CN1669980A - Preparation method of corundum-mullite composite ceramic push plate - Google Patents
Preparation method of corundum-mullite composite ceramic push plate Download PDFInfo
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- CN1669980A CN1669980A CN 200510049357 CN200510049357A CN1669980A CN 1669980 A CN1669980 A CN 1669980A CN 200510049357 CN200510049357 CN 200510049357 CN 200510049357 A CN200510049357 A CN 200510049357A CN 1669980 A CN1669980 A CN 1669980A
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- mullite
- alumina
- powder
- corundum
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- 229910052863 mullite Inorganic materials 0.000 title claims abstract description 60
- 239000000919 ceramic Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 title claims abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 52
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000000843 powder Substances 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 21
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 15
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 239000000741 silica gel Substances 0.000 claims abstract description 3
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 3
- 239000000499 gel Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 239000011863 silicon-based powder Substances 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 abstract 1
- 230000033558 biomineral tissue development Effects 0.000 abstract 1
- 239000007767 bonding agent Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- WUGQZFFCHPXWKQ-UHFFFAOYSA-N Propanolamine Chemical compound NCCCO WUGQZFFCHPXWKQ-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- TZMFJUDUGYTVRY-UHFFFAOYSA-N pentane-2,3-dione Chemical compound CCC(=O)C(C)=O TZMFJUDUGYTVRY-UHFFFAOYSA-N 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
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- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a preparation method of corundum-mullite composite ceramic push plate by using mullite particles, aluminium oxide particles, aluminium oxide micropowder, mullite micropowder and ultra-fine silicon micronized quartz powder as raw material, using alumina silica gel as bonding agent, and introducing aluminum fluoride mineralization agent.
Description
Technical field
The present invention relates to pottery and fire resistive material product, relate in particular to a kind of preparation method of corundum-mullite composite ceramic push plate.
Background technology
Sustainable development along with China's electronic ceramics industry, length is short, floor space is little, equipment is simple because of having for pushed bat kiln, easy to operate, advantage such as have a narrow range of temperature, be subjected to the welcome of functional materials and components and parts manufacturing enterprise deeply, be used widely, the demand of the required push pedal of pushed bat kiln increases rapidly.Along with updating of function ceramics and device sintering process and equipment, the sintering temperature of tunnel furnace with and more and more higher to the requirement of the stability of push pedal, traditional clay matter, high alumina matter, fused quartz matter, silicon nitride combined silicon carbide matter and common cordierite push pedal can't be satisfied service requirements, and current demand has then been satisfied in the corundum-mullite push pedal that the present invention mentions effectively.
Mullite has characteristics such as thermal expansivity is low, fusing point is high, creep resistance, anti-thermal shock ability excellence; Corundum has good springiness, fusing point height, wear-resisting, characteristic such as the chemical resistance of concrete ability is strong.The present invention uses the mullite coefficient of expansion different with corundum to carry out mismatch the thermal shock resistance that forms tiny crack raising corundum-mullite composite ceramic push plate is set.Introducing silica-alumina gel replacement clay in the corundum-mullite pottery is wedding agent, prevent the introducing of impurity, reduce the generation of glassy phase, improve the creep-resistant property of corundum-mullite ceramic push plate, and introducing aluminum trifluoride mineralizer improves the over-all properties of corundum-mullite ceramic push plate, in the large size push pedal, introduce and offer stress joint technology, thereby increase substantially the life-span of corundum-mullite push pedal.
Summary of the invention
Poor for overcoming existing corundum-mullite push pedal creep resistance, the shortcoming that work-ing life is short the object of the present invention is to provide a kind of preparation method of corundum-mullite composite ceramic push plate.
The technical solution used in the present invention is:
1), compositions in weight percentage proportioning:
Mullite particle≤3mm 10～50%
Alumina particle≤3mm 12～60%
Alumina powder≤180 orders 10～25%
Mullite miropowder≤320 orders 0～12%
Super-fine silicon micro-powder≤320 orders 3～7%
Silica-alumina gel 2～6%
Aluminum trifluoride 0～1.5%;
2) preparation method:
Do aluminium oxide granule pellet and mullite particle material mixed; Add the silica-alumina gel wet mixing; Add alumina powder, silicon powder and the wet mixing of mullite fine powder again; Bundle material 4～24 hours; Mechanical pressing, drying and burn till.
Described silica-alumina gel adopts commercially available aluminium glue and silica gel by mullite chemistry proportioning utilization sol-gel technology preparing, and its mullite weight percentage is 5～10%.
