CN101357843A - Alumina titanate ceramica lift tube preparation method - Google Patents
Alumina titanate ceramica lift tube preparation method Download PDFInfo
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- CN101357843A CN101357843A CNA2008101401121A CN200810140112A CN101357843A CN 101357843 A CN101357843 A CN 101357843A CN A2008101401121 A CNA2008101401121 A CN A2008101401121A CN 200810140112 A CN200810140112 A CN 200810140112A CN 101357843 A CN101357843 A CN 101357843A
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Abstract
The invention relates to a preparation method of ceramic materials; the raw materials used in the method comprises alumina powder, titanium oxide powder, synthetic material of aluminium titanate and stabilizing agents, wherein, the stabilizing agents comprise magnesium oxide, silica dioxide, ferric oxide, chromium dioxide and zirconium oxide. The conditions of the preparation process are as follows: firstly, the raw material and water carry out ball milling and pulping by a wet method; secondly, the slurry is granulated and dried into powder with the water content to be less than 2 percent; thirdly, isostatic pressing molding is carried out; fourthly, the powder is sintered into a lift tube of aluminium titanate ceramics under the conditions that the sintering temperature is 1,480 to 1,550 DEG C, the sintering time is 20 to 30 hours and the sintering atmosphere is oxidizing atmosphere; wherein, alumina powder, titanium oxide powder, stabilizing agents and water carry out ball milling and pulping by the wet method and granulation to prepare particle size, then the synthetic material of aluminium titanate is prepared by sintering. The product prepared by the method is characterized by low price, non-infiltration of alumina melt, no reaction, high intensity, strong thermal shock resistant capability, no slag during the using process, long service life, etc.
Description
Technical field:
The present invention relates to a kind of preparation method of stupalith, the alumina titanate ceramica lift tube of this method preparation mainly is applied to the key part on the air injection machine of producing car high-quality and safety structural part (for example: wheel hub, parts etc. travel) and engine structure spare (particularly automobile, motorcycle parts).
Background technology:
Alumina titanate ceramica lift tube is the key part that is used for making on the air injection machine Al-alloy products (particularly automobile, motorcycle parts).During Foundry Production, alumina titanate ceramica lift tube directly contacts (about 700 ℃ of temperature) with aluminium alloy solution, add aluminum solutions every 3-5 minute alumina titanate ceramica lift tube one time in the mold cavity, at the needs of the applied environment of alumina titanate ceramica lift tube harshness and serialization, automatic production, air injection machine is very strict to the quality and the performance requriements of alumina titanate ceramica lift tube.Require its erosion that not only has metallic solutions such as high temperature resistant, anti-aluminium alloy, and will have excellent heat shock resistance fatigue property, promptly in use do not fall slag, do not burst, long service life etc.
Traditional material that is used for low-pressure casting lift tube has cast iron riser pipe, stainless steel riser pipe, quartz-ceramics riser pipe etc.Wherein, cast iron, the stainless ceramic riser pipe corrosion of anti-aluminium property are poor, introduce iron contamination and make the aluminium casting downgrade easily in use aluminium liquid, and be no more than two days work-ing life; Though the work-ing life of quartz-ceramics riser pipe is longer than cast iron and stainless steel riser pipe life-span, but owing to there are problems such as crystallization, reduction, its life-span also has only tens days, causes frequently changing riser pipe, serialization and automatization that influence is produced, thereby increased operation and production cost virtually.
Along with high-tech development, external high performance ceramic lift tube has all turned to alumina titanate ceramica lift tube, and the ceramic lift tube of this kind material not only has with aluminum melt and advantage such as do not soak into, do not react; And compare with the quartz-ceramics riser pipe, have the intensity height, the anti-thermal shock ability is strong, does not in use fall outstanding features such as slag, long service life, can increase substantially the quality of foundry goods.Chinese patent discloses " a kind of preparation method of low-expansion aluminium titanates ceramic catheter " (publication number CN101117287), at first synthetic alumina titanate ceramics, after making powder, annotate the type that congeals into, burn till at last and make, the weight percent of the synthesis material of alumina titanate ceramics consists of: aluminium sesquioxide 37.18～53.1%, titanium oxide 32.82～46.9% and additive 0～30%; Wherein, the weight of additive consists of: mullite 0～30%, magnesium-aluminium spinel 0～30%, trichroite 0～40% and magnesium basic carbonate 0～100%.But whether the practical application of this technology can form industrialization, and how the effect of using makes discussion.
