CN102241510A - Electric melting method for manufacturing yttria stabilized zirconia - Google Patents
Electric melting method for manufacturing yttria stabilized zirconia Download PDFInfo
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- CN102241510A CN102241510A CN2010101714335A CN201010171433A CN102241510A CN 102241510 A CN102241510 A CN 102241510A CN 2010101714335 A CN2010101714335 A CN 2010101714335A CN 201010171433 A CN201010171433 A CN 201010171433A CN 102241510 A CN102241510 A CN 102241510A
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Abstract
The invention discloses an electric melting method for manufacturing yttria stabilized zirconia. The method comprises the following steps: uniformly mixing 80-97 weight parts of monoclinic zirconia, 3-9 weight parts of yttrium compound, 0-3.4 weight parts of calcium compound and 0-3 weight parts of magnesium compound in a mixer to prepare mixing furnace charge, then putting into a arc furnace for melting, cooling a melt, and crushing. An yttria stabilized zirconia refractory material produced by the invention has a true density higher than 6.0g/cm<3>, a stabilization rate higher than 70%, compact material structure, good erosion resistance and thermal shock stability, so as to prolong service life of refractory material. In addition, the yttria stabilized zirconia can be applied to various zirconia ceramics, such as zirconia grinding medium, zirconia oxygen probe and plasma spraying.
Description
Technical field
The present invention relates to zirconium dioxide, be specifically related to a kind of electrically smelting making method of yttrium-stabile zirconium dioxide.
Background technology
Former electric smelting method is produced zirconium dioxide probably three kinds of methods: first kind is used the pouring-type three-phawse arc furnace, and compound is put into fusing, refining in the electric arc furnace, is poured in the water cooled mo(u)ld and cools off, and carries out fragmentation then; Second method is the molten materials after the refining, blows ball with high-pressure air, and the cooling back is broken; The third method is to use fixed three-phawse arc furnace, melts after adding partially mixed material, and the shelling cooling is broken after the refining.The common defective that exists of the zirconium white of these three kinds original electric smelting method productions is: material is not fine and close, the void content height, and the fluctuation of stabilization rate is big, can not satisfy the requirement of metallurgy industry functional refractory.At present the zirconium dioxide product is used widely in industries such as pottery, chemical industry, metallurgy, but when being used for functional refractory that metallurgical continuous casting uses, its resistance to fouling and thermal shock resistance do not reach service requirements.
Summary of the invention
The technical problem to be solved in the present invention is that the resistance to fouling of material of yttrium-stabile zirconium dioxide and thermal shock resistance can not satisfy the service requirements in the functional refractory that metallurgical continuous casting uses, and a kind of electrically smelting making method of yttrium-stabile zirconium dioxide is provided.
Technical scheme of the present invention is: the electrically smelting making method of yttrium-stabile zirconium dioxide, and its operation steps is as follows:
(1) with monocline type zirconium white 80～97 weight parts, compound 3～9 weight parts of yttrium, compound 0～3.4 weight part of calcium, compound 0～3 weight part of magnesium mix through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 2700～3500 ℃, is cast into piece after being fused into stone roller or fusing;
(3) with the melt in the step (2) cooling, be reduced to room temperature～100 ℃ after, with the melt fragmentation.
Will through smash, frit behind the pick is processed into the needed granularity of user with broken disintegrating apparatus.The demand that material after broken the pulverizing is looked the user can be through packing warehouse-in again after the calcining, also can without calcining directly packing put in storage.
Zirconic content is greater than 96% in the described monocline type zirconium white.
Described monocline type zirconium white derives from any one or at least two kinds in electric smelting desilicated zirconia, chemical zirconium or the natural baddeleyite.
The compound of described yttrium is any one or at least two kinds in yttrium oxide, yttrium oxalate, the yttrium carbonate, and the compound of described calcium is any one or at least two kinds in calcium oxide, calcium hydroxide, the lime carbonate; The compound of magnesium is any one or at least two kinds in magnesium oxide, magnesium hydroxide, the magnesiumcarbonate.
Melt adopts water-cooled or wind cooling temperature lowering in the described step (3), and rate of temperature fall is 50～100 ℃/hour.
