CN106431445A - Medium alumina ceramic ball and preparation method thereof - Google Patents
Medium alumina ceramic ball and preparation method thereof Download PDFInfo
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- CN106431445A CN106431445A CN201610737771.8A CN201610737771A CN106431445A CN 106431445 A CN106431445 A CN 106431445A CN 201610737771 A CN201610737771 A CN 201610737771A CN 106431445 A CN106431445 A CN 106431445A
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- 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
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- 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
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- 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
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Abstract
The invention relates to the technical field of medium alumina ceramic ball formula, and particularly relates to a medium alumina ceramic ball and preparation method thereof. A medium alumina ceramic ball, is mainly prepared from 400-500 parts of low quality processed aluminum ore powder lot, 20-30 parts of kaolin, 20-30 parts of barite, 20-30 parts of dolomite, 10-20 parts of sodium potassium feldspar, 200-300 parts of return material, 300-400 parts of brick, 40-60 parts of calcium sulfate, 30-40 parts of mineral fiber, 10-15 parts of charcoal fiber and 40-60 parts of black earth, after the raw materials are mixed, a mixture is obtained, and the materials are processed. The medium alumina ceramic ball possesses an economical and rational formula of the raw materials, the ceramic balls prepared according to the formula has excellent mechanical force properties and chemical stabilities, and is worthy of being actively promoted.
Description
【Technical field】
The present invention relates to the formula technique field of middle aluminum porcelain ball is and in particular to a kind of middle aluminum porcelain ball and preparation method thereof.
【Background technology】
It is known that the species containing aluminum porcelain ball is a lot, there are common porcelain ball containing aluminum, middle aluminum porcelain ball, high alumina porcelain ball, active oxidation
Aluminum porcelain ball, inert alumina porcelain ball etc., they not only have preferable intensity, wearability, acid and alkali-resistance and corrosion, and nontoxic,
Tasteless and have purification, absorption, catalysis protection and desiccation, can be used for chemical industry, petrochemical industry, chemical fertilizer, pharmacy, smelting, building materials, combustion
The industry such as gas and environmental protection, purposes is widely.With the increase of porcelain ball aluminum content, middle aluminum porcelain ball, activated alumina porcelain and high alumina
The feature that the intensity that porcelain ball has is higher, wearability more preferable, density is bigger, using effect is also quite obvious, and therefore they are upper
State and in industry, obtained good popularization and application, the demand of middle aluminum porcelain ball, activated alumina porcelain ball and high alumina porcelain ball is also
Increasing, wherein the middle aluminum porcelain ball of high-quality and the demand of high alumina porcelain ball account for major part again.Middle aluminum porcelain ball Al2O3 content one
As be 60-70%, high alumina porcelain ball Al2O3 content generally more than 90%, and the middle aluminum porcelain ball Al2O3 content of high-quality is 65%
More than.High due to containing Al2O3 amount in middle aluminum porcelain ball and high alumina porcelain ball at present, manufacturer mostly adopts Al2O3 content in 75-
80% wrought aluminium ore deposit to produce middle aluminum porcelain ball and high alumina porcelain ball as primary raw material, with middle aluminum porcelain ball and high alumina porcelain ball demand
Increasingly increase, for produce middle aluminum porcelain ball and the raw material wrought aluminium ore deposit of high alumina porcelain ball, particularly high-quality wrought aluminium ore deposit increasingly
Rare, cause wrought aluminium ore deposit supply shortage, price also rising all the way, so that the Production requirement amount of high alumina porcelain ball is restricted, and
And make the Production requirement amount of middle aluminum porcelain ball also receive large effect.Without middle quality wrought aluminium ore deposit and high-quality wrought aluminium ore deposit
In the case of, it is primary raw material and when arranging in pairs or groups with existing adjuvant only with low-quality wrought aluminium ore deposit, middle aluminum porcelain ball manufacturing process
Method is unable to reach high alumina porcelain ball performance, also differs larger compared with middle aluminum porcelain ball, the performance of the middle aluminum porcelain of special high-quality, pressure
Process processed is difficult to make ball-billet shape become, difficult control of temperature when burning till, and thereby results in enterprise and produces difficulty, product quality fluctuation is big,
Not only increase the production cost of enterprise, and have an effect on the using effect of product.
【Content of the invention】
The goal of the invention of the present invention is：For above-mentioned problem, provide a kind of middle aluminum porcelain ball and preparation method thereof.
