CN103693975A - Ultrahigh strength thermal shock resistance corundum/mullite product and manufacture method thereof - Google Patents
Ultrahigh strength thermal shock resistance corundum/mullite product and manufacture method thereof Download PDFInfo
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- CN103693975A CN103693975A CN201310641246.2A CN201310641246A CN103693975A CN 103693975 A CN103693975 A CN 103693975A CN 201310641246 A CN201310641246 A CN 201310641246A CN 103693975 A CN103693975 A CN 103693975A
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- mullite
- corundum
- thermal shock
- mesh
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- 229910052863 mullite Inorganic materials 0.000 title 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 title claims abstract description 31
- 230000035939 shock Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000010431 corundum Substances 0.000 title abstract description 9
- 229910052593 corundum Inorganic materials 0.000 title abstract description 9
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 239000002994 raw material Substances 0.000 claims abstract description 27
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 18
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 18
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000000843 powder Substances 0.000 claims abstract description 15
- 230000032683 aging Effects 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 238000010304 firing Methods 0.000 claims abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 29
- 230000002194 synthesizing effect Effects 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 17
- 239000010432 diamond Substances 0.000 claims description 13
- 229910003460 diamond Inorganic materials 0.000 claims description 13
- 229920002472 Starch Polymers 0.000 claims description 12
- 235000019698 starch Nutrition 0.000 claims description 12
- 239000008107 starch Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229910052851 sillimanite Inorganic materials 0.000 abstract description 8
- 229920001353 Dextrin Polymers 0.000 abstract 1
- 239000004375 Dextrin Substances 0.000 abstract 1
- 229910052849 andalusite Inorganic materials 0.000 abstract 1
- 235000019425 dextrin Nutrition 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000005245 sintering Methods 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention relates to an ultrahigh strength thermal shock resistance corundum/mullite product and a manufacture method thereof. The manufacture method comprises steps of stirring 8-mesh white corundum, 80-mesh white corundum, 320-mesh tabular corundum, 24-mesh capacitance synthetic mullite, 36-mesh capacitance synthetic mullite, 280-mesh andalusite, 180-mesh sillimanite, 800-mesh aluminum oxide powder, 200-mesh kaolin and yellow dextrin for 1-3 hours, then adding 8% water so as to wring, stacking and ageing for 10 days, stirring for 15 minutes again, then molding through jolt-squeeze, naturally drying in shade, then firing for 6-8 hours at 1600 DEG C-1620 DEG C so as to obtain the ultrahigh strength thermal shock resistance corundum/mullite product. According to the manufacture method, the raw material chemical components and granularity ratio are optimized, the product is sintered fully, and the prepared corundum/mullite product has low porosity, large volume density, good strength, good thermal shock resistance, good integrated quality, and long service life up to 4-6 months.
Description
Technical field
The present invention relates to strong anti-thermal shock corundum-mullite product of a kind of superelevation and preparation method thereof.
Background technology
Corundum-mullite product has that resistivity against fire is good, normal temperature and hot strength is large, good chemical stability, is specially adapted to the sintering of the materials such as zinc oxide valve plate in thunder arrester and electronic component.But, because the corundum phase coefficient of expansion is larger, cause the especially high-strength thermal shock resistance of thermostability of common corundum-mullite product not ideal enough, shortened the work-ing life of goods, and the zinc oxide valve plate of institute's sintering and the quality of electronic component are had a negative impact.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned deficiency of the strong anti-thermal shock corundum-mullite product of existing superelevation, improves, and corundum-mullite product that a kind of thermal shock resistance is good and preparation method thereof is provided.
The technical solution adopted in the present invention is: the strong anti-thermal shock corundum-mullite product of superelevation, and it is prepared by the raw material of following weight percent:
8 order white fused aluminas 15% ~ 25%
80 order white fused aluminas 5% ~ 10%
320 order plate diamond spars 7% ~ 15%
24 order electric capacity mullite synthesizings 10% ~ 20%
36 order electric capacity mullite synthesizings 5% ~ 15%
280 order andaluzites 6% ~ 18%
180 order sillimanites 3% ~ 10%
800 order alumina powders 15% ~ 22%
200 order kaolin 3% ~ 9%
Yellow starch gum 0.1% ~ 0.5%
Its making method is following steps:
(1) above-mentioned raw materials is delivered in vertical stainless steel stirrer and stirs 1 ~ 3h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body being placed in to 16m diplopore high temperature pusher formula oil kiln fires;
(5) goods that burn till polish, check, test, pack.
