CN102515798A - High corrosion resistant integral stopper for continuous casting - Google Patents
High corrosion resistant integral stopper for continuous casting Download PDFInfo
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- CN102515798A CN102515798A CN2011104154876A CN201110415487A CN102515798A CN 102515798 A CN102515798 A CN 102515798A CN 2011104154876 A CN2011104154876 A CN 2011104154876A CN 201110415487 A CN201110415487 A CN 201110415487A CN 102515798 A CN102515798 A CN 102515798A
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Abstract
The invention relates to the technical field of carbonaceous refractory materials, especially to a high corrosion resistant integral stopper for continuous casting. The stopper contains a stopper head and a stopper body, wherein the stopper body comprises the following components of: by weight, 15-25 parts of graphite, 20-70 parts of magnesium aluminate spinel, 0-30 parts of magnesia, 0-10 parts of alumina, 1-9 parts of an additive, and phenolic resin which accounts for 8-12% of the total weight of the above ingredients, wherein the additive contains one or more ingredients selected from metal silicon powder, metal aluminium powder and boron carbide. By the optimization of the material of the stopper body, porosity of the stopper body can be reduced, slag penetration resistance can be enhanced, erosion of alkaline slag to the stopper body of the integral stopper can be decreased, and service life of the stopper can be raised.
Description
Technical field
The present invention relates to the carbon containing refractory technical field, particularly relate to a kind of continuous casting and use the high anti-corrosion integral stopper rod.
Background technology
Integral stopper rod is the critical function refractory materials during continuous casting steel machine is produced, and it cooperates with tundish upper nozzle, and control flow into the molten steel flow the mold from tundish.In the continuous casting production process,, often adopt alkaline tundish covering flux, be beneficial to the inclusion in the absorption molten steel in order to improve the cleanliness factor of molten steel; In order to reduce the continuous casting steel machine production cost, require tundish and wherein supporting functional refractories such as integral stopper rod to use long lifetime.In the work-ing life of integral stopper rod, directly influence normally carrying out of continuous casting steel machine.
At present, integral stopper rod rod body adopts the aluminium blacking usually, like Chinese patent CN101134238; In continuous casting production process; Because stopper and tundish covering flux contact position oxygen level are higher, behind the oxidation of coal in the alumina-carbon material, short texture; Form basic slag after the alkaline covering agent fusion, the K in the slag
2O, Na
2O, CaO etc. are penetrated in the stopper rod stature material, with Al in the alumina-carbon material
2O
3Reaction, it is serious to cause stopper rod body to corrode, and reduce work-ing life.In order to prevent that stopper is etched fracture, have the overstriking of stopper rod body, like Chinese patent CN102166646A; The zirconium carbon material in the compound costliness in stopper rod body slag line place that has is like Chinese patent CN101486092.The compound zirconium carbon material of stopper overstriking or excellent body slag line place all can improve the manufacturing cost of stopper.
Summary of the invention
The purpose of this invention is to provide a kind of continuous casting and use the high anti-corrosion integral stopper rod; Through optimizing the material of stopper rod body, can reduce the void content of stopper rod body, improve anti-slag penetration property; Reduce the erosion of basic slag, the work-ing life of improving stopper to integral stopper rod rod body.
For realizing above-mentioned purpose, the present invention realizes through following technical scheme:
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: graphite 15～25, magnesium-aluminium spinel 20～70, magnesia 0～30, aluminum oxide 0～10, additive 1～9 add the resol of mentioned component gross weight 8%～12%; Described additive is selected from one or more in metallic silicon power, metallic aluminium powder, the norbide;
Described graphite adopts crystalline flake graphite, and carbon content is greater than 95%.
Described magnesium-aluminium spinel adopts electric melting magnesium aluminum spinel.
Described magnesia is that electrosmelted magnesite clinker, its content of magnesia are greater than 96%.
Described aluminum oxide is a calcined alumina, and its granularity is less than 10 μ m.
Compared with prior art, the invention has the beneficial effects as follows:
1) because magnesium-aluminium spinel, magnesia in the excellent stature material contain the Natural manganese dioxide composition, compares, be difficult for and the basic slag reaction with the aluminum oxide in the aluminium blacking;
2) owing to containing magnesia and granularity calcined alumina in this material less than 10 μ m; Original position generates spinel in the stopper use; Volumetric expansion, the void content of reduction stopper rod stature material improves anti-slag penetration property; Thereby reduce the erosion of basic slag, the work-ing life of improving integral stopper rod to integral stopper rod rod body;
3) owing to the raising of corrosion resistance, excellent body does not need the zirconium carbon material of compound costliness without overstriking yet, and the stopper manufacturing cost reduces.
Embodiment
Through embodiment technology contents of the present invention is further described below.