The present invention has the composition of raw materials of economical rationality, from the immixture of inferior wrought aluminium ore deposit and other adjuvants, can prepare
Go out the middle aluminum porcelain ball comparing favourably with high alumina porcelain ball premium properties, factory can produce the higher product of a large amount of cost performances.
To achieve these goals, the technical solution used in the present invention is as follows：A kind of middle aluminum porcelain ball, mainly by following weight
The raw material of part is made：Low-quality wrought aluminium breeze material 400-500 part, Kaolin 20-30 part, barite 20-30 part, dolomite 20-30
Part, potassium albite 10-20 part, withdrawal of currency from circulation material 200-300 part, fragment of brick 300-400 part, calcium sulfate 40-60 part, mineral fibres 30-40
Part, carbon fiber 10-15 part and black earth ore deposit 40-60 part.
Further, a kind of middle aluminum porcelain ball, is mainly made up of the raw material of following weight portion：Low-quality wrought aluminium breeze material 410-
490 parts, Kaolin 21-29 part, barite 21-29 part, dolomite 21-29 part, potassium albite 11-19 part, steam again material 210-290
Part, fragment of brick 310-390 part, calcium sulfate 45-55 part, mineral fibres 31-39 part, carbon fiber 11-14 part and black earth ore deposit 45-55 part.
Further, a kind of middle aluminum porcelain ball, is mainly made up of the raw material of following weight portion：450 parts of low-quality wrought aluminium breeze material,
25 parts of Kaolin, 25 parts of barite, 25 parts of dolomite, 15 parts of potassium albite, 280 parts of withdrawal of currency from circulation material, 350 parts of fragment of brick, calcium sulfate 50
Part, 35 parts of mineral fibres, 13 parts of carbon fiber and 50 parts of black earth ore deposit.
Further, the salic mass percent of described low-quality wrought aluminium breeze material institute is 50%-55%.
Further, a kind of manufacture method of middle aluminum porcelain ball, comprises the following steps：
A, the process of low-quality wrought aluminium ore deposit：By low-quality wrought aluminium ore deposit through pulverizing and sieving, obtain low-quality wrought aluminium breeze material；
B, batch mixing and remove ferrum：By described low-quality wrought aluminium breeze material, Kaolin, barite, dolomite, potassium albite, the withdrawal of currency from circulation
Material, fragment of brick, calcium sulfate, mineral fibres, carbon fiber and black earth ore deposit weigh, after be mixed to get mixture；Mixture is put into ball milling
Roughly ground in machine, after 400 eye mesh screens crossed by the powder of corase grind gained, then move into and carry out in pond washing except ferrum for the first time；Will be except ferrum
Mixture afterwards is placed again into being refined in ball mill, and 700 eye mesh screens crossed by the material of fine grinding gained, then move into Chi Zhongjin again
Row washes for the second time except ferrum, that is, make slurry；
C, make powder：The slurry of step b gained is spray-dried, after being dried, crosses 500 mesh sieves, that is, wrought aluminium ore deposit is obtained and is combined
Pelletizing；The dust producing in spray-drying process is obtained dust granules through process, and by described dust granules and porcelain ball
Particle by weight 1:10 mixing, are obtained steaming again material, and are recycled to step b by blood circulation；
D, molding：By described wrought aluminium ore deposit compound powder at a temperature of 80 DEG C be dried, after put in mould, and
In the press of 30MPa by air pressure and hydraulic pressure collective effect compressing, prepared semi-finished product ball base；
E, burn till：Described semi-finished product ball base is dried 40-48h at a temperature of 80-150 DEG C, after put in sintering furnace；Adjust
Section sintering temperature rises to 1300 DEG C with the climbing speed of 100 DEG C/h from room temperature, then is incubated 4-5h；Then pass sequentially through air-cooled
The mode of 0.5h and naturally cold 2.5h cools down, that is, aluminum porcelain ball finished product in being obtained.
Further, in described step a low-quality wrought aluminium ore deposit priority through jaw crushing with to roller pulverization process, and cross 200
Mesh sieve.
Further, described step c is spray-dried the 3%-4% that need to control the content of slurry moisture for slurry gross weight.
Further, dust granules described in described step c are processed and obtain through whirlwind and Water spray cleaner unit by dust.
Further, the sintering furnace inner surface setting used in described step e has nano plate.
