CN110078484A - A kind of corundum-mullite crucible and preparation method thereof - Google Patents
A kind of corundum-mullite crucible and preparation method thereof Download PDFInfo
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- CN110078484A CN110078484A CN201910412079.1A CN201910412079A CN110078484A CN 110078484 A CN110078484 A CN 110078484A CN 201910412079 A CN201910412079 A CN 201910412079A CN 110078484 A CN110078484 A CN 110078484A
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- 229910052863 mullite Inorganic materials 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000007767 bonding agent Substances 0.000 claims abstract description 30
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 238000000465 moulding Methods 0.000 claims abstract description 26
- 239000010432 diamond Substances 0.000 claims abstract description 22
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 18
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 13
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 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 11
- 239000003595 mist Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000010453 quartz Substances 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002689 soil Substances 0.000 claims abstract description 11
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 11
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 42
- 239000002002 slurry Substances 0.000 claims description 25
- 239000011265 semifinished product Substances 0.000 claims description 20
- 238000010304 firing Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 10
- 239000011812 mixed powder Substances 0.000 claims description 10
- 238000002791 soaking Methods 0.000 claims description 10
- 238000011068 loading method Methods 0.000 claims description 8
- 239000011236 particulate material Substances 0.000 claims description 8
- 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 8
- 239000011230 binding agent Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 230000035939 shock Effects 0.000 abstract description 8
- 239000000919 ceramic Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000011819 refractory material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 229910052602 gypsum Inorganic materials 0.000 abstract description 2
- 239000010440 gypsum Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000010348 incorporation Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 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 description 3
- 229910052845 zircon Inorganic materials 0.000 description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052571 earthenware Inorganic materials 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 244000215068 Acacia senegal Species 0.000 description 1
- 235000006491 Acacia senegal Nutrition 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—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
- C04B35/185—Mullite 3Al2O3-2SiO2
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- 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
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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
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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
- C04B2235/34—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
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- 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
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- 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
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- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Furnace Charging Or Discharging (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
A kind of corundum-mullite crucible and preparation method thereof, belongs to technical field of refractory materials.It is characterized in that, parts by weight of raw materials composition includes: 25 ~ 33 parts of 3 ~ 1mm plate diamond spar, 18 ~ 27 parts of 1 ~ 0mm plate diamond spar, 80 7 ~ 12 parts of mesh emergies, 320 6 ~ 12 parts of powder of mesh zirconium English, 240 6 ~ 14 parts of mesh sub-white corundums, 150 7 ~ 14 parts of mesh sillimanites, 180 1.5 ~ 5 parts of mesh Suzhou soils, Al2O33.5 ~ 6 parts of micro mist 370C, 200 3.8 ~ 5.8 parts of mesh quartz, 2 ~ 5 parts of bonding agent.The crucible thermal expansion coefficient of this corundum-mullite material is small, and acid-proof alkaline is good, good thermal shock stability, is the ideal material suitable for ceramic industry.Crucible uses gypsum moulding by casting, and production cost is small, and high-efficient, the performance and overall effect of product are excellent.
Description
Technical field
A kind of corundum-mullite crucible and preparation method thereof, belongs to technical field of refractory materials.
Background technique
Crucible is a kind of special firing fire resistive material product, to be constantly subjected to hot and cold impact in use process, need good
Good thermal shock resistance, current user is higher and higher using temperature requirement to crucible, and service life requires increasingly to grow, from status
Understand, highly desirable level has not been reached yet.Ceramic industry, which prepares frit and molten glaze process, need to use a kind of planform complexity,
The high funnel-form crucible of globality, the molten glaze crucible of ceramic industry is at high cost at present, and low efficiency, resistance to acid and alkali is poor, use process
In it is easy to crack, peel off, the problems such as service life is short.
Summary of the invention
The technical problem to be solved by the present invention is overcoming the deficiencies of the prior art and provide a kind of high volume density, low stomata
The good corundum-mullite crucible and preparation method thereof of rate, abrasion resistance and corrosion resistance.