Summary of the invention
The present invention is for satisfying the demand of industry developments such as China's low-pressure casting industry and growing automobile, electronics, through technical study for many years, propose a kind of technology rationally, the preparation method of alumina titanate ceramica lift tube that technology maturation and product processed performance are high.
At present the aluminium titanates riser pipe is best a kind of of resistance to elevated temperatures in the low-expansion material, but also there are two big deadly defects in itself: the one, and the anisotropy of thermal expansivity own causes a large amount of tiny crack of its inner appearance, has reduced intensity significantly; The 2nd, easily decomposition loses its low bulk in 750 ℃ of-1300 ℃ of temperature ranges.But by adding stablizer, the method for controlling critical processing condition (as firing temperature) can overcome above shortcoming, makes it that be arranged long work-ing life.
By the introducing of suitable stablizer, not only can obtain the aluminium titanates of better heat stability, and can on the basis that keeps its low bulk, improve its mechanical property, thereby widen its Application Areas.In the sintering range of alumina titanate ceramics, suitable raising firing temperature or prolongation soaking time, good dynamic conditions is provided can for the lattice adjustment of aluminium titanates, the octahedron distortion degree in the aluminium titanates crystalline structure is descended, thermostability is improved.
Technical scheme can reduce " two step method ".The first step, earlier synthetic aluminium titanates synthetic material; In second step, utilize synthetic aluminium titanates raw material and chemical feedstocks to mate again and utilize compression moulding technology to carry out the preparation of alumina titanate ceramica lift tube.Specifically comprise:
(1) preparation of aluminium titanates synthetic material, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 38-64, titanium oxide powder 36-62 and stablizer 2-20, the stablizer here are magnesium oxide (MgO), silicon-dioxide (SiO
2), ferric oxide (Fe
2O
3) and chromium dioxide (CrO
2) in one or more combination; (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 80-110 weight part carries out wet ball grinding slurrying, and the ball milling time is 15-30 hour, goes out to grind test slurry particle diameter＜3.0 micron; It two is slurry is made particle diameter 40 orders-120 order, water content＜2% after granulation powders; It three is to burn till the aluminium titanates synthetic material under oxidizing atmosphere and 2-5 hour the condition of insulation at 1300 ℃-1500 ℃ of firing temperatures, firing time 15-20 hour, firing atmosphere, (2) preparation of alumina titanate ceramica lift tube, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 30-55, titanium oxide powder 45-60, aluminium titanates synthetic material 10-35 and stablizer 2-20, the stablizer here are magnesium oxide, silicon-dioxide, ferric oxide, chromium dioxide and zirconium white (ZrO
2) in one or more combination; (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 80-110 weight part carries out wet ball grinding slurrying, and the ball milling time is 15-25 hour, goes out to grind test slurry particle diameter＜3.0 micron; Its two slurry is made the powder of particle diameter 40 orders-120 order, water content＜2% after granulation; Its three pressure 70Mpa～inferior static pressure compression moulding of 180Mpa condition; 1480 ℃-1550 ℃ of its four firing temperatures, firing time 20-30 hour and firing atmosphere are under the condition of oxidizing atmosphere, are incubated 2-5 hour, burn till alumina titanate ceramica lift tube.
The titanium oxide powder that uses in the preparation process of alumina titanate ceramica lift tube is through the titanium oxide powder after 1000-1200 ℃ of pre-burning, carries out the demoulding and machining processes after also being included in compression moulding.
The physical and chemical index of described alumina powder is AL
2O
399.7%; SiO
20.04%; Na
2O0.15%; Fe
2O
30.04%, meta particle diameter: 4 microns, true specific gravity: 3.97, titanium oxide powder is to take off titanium type titanium oxide powder, its physical and chemical index is TiO
2Total amount 98.0%, wherein anatase titanium dioxide TiO
2＞90%; S≤0.08%; Fe
2O
3≤ 0.07%.