The invention has the beneficial effects as follows: the yttrium-stabile zirconium dioxide refractory materials that the present invention produces, true density is greater than 6.0g/cm
3The stabilization rate is greater than 70%, the material structure densification, resistance to fouling and good thermal shock stability are so prolonged the work-ing life of refractory materials, can be used for various zirconia ceramic products such as zirconium oxide abrasive body, zirconium white Determining oxygen probe, plasma spraying, in application process, because of the existence of the compound of compound that calcium is arranged and magnesium, when meeting temperature etc. when changing, the compound of yttrium can show best stability, is difficult for precipitation.More expensive because of the compound price of yttrium simultaneously, introduce the compound of calcium and the compound of magnesium and also reduced manufacturing cost.
Concrete embodiment
Embodiment 1
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows:
(1) with zirconic content greater than 96% electric smelting desilicated zirconia 94.3kg, yttrium oxide 3.2kg, calcium oxide 2.5kg mixes through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 3500 ℃, is cast into piece after being fused into stone roller or fusing;
(3) melt in the step (2) is adopted water-cooled cooling, rate of temperature fall is 100 ℃/hour, be reduced to 50 ℃ after, with melt smash, pick, the frit behind the pick is processed into the needed granularity of user with broken disintegrating apparatus.The demand that material after broken the pulverizing is looked the user can be through packing warehouse-in again after the calcining, also can without calcining directly packing put in storage.
Embodiment 2
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% electric smelting desilicated zirconia 63.3kg, natural baddeleyite 30kg, yttrium oxide 3kg, magnesium oxide 1kg mixes through mixer and to make mixture charge, and all the other manufacture method are with embodiment 1.
Embodiment 3
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% electric smelting desilicated zirconia 40kg, chemical zirconium 40kg, yttrium oxalate 9kg mixes through mixer and to make mixture charge, all the other manufacture method are with embodiment 1.
Embodiment 4
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content in 96% electric smelting desilicated zirconia 97kg, yttrium carbonate 4.5kg, calcium hydroxide 3.4kg, magnesium oxide 3kg, mix through mixer and to make mixture charge, all the other manufacture method are with embodiment 1.
Embodiment 5
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows:
(1) with zirconic content greater than 96% natural baddeleyite 92kg, yttrium oxide 4kg, magnesiumcarbonate 2kg mixes through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 2700 ℃, is cast into piece after being fused into stone roller or fusing;
(3) melt in the step (2) is adopted wind cooling temperature lowering, be reduced to room temperature after, with the melt fragmentation.
Embodiment 6
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% natural baddeleyite 88kg, yttrium oxide 8kg, calcium oxide 2kg mixes through mixer and to make mixture charge, all the other manufacture method are with embodiment 5.
Embodiment 7
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% electric smelting desilicated zirconia 40kg, chemical zirconium 45kg, yttrium carbonate 4.5kg, magnesium hydroxide 1kg mixes through mixer and to make mixture charge, and all the other manufacture method are with embodiment 1.
Embodiment 8
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows:
(1) with zirconic content greater than 96% electric smelting desilicated zirconia 20kg, chemical zirconium 20kg, natural baddeleyite 57kg, yttrium oxide 2kg, yttrium oxalate 9kg, calcium hydroxide 1kg mixes through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 3200 ℃, is cast into piece after being fused into stone roller or fusing;
(3) melt in the step (2) is adopted water-cooled cooling, rate of temperature fall is 100 ℃/hour, be reduced to 40 ℃ after, with the melt fragmentation.
Embodiment 9
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% chemical zirconium 40kg, natural baddeleyite 57kg, yttrium carbonate 4kg, calcium oxide 2kg, magnesium oxide 1kg, mix through mixer and to make mixture charge, all the other manufacture method are with embodiment 8.
Embodiment 10
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% natural baddeleyite 85kg, yttrium oxide 8kg, lime carbonate 3.4kg, mix through mixer and to make mixture charge, all the other manufacture method are with embodiment 8.
Embodiment 11
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% electric smelting desilicated zirconia 10kg, chemistry zirconium 87kg, yttrium oxide 4kg, lime carbonate 2kg, magnesium oxide 1kg, mix through mixer and to make mixture charge, all the other manufacture method are with embodiment 8.
