CN114292093A - Corundum spinel carbon-free prefabricated part for clean steelmaking - Google Patents
Corundum spinel carbon-free prefabricated part for clean steelmaking Download PDFInfo
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- CN114292093A CN114292093A CN202111614159.9A CN202111614159A CN114292093A CN 114292093 A CN114292093 A CN 114292093A CN 202111614159 A CN202111614159 A CN 202111614159A CN 114292093 A CN114292093 A CN 114292093A
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- China
- Prior art keywords
- clean
- steel
- steelmaking
- prefabricated part
- carbon
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- 229910052593 corundum Inorganic materials 0.000 title claims abstract description 13
- 239000010431 corundum Substances 0.000 title claims abstract description 13
- 238000009628 steelmaking Methods 0.000 title claims abstract description 11
- 229910052596 spinel Inorganic materials 0.000 title claims abstract description 9
- 239000011029 spinel Substances 0.000 title claims abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002270 dispersing agent Substances 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 239000011819 refractory material Substances 0.000 abstract description 6
- 239000002893 slag Substances 0.000 abstract description 5
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000011449 brick Substances 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- UAMZXLIURMNTHD-UHFFFAOYSA-N dialuminum;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Al+3] UAMZXLIURMNTHD-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- -1 clean steel making Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
A carbon-free prefabricated part of corundum spinel for clean steelmaking, which comprises plate-shaped corundum: 65-78%, high-purity magnesium powder: 3-6%, alumina micropowder: 5-10%, hydrated alumina: 3-7%, silicon micropowder: 0.5-2%, dispersant: 0.1-0.5%, the sum of the weight of the components is 100%; the invention has the advantages of high construction speed, high strength, stable thermal shock performance, strong steel slag and molten steel erosion resistance, low consumption of refractory materials per ton of steel, and effects of clean steel making, raw material saving, service life prolonging, workload reduction, safety and the like.
Description
Technical Field
The invention relates to a work lining of a steel ladle, in particular to a corundum spinel carbon-free prefabricated part for clean steelmaking.
Background
At present, most of steel plant ladle working linings are made of carbon-containing refractory materials, and the alumina-magnesia carbon bricks and magnesia carbon bricks are used as ladle working layer materials for a long time because of good thermal shock resistance, high refractoriness, excellent slag resistance and structural stripping resistance, but the alumina-magnesia carbon bricks have high thermal conductivity, can cause temperature drop of molten steel to a certain degree in the refining process, and often cause cladding overheating and deformation. In addition, as a carbonaceous material, molten steel is easily carburized when low carbon steel is produced, and thus, the conventional almg brick is not suitable for the production of low carbon steel and ultra low carbon steel.
In recent years, refractory materials are developed towards the direction of low consumption and low pollution, and castable refractory materials are rapidly developed due to the advantages of simple production process, low cost, good integrity and the like, wherein a ladle working layer made of a corundum spinel carbon-free prefabricated member is widely applied, and the production of low-carbon steel and ultra-low-carbon steel is effectively promoted.
In view of the above, a corundum spinel carbon-free preform for clean steelmaking has been developed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a corundum spinel carbon-free prefabricated part for clean steelmaking, which has the advantages of high construction speed, high strength, stable thermal shock performance, strong steel slag and molten steel erosion resistance, low consumption of refractory materials per ton of steel, and the functions of clean steelmaking, raw material saving, service life improvement, workload reduction, safety and the like.
In order to achieve the purpose, the invention adopts the following technical scheme: a carbon-free prefabricated part of corundum spinel for clean steelmaking, which comprises plate-shaped corundum: 65-78%, high-purity magnesium powder: 3-6%, alumina micropowder: 5-10%, hydrated alumina: 3-7%, silicon micropowder: 0.5-2%, dispersant: 0.1-0.5%, and the sum of the weight of the components is 100%.