The product technology performance of the present invention's preparation and the comparison of similar products at home and abroad:
(1) apparently higher than domestic like product, be 3-8 times of traditional riser pipe all above 3 months its work-ing life;
(2) compare with traditional cast iron riser pipe, have with aluminum melt and advantage such as do not soak into, do not react;
(3) compare with quartzy riser pipe, have the intensity height, the anti-thermal shock ability is strong, does not in use fall outstanding features such as slag, long service life;
(4) compare with external like product, work-ing life is identical, but price is low.
Embodiment:
Embodiment 1, (1) preparation of aluminium titanates synthetic material, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 40, titanium oxide powder 50 and magnesium oxide and silicon-dioxide geometric ratio blended stablizer 10, (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 80 weight parts carries out wet ball grinding slurrying, the ball milling time is 20 hours, goes out to grind 2.5 microns of test slurry particle diameters; It two is slurry is made particle diameter 60 orders, water content 1.2% after granulation powders; It three is to burn till the aluminium titanates synthetic material under oxidizing atmosphere and the condition that is incubated 3 hours at 1400 ℃ of firing temperatures, firing time 20 hours, firing atmosphere.(2) preparation of alumina titanate ceramica lift tube, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 40, titanium oxide powder 45, aluminium titanates synthetic material 20 and stablizer 5, the stablizer here are that magnesium oxide, silicon-dioxide and zirconium white equal proportion are mixed; (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 100 weight parts carries out wet ball grinding slurrying, and the ball milling time is 25 hours, goes out to grind 2.0 microns of test slurry particle diameters; Its two slurry is made the powder of particle diameter 80 orders, water content 1.2% after granulation; The inferior static pressure compression moulding of its three pressure 120Mpa condition; Carry out the demoulding and machining processes after its four compression moulding, carry out machining according to product size, add following time, it is into unsuitable too fast that lathe changes, with the anti-tamper base substrate; 1550 ℃ of its five firing temperatures, firing time 25 hours and firing atmosphere are under the condition of oxidizing atmosphere, are incubated 3 hours, burn till alumina titanate ceramica lift tube.
Embodiment 2, (1) preparation of aluminium titanates synthetic material, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 55, titanium oxide powder 35 and stablizer 10, the stablizer here are one or more equal proportion combinations in magnesium oxide, silicon-dioxide, ferric oxide and the chromium dioxide; (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 90 weight parts carries out wet ball grinding slurrying, and the ball milling time is 26 hours, goes out to grind 2.8 microns of test slurry particle diameters; It two is slurry is made particle diameter 40 orders-80 order, water content 1.82% after granulation powders; It three is to burn till the aluminium titanates synthetic material under oxidizing atmosphere and the condition that is incubated 2.5 hours at 1300 ℃ of firing temperatures, firing time 20 hours, firing atmosphere.(2) preparation of alumina titanate ceramica lift tube, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 35, titanium oxide powder 50, aluminium titanates synthetic material 35 and stablizer 20, the stablizer here are one or more equal proportion combinations in magnesium oxide, silicon-dioxide, ferric oxide, chromium dioxide and the zirconium white; (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 110 weight parts carries out wet ball grinding slurrying, and the ball milling time is 20 hours, goes out to grind 1.5 microns of test slurry particle diameters; Its two slurry is made the powder of particle diameter 80 orders-120 order, water content 0.8% after granulation; The inferior static pressure compression moulding of its three pressure 90Mpa condition; 1480 ℃ of its four firing temperatures, firing time 30 hours and firing atmosphere are under the condition of oxidizing atmosphere, are incubated 5 hours, burn till alumina titanate ceramica lift tube.
Embodiment 3, and on the basis of the foregoing description 1, the physical and chemical index of described alumina powder is AL
2O
399.7%; SiO
20.04%; Na
2O0.15%; Fe
2O
30.04%, meta particle diameter: 4 microns, true specific gravity: 3.97.Titanium oxide powder is to take off titanium type titanium oxide powder, and its physical and chemical index is TiO
2Total amount 98.0%, wherein anatase titanium dioxide TiO
2＞90%; S≤0.08%; Fe
2O
3≤ 0.07%.The titanium oxide powder that uses in the preparation process of alumina titanate ceramica lift tube is through the titanium oxide powder after 1200 ℃ of pre-burnings.