Described aluminum trifluoride mainly is to adjust the crystal shape of the mullite of generation, is a kind of mineralizer; Described alumina particle is a plate diamond spar; Described mullite particle and mullite miropowder adopt the electric smelting mode to prepare; Described alumina powder is Calcined polishing aluminum oxide micro mist or fused corundom micro mist; Described super-fine silicon micro-powder is that silica content is greater than 97%.
The useful effect that the present invention has is: the present invention burns till for 1600～1700 ℃, long service life can be used for 1600～1700 ℃ of high temperature pushers.It mainly improves and is to adopt silica-alumina gel as wedding agent, and the crystal formation of the mullite phase that in push pedal, generates in the introducing aluminum trifluoride mineralizer control sintering process, and carried out offering of stress joint according to the size of push pedal, all sizes are then offered the stress joint of 2～4cm in the both sides symmetry greater than the push pedal of 25cm, further improved the work-ing life of push pedal, at present reached 80 stoves work-ing life at 1650 ℃ of hyperthermia tunnel Kilns of 25 meters.
Description of drawings
Fig. 1 is the corundum-mullite push pedal synoptic diagram that cracks;
Fig. 2 is corundum-mullite push pedal micro-structure diagram (a no aluminum trifluoride);
Fig. 3 is a corundum-mullite push pedal micro-structure diagram (containing aluminum trifluoride).
Embodiment
One, the preparation method of corundum-mullite ceramic push plate of the present invention is as follows:
1), compositions in weight percentage proportioning:
Mullite particle≤3mm 10～50%
Alumina particle≤3mm 12～60%
Alumina powder≤180 orders 10～25%
Mullite miropowder≤320 orders 0～12%
Super-fine silicon micro-powder≤320 orders 3～7%
Silica-alumina gel 2～6%
Aluminum trifluoride 0～1.5%;
2) preparation method:
Do aluminium oxide granule pellet and mullite particle material mixed; Add the silica-alumina gel wet mixing; Add alumina powder, silicon powder and the wet mixing of mullite fine powder again; Bundle material 4～24 hours; Mechanical pressing, drying and burn till.
Two, the preparation method of silica-alumina gel:
1) aluminium glue of the 10～20wt% alumina content that is with commercially available concentration is added to that to fill through the acidifying pH value be that 2.5～3.0 deionized water dilutes, and stirring and being configured to alumina content is that the aluminium colloidal sol of 5～10wt% is standby;
2) be to add deionized water in the silicon sol of 18wt% to dilute at silica content, stirring and being configured to silica content is that the silicon sol of 5～10wt% is standby;
3) with the aluminium colloidal sol for preparing stirring and refluxing half an hour in 60～95 ℃ of reactors, be cooled to 10～50 ℃ and add quantitative silicon sol in mullite chemistry formula ratio, stir while adding, control pH value≤3 simultaneously, churning time is 1～3 hour preparation silicon-aluminum sol.
Can prepare the silica-alumina gel of different concns by dewatering, add the gelation time that ammoniacal liquor or organic bases 3-aminopropanol can be accelerated silicon-aluminum sol, add the gelation time that methyl ethyl diketone can delay silicon-aluminum sol.
Being used for deionized water acidifying material is acetate, nitric acid, hydrochloric acid or oxalic acid.
2～10% of adding silicon-aluminum sol weight aluminum trifluoride mineralizer stirs the silica-alumina gel that obtains containing mineralizer in the silicon-aluminum sol for preparing.
The corundum-mullite ceramic push plate is designed corresponding corundum-mullite ceramic push plate according to temperature, atmosphere, ceramic boiling characteristics, the length of kiln and the adjustment that weight-carrying capacity is filled a prescription of different tunnel furnace.The manufacture method of this push pedal is that particulate material that proportioning is good is done and mixed the back and add silica-alumina gel, sneaks into the fines after the blend again, the bundle material, and mechanical pressing, dried adobe is burnt till through 1600～1700 ℃, and its physical and chemical index is
Volume density: 2.5～3.1g/cm
3
Cold crushing strength: 10～15MPa
Strength at normal temperature: 80～150MPa
Heavily burn line and change (1650 ℃): ± 0.15%
1100 ℃ of water-cooleds of thermal shock resistance: 〉=25 times
Load softening point (0.2MPa): 〉=1690 ℃
As shown in Figure 1, when used push pedal size during, need offer 5～10% the stress joint d that is of a size of width B, zygomorphy in side direction greater than 25cm * 25cm.