The strong anti-thermal shock corundum-mullite product of above-mentioned superelevation, the weight percent of each raw material is preferably:
8 order white fused aluminas 17% ~ 22%
80 order white fused aluminas 6% ~ 8%
320 order plate diamond spars 8% ~ 12%
24 order electric capacity mullite synthesizings 12% ~ 18%
36 order electric capacity mullite synthesizings 7% ~ 14%
280 order andaluzites 8% ~ 12%
180 order sillimanites 4% ~ 8%
800 order alumina powders 16% ~ 20%
200 order kaolin 4% ~ 7%
Yellow starch gum 0.15% ~ 0.3%.
The strong anti-thermal shock corundum-mullite product of above-mentioned superelevation, the weight percent of each raw material is:
8 order white fused aluminas 19.8%
80 order white fused aluminas 7%
320 order plate diamond spars 10%
24 order electric capacity mullite synthesizings 15%
36 order electric capacity mullite synthesizings 10%
280 order andaluzites 10%
180 order sillimanites 5%
800 order alumina powders 18%
200 order kaolin 5%
Yellow starch gum 0.2%.
The strong anti-thermal shock corundum-mullite product of above-mentioned superelevation, its material chemical component comprises aluminum oxide 78 ~ 82%, and silica 15 ~ 18% is preferably aluminum oxide 80%, silica 1 6.7%.
The strong anti-thermal shock corundum-mullite product of above-mentioned superelevation, kaolin is Kaolin of Suzhou.
The strong anti-thermal shock corundum-mullite product of above-mentioned superelevation, alumina powder is Alpha-alumina.
The making method of the strong anti-thermal shock corundum-mullite product of above-mentioned superelevation, in step (4), the firing time is 6 ~ 8 hours, oily kiln temperature degree is 1600 ℃ ~ 1620 ℃.
Plate diamond spar is a kind of pure contraction alundum thoroughly, has good hot volume stability and anti-thermal shock stability.Kaolin of Suzhou purity is high, granularity is suitable, and plasticity-is good, dry and to burn till contraction less.Sillimanite and andaluzite sintering temperature are lower, can reduce the sintering temperature of the present invention's combination and produce certain volume to expand, and eliminate the shrinkage phenomenon of ambiguity material, extend the work-ing life of goods.The granularity of raw material is less, and thermal shock resistance is poorer, and the present invention strictly controls each raw material particle size size, has reduced apparent porosity, has increased volume density, has improved the thermal shock resistance of goods.
The apparent porosity of the strong anti-thermal shock corundum-mullite product of superelevation that the present invention makes is lower, and volume density is larger, and intensity is good, and high heat-flash shock resistance is good, and integrated quality is good, and can reach for 4 ~ June work-ing life, and properties all can meet market demands simultaneously.
Advantage of the present invention and beneficial effect:
1. strict material composition, proportioning and the granularity proportioning controlled, reaches the good object of the lower while sintering effect of sintering temperature.
2. use vibrations oil press to shake molded, each feed distribution is even, and distribution of particle sizes is even, effectively reduces void content, has increased volume density, and goods have good hot strength.
3. burn till soaking time longer, through abundant sintering, the high-strength good thermal shock of goods, extend to for 4 ~ June work-ing life.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1
(1) 8 order white fused alumina 150Kg, 80 order white fused alumina 50 Kg, 320 order plate diamond spar 70Kg, 24 order electric capacity mullite synthesizing 125Kg, 36 order electric capacity mullite synthesizing 50Kg, 280 order andaluzite 180Kg, 180 order sillimanite 60Kg, 800 order alumina powder 220Kg, 200 order kaolin 90Kg, yellow starch gum 5Kg are delivered in vertical stainless steel stirrer and stir 1h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body is placed in to 16m diplopore high temperature pusher formula oil kiln and fires, 1600 ℃ of temperature, time 8h;
(5) goods that burn till polish, check, test, pack.
Embodiment 2
(1) 8 order white fused alumina 250Kg, 80 order white fused alumina 100 Kg, 320 order plate diamond spar 76Kg, 24 order electric capacity mullite synthesizing 100Kg, 36 order electric capacity mullite synthesizing 60Kg, 280 order andaluzite 70Kg, 180 order sillimanite 100Kg, 800 order alumina powder 165Kg, 200 order kaolin 75Kg, yellow starch gum 4Kg are delivered in vertical stainless steel stirrer and stir 2h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body is placed in to 16m diplopore high temperature pusher formula oil kiln and fires, 1605 ℃ of temperature, time 6h;
(5) goods that burn till polish, check, test, pack.