The technical solution adopted by the present invention to solve the technical problems is: the corundum-mullite crucible, which is characterized in that former
Material parts by weight composition includes: 25 ~ 33 parts of 3 ~ 1mm plate diamond spar, and 18 ~ 27 parts of 1 ~ 0mm plate diamond spar, 80 7 ~ 12 parts of mesh emergies,
320 6 ~ 12 parts of powder of mesh zirconium English, 240 6 ~ 14 parts of mesh sub-white corundums, 150 7 ~ 14 parts of mesh sillimanites, 180 1.5 ~ 5 parts of mesh Suzhou soils,
Al2O33.5 ~ 6 parts of micro mist 370C, 200 3.8 ~ 5.8 parts of mesh quartz, 2 ~ 5 parts of bonding agent.
Zircon fine powder, which decomposes, generates zirconium oxide, while transformation of crystal generates volume expansion and forms micro-crack, slows down
Thermal stress is concentrated, and toughening is played the role of, and is conducive to improve thermal shock resistance.Sintering procedure is formed not in zircon matrix
Carry out stone particle, material can be made while having the good croop property of mullite material and the good thermal shock of zircon material steady
It is qualitative.
The described parts by weight of raw materials composition includes: 28 ~ 30 parts of 3 ~ 1mm plate diamond spar, and 20 ~ 24 parts of 1 ~ 0mm plate diamond spar, 80
10 parts of mesh emergy, 320 7 ~ 10 parts of powder of mesh zirconium English, 240 8 ~ 10 parts of mesh sub-white corundums, 150 8 ~ 10 parts of mesh sillimanites, 180 mesh Soviet Union
2 ~ 3 parts of state soil, Al2O35 parts of micro mist 370C, 5 parts, 3.15 parts of bonding agent of 200 mesh quartz.Preferred raw material proportioning has better
Croop property and thermal shock resistance.
The bonding agent is the compound of water of gum acacia and calgon 1.8 ~ 4.9:0.10 ~ 0.20 in mass ratio
Bonding agent.The use of preferred bonding agent can make the present invention obtain higher intensity.
A kind of preparation method of above-mentioned corundum-mullite crucible, it is characterised in that: preparation step are as follows:
1) fine powder is blended: first weighing the various raw materials of 150 purpose of < respectively according to the proportion, is packed into mixer-with conical screw stirring 20
Minute, it is stand-by to prepare mixed powder；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 4.5 min ~ 5.5min, and bonding agent is added and water carries out mixing, controls moisture 6% ~ 8%, molding slurry is made, mixes
Close 15 min of time ~ 20min；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 12h ~ 18h；After semi-finished product amendment, it is put in drying room in 30 DEG C ~ 110 DEG C dry 48h ~ 56h, it can
Loading of kiln firing；
5) it is burnt into: being fired under 1540 DEG C ~ 1560 DEG C of firing temperature, soaking time 6h ~ 8h.
The present invention produces refractory material using the gravity flow pouring method of forming, and using plaster cast, die manufacturing cost is lower.System
Standby slurry fluidity is good, and green compact quality is easy to control.Technique of the invention is produced particularly suitable for the crucible of inventive formulation
Product fully ensure that the performance of product.
Moisture 6.8% ~ 7.2% is controlled when mixing described in step 2.
Semi-finished product are demoulded to obtain in step 4) after 14h ~ 16h.
In drying room in 70 DEG C ~ 90 DEG C dry 48h ~ 50h after the amendment of semi-finished product described in step 4).
Firing described in step 4): firing under 1550 DEG C of firing temperature, soaking time 7h.
Under preferred preparation process, the properties of gained crucible are more excellent.