In sum, due to employing technique scheme, the invention has the beneficial effects as follows：
1. the present invention is middle aluminum porcelain ball formula system, and the raw material being adopted is less and low cost.Low-quality wrought aluminium breeze material is
Low-quality raw materials in porcelain ball raw material, the present invention has widened selection range to manufacture porcelain ball from low-quality raw materials, can strengthen porcelain ball
Physicochemical characteristicss, also can reduce the production cost of 10-15%, reach efficient energy-saving, be conducive to economic heath sustainable development.
In formula, the combination of Kaolin, barite and dolomite can reduce abrasion loss, makes porcelain ball firmer, is difficult to be worn；And also have
There are the physicochemical properties such as good plasticity and fire resistance, plasticizer migration can be prevented.The combination of fragment of brick, potassium albite and black earth ore deposit
Porcelain ball is made to have good mechanical property, excellent fire-retardant, heat resistance, radiation resistance, durability and corrosion resistance.Sulphuric acid
The addition of calcium, carbon fiber and mineral fibres, makes porcelain ball have many premium properties；The axial strength of carbon fiber and modulus are high, close
Spend low, higher than performance, no creep, superhigh temperature resistant under non-oxidizing atmosphere, fatigue durability is good, specific heat and electric conductivity between nonmetallic and
Between metal, thermal coefficient of expansion is little and has anisotropy, good corrosion resistance；The mixing of carbon fiber, calcium sulfate and mineral fibres,
Embody when grinding and have the advantages that hardness is high, bulk density is big, corrosion-resistant, its crush efficiency and wear-resistant be significantly better than general
Logical ballstone or natural cobblestone, have the high temperature resistant, high pressure of inert ceramic balls and the characteristic of high mechanical properties again, and cost performance is high.Return
Cage material is by the dust granules in step b and porcelain ball particle by weight 1:10 are mixed to get, and porcelain ball material has density, machinery
Intensity is high, the good feature of anti-wear performance；The ripe porcelain ball product of processing is equipped with described dust granules and melts down processing again, you can as
Support and protect the not high active catalyst of intensity, in the presence of dual porcelain ball material, just may be made with high temperature high voltage resistant,
Water absorption rate is low, the product of stable chemical performance feature, then make product be amenable to the corrosion of acid, alkali and other organic solvent, and energy
Stand the temperature change occurring in production process.Furthermore, useless porcelain ball can recycle, and effectively utilize raw material, reduce
Cost.
2. present invention material based on low-quality wrought aluminium breeze material and withdrawal of currency from circulation material, is equipped with fragment of brick, potassium albite, black life
Ore deposit, Kaolin, barite sulfate calcium, carbon fiber, mineral fibres and dolomite, can improve rigidity, hardness and the pressure resistance of porcelain ball
Degree, reduces water absorption rate, abrasion loss and voidage, reduces reinforcement cost；It is in lead that the reasonable employment of raw material makes porcelain ball color
System, and there is preferable ceramic performance.Therefore, using the formula of the present invention, can prepare and high alumina porcelain ball premium properties phase
The middle aluminum porcelain ball matching in excellence or beauty, can reduce the cost pressure that the shortage of high-quality wrought aluminium ore deposit raw material brings again, and factory can use inferior
Wrought aluminium ore deposit produces the higher product of a large amount of cost performances.
【Specific embodiment】
The following examples can help those skilled in the art to be more completely understood by the present invention, but cannot be with any
Mode limits the present invention.
A kind of middle aluminum porcelain ball, mainly by low-quality wrought aluminium breeze material, Kaolin, barite, dolomite, potassium albite, the withdrawal of currency from circulation
Material, fragment of brick, calcium sulfate, mineral fibres, carbon fiber and black earth ore deposit are made.Wherein, in embodiment 1-5 above raw material concrete content
It is shown in Table 1.