Embodiment 3
(1) 8 order white fused alumina 174Kg, 80 order white fused alumina 55 Kg, 320 order plate diamond spar 150Kg, 24 order electric capacity mullite synthesizing 200Kg, 36 order electric capacity mullite synthesizing 150Kg, 280 order andaluzite 60Kg, 180 order sillimanite 30Kg, 800 order alumina powder 150Kg, 200 order kaolin 30Kg, yellow starch gum 1Kg are delivered in vertical stainless steel stirrer and stir 1h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body is placed in to 16m diplopore high temperature pusher formula oil kiln, 1610 ℃ of firing temperatures, time 7h;
(5) goods that burn till polish, check, test, pack.
Embodiment 4
(1) 8 order white fused alumina 216Kg, 80 order white fused alumina 60 Kg, 320 order plate diamond spar 116Kg, 24 order electric capacity mullite synthesizing 120Kg, 36 order electric capacity mullite synthesizing 137Kg, 280 order andaluzite 80Kg, 180 order sillimanite 40Kg, 800 order alumina powder 160Kg, 200 order kaolin 68Kg, yellow starch gum 3Kg are delivered in vertical stainless steel stirrer and stir 2h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body is placed in to 16m diplopore high temperature pusher formula oil kiln and fires, 1615 ℃ of temperature, time 8h;
(5) goods that burn till polish, check, test, pack.
Embodiment 5
(1) 8 order white fused alumina 198Kg, 70 order white fused alumina 50 Kg, 320 order plate diamond spar 100Kg, 24 order electric capacity mullite synthesizing 150Kg, 36 order electric capacity mullite synthesizing 100Kg, 280 order andaluzite 100Kg, 180 order sillimanite 50Kg, 800 order alumina powder 180Kg, 200 order kaolin 50Kg, yellow starch gum 2Kg are delivered in vertical stainless steel stirrer and stir 1h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body is placed in to 16m diplopore high temperature pusher formula oil kiln and fires, 1600 ℃ of temperature, time 6h;
(5) goods that burn till polish, check, test, pack.
Embodiment 6
(1) 8 order white fused alumina 170Kg, 80 order white fused alumina 76 Kg, 320 order plate diamond spar 80Kg, 24 order electric capacity mullite synthesizing 75.5Kg, 36 order electric capacity mullite synthesizing 70Kg, 280 order andaluzite 116Kg, 180 order sillimanite 76Kg, 800 order alumina powder 195Kg, 200 order kaolin 40Kg, yellow starch gum 1.5Kg are delivered in vertical stainless steel stirrer and stir 3h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body is placed in to 16m diplopore high temperature pusher formula oil kiln and fires, 1620 ℃ of temperature, time 7h;
(5) goods that burn till polish, check, test, pack.
Claims (8)
1. the strong anti-thermal shock corundum-mullite product of superelevation, is characterized in that, it is prepared by the raw material of following weight percent:
8 order white fused aluminas 15% ~ 25%
80 order white fused aluminas 5% ~ 10%
320 order plate diamond spars 7% ~ 15%
24 order electric capacity mullite synthesizings 10% ~ 20%
36 order electric capacity mullite synthesizings 5% ~ 15%
280 order andaluzites 6% ~ 18%
180 order sillimanites 3% ~ 10%
800 order alumina powders 15% ~ 22%
200 order kaolin 3% ~ 9%
Yellow starch gum 0.1% ~ 0.5%
Its making method is following steps:
(1) above-mentioned raw materials is delivered in vertical stainless steel stirrer and stirs 1 ~ 3h, mix;
(2) raw material mixing be placed in to horizontal auger machine and add 8% water of dry mash total mass to twist out, stacking ageing mixture 10d;
(3) with forced action type meteor stirrer, by being delivered to after raw material stirring 15min in vibrations oil press, with firm horizontal jolt-squeezing, make base, whole base is also placed nature and is dried in the shade;
(4) dry body being placed in to 16m diplopore high temperature pusher formula oil kiln fires;
(5) goods that burn till polish, check, pack.
2. strong anti-thermal shock corundum-mullite product of superelevation according to claim 1 and preparation method thereof, is characterized in that, the weight percent of each raw material is preferably:
8 order white fused aluminas 17% ~ 22%
80 order white fused aluminas 6% ~ 8%
320 order plate diamond spars 8% ~ 12%
24 order electric capacity mullite synthesizings 12% ~ 18%
36 order electric capacity mullite synthesizings 7% ~ 14%
280 order andaluzites 8% ~ 12%
180 order sillimanites 4% ~ 8%
800 order alumina powders 16% ~ 20%
200 order kaolin 4% ~ 7%
Yellow starch gum 0.15% ~ 0.3%.
3. strong anti-thermal shock corundum-mullite product of superelevation according to claim 2 and preparation method thereof, is characterized in that, the weight percent of each raw material is:
8 order white fused aluminas 19.8%
80 order white fused aluminas 7%
320 order plate diamond spars 10%
24 order electric capacity mullite synthesizings 15%
36 order electric capacity mullite synthesizings 10%
280 order andaluzites 10%
180 order sillimanites 5%
800 order alumina powders 18%
200 order kaolin 5%
Yellow starch gum 0.2%.