Embodiment 1
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 18 parts in graphite, 50 parts of magnesium-aluminium spinels, 20 parts in magnesia, 10 parts in aluminum oxide, 1 part of silica flour, 0.5 part of aluminium powder, 0.5 part of norbide add the resol of mentioned component gross weight 9%.Caput adopts conventional stopper caput material, is not described in detail here.
Said continuous casting is with the ME of high anti-corrosion integral stopper rod, and step is following:
1) batching: weigh up various raw materials subsequent use according to charger sheet.
2) mix: add the material for preparing in the high-speed mixer, add resol, after mixing, drying for standby.
3) moulding: join in the mould that combines moulding in waiting static pressure, forming pressure 130MPa to the stopper head material that mixes, stopper rod body material by drawing respectively.
4) burn till: the product of forming burns till under reducing atmosphere, and 1000 ℃ are incubated 6 hours.。
5) processing: machine by drawing.
6) apply: at outer wall brushing antioxidizing paint.
7) packing: pack after inspection.
Through detecting, the physical performance index of stopper rod body is: void content 11.3%, strength at normal temperature 13.2Mpa, volume density 2.62g/cm
3
Embodiment 2
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 18 parts in graphite, 55 parts of magnesium-aluminium spinels, 15 parts in magnesia, 7 parts in aluminum oxide, 2 parts of silica flours, 0.5 part of aluminium powder, 2.5 parts of norbides add the resol of mentioned component gross weight 9%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 12.5%, strength at normal temperature 14.3Mpa, volume density 2.60g/cm
3
Embodiment 3
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 20 parts in graphite, 45 parts of magnesium-aluminium spinels, 25 parts in magnesia, 7 parts in aluminum oxide, 2 parts of silica flours, 1 part of norbide add the resol of mentioned component gross weight 10%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 12.2%, strength at normal temperature 13.5Mpa, volume density 2.58g/cm
3
Embodiment 4
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 20 parts in graphite, 40 parts of magnesium-aluminium spinels, 26 parts in magnesia, 10 parts in aluminum oxide, 3 parts of silica flours, 1 part of norbide add the resol of mentioned component gross weight 10%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 13.8%, strength at normal temperature 11.8Mpa, volume density 2.59g/cm
3
Embodiment 5
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 22 parts in graphite, 35 parts of magnesium-aluminium spinels, 30 parts in magnesia, 7 parts in aluminum oxide, 3 parts of silica flours, 0.5 part of aluminium powder, 2.5 parts of norbides add the resol of mentioned component gross weight 10%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 13.1%, strength at normal temperature 12.6Mpa, volume density 2.57g/cm
3
Embodiment 6
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 18 parts in graphite, 65 parts of magnesium-aluminium spinels, 7 parts in aluminum oxide, 2 parts of silica flours, 0.5 part of aluminium powder, 2.5 parts of norbides add the resol of mentioned component gross weight 10%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 12.8%, strength at normal temperature 13.6Mpa, volume density 2.58g/cm
3
Embodiment 7
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 22 parts in graphite, 70 parts of magnesium-aluminium spinels, 4 parts in aluminum oxide, 1 part of silica flour, 0.5 part of aluminium powder, 0.5 part of norbide add the resol of mentioned component gross weight 12%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 12.7%, strength at normal temperature 13.1Mpa, volume density 2.56g/cm
3
Embodiment 8
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 15 parts in graphite, 50 parts of magnesium-aluminium spinels, 6 parts in aluminum oxide, 2 parts of silica flours, 0.5 part of aluminium powder, 1.5 parts of norbides add the resol of mentioned component gross weight 9%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 13.0%, strength at normal temperature 13.4Mpa, volume density 2.60g/cm
3
Embodiment 9
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 25 parts in graphite, 55 parts of magnesium-aluminium spinels, 20 parts in magnesia, 2 parts of silica flours, 0.5 part of aluminium powder, 1.5 parts of norbides add the resol of mentioned component gross weight 11%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 12.1%, strength at normal temperature 11.9Mpa, volume density 2.54g/cm
3
Embodiment 10
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 20 parts in graphite, 40 parts of magnesium-aluminium spinels, 30 parts in magnesia, 1 part of silica flour, 0.5 part of aluminium powder, 0.5 part of norbide add the resol of mentioned component gross weight 10%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 13.5%, strength at normal temperature 12.4Mpa, volume density 2.56g/cm
3
Embodiment 11
A kind of continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; The rod body is made up of following compositions by weight proportion: 16 parts in graphite, 65 parts of magnesium-aluminium spinels, 13 parts in magnesia, 2 parts of silica flours, 1 part of norbide add the resol of mentioned component gross weight 9%.Caput adopts conventional stopper caput material.Said continuous casting with the ME of high anti-corrosion integral stopper rod with embodiment 1.