Embodiment 1:
It is (weight percent) that machine is pressed the prescription of corundum-mullite ceramic push plate:
Mullite particle≤3mm 12
Alumina particle≤3mm 57.8
Aluminum oxide fine powder≤180 orders 20
Mullite fine powder≤320 orders 0
Super-fine silicon micro-powder powder≤320 orders 5.7
Silica-alumina gel 4.5
Embodiment 2:
It is (weight percent) that machine is pressed the prescription of corundum-mullite ceramic push plate:
Mullite particle≤3mm 48
Alumina particle≤3mm 16.6
Aluminum oxide fine powder≤180 orders 19.4
Mullite fine powder≤320 orders 7.5
Super-fine silicon micro-powder powder≤320 orders 5
Silica-alumina gel 3.5
As shown in Figure 2, corundum-mullite push pedal microstructure (no aluminum trifluoride).
Embodiment 3:
It is (weight percent) that machine is pressed the prescription of corundum-mullite ceramic push plate:
Mullite particle≤3mm 12
Alumina particle≤3mm 57.8
Aluminum oxide fine powder≤180 orders 19
Mullite fine powder≤320 orders 0
Super-fine silicon micro-powder powder≤320 orders 5.7
Silica-alumina gel 4.5
Aluminum trifluoride 1
As shown in Figure 3, corundum-mullite push pedal microstructure (containing aluminum trifluoride).
Claims (3)
1, a kind of preparation method of corundum-mullite composite ceramic push plate is characterized in that:
1), compositions in weight percentage proportioning:
Mullite particle≤3mm 10～50%
Alumina particle≤3mm 12～60%
Alumina powder≤180 orders 10～25%
Mullite miropowder≤320 orders 0～12%
Super-fine silicon micro-powder≤320 orders 3～7%
Silica-alumina gel 2～6%
Aluminum trifluoride 0～1.5%
2) preparation method:
Do aluminium oxide granule pellet and mullite particle material mixed; Add the silica-alumina gel wet mixing; Add alumina powder, silicon powder and the wet mixing of mullite fine powder again; Bundle material 4～24 hours; Mechanical pressing, drying and burn till.
2, the preparation method of a kind of corundum-mullite composite ceramic push plate according to claim 1, it is characterized in that: described silica-alumina gel adopts commercially available aluminium glue and silica gel by mullite chemistry proportioning utilization sol-gel technology preparing, and its mullite weight percentage is 5～10%.
3, the preparation method of a kind of corundum-mullite composite ceramic push plate according to claim 1 is characterized in that: described aluminum trifluoride mainly is to adjust the crystal shape of the mullite of generation, is a kind of mineralizer; Described alumina particle is a plate diamond spar; Described mullite particle and mullite miropowder adopt the electric smelting mode to prepare; Described alumina powder is Calcined polishing aluminum oxide micro mist or fused corundom micro mist; Described super-fine silicon micro-powder is that silica content is greater than 97%.
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| CN 200510049357 CN1669980A (en) | 2005-03-14 | 2005-03-14 | Preparation method of corundum-mullite composite ceramic push plate |
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| CN 200510049357 CN1669980A (en) | 2005-03-14 | 2005-03-14 | Preparation method of corundum-mullite composite ceramic push plate |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857448A (en) * | 2010-06-03 | 2010-10-13 | 安吉科灵磁性材料有限公司 | Titanium dioxide sol reinforced corundum-mullite product and production method thereof |
| CN102032794A (en) * | 2010-12-20 | 2011-04-27 | 江苏三恒高技术窑具有限公司 | Platen for sintering soft ferrite in nitrogen kiln |
| CN101481255B (en) * | 2009-02-19 | 2011-09-21 | 浙江大学 | High-heat resistance shock resistant mullite bearing burning plate and preparation thereof |
| CN101555151B (en) * | 2009-05-25 | 2011-12-07 | 巩义市金岭耐火材料有限公司 | Corundum fireproof ball used for ball-type hot-blast stove and preparation method thereof |
| CN104446566A (en) * | 2014-12-16 | 2015-03-25 | 江苏苏嘉集团新材料有限公司 | Degassing sheet for jet refining of molten metal and preparation method of degassing sheet |
| CN104671827A (en) * | 2013-11-26 | 2015-06-03 | 济源赛孚工业陶瓷有限公司 | Silicon carbide stand column antioxidant protective layer |
| CN105236945A (en) * | 2015-10-19 | 2016-01-13 | 安徽宁火新材料有限公司 | High strength thermal shock resistance push plate |