The invention has the beneficial effects that: the invention has the advantages of high construction speed, high strength, stable thermal shock performance, strong steel slag and molten steel erosion resistance, low consumption of refractory materials per ton of steel, clean steel making, raw material saving, service life prolonging, workload reduction, safety and the like;
the physical and chemical indexes of the invention are as follows:
the data show that the prefabricated part has micro-expansibility after being treated at 1600 ℃ for 3 hours, so that the integrity and the safety of a working layer are ensured, the prefabricated part also has excellent molten steel and steel slag erosion resistance, the service life can reach more than 200 times, and the prefabricated part is far higher than that of common alumina-magnesia carbon bricks and magnesia carbon bricks.
Detailed Description
The present invention will be described in further detail with reference to the following examples and embodiments:
example 1
Plate corundum: 65-78%, high-purity magnesium powder: 3-6%, alumina micropowder: 5-10%, hydrated alumina: 3-7%, silicon micropowder: 0.5-2%, dispersant: 0.1-0.5%, and the sum of the weight of the components is 100%.
Claims (1)
1. A corundum spinel carbon-free prefabricated part for clean steelmaking is characterized in that: plate corundum: 65-78%, high-purity magnesium powder: 3-6%, alumina micropowder: 5-10%, hydrated alumina: 3-7%, silicon micropowder: 0.5-2%, dispersant: 0.1-0.5%, and the sum of the weight of the components is 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614159.9A CN114292093A (en) | 2021-12-27 | 2021-12-27 | Corundum spinel carbon-free prefabricated part for clean steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111614159.9A CN114292093A (en) | 2021-12-27 | 2021-12-27 | Corundum spinel carbon-free prefabricated part for clean steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114292093A true CN114292093A (en) | 2022-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111614159.9A Pending CN114292093A (en) | 2021-12-27 | 2021-12-27 | Corundum spinel carbon-free prefabricated part for clean steelmaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114292093A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115947590A (en) * | 2022-11-03 | 2023-04-11 | 攀钢冶金材料有限责任公司 | RH insert tube castable and production method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1939875A (en) * | 2006-09-07 | 2007-04-04 | 浙江大学 | Thermal-knock resisting diamond spar-spinele refractory materials and its production |
| CN103121850A (en) * | 2012-07-04 | 2013-05-29 | 卫辉熔金高温材料有限责任公司 | Non-cement-bound corundum fabricated part and production method thereof |
| CN103539467A (en) * | 2013-10-16 | 2014-01-29 | 马鞍山利尔开元新材料有限公司 | Mechanically-pressed carbon-free corundum spinel ladle brick as well as preparation method thereof |
| CN104072169A (en) * | 2014-07-11 | 2014-10-01 | 北京科技大学 | Carbon-containing castable for refined steel ladle working lining |
| CN107500786A (en) * | 2017-08-18 | 2017-12-22 | 上海利尔耐火材料有限公司 | A kind of carbon-free ladle gunning refractory and its preparation method and application |
| US20180319710A1 (en) * | 2015-11-06 | 2018-11-08 | Wuhan University Of Science And Technology | Lightweight micro-closed-pore alumina composite refractory material and method preparing same |
-
2021
- 2021-12-27 CN CN202111614159.9A patent/CN114292093A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1939875A (en) * | 2006-09-07 | 2007-04-04 | 浙江大学 | Thermal-knock resisting diamond spar-spinele refractory materials and its production |
| CN103121850A (en) * | 2012-07-04 | 2013-05-29 | 卫辉熔金高温材料有限责任公司 | Non-cement-bound corundum fabricated part and production method thereof |
| CN103539467A (en) * | 2013-10-16 | 2014-01-29 | 马鞍山利尔开元新材料有限公司 | Mechanically-pressed carbon-free corundum spinel ladle brick as well as preparation method thereof |
| CN104072169A (en) * | 2014-07-11 | 2014-10-01 | 北京科技大学 | Carbon-containing castable for refined steel ladle working lining |
| US20180319710A1 (en) * | 2015-11-06 | 2018-11-08 | Wuhan University Of Science And Technology | Lightweight micro-closed-pore alumina composite refractory material and method preparing same |
| CN107500786A (en) * | 2017-08-18 | 2017-12-22 | 上海利尔耐火材料有限公司 | A kind of carbon-free ladle gunning refractory and its preparation method and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115947590A (en) * | 2022-11-03 | 2023-04-11 | 攀钢冶金材料有限责任公司 | RH insert tube castable and production method thereof |
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