The raw material of aluminum porcelain ball and content (unit in table 1 embodiment 1-5：kg)
| Raw material | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Low-quality wrought aluminium breeze material | 400 | 410 | 450 | 490 | 500 |
| Kaolin | 20 | 21 | 25 | 29 | 30 |
| Barite | 20 | 21 | 25 | 29 | 30 |
| Dolomite | 20 | 21 | 25 | 29 | 30 |
| Potassium albite | 10 | 11 | 15 | 19 | 20 |
| Steam again material | 200 | 210 | 280 | 290 | 300 |
| Fragment of brick | 300 | 310 | 350 | 390 | 400 |
| Black earth ore deposit | 40 | 45 | 50 | 55 | 60 |
| Calcium sulfate | 40 | 45 | 50 | 55 | 60 |
| Carbon fiber | 10 | 11 | 13 | 14 | 15 |
| Mineral fibres | 30 | 31 | 35 | 39 | 40 |
The production technology all same of the middle aluminum porcelain ball of embodiment 1-5, described production technology includes following methods and is made：
A kind of production technology of middle aluminum porcelain ball, comprises the following steps：
A, the process of low-quality wrought aluminium ore deposit：By salic mass percent be 50%-55% low-quality wrought aluminium breeze
Material is successively through jaw crushing with to roller pulverization process, and crosses 200 mesh sieves, obtains low-quality wrought aluminium breeze material；
B, batch mixing and remove ferrum：By described low-quality wrought aluminium breeze material, Kaolin, barite, dolomite, potassium albite, the withdrawal of currency from circulation
Material, fragment of brick, calcium sulfate, mineral fibres, carbon fiber and black earth ore deposit weigh, after be mixed to get mixture；Mixture is put into ball milling
Roughly ground in machine, after 400 eye mesh screens crossed by the powder of corase grind gained, then move into and carry out in pond washing except ferrum for the first time；Will be except ferrum
Mixture afterwards is placed again into being refined in ball mill, and 700 eye mesh screens crossed by the material of fine grinding gained, then move into Chi Zhongjin again
Row washes for the second time except ferrum, that is, make slurry；
C, make powder：The slurry of step c gained is spray-dried, is spray-dried the content that need to control slurry moisture for starching
The 3%-4% of material gross weight, crosses 500 mesh sieves after being dried, that is, wrought aluminium ore deposit compound powder is obtained；To produce in spray-drying process
Dust obtain dust granules through process, and by described dust granules and porcelain ball particle by weight 1:10 mixing, are returned
Cage material, and recycled to step b by blood circulation；Described dust granules are by dust through whirlwind and Water spray cleaner unit
Process and obtain.
D, molding：By described wrought aluminium ore deposit compound powder at a temperature of 80 DEG C be dried, after put in mould, and
In the press of 30MPa by air pressure and hydraulic pressure collective effect compressing, prepared semi-finished product ball base；
E, burn till：Described semi-finished product ball base is dried 40-48h at a temperature of 80-150 DEG C, after put in sintering furnace；Adjust
Section sintering temperature rises to 1300 DEG C with the climbing speed of 100 DEG C/h from room temperature, then is incubated 4-5h；Then pass sequentially through air-cooled
The mode of 0.5h and naturally cold 2.5h cools down, that is, aluminum porcelain ball finished product in being obtained.Described sintering furnace interior surface is provided with nano-plates
Block.
In the present invention, due to employing above-mentioned formula, in formula, raw material is collocated with each other, and performance complement is superimposed, and has length
Long mechanical characteristic.Ceramic material is that in engineering material, rigidity is best, hardness highest material, its hardness mostly 1500HV with
On, by the combination of above-mentioned formula, can project that porcelain ball is not oxidizable at high temperature, and acid, alkali, salt be had good anticorrosive
The good chemical stability of ability.
In the present invention, in addition to the effect of formula, ball milling and except carrying out between iron phase, you can so that rust is removed completely,
The elimination of irony will increase the electric property of porcelain piece, so that porcelain piece surface is not melted speckle and fusion hole, be conducive to quality of item.Spray dried
Dry control slurry moisture content is the 3%-4% of slurry gross weight, controls the suitable water yield to enable slurry to reach good being dried and imitates
Really, the voidage of product and water absorption rate all decrease.Spray drying can also make raw material form uniform wrought aluminium ore deposit compound
Powder, reduces the generation of dust granules, and so that product abrasion amount reduces.Sintering furnace interior surface is provided with nano-plates
Block, has good heat insulation effect, can increase in step e in 80-150 DEG C of the temperature retention time that is dried, and reduces by 1300 DEG C burn till
Time, be conducive to improving Mohs' hardness and comprcssive strength, energy saving.
In order to embody the present invention, there is the middle aluminum porcelain ball that water absorption rate is low, Mohs' hardness is high, wear away low advantage, laboratory pair
The middle aluminum porcelain ball that all embodiments of the invention are obtained has carried out performance detection, and test results of the present invention and test data refer to
Table 2；And with Patent No. 201110036768.0, notification number be 102180654A disclosed in utilization low-quality raw materials produce Gao Pin
In matter, the performance test data of the process of aluminum porcelain ball compares, the technique producing aluminum porcelain ball in high-quality using low-quality raw materials
The performance test data of method refers to table 3.