Embodiment 12
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows:
(1) with zirconic content greater than 96% chemical zirconium 97kg, yttrium oxide 5.5kg, calcium oxide 3.4kg, magnesiumcarbonate 1kg mixes through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 2800 ℃, is cast into piece after being fused into stone roller or fusing;
(3) melt in the step (2) is adopted wind cooling temperature lowering, rate of temperature fall be 100 ℃/hour be reduced to 50 ℃ after, with the melt fragmentation.
Embodiment 13
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% natural baddeleyite 88kg, yttrium oxide 3kg, yttrium carbonate 1kg, lime carbonate 1kg, magnesium oxide 1kg, mix through mixer and to make mixture charge, all the other manufacture method are with embodiment 12.
Embodiment 14
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows:
(1) with zirconic content greater than 96% electric smelting desilicated zirconia 30kg, chemical zirconium 40kg, natural baddeleyite 25kg, yttrium oxide 1kg, yttrium oxalate 4kg, yttrium carbonate 1.5kg, calcium oxide 1kg, calcium hydroxide 1kg, magnesium oxide 1.5kg mixes through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 3200 ℃, is cast into piece after being fused into stone roller or fusing;
(3) melt in the step (2) is adopted water-cooled cooling, rate of temperature fall is 50 ℃/hour, be reduced to 100 ℃ after, with the melt fragmentation.
Embodiment 15
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows:
(1) with zirconic content greater than 96% natural baddeleyite 92kg, yttrium oxide 3kg, calcium oxide 1kg, magnesium oxide 1kg mixes through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 2700 ℃, is cast into piece after being fused into stone roller or fusing;
(3) melt in the step (2) is adopted water-cooled cooling, rate of temperature fall is 100 ℃/hour, be reduced to 60 ℃ after, with the melt fragmentation.
Embodiment 16
The electrically smelting making method of yttrium-stabile zirconium dioxide, its operation steps is as follows: with zirconic content greater than 96% electric smelting desilicated zirconia 97kg, yttrium oxide 6.5kg, calcium oxide 1kg, mix through mixer and to make mixture charge, all the other manufacture method are with embodiment 15.
Claims (5)
1. the electrically smelting making method of yttrium-stabile zirconium dioxide, it is characterized in that: its operation steps is as follows:
(1) with monocline type zirconium white 80～97 weight parts, compound 3～9 weight parts of yttrium, compound 0～3.4 weight part of calcium, compound 0～3 weight part of magnesium mix through mixer and to make mixture charge;
(2) will the mixture charge in the step (1) drop in the electric arc furnace and carry out melting, the temperature of melting is 2700～3500 ℃, is cast into piece after being fused into stone roller or fusing;
(3) with the melt in the step (2) cooling, be reduced to room temperature～100 ℃ after, with the melt fragmentation.
2. the electrically smelting making method of yttrium-stabile zirconium dioxide according to claim 1, it is characterized in that: zirconic content is greater than 96% in the described monocline type zirconium white.
3. the electrically smelting making method of yttrium-stabile zirconium dioxide according to claim 2 is characterized in that: described monocline type zirconium white derives from any one or at least two kinds in electric smelting desilicated zirconia, chemical zirconium or the natural baddeleyite.
4. the electrically smelting making method of yttrium-stabile zirconium dioxide according to claim 1, it is characterized in that: the compound of described yttrium is any one or at least two kinds in yttrium oxide, yttrium oxalate, the yttrium carbonate, and the compound of described calcium is any one or at least two kinds in calcium oxide, calcium hydroxide, the lime carbonate; The compound of magnesium is any one or at least two kinds in magnesium oxide, magnesium hydroxide, the magnesiumcarbonate.
