989-07-28 | 1991-01-30 | Foseco International Limited | Composite ceramic material |
| JPH0388787A (en) * | 1989-08-30 | 1991-04-15 | Kikusui Kagaku Kogyo Kk | Porous refractory material |
| JPH06234574A (en) * | 1993-02-08 | 1994-08-23 | Ngk Insulators Ltd | Monolithic refractory for burner nozzle |
| CN101152983A (en) * | 2006-09-29 | 2008-04-02 | 阮克胜 | Flame-proof pouring material for hydroted alumina gas suspending roasting furnace furnace liner |
| CN101172847A (en) * | 2007-09-30 | 2008-05-07 | 巩义市好运祥耐材有限公司 | Pouring material for producing high-temperature ceramic abrasion-proof lining body |
| CN102503466A (en) * | 2011-10-25 | 2012-06-20 | 浙江锦诚耐火材料有限公司 | Andalusite self-flow castable |
| CN103143699A (en) * | 2013-03-07 | 2013-06-12 | 南通高欣金属陶瓷复合材料有限公司 | Composite reinforced wear-resistant part of metal-ceramic prefabricated member and manufacturing method of composite reinforced wear-resistant part |
| CN203778139U (en) * | 2014-01-02 | 2014-08-20 | 洛阳鹏飞耐磨材料股份有限公司 | Metal-based ceramic reinforcement body of millstone of vertical mill |
| JP2016165888A (en) * | 2015-03-03 | 2016-09-15 | 一般財団法人ファインセラミックスセンター | Laminated structure |
| CN105149875A (en) * | 2015-08-28 | 2015-12-16 | 南通高欣耐磨科技股份有限公司 | Method for manufacturing low-cost and high-wear-resistance ceramal composite liner plate |
| CN209904123U (en) * | 2019-03-01 | 2020-01-07 | 徐州瑞厚矿山机械有限公司 | Novel wear-resistant lining plate |
| CN114230316A (en) * | 2021-12-28 | 2022-03-25 | 河南华宇新材料有限公司 | Composite material for blast furnace lining and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 耐磨陶瓷涂料的性能研究;周婷;高里存;贾玉超;;硅酸盐通报(02);全文 * |
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