Embodiment 4, and on the basis of the foregoing description 1, the physical and chemical index of described alumina powder is AL
2O
399.7%; SiO
20.04%; Na
2O0.15%; Fe
2O
30.04%, meta particle diameter: 4 microns, true specific gravity: 3.97.Titanium oxide powder is to take off titanium type titanium oxide powder, and its physical and chemical index is TiO
2Total amount 98.0%, wherein anatase titanium dioxide TiO
2＞90%; S≤0.08%; Fe
2O
3≤ 0.07%.The titanium oxide powder that uses in the preparation process of alumina titanate ceramica lift tube is through the titanium oxide powder after 1200 ℃ of pre-burnings.
Through repetition test research, stablizer is selected MgO, SiO for use
2, Fe
2O
3, CrO
2The introducing of stablizer can make synthetic aluminium titanates raw material and is greatly improved by the thermally-stabilised of aluminium titanates riser pipe that its is made.
The present invention adopts compression moulding technology, and form the microstructure of even compact in conjunction with mechanical shock, by the high pressure compacting, thereby can form an even structure, ceramic body that density is high effectively, performances such as product strength by this blank sintering are obviously improved, and reliability significantly improves.
The ceramic body organism total content of this research preparation is not more than 1.5%, plastic removal separately, and organic eliminating temperature is no more than 600 ℃, and only need be controlled temperature rise rate according to the size of goods and get final product before 600 ℃ when burning till.
The product performance detected result, volume density: 3.23G/cm3; Void content: 3.6%; Bending strength: 40Mpa.; Thermal expansivity: 1.17 * 10
-6/ ℃.
The present invention adopts the preparation method of the alumina titanate ceramica lift tube of advanced casting molding technique preparation to have Excellent thermal shock resistance is with aluminium alloy and the spy such as other molten non-ferrous metal does not infiltrate, do not react Point has the intensity height, thermal shock resistance is strong, does not in use fall slag, does not burst, uses the longevity The long outstanding advantages that waits of life. The oeverall quality of its product has met or exceeded the advanced level of same kind of products at abroad, Complete alternative import.
Claims (3)
1, a kind of preparation method of alumina titanate ceramica lift tube, it is characterized in that, (1) preparation of aluminium titanates synthetic material, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 38-64, titanium oxide powder 36-62 and stablizer 2-20, the stablizer here are the one or more combinations in magnesium oxide, silicon-dioxide, ferric oxide and the chromium dioxide; (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 80-110 weight part carries out wet ball grinding slurrying, and the ball milling time is 15-30 hour, goes out to grind test slurry particle diameter＜3.0 micron; It two is slurry is made particle diameter 40 orders-120 order, water content＜2% after granulation powders; It three is to burn till the aluminium titanates synthetic material under oxidizing atmosphere and 2-5 hour the condition of insulation at 1300 ℃-1500 ℃ of firing temperatures, firing time 15-20 hour, firing atmosphere, (2) preparation of alumina titanate ceramica lift tube, comprise that raw-material weight part that use (1) is respectively: aluminum oxide powder 30-55, titanium oxide powder 45-60, aluminium titanates synthetic material 10-35 and stablizer 2-20, the stablizer here are the one or more combinations in magnesium oxide, silicon-dioxide, ferric oxide, chromium dioxide and the zirconium white; (2) preparation process and processing condition are: at first the water with above-mentioned raw materials and 80-110 weight part carries out wet ball grinding slurrying, and the ball milling time is 15-25 hour, goes out to grind test slurry particle diameter＜3.0 micron; Its two slurry is made the powder of particle diameter 40 orders-120 order, water content＜2% after granulation; Its three pressure 70Mpa～inferior static pressure compression moulding of 180Mpa condition; 1480 ℃-1550 ℃ of its four firing temperatures, firing time 20-30 hour and firing atmosphere are under the condition of oxidizing atmosphere, are incubated 2-5 hour, burn till alumina titanate ceramica lift tube.