The performance test data of aluminum porcelain ball in table 2 embodiment 1-5
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Proportion (g/cm3) | 3.03 | 3.05 | 3.10 | 3.11 | 3.12 |
| Water absorption rate (%) | 0.1 | 0.11 | 0.16 | 0.13 | 0.16 |
| Abrasion (‰) | 0.23 | 0.25 | 0.26 | 0.25 | 0.26 |
| Mohs' hardness (Kgf/cm2Mpa) | 9.4 | 9.3 | 9.2 | 9.3 | 9 |
| Comprcssive strength (MPa) | 18.6 | 18.1 | 18.4 | 18.6 | 18.5 |
| Voidage (%) | 43 | 45 | 46 | 47 | 47 |
Table 3 utilizes low-quality raw materials to produce the performance test data of aluminum porcelain ball in high-quality
By the contrast of table 2 and table 3, first, the physical property of middle aluminum porcelain ball obtained by embodiment of the present invention 1-5 is good,
Water absorption rate of the present invention and the abrasion all slightly below water absorption rate of comparative example and abrasion；Water absorption rate is low, wear away the low guarantor being conducive to product
Deposit and extend the life-span, it is loosening that porcelain ball will make porcelain ball produce because adsorbing too many moisture；Proportion, Mohs' hardness and pressure resistance
Degree is above proportion, Mohs' hardness and the comprcssive strength of comparative example；Proportion of the present invention, hardness and comprcssive strength are all higher, explanation
The porcelain ball of the present invention is not easy to foaming, and hardness is big, produces and is not easy to crack when clashing into.Finally, voidage of the present invention then with right
The voidage of ratio remains basically stable.So the middle aluminum porcelain ball obtained by embodiment of the present invention 1-5 compares comparative example, its physical property
Meet national standard, better performances, and, water absorption rate substantially to reduce with abrasion.
The present invention is by carrying out and sintering furnace interior surface with except the alternate of ferrum to the pulverization process of low-quality wrought aluminium ore deposit, ball milling
The setting of nano plate, improves middle aluminum porcelain ball and expends the energy in process of production in a large number, in the strict time controlling technique and
After order, all raw materials will be enable to reach uniformly in mixing, so that the middle aluminum porcelain ball hardness being obtained tends to be steady and all
Up to standard；Comprcssive strength is also superior to comparative example.
Especially, the present invention is by low-quality wrought aluminium breeze material, Kaolin, barite, dolomite, potassium albite, withdrawal of currency from circulation material, brick
Block, calcium sulfate, carbon fiber, mineral fibres and 11 kinds of raw materials of black earth ore deposit are prepared from, and comparative example is by wrought aluminium breeze material, water aluminum
Stone, clay, efficient solvent component and diluent are prepared from, and raw material is 5 kinds, but wherein also need to the middle aluminum porcelain of quality in addition
Ball, to improve its performance, the middle aluminum porcelain ball cost intensive of middle quality, does not have cost performance, is unfavorable for promoting.By above-mentioned contrast, this
Invention performance is better than the performance of comparative example, and therefore, the present invention compares comparative example, and its cost of material is low, and performance is good.The present invention is described
Formula can be lifted in aluminum porcelain ball physical property, be worthy to be popularized.
Described above is the detailed description for the preferable possible embodiments of the present invention, but embodiment is not limited to this
Bright patent claim, the equal change being completed under the technical spirit suggested by all present invention or modification change, all should belong to
In the covered the scope of the claims of the present invention.
Claims (9)
1. a kind of middle aluminum porcelain ball is it is characterised in that be mainly made up of the raw material of following weight portion：Low-quality wrought aluminium breeze material 400-
500 parts, Kaolin 20-30 part, barite 20-30 part, dolomite 20-30 part, potassium albite 10-20 part, steam again material 200-300
Part, fragment of brick 300-400 part, calcium sulfate 40-60 part, mineral fibres 30-40 part, carbon fiber 10-15 part and black earth ore deposit 40-60 part.
2. a kind of middle aluminum porcelain ball according to claim 1 is it is characterised in that be mainly made up of the raw material of following weight portion：
Low-quality wrought aluminium breeze material 410-490 part, Kaolin 21-29 part, barite 21-29 part, dolomite 21-29 part, potassium albite 11-
19 parts, steam again material 210-290 part, fragment of brick 310-390 part, calcium sulfate 45-55 part, mineral fibres 31-39 part, carbon fiber 11-14
Part and black earth ore deposit 45-55 part.