4. the strong anti-thermal shock corundum-mullite product of superelevation according to claim 3, is characterized in that, its material chemical component comprises aluminum oxide 78 ~ 82%, silica 15 ~ 18%.
5. the strong anti-thermal shock corundum-mullite product of superelevation according to claim 3, is characterized in that, its material chemical component is preferably and comprises aluminum oxide 80%, silica 1 6.7%.
6. the strong anti-thermal shock corundum-mullite product of superelevation according to claim 3, is characterized in that, described kaolin is Kaolin of Suzhou.
7. the strong anti-thermal shock corundum-mullite product of superelevation according to claim 3, is characterized in that, described alumina powder is Alpha-alumina.
8. the making method of the strong anti-thermal shock corundum-mullite product of superelevation according to claim 1, is characterized in that, in described step (4), the firing time is 6 ~ 8 hours, and oily kiln temperature degree is 1600 ℃ ~ 1620 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641246.2A CN103693975B (en) | 2013-12-04 | 2013-12-04 | Ultrahigh strength thermal shock resistance corundum/mullite product and manufacture method thereof |
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| CN201310641246.2A CN103693975B (en) | 2013-12-04 | 2013-12-04 | Ultrahigh strength thermal shock resistance corundum/mullite product and manufacture method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591753A (en) * | 2014-12-24 | 2015-05-06 | 江苏三恒高技术窑具有限公司 | High-performance modified mullite high-temperature bedplate as well as manufacturing method |
| CN107098713A (en) * | 2017-06-12 | 2017-08-29 | 合肥铭佑高温技术有限公司 | A kind of exotic material and preparation method for magnetic core |
| CN107098712A (en) * | 2017-06-12 | 2017-08-29 | 合肥铭佑高温技术有限公司 | A kind of exotic material and preparation method for Zinc-Oxide Arrester valve block |
| CN107903041A (en) * | 2017-10-25 | 2018-04-13 | 湖北亿佳欧电子陶瓷股份有限公司 | A kind of saggar and preparation method thereof |
| CN108546139A (en) * | 2018-05-02 | 2018-09-18 | 广东羚光新材料股份有限公司 | A kind of mullite crystal whisker doped corundum-mullite bearing burning plate and its manufacturing method |
| CN109574640A (en) * | 2019-01-25 | 2019-04-05 | 山东铭特陶瓷材料有限公司 | The preparation method of high-temperature corundum mullite crucible |
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| CN101618968A (en) * | 2009-08-11 | 2010-01-06 | 郑州东方炉衬材料有限公司 | Ultra-microporous lightweight insulated firebrick and manufacture method thereof |
| CN101955364A (en) * | 2010-10-21 | 2011-01-26 | 淄博鲁铭高温材料科技有限公司 | Method for producing corundum-mullite sagger |
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| CN1159795A (en) * | 1994-09-28 | 1997-09-17 | 东陶机器株式会社 | Process for producing body of whiteware with high strength and excellent themal impact resistance |
| CN101481255A (en) * | 2009-02-19 | 2009-07-15 | 浙江大学 | High-heat resistance shock resistant mullite bearing burning plate and preparation thereof |
| CN101618968A (en) * | 2009-08-11 | 2010-01-06 | 郑州东方炉衬材料有限公司 | Ultra-microporous lightweight insulated firebrick and manufacture method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104591753A (en) * | 2014-12-24 | 2015-05-06 | 江苏三恒高技术窑具有限公司 | High-performance modified mullite high-temperature bedplate as well as manufacturing method |
| CN107098713A (en) * | 2017-06-12 | 2017-08-29 | 合肥铭佑高温技术有限公司 | A kind of exotic material and preparation method for magnetic core |
| CN107098712A (en) * | 2017-06-12 | 2017-08-29 | 合肥铭佑高温技术有限公司 | A kind of exotic material and preparation method for Zinc-Oxide Arrester valve block |
| CN107903041A (en) * | 2017-10-25 | 2018-04-13 | 湖北亿佳欧电子陶瓷股份有限公司 | A kind of saggar and preparation method thereof |
| CN108546139A (en) * | 2018-05-02 | 2018-09-18 | 广东羚光新材料股份有限公司 | A kind of mullite crystal whisker doped corundum-mullite bearing burning plate and its manufacturing method |
| CN109574640A (en) * | 2019-01-25 | 2019-04-05 | 山东铭特陶瓷材料有限公司 | The preparation method of high-temperature corundum mullite crucible |
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| CN103693975B (en) | 2015-01-07 |
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