2, the preparation method of alumina titanate ceramica lift tube according to claim 1, it is characterized in that, the titanium oxide powder that uses in the preparation process of alumina titanate ceramica lift tube is through the titanium oxide powder after 1000-1200 ℃ of pre-burning, carries out the demoulding and machining processes after also being included in compression moulding.
3, the preparation method of alumina titanate ceramica lift tube according to claim 1 and 2 is characterized in that, the physical and chemical index of described alumina powder is AL
2O
399.7%; SiO
20.04%; Na
2O0.15%; Fe
2O
30.04%, meta particle diameter: 4 microns, true specific gravity: 3.97, titanium oxide powder is to take off titanium type titanium oxide powder, its physical and chemical index is TiO
2Total amount 98.0%, wherein anatase titanium dioxide TiO
2＞90%; S≤0.08%; Fe
2O
3≤ 0.07%.
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|---|---|---|---|
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|---|---|---|---|
| CNA2008101401121A CN101357843A (en) | 2008-08-08 | 2008-08-08 | Alumina titanate ceramica lift tube preparation method |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102639460A (en) * | 2009-09-22 | 2012-08-15 | 欧洲技术研究圣戈班中心 | Alumina titanate porous structure |
| CN102924080A (en) * | 2012-12-11 | 2013-02-13 | 青岛森淼实业有限公司 | Technology for producing aluminium titanate material |
| CN102936136A (en) * | 2012-12-11 | 2013-02-20 | 青岛森淼实业有限公司 | Preparation method of aluminium titanate sintering body |
| CN102936133A (en) * | 2012-12-10 | 2013-02-20 | 青岛海诺水务科技股份有限公司 | Preparation method of aluminium titanate material |
| CN102936135A (en) * | 2012-12-11 | 2013-02-20 | 青岛海诺水务科技股份有限公司 | Preparation method of aluminum titanate sintering body |
| CN102936134A (en) * | 2012-12-11 | 2013-02-20 | 青岛森淼实业有限公司 | Preparation method of aluminium titanate sintering body |
| CN102976749A (en) * | 2012-12-11 | 2013-03-20 | 青岛海诺水务科技股份有限公司 | Preparation process of aluminum titanate sintered body |
| CN102976397A (en) * | 2012-12-10 | 2013-03-20 | 青岛海诺水务科技股份有限公司 | Preparation process of aluminum titanate material |
| CN102976399A (en) * | 2012-12-10 | 2013-03-20 | 青岛海诺水务科技股份有限公司 | Preparation technology of aluminum titanate material |
| CN102976398A (en) * | 2012-12-10 | 2013-03-20 | 青岛中科英泰商用***有限公司 | Preparation method of aluminum titanate |
| CN102992759A (en) * | 2012-12-11 | 2013-03-27 | 青岛森淼实业有限公司 | Method for preparing aluminium titanate material |
| CN104528817A (en) * | 2015-02-06 | 2015-04-22 | 淄博硅元泰晟陶瓷新材料有限公司 | Aluminum titanate powder and preparation method thereof |
| CN106077577A (en) * | 2016-08-22 | 2016-11-09 | 盛跃丹 | A kind of low-pressure casting mould for wheel hub |
| CN106186708A (en) * | 2016-07-12 | 2016-12-07 | 河南维时汉金科技有限公司 | The preparation method of crystallite vitreous silica low-pressure casting lift tube |
| CN106237852A (en) * | 2016-08-03 | 2016-12-21 | 安徽福斯特汽车部件有限公司 | A kind of lamellar ceramic honey comb purifying vehicle exhaust material of low cost and preparation method thereof |
| CN107500757A (en) * | 2017-09-29 | 2017-12-22 | 无锡特科精细陶瓷有限公司 | A kind of preparation method for being densified alumina titanate ceramics |
| CN110357617A (en) * | 2018-04-11 | 2019-10-22 | 淄博松阳锆业科技有限公司 | A kind of novel wear resistant erosion resistant foundry ceramic lift tube and its production technology |