Compared with prior art, possessed beneficial effect of the invention is: the crucible heat of this corundum-mullite material is swollen
Swollen coefficient is small, stable chemical performance, and acid-proof alkaline is good, good thermal shock stability, is the ideal material suitable for ceramic industry.Earthenware
Crucible uses gypsum moulding by casting, and production cost is small, and high-efficient, the performance and overall effect of product are excellent.This corundum mullite rock earthenware
Crucible, it is that a kind of resistant to corrosion is high-quality advanced resistance to that product purity is high, principal crystalline phase content height, high temperature resistant, resistance to erosion, chemical stability are good
Fiery material；Not only there is corundum material high-temperature behavior, but also combine the thermal shock resistance strong point of mullite, have resistant to high temperatures well
Creep properties, high temperature mechanical strength is big, resistance to erosion, anti-thermal shock, and erosion-resisting characteristics is good, long service life, average using up to 100 furnaces
More than secondary.This corundum-mullite crucible wall is thin, and thermal stability is high, can use for a long time under extremely cold very hot severe environmental conditions,
In addition to being applied to ceramic industry, it is equally applicable for the fields such as smelting industry and powder high-temperature calcination.
Specific embodiment
The present invention will be further described combined with specific embodiments below, and wherein embodiment 1 is best implements.
Embodiment 1
1) by parts by weight of raw materials composition stock: 29 parts of 3 ~ 1mm plate diamond spar, 22 parts of 1 ~ 0mm plate diamond spar, 80 mesh emergies 10
Part, 320 8 parts of powder of mesh zirconium English, 240 9 parts of mesh sub-white corundums, 150 9 parts of mesh sillimanites, 180 2.5 parts of mesh Suzhou soils, Al2O3 micro mist
5 parts of 370C, 5 parts, 3.15 parts of bonding agent of 200 mesh quartz；Bonding agent is gummy water and calgon 3:0.15 in mass ratio
Combined binder；Will be dry-mixed in each fine powder raw material addition screw machine, it is spare that fine powder is blended in preparation；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 5min, and bonding agent is added and water carries out mixing, controls moisture 7%, molding slurry, incorporation time 17min is made；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 15h；After semi-finished product amendment, be put in drying room in 580 DEG C of dry 48h, can loading of kiln be burnt into；
5) it is burnt into: being fired under 1550 DEG C of firing temperature, soaking time 7h.
Embodiment 2
1) by parts by weight of raw materials composition stock: 28 parts of 3 ~ 1mm plate diamond spar, 24 parts of 1 ~ 0mm plate diamond spar, 80 mesh emergies 10
Part, 320 10 parts of powder of mesh zirconium English, 240 8 parts of mesh sub-white corundums, 150 10 parts of mesh sillimanites, 180 2 parts of mesh Suzhou soils, Al2O3Micro mist
5 parts of 370C, 5 parts, 3 parts of bonding agent of 200 mesh quartz；Bonding agent is gummy water and calgon 2.7:0.18 in mass ratio
Combined binder；Will be dry-mixed in each fine powder raw material addition screw machine, it is spare that fine powder is blended in preparation；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 4.7min, and bonding agent is added and water carries out mixing, controls moisture 7.2%, molding slurry, incorporation time is made
17min；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 16h；After semi-finished product amendment, be put in drying room in 70 DEG C of dry 50h, can loading of kiln be burnt into；
5) it is burnt into: being fired under 1550 DEG C of firing temperature, soaking time 6h.
Embodiment 3
1) by parts by weight of raw materials composition stock: 30 parts of 3 ~ 1mm plate diamond spar, 20 parts of 1 ~ 0mm plate diamond spar, 80 mesh emergies 10
Part, 320 7 parts of powder of mesh zirconium English, 240 10 parts of mesh sub-white corundums, 150 8 parts of mesh sillimanites, 180 3 parts of mesh Suzhou soils, Al2O3Micro mist
5 parts of 370C, 5 parts, 3.5 parts of bonding agent of 200 mesh quartz；Bonding agent is gummy water and calgon 4:0.12 in mass ratio
Combined binder；Will be dry-mixed in each fine powder raw material addition screw machine, it is spare that fine powder is blended in preparation；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 5.3min, and bonding agent is added and water carries out mixing, controls moisture 6.8%, molding slurry, incorporation time is made
18min；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 14h；After semi-finished product amendment, be put in drying room in 90 DEG C of dry 48h, can loading of kiln be burnt into；
5) it is burnt into: being fired under 1560 DEG C of firing temperature, soaking time 7h.
