CN104001883A - Submersed nozzle for washing resistance of continuous-casting high manganese and high oxygen steel - Google Patents
Submersed nozzle for washing resistance of continuous-casting high manganese and high oxygen steel Download PDFInfo
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- CN104001883A CN104001883A CN201410179591.3A CN201410179591A CN104001883A CN 104001883 A CN104001883 A CN 104001883A CN 201410179591 A CN201410179591 A CN 201410179591A CN 104001883 A CN104001883 A CN 104001883A
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Abstract
The invention provides a submersed nozzle for washing resistance of continuous-casting high manganese and high oxygen steel. The submersed nozzle comprises, by weight, 50 percent to 65 percent of carbon refractory matter recycled materials, 10 percent to 25 percent of crystalline flake graphite, 5 percent to 10 percent of fused silica, 5 percent to 15 percent of alpha alumina micro powder, 1 percent to 5 percent of silicon metal powder, 1 percent to 5 percent of green silicon carbide and 5 percent to 15 percent of liquid phenolic resin. Original materials of the nozzle with the not high performance requirement are replaced with the recycled materials, and manufacturing cost of products can be greatly reduced.
Description
Technical field
The present invention relates to fire resisting material field, specifically a kind of continuous casting Gao Meng, high-oxygen steel resistance to erosion submersed nozzle.
Background technology
Along with the development of steel and iron industry, refractories industry has also obtained significant progress both at home and abroad.Aluminum-carbon refractory material is a kind of novel refractory that starts rise about the eighties in last century.Be mainly used at first refractory brick aspect, little by little promote afterwards to continuous casting tundish aspect.For the develop rapidly of steel industry continuous casting technology provides indispensable technical support.
Continuous casting is commonly called as continuous-casting three-main-product with aluminum-carbon refractory material, mainly long nozzle, integral column of sagger, submersed nozzle, consists of.As one of aluminium carbon functional material, submersed nozzle design of material is generally all with Al
2o
3-C material is main.By adding some necessary additives as carborundum, metallic silicon, boron carbide etc., the antioxygenic property of raising material, guarantees that product reaches continuous casting of molten steel requirement.
In actual production process, submersed nozzle is had relatively high expectations to the antiscour antioxygenic property at inwall place, the mouth of a river, and bulk material aspect is relatively low to its instructions for use.Existing intrusive mood mouth of a river body and inwall are used identical material, have caused a large amount of wastes.Do not affecting under the prerequisite in service life of the mouth of a river, the material that improves the intrusive mood mouth of a river can reduce production costs.
Summary of the invention
The present invention, in order to solve the problem of prior art, provides a kind of resistant to elevated temperatures continuous casting Gao Meng, high-oxygen steel submersed nozzle, has improved the service life at the mouth of a river and has reduced cost.
A kind of continuous casting Gao Meng of the present invention, high-oxygen steel resistance to erosion submersed nozzle, the raw material that comprises following mass percent: carbon refractory reclaimed materials 50% ~ 65%, crystalline flake graphite 10% ~ 25%, vitreous silica 5% ~ 10%, alpha-aluminium oxide micro mist 5% ~ 15%, metallic silicon power 1% ~ 5%, green silicon carbide 1% ~ 5%, liquid phenolic resin 5% ~ 15%.
Described liquid phenolic aldehyde tree temperature is below 20 ℃, and viscosity is not less than 400Pa.
Described metallic silicon power purity is more than 98%, and granularity is 200 orders, and two kinds of raw material weights are than being 2:1.
Described carbon containing refractory reclaimed materials is the useless brick of aluminum-carbon refractory material, and granularity is 24 orders, 36 orders, 80 orders, 180 orders, and above four kinds of weight ratios are 2:2:1:2.
Described crystalline flake graphite granularity is-100 orders, and content is more than 95%.
Described vitreous silica granularity is 0.2 ~ 0.5 order, 0 ~ 0.2 order, and two kinds of raw material weights are than being 2:1.
Described alpha-aluminium oxide micro mist granularity is that below 10 μ m, purity is more than 99%.
Beneficial effect of the present invention is: delivery port body adopts carbon containing refractory reclaimed materials, and cost of manufacture is than original Al
2o
3-C matter integral column of sagger significantly reduces.
The specific embodiment
The present invention includes the raw material of following mass percent: carbon refractory reclaimed materials 50% ~ 65%, crystalline flake graphite 10% ~ 25%, vitreous silica 5% ~ 10%, alpha-aluminium oxide micro mist 5% ~ 15%, metallic silicon power 1% ~ 5%, green silicon carbide 1% ~ 5%, liquid phenolic resin 5% ~ 15%.
Described liquid phenolic aldehyde tree temperature is below 20 ℃, and viscosity is not less than 400Pa.
Described metallic silicon power purity is more than 98%, and granularity is 200 orders, and two kinds of raw material weights are than being 2:1.