| CN110762012A (en) * | 2019-11-08 | 2020-02-07 | 广东美芝精密制造有限公司 | Compressor, refrigeration equipment and preparation method of middle partition plate |
| CN112279640A (en) * | 2020-06-03 | 2021-01-29 | 武汉理工大学 | Aluminum titanate ceramic for casting and preparation method thereof |
| CN115745598A (en) * | 2022-11-16 | 2023-03-07 | 浙江上硅聚力特材科技有限公司 | Manufacturing process of aluminum titanate ceramic lift tube |
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2008
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102639460A (en) * | 2009-09-22 | 2012-08-15 | 欧洲技术研究圣戈班中心 | Alumina titanate porous structure |
| CN102976397A (en) * | 2012-12-10 | 2013-03-20 | 青岛海诺水务科技股份有限公司 | Preparation process of aluminum titanate material |
| CN102976398A (en) * | 2012-12-10 | 2013-03-20 | 青岛中科英泰商用***有限公司 | Preparation method of aluminum titanate |
| CN102936133A (en) * | 2012-12-10 | 2013-02-20 | 青岛海诺水务科技股份有限公司 | Preparation method of aluminium titanate material |
| CN102976399A (en) * | 2012-12-10 | 2013-03-20 | 青岛海诺水务科技股份有限公司 | Preparation technology of aluminum titanate material |
| CN102992759A (en) * | 2012-12-11 | 2013-03-27 | 青岛森淼实业有限公司 | Method for preparing aluminium titanate material |
| CN102976749A (en) * | 2012-12-11 | 2013-03-20 | 青岛海诺水务科技股份有限公司 | Preparation process of aluminum titanate sintered body |
| CN102936134A (en) * | 2012-12-11 | 2013-02-20 | 青岛森淼实业有限公司 | Preparation method of aluminium titanate sintering body |
| CN102936135A (en) * | 2012-12-11 | 2013-02-20 | 青岛海诺水务科技股份有限公司 | Preparation method of aluminum titanate sintering body |
| CN102936136A (en) * | 2012-12-11 | 2013-02-20 | 青岛森淼实业有限公司 | Preparation method of aluminium titanate sintering body |
| CN102924080A (en) * | 2012-12-11 | 2013-02-13 | 青岛森淼实业有限公司 | Technology for producing aluminium titanate material |
| CN102924080B (en) * | 2012-12-11 | 2015-01-21 | 青岛森淼实业有限公司 | Technology for producing aluminium titanate material |
| CN104528817A (en) * | 2015-02-06 | 2015-04-22 | 淄博硅元泰晟陶瓷新材料有限公司 | Aluminum titanate powder and preparation method thereof |
| CN106186708A (en) * | 2016-07-12 | 2016-12-07 | 河南维时汉金科技有限公司 | The preparation method of crystallite vitreous silica low-pressure casting lift tube |
| CN106237852A (en) * | 2016-08-03 | 2016-12-21 | 安徽福斯特汽车部件有限公司 | A kind of lamellar ceramic honey comb purifying vehicle exhaust material of low cost and preparation method thereof |
| CN106077577A (en) * | 2016-08-22 | 2016-11-09 | 盛跃丹 | A kind of low-pressure casting mould for wheel hub |
| CN107500757A (en) * | 2017-09-29 | 2017-12-22 | 无锡特科精细陶瓷有限公司 | A kind of preparation method for being densified alumina titanate ceramics |
| CN107500757B (en) * | 2017-09-29 | 2019-08-02 | 无锡特科精细陶瓷有限公司 | A kind of preparation method densifying alumina titanate ceramics |
| CN110357617A (en) * | 2018-04-11 | 2019-10-22 | 淄博松阳锆业科技有限公司 | A kind of novel wear resistant erosion resistant foundry ceramic lift tube and its production technology |
| CN110762012A (en) * | 2019-11-08 | 2020-02-07 | 广东美芝精密制造有限公司 | Compressor, refrigeration equipment and preparation method of middle partition plate |
| CN112279640A (en) * | 2020-06-03 | 2021-01-29 | 武汉理工大学 | Aluminum titanate ceramic for casting and preparation method thereof |
| CN115745598A (en) * | 2022-11-16 | 2023-03-07 | 浙江上硅聚力特材科技有限公司 | Manufacturing process of aluminum titanate ceramic lift tube |
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