| WO2016063196A1 (en) * | 2014-10-23 | 2016-04-28 | Ashapura Minechem Ltd. | Composites of sintered mullite reinforced corundum granules and method for its preparation |
| WO2016196355A1 (en) * | 2015-06-01 | 2016-12-08 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory articles and methods for forming same |
| CN112125684A (en) * | 2020-09-21 | 2020-12-25 | 中钢南京环境工程技术研究院有限公司 | Preparation method of light, high-strength and high-thermal shock-resistant corundum-mullite refractory material |
| CN112250469A (en) * | 2020-09-30 | 2021-01-22 | 浙江锋锂新能源科技有限公司 | Kiln material for preparing oxide solid electrolyte membrane and preparation process of thin plate type kiln |
| CN112521133A (en) * | 2020-12-18 | 2021-03-19 | 洛阳索莱特材料科技有限公司 | Preparation method of ultrahigh-temperature corundum-mullite ceramic product |
| US11078119B2 (en) | 2014-10-23 | 2021-08-03 | Ashapura Minechem Ltd. | Composites of sintered mullite reinforced corundum granules and method for its preparation |
| CN113773105A (en) * | 2021-09-06 | 2021-12-10 | 深圳星光点点科技有限公司 | Porous ceramic atomizing core for electronic cigarette and preparation method and application thereof |
| CN114368965A (en) * | 2022-01-21 | 2022-04-19 | 义马瑞辉新材料有限公司 | Preparation method of two-dimensional homogenized mullite corundum high-temperature material |
| CN114409385A (en) * | 2022-01-21 | 2022-04-29 | 义马瑞辉新材料有限公司 | Preparation method of two-dimensional homogenized corundum-mullite high-temperature material |
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- 2005-03-14 CN CN 200510049357 patent/CN1669980A/en active Pending
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| CN101481255B (en) * | 2009-02-19 | 2011-09-21 | 浙江大学 | High-heat resistance shock resistant mullite bearing burning plate and preparation thereof |
| CN101555151B (en) * | 2009-05-25 | 2011-12-07 | 巩义市金岭耐火材料有限公司 | Corundum fireproof ball used for ball-type hot-blast stove and preparation method thereof |
| CN101857448B (en) * | 2010-06-03 | 2012-10-03 | 安吉科灵磁性材料有限公司 | Titanium dioxide sol reinforced corundum-mullite product and production method thereof |
| CN101857448A (en) * | 2010-06-03 | 2010-10-13 | 安吉科灵磁性材料有限公司 | Titanium dioxide sol reinforced corundum-mullite product and production method thereof |
| CN102032794A (en) * | 2010-12-20 | 2011-04-27 | 江苏三恒高技术窑具有限公司 | Platen for sintering soft ferrite in nitrogen kiln |
| CN102032794B (en) * | 2010-12-20 | 2012-06-06 | 江苏三恒高技术窑具有限公司 | Platen for sintering soft ferrite in nitrogen kiln |
| CN104671827B (en) * | 2013-11-26 | 2017-01-04 | 济源赛孚工业陶瓷有限公司 | A kind of carborundum column oxidation resistant protective layer |
| CN104671827A (en) * | 2013-11-26 | 2015-06-03 | 济源赛孚工业陶瓷有限公司 | Silicon carbide stand column antioxidant protective layer |
| US11078119B2 (en) | 2014-10-23 | 2021-08-03 | Ashapura Minechem Ltd. | Composites of sintered mullite reinforced corundum granules and method for its preparation |
| WO2016063196A1 (en) * | 2014-10-23 | 2016-04-28 | Ashapura Minechem Ltd. | Composites of sintered mullite reinforced corundum granules and method for its preparation |
| CN104446566A (en) * | 2014-12-16 | 2015-03-25 | 江苏苏嘉集团新材料有限公司 | Degassing sheet for jet refining of molten metal and preparation method of degassing sheet |
| US9758434B2 (en) | 2015-06-01 | 2017-09-12 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory articles and methods for forming same |
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| CN105236945B (en) * | 2015-10-19 | 2018-03-02 | 安徽宁火新材料有限公司 | A kind of high-strength temperature-resistant shake push pedal and preparation method thereof |
| CN112125684A (en) * | 2020-09-21 | 2020-12-25 | 中钢南京环境工程技术研究院有限公司 | Preparation method of light, high-strength and high-thermal shock-resistant corundum-mullite refractory material |
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| CN113773105B (en) * | 2021-09-06 | 2022-11-25 | 深圳星光点点科技有限公司 | Porous ceramic atomizing core for electronic cigarette and preparation method and application thereof |
| CN114368965A (en) * | 2022-01-21 | 2022-04-19 | 义马瑞辉新材料有限公司 | Preparation method of two-dimensional homogenized mullite corundum high-temperature material |
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