Through detecting, the physical performance index of stopper rod body is: void content 13.5%, strength at normal temperature 14.0Mpa, volume density 2.61g/cm
3
In the foregoing description, described graphite adopts crystalline flake graphite, and carbon content is greater than 95%; Described magnesium-aluminium spinel adopts electric melting magnesium aluminum spinel; Described magnesia is that electrosmelted magnesite clinker, its content of magnesia are greater than 96%; Described aluminum oxide is a calcined alumina, and its granularity is less than 10 μ m.
Through a large amount of experimental verifications, the composition of the stopper rod body described in the technical scheme of the present invention is according to described part by weight, and the stopper of processing all can reach technique effect of the present invention, only provides above embodiment here and verifies.
Claims (5)
1. a continuous casting is used the high anti-corrosion integral stopper rod; Form by caput and excellent body; It is characterized in that; The rod body is made up of following compositions by weight proportion: graphite 15～25, magnesium-aluminium spinel 20～70, magnesia 0～30, aluminum oxide 0～10, additive 1～9 add the resol of mentioned component gross weight 8%～12%; Described additive is selected from one or more in metallic silicon power, metallic aluminium powder, the boron carbide powder.
2. a kind of continuous casting according to claim 1 is used the high anti-corrosion integral stopper rod, it is characterized in that, described graphite adopts crystalline flake graphite, and carbon content is greater than 95%.
3. a kind of continuous casting according to claim 1 is used the high anti-corrosion integral stopper rod, it is characterized in that, described magnesium-aluminium spinel adopts electric melting magnesium aluminum spinel.
4. a kind of continuous casting according to claim 1 is used the high anti-corrosion integral stopper rod, it is characterized in that, described magnesia is that electrosmelted magnesite clinker, its content of magnesia are greater than 96%.
5. a kind of continuous casting according to claim 1 is used the high anti-corrosion integral stopper rod, it is characterized in that, described aluminum oxide is a calcined alumina, and its granularity is less than 10 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110415487 CN102515798B (en) | 2011-12-12 | 2011-12-12 | High corrosion resistant integral stopper for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110415487 CN102515798B (en) | 2011-12-12 | 2011-12-12 | High corrosion resistant integral stopper for continuous casting |
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| Publication Number | Publication Date |
|---|---|
| CN102515798A true CN102515798A (en) | 2012-06-27 |
| CN102515798B CN102515798B (en) | 2013-09-25 |
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|---|---|---|---|
| CN 201110415487 Active CN102515798B (en) | 2011-12-12 | 2011-12-12 | High corrosion resistant integral stopper for continuous casting |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008638A (en) * | 2012-12-18 | 2013-04-03 | 北京利尔高温材料股份有限公司 | Composite integral stopper and manufacture method thereof |
| CN103232254A (en) * | 2013-06-05 | 2013-08-07 | 王世泰 | Continuous casting functional fireproof piece and preparation technology thereof |
| CN103264157A (en) * | 2013-06-05 | 2013-08-28 | 王世泰 | Functional fire-proof part for continuous casting and manufacturing method thereof |
| CN103601508A (en) * | 2013-11-13 | 2014-02-26 | 鞍山市量子炉材集团有限公司 | Environment-friendly RH refining furnace lining brick and preparation method thereof |
| CN106521282A (en) * | 2016-11-16 | 2017-03-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Ladder ring stopper rod |
| CN106747490A (en) * | 2016-11-22 | 2017-05-31 | 湖南湘钢瑞泰科技有限公司 | A kind of magnesia carbon brick and preparation method thereof |
| CN106938936A (en) * | 2017-03-24 | 2017-07-11 | 河南省西保冶材集团有限公司 | A kind of integrated stopper rod used for continuous casting and its production technology |
| CN107298586A (en) * | 2017-07-04 | 2017-10-27 | 洛阳理工学院 | A kind of pipe line steel continuous casting anti-erosion stopper rod of tundish |
| CN111470851A (en) * | 2019-08-27 | 2020-07-31 | 北京利尔高温材料股份有限公司 | Rod body material for integral stopper rod |
| CN112094116A (en) * | 2020-09-25 | 2020-12-18 | 广东韶钢松山股份有限公司 | Stopper rod for producing free-cutting steel and preparation method thereof |