Embodiment 4
1) by parts by weight of raw materials composition stock: 25 parts of 3 ~ 1mm plate diamond spar, 27 parts of 1 ~ 0mm plate diamond spar, 80 7 parts of mesh emergies,
320 12 parts of powder of mesh zirconium English, 240 6 parts of mesh sub-white corundums, 150 14 parts of mesh sillimanites, 180 1.5 parts of mesh Suzhou soils, Al2O3Micro mist
6 parts of 370C, 3.8 parts, 5 parts of bonding agent of 200 mesh quartz；Bonding agent is gummy water and calgon 4.9:0.10 in mass ratio
Combined binder；Will be dry-mixed in each fine powder raw material addition screw machine, it is spare that fine powder is blended in preparation；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 5.5min, and bonding agent is added and water carries out mixing, controls moisture 8%, molding slurry, incorporation time 20min is made；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 12h；After semi-finished product amendment, be put in drying room in 50 DEG C of dry 56h, can loading of kiln be burnt into；
5) it is burnt into: being fired under 1560 DEG C of firing temperature, soaking time 6h.
Embodiment 5
1) by parts by weight of raw materials composition stock: 33 parts of 3 ~ 1mm plate diamond spar, 18 parts of 1 ~ 0mm plate diamond spar, 80 mesh emergies 12
Part, 320 6 parts of powder of mesh zirconium English, 240 14 parts of mesh sub-white corundums, 150 7 parts of mesh sillimanites, 180 5 parts of mesh Suzhou soils, Al2O3Micro mist
3.5 parts of 370C, 5.8 parts, 2 parts of bonding agent of 200 mesh quartz；Bonding agent is gummy water and calgon in mass ratio 1.8:
0.20 combined binder；Will be dry-mixed in each fine powder raw material addition screw machine, it is spare that fine powder is blended in preparation；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 4.5min, and bonding agent is added and water carries out mixing, controls moisture 6%, molding slurry, incorporation time 15min is made；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 18h；After semi-finished product amendment, be put in drying room in 150 DEG C of dry 48h, can loading of kiln be burnt into；
5) it is burnt into: being fired under 1540 DEG C of firing temperature, soaking time 8h.
Embodiment 6
1) by parts by weight of raw materials composition stock: 29 parts of 3 ~ 1mm plate diamond spar, 22 parts of 1 ~ 0mm plate diamond spar, 80 mesh emergies 10
Part, 320 8 parts of powder of mesh zirconium English, 240 9 parts of mesh sub-white corundums, 150 9 parts of mesh sillimanites, 180 2.5 parts of mesh Suzhou soils, Al2O3Micro mist
5 parts of 370C, 5 parts, 3.15 parts of bonding agent of 200 mesh quartz；Bonding agent is answering for gummy water and calgon 1:1 in mass ratio
Close bonding agent；Will be dry-mixed in each fine powder raw material addition screw machine, it is spare that fine powder is blended in preparation；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 5min, and bonding agent is added and water carries out mixing, controls moisture 8%, molding slurry, incorporation time 17min is made；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 15h；After semi-finished product amendment, be put in drying room in 580 DEG C of dry 48h, can loading of kiln be burnt into；
5) it is burnt into: being fired under 1550 DEG C of firing temperature, soaking time 8h.
The performance parameter of crucible obtained by embodiment is shown in Table 1.
Table 1
。
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.
Claims (8)
1. a kind of corundum-mullite crucible, which is characterized in that parts by weight of raw materials composition includes: 25 ~ 33 parts of 3 ~ 1mm plate diamond spar, and 1
18 ~ 27 parts of ~ 0mm plate diamond spar, 80 7 ~ 12 parts of mesh emergies, 320 6 ~ 12 parts of powder of mesh zirconium English, 240 6 ~ 14 parts of mesh sub-white corundums,
150 7 ~ 14 parts of mesh sillimanites, 180 1.5 ~ 5 parts of mesh Suzhou soils, Al2O33.5 ~ 6 parts of micro mist 370C, 200 3.8 ~ 5.8 parts of mesh quartz,
2 ~ 5 parts of bonding agent.