5. the electrically smelting making method of yttrium-stabile zirconium dioxide according to claim 1 is characterized in that: melt adopts water-cooled or wind cooling temperature lowering in the described step (3), and rate of temperature fall is 50～100 ℃/hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101714335A CN102241510A (en) | 2010-05-13 | 2010-05-13 | Electric melting method for manufacturing yttria stabilized zirconia |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232238A (en) * | 2013-04-25 | 2013-08-07 | 三祥新材股份有限公司 | Preparation method of high-strength electric smelting zirconia ceramic ball |
| CN106904963A (en) * | 2017-03-02 | 2017-06-30 | 山东磊宝锆业科技股份有限公司 | The production method of continuous casting quartz stove zircite product |
| CN106915963A (en) * | 2017-02-21 | 2017-07-04 | 山东锆铪耐火材料科技有限公司 | The zirconia material of shaping can be poured |
| CN107129297A (en) * | 2017-05-08 | 2017-09-05 | 三祥新材股份有限公司 | A kind of preparation method of zirconium oxide composite bioceramic material |
| CN112142478A (en) * | 2019-06-28 | 2020-12-29 | 比亚迪股份有限公司 | Zirconia ceramic powder, zirconia ceramic, preparation method of zirconia ceramic and electronic equipment shell |
| CN115159979A (en) * | 2022-07-07 | 2022-10-11 | 郑州振中电熔新材料有限公司 | Method for manufacturing electric melting calcium-yttrium composite stable zirconia by using yttrium oxide waste |
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| CN1524828A (en) * | 2003-09-15 | 2004-09-01 | 宜兴新兴锆业有限公司 | Modified partially stabilized zirconia |
| CN101244842A (en) * | 2008-03-18 | 2008-08-20 | 淄博市周村磊宝耐火材料有限公司 | Electric melting production process for steady zirconium dioxide raw material and technique for producing steady zirconium dioxide product |
| CN101503304A (en) * | 2009-03-26 | 2009-08-12 | 中钢集团洛阳耐火材料研究院有限公司 | Low temperature method for manufacturing high thermal shock superhigh temperature zircite product |
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| CN1294100A (en) * | 2000-12-12 | 2001-05-09 | 田维 | Kiln aparatus and method for preparing zirconium oxide used in electronic industry |
| CN1524828A (en) * | 2003-09-15 | 2004-09-01 | 宜兴新兴锆业有限公司 | Modified partially stabilized zirconia |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232238A (en) * | 2013-04-25 | 2013-08-07 | 三祥新材股份有限公司 | Preparation method of high-strength electric smelting zirconia ceramic ball |
| CN103232238B (en) * | 2013-04-25 | 2014-08-06 | 三祥新材股份有限公司 | Preparation method of high-strength electric smelting zirconia ceramic ball |
| CN106915963A (en) * | 2017-02-21 | 2017-07-04 | 山东锆铪耐火材料科技有限公司 | The zirconia material of shaping can be poured |
| CN106904963A (en) * | 2017-03-02 | 2017-06-30 | 山东磊宝锆业科技股份有限公司 | The production method of continuous casting quartz stove zircite product |
| CN107129297A (en) * | 2017-05-08 | 2017-09-05 | 三祥新材股份有限公司 | A kind of preparation method of zirconium oxide composite bioceramic material |
| CN107129297B (en) * | 2017-05-08 | 2020-07-17 | 三祥新材股份有限公司 | Preparation method of zirconia composite biological ceramic material |
| CN112142478A (en) * | 2019-06-28 | 2020-12-29 | 比亚迪股份有限公司 | Zirconia ceramic powder, zirconia ceramic, preparation method of zirconia ceramic and electronic equipment shell |
| CN112142478B (en) * | 2019-06-28 | 2022-06-10 | 比亚迪股份有限公司 | Zirconia ceramic powder, zirconia ceramic, preparation method of zirconia ceramic and electronic equipment shell |
| CN115159979A (en) * | 2022-07-07 | 2022-10-11 | 郑州振中电熔新材料有限公司 | Method for manufacturing electric melting calcium-yttrium composite stable zirconia by using yttrium oxide waste |
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Address after: 888 box 452384, Xinmi City, Henan Province, Zhengzhou Applicant after: Zhengzhou Zhenzhong Fuzed New Materials Co., Ltd. Address before: 888 box 452384, Xinmi City, Henan Province, Zhengzhou Applicant before: Zhengzhou Zhenzhong Electric Zirconium Melting INdustry Co., Ltd. |
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Application publication date: 20111116 |