| CN113526965A (en) * | 2020-04-17 | 2021-10-22 | 宝山钢铁股份有限公司 | Stopper rod for high-oxygen steel continuous casting |
| CN115108842A (en) * | 2021-03-18 | 2022-09-27 | 宝山钢铁股份有限公司 | Long nozzle for high-oxygen steel continuous casting |
| CN117430413A (en) * | 2023-12-20 | 2024-01-23 | 山西昊业新材料开发有限公司 | Stopper rod for continuous casting and preparation method thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008638A (en) * | 2012-12-18 | 2013-04-03 | 北京利尔高温材料股份有限公司 | Composite integral stopper and manufacture method thereof |
| CN103232254A (en) * | 2013-06-05 | 2013-08-07 | 王世泰 | Continuous casting functional fireproof piece and preparation technology thereof |
| CN103264157A (en) * | 2013-06-05 | 2013-08-28 | 王世泰 | Functional fire-proof part for continuous casting and manufacturing method thereof |
| CN103601508A (en) * | 2013-11-13 | 2014-02-26 | 鞍山市量子炉材集团有限公司 | Environment-friendly RH refining furnace lining brick and preparation method thereof |
| CN106521282B (en) * | 2016-11-16 | 2018-05-01 | 攀钢集团攀枝花钢铁研究院有限公司 | Cascade ring stopper |
| CN106521282A (en) * | 2016-11-16 | 2017-03-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Ladder ring stopper rod |
| CN106747490A (en) * | 2016-11-22 | 2017-05-31 | 湖南湘钢瑞泰科技有限公司 | A kind of magnesia carbon brick and preparation method thereof |
| CN106747490B (en) * | 2016-11-22 | 2019-11-12 | 湖南湘钢瑞泰科技有限公司 | A kind of magnesia carbon brick and preparation method thereof |
| CN106938936A (en) * | 2017-03-24 | 2017-07-11 | 河南省西保冶材集团有限公司 | A kind of integrated stopper rod used for continuous casting and its production technology |
| CN107298586A (en) * | 2017-07-04 | 2017-10-27 | 洛阳理工学院 | A kind of pipe line steel continuous casting anti-erosion stopper rod of tundish |
| CN111470851A (en) * | 2019-08-27 | 2020-07-31 | 北京利尔高温材料股份有限公司 | Rod body material for integral stopper rod |
| CN113526965A (en) * | 2020-04-17 | 2021-10-22 | 宝山钢铁股份有限公司 | Stopper rod for high-oxygen steel continuous casting |
| CN113526965B (en) * | 2020-04-17 | 2023-04-07 | 宝山钢铁股份有限公司 | Stopper rod for high-oxygen steel continuous casting |
| CN112094116A (en) * | 2020-09-25 | 2020-12-18 | 广东韶钢松山股份有限公司 | Stopper rod for producing free-cutting steel and preparation method thereof |
| CN115108842A (en) * | 2021-03-18 | 2022-09-27 | 宝山钢铁股份有限公司 | Long nozzle for high-oxygen steel continuous casting |
| CN117430413A (en) * | 2023-12-20 | 2024-01-23 | 山西昊业新材料开发有限公司 | Stopper rod for continuous casting and preparation method thereof |
| CN117430413B (en) * | 2023-12-20 | 2024-03-12 | 山西昊业新材料开发有限公司 | Stopper rod for continuous casting and preparation method thereof |
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Owner name: UNIVERSITY OF SCIENCE AND TECHNOLOGY LIAONING DONG Effective date: 20130129 Owner name: LIAONING SCIENCE AND TECHNOLOGY UNIV. Free format text: FORMER OWNER: UNIVERSITY OF SCIENCE AND TECHNOLOGY LIAONING DONGFANG JUYE ADVANCED CERAMICS CO., LTD. Effective date: 20130129 |
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Inventor after: Li Bo Inventor after: Li Shibao Inventor after: Chen Yongfan Inventor after: Wang Rengui Inventor after: Li Tao Inventor after: Liu Shaojie Inventor after: Xu Quansheng Inventor after: Xu Zhankui Inventor after: Gao Yuming Inventor before: Li Shibao Inventor before: Li Bo Inventor before: Wang Rengui Inventor before: Li Tao Inventor before: Liu Shaojie Inventor before: Xu Quansheng Inventor before: Xu Zhankui Inventor before: Gao Yuming |
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Free format text: CORRECT: INVENTOR; FROM: LI SHIBAO LI BO WANG RENGUI LI TAO LIU SHAOJIE XU QUANSHENG XU ZHANKUI GAOYUMING TO: LI BO LI SHIBAO CHEN YONGFAN WANG RENGUI LI TAO LIU SHAOJIE XU QUANSHENG XU ZHANKUI GAO YUMING Free format text: CORRECT: ADDRESS; FROM: 114042 ANSHAN, LIAONING PROVINCE TO: 114044 ANSHAN, LIAONING PROVINCE |
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Effective date of registration: 20130129 Address after: 114044 Anshan province hi tech Zone, thousands of mountain road, No. 185, No. Applicant after: Liaoning Science and Technology Univ. Applicant after: USTL-Oriental Giant Advanced Ceramic Co., Ltd. Address before: Anshan City, Liaoning Province victory road 114042 Lishan District No. 969 Applicant before: USTL-Oriental Giant Advanced Ceramic Co., Ltd. |
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