3. a kind of middle aluminum porcelain ball according to claim 2 is it is characterised in that be mainly made up of the raw material of following weight portion：
450 parts of low-quality wrought aluminium breeze material, 25 parts of Kaolin, 25 parts of barite, 25 parts of dolomite, 15 parts of potassium albite, withdrawal of currency from circulation material 280
Part, 350 parts of fragment of brick, 50 parts of calcium sulfate, 35 parts of mineral fibres, 13 parts of carbon fiber and 50 parts of black earth ore deposit.
4. a kind of middle aluminum porcelain ball according to claim 1 is it is characterised in that described low-quality wrought aluminium breeze material institute is salic
Mass percent be 50%-55%.
5. the manufacture method of a kind of middle aluminum porcelain ball according to any one of claim 1-4 is it is characterised in that include following walking
Suddenly：
A, the process of low-quality wrought aluminium ore deposit：By low-quality wrought aluminium ore deposit through pulverizing and sieving, obtain low-quality wrought aluminium breeze material；
B, batch mixing and remove ferrum：By described low-quality wrought aluminium breeze material, Kaolin, barite, dolomite, potassium albite, steam again material, brick
Block, calcium sulfate, mineral fibres, carbon fiber and black earth ore deposit weigh, after be mixed to get mixture；Mixture is put in ball mill
Row corase grind, after 400 eye mesh screens crossed by the powder of corase grind gained, then moves into and carries out in pond washing except ferrum for the first time；Will be mixed after ferrum
Compound is placed again into being refined in ball mill, and 700 eye mesh screens crossed by the material of fine grinding gained, then move into again and carry out second in pond
Secondary wash except ferrum, that is, make slurry；
C, make powder：The slurry of step b gained is spray-dried, after being dried, crosses 500 mesh sieves, that is, wrought aluminium ore deposit compound is obtained
Powder；The dust producing in spray-drying process is obtained dust granules through process, and by described dust granules and porcelain ball particle
By weight 1:10 mixing, are obtained steaming again material, and are recycled to step b by blood circulation；
D, molding：Described wrought aluminium ore deposit compound powder is dried at a temperature of 80 DEG C, after put in mould, and 30MPa's
In press by air pressure and hydraulic pressure collective effect compressing, prepared semi-finished product ball base；
E, burn till：Described semi-finished product ball base is dried 40-48h at a temperature of 80-150 DEG C, after put in sintering furnace；Adjust and burn
Junction temperature rises to 1300 DEG C with the climbing speed of 100 DEG C/h from room temperature, then is incubated 4-5h；Then pass sequentially through air-cooled 0.5h and
The mode of naturally cold 2.5h cools down, that is, aluminum porcelain ball finished product in being obtained.
6. a kind of manufacture method of middle aluminum porcelain ball according to claim 5 is it is characterised in that wrought aluminium ore deposit in described step a
Successively through jaw crushing with to roller pulverization process, and cross 200 mesh sieves.
7. a kind of manufacture method of middle aluminum porcelain ball according to claim 5 is it is characterised in that described step c is spray-dried
The 3%-4% for slurry gross weight for the content of slurry moisture need to be controlled.
8. a kind of manufacture method of middle aluminum porcelain ball according to claim 5 is it is characterised in that powder described in described step c
Dirt granule is processed and obtains through whirlwind and Water spray cleaner unit by dust.
9. a kind of manufacture method of middle aluminum porcelain ball according to claim 5 is it is characterised in that used in described step e
Sintering furnace inner surface setting have nano plate.
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| CN201610737771.8A CN106431445A (en) | 2016-08-26 | 2016-08-26 | Medium alumina ceramic ball and preparation method thereof |
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| CN201610737771.8A CN106431445A (en) | 2016-08-26 | 2016-08-26 | Medium alumina ceramic ball and preparation method thereof |
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| CN107986758A (en) * | 2017-12-27 | 2018-05-04 | 杨松 | One kind prepares the special high aluminium ball of kaolin calcination activation rotary furnace |
| CN108117404A (en) * | 2017-12-27 | 2018-06-05 | 杨松 | It is a kind of to prepare the special high aluminium ball application method of kaolin calcination activation rotary furnace |
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Application publication date: 20170222 |