2. a kind of corundum-mullite crucible according to claim 1, it is characterised in that: the parts by weight of raw materials forms packet
It includes: 28 ~ 30 parts of 3 ~ 1mm plate diamond spar, 20 ~ 24 parts of 1 ~ 0mm plate diamond spar, 80 10 parts of mesh emergies, 320 mesh zirconium English powder 7 ~ 10
Part, 240 8 ~ 10 parts of mesh sub-white corundums, 150 8 ~ 10 parts of mesh sillimanites, 180 2 ~ 3 parts of mesh Suzhou soils, Al2O35 parts of micro mist 370C,
5 parts, 3.15 parts of bonding agent of 200 mesh quartz.
3. a kind of corundum-mullite crucible according to claim 1, it is characterised in that: the bonding agent is Arabic tree
The combined binder of glue, calgon 1.8 ~ 4.9:0.10 ~ 0.20 in mass ratio.
4. a kind of preparation method of the described in any item corundum-mullite crucibles of claim 1 ~ 3, it is characterised in that: preparation step
Are as follows:
1) fine powder is blended: first weighing the various raw materials of 150 purpose of < respectively according to the proportion, is packed into mixer-with conical screw stirring 20
Minute, it is stand-by to prepare mixed powder；
2) mixing: the mixing in double-planet power mixing and blending machine, by particulate material is first added, rear plus mixed powder sequence is added all
Raw material mixes 4.5 min ~ 5.5min, and bonding agent is added and water carries out mixing, controls moisture 6% ~ 8%, molding slurry is made, mixes
Close 15 min of time ~ 20min；
3) moulding by casting: forming model being put on a vibration table, shake table is started, and molding slurry is poured into forming model, side
Side casting is vibrated, until to fill model suitable for reading for slurry；
4) semi-finished product are demoulded to obtain after 12h ~ 18h；After semi-finished product amendment, it is put in drying room in 30 DEG C ~ 110 DEG C dry 48h ~ 56h, it can
Loading of kiln firing；
5) it is burnt into: being fired under 1540 DEG C ~ 1560 DEG C of firing temperature, soaking time 6h ~ 8h.
5. a kind of preparation method of corundum-mullite crucible according to claim 4, it is characterised in that: described in step 2
Mixing when control moisture 6.8% ~ 7.2%.
6. a kind of preparation method of corundum-mullite crucible according to claim 4, it is characterised in that: 14h in step 4) ~
Semi-finished product are demoulded to obtain after 16h.
7. a kind of preparation method of corundum-mullite crucible according to claim 4, it is characterised in that: described in step 4)
Semi-finished product amendment after in drying room in 70 DEG C ~ 90 DEG C dry 48h ~ 50h.
8. a kind of preparation method of corundum-mullite crucible according to claim 4, it is characterised in that: described in step 5)
Firing: fired under 1550 DEG C of firing temperature, soaking time 7h.
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| CN112658211A (en) * | 2020-12-08 | 2021-04-16 | 河北钢研德凯科技有限公司 | Single crystal high temperature alloy shell and preparation method thereof |
| CN112960973A (en) * | 2021-04-12 | 2021-06-15 | 张会友 | High-purity plate-shaped corundum crucible for vacuum melting of high-temperature alloy and preparation method thereof |
| CN113105219A (en) * | 2021-03-31 | 2021-07-13 | 中山市华山特种陶瓷有限公司 | Crucible and preparation method thereof |
| CN113526691A (en) * | 2021-07-23 | 2021-10-22 | 江苏荆溪环保设备有限公司 | Corundum microporous aerator and production method thereof |
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| CN113526691A (en) * | 2021-07-23 | 2021-10-22 | 江苏荆溪环保设备有限公司 | Corundum microporous aerator and production method thereof |
| CN114349484A (en) * | 2021-12-28 | 2022-04-15 | 江苏省陶瓷研究所有限公司 | Ceramic material for calcining lithium battery electrode material and preparation method thereof |
| CN114349484B (en) * | 2021-12-28 | 2023-08-08 | 江苏省陶瓷研究所有限公司 | Ceramic material for calcining electrode material of lithium battery and preparation method thereof |
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