Described carbon containing refractory reclaimed materials is the useless brick of aluminum-carbon refractory material, and granularity is 24 orders, 36 orders, 80 orders, 180 orders, and above four kinds of weight ratios are 2:2:1:2.
Described crystalline flake graphite granularity is-100 orders, and content is more than 95%.
Described vitreous silica granularity is 0.2 ~ 0.5 order, 0 ~ 0.2 order, and two kinds of raw material weights are than being 2:1.
Described alpha-aluminium oxide micro mist granularity is that below 10 μ m, purity is more than 99%.
The production method at this intrusive mood mouth of a river is as follows:
Respectively the inner-wall material preparing, bulk material are put into batch mixer and be mixed uniformly, and (first put inner wall layer material according to order, put again bulk material) the mixed raw material making is dropped in rubber mold, compressing in isostatic pressing machine after sealing, pressure is 120MPa.The product drying of forming, burn till, process, after the operations such as spraying, can pack delivery.
Below by specific embodiment, the invention will be further described.
Embodiment 1
An immersion water gap for continuously casting, adopts following raw material proportioning: carbon containing refractory reclaimed materials: 200kg, crystalline flake graphite: 60kg, vitreous silica: 60kg, alpha-aluminium oxide micro mist: 28kg, metallic silicon power: 12kg, phenolic resins (liquid) 40kg, green silicon carbide 12kg.
According to such scheme, make submersed nozzle, cost of manufacture is than original Al
2o
3-C matter integral column of sagger has reduced by 25%.
Embodiment 2
An immersion water gap for continuously casting, adopts following raw material proportioning: carbon containing refractory reclaimed materials: 225kg, crystalline flake graphite: 55kg, vitreous silica: 50kg, alpha-aluminium oxide micro mist: 20kg, metallic silicon power: 12kg, phenolic resins (liquid) 38kg, green silicon carbide 12kg.
According to such scheme, make submersed nozzle, cost of manufacture is than original Al
2o
3-C mass immersion type sprue has reduced by 30%.
Embodiment 3
An immersion water gap for continuously casting, adopts following raw material proportioning: carbon containing refractory reclaimed materials: 225kg, crystalline flake graphite: 55kg, vitreous silica: 50kg, alpha-aluminium oxide micro mist: 20kg, metallic silicon power: 12kg, phenolic resins (liquid) 38kg, green silicon carbide 10kg.
According to such scheme, make integral column of sagger, cost of manufacture is than original Al
2o
3-C matter integral column of sagger has reduced by 25%.
The concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (7)
1. a continuous casting Gao Meng, high-oxygen steel resistance to erosion submersed nozzle, it is characterized in that comprising the raw material of following mass percent: carbon refractory reclaimed materials 50% ~ 65%, crystalline flake graphite 10% ~ 25%, vitreous silica 5% ~ 10%, alpha-aluminium oxide micro mist 5% ~ 15%, metallic silicon power 1% ~ 5%, green silicon carbide 1% ~ 5%, liquid phenolic resin 5% ~ 15%.
2. continuous casting Gao Meng according to claim 1, high-oxygen steel resistance to erosion submersed nozzle, is characterized in that: described liquid phenolic resin ask temperature 20 ℃ once, viscosity is not less than 400Pa.
3. continuous casting Gao Meng according to claim 1, high-oxygen steel resistance to erosion submersed nozzle, is characterized in that: described metallic silicon power purity is more than 98%, and granularity is 200 orders, and two kinds of raw material weights are than being 2:1.
4. continuous casting Gao Meng according to claim 1, high-oxygen steel resistance to erosion submersed nozzle, it is characterized in that: described carbon containing refractory reclaimed materials is the useless brick of aluminum-carbon refractory material, granularity is 24 orders, 36 orders, 80 orders, 180 orders, and above four kinds of weight ratios are 2:2:1:2.
5. continuous casting Gao Meng according to claim 1, high-oxygen steel resistance to erosion submersed nozzle, is characterized in that: described crystalline flake graphite granularity is-100 orders, and content is more than 95%.
6. continuous casting Gao Meng according to claim 1, high-oxygen steel resistance to erosion submersed nozzle, is characterized in that: described vitreous silica granularity is 0.2 ~ 0.5 order, 0 ~ 0.2 order, and two kinds of raw material weights are than being 2:1.
7. continuous casting Gao Meng according to claim 1, high-oxygen steel resistance to erosion submersed nozzle, is characterized in that: described alpha-aluminium oxide micro mist granularity is that below 10 μ m, purity is more than 99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179591.3A CN104001883A (en) | 2014-04-30 | 2014-04-30 | Submersed nozzle for washing resistance of continuous-casting high manganese and high oxygen steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179591.3A CN104001883A (en) | 2014-04-30 | 2014-04-30 | Submersed nozzle for washing resistance of continuous-casting high manganese and high oxygen steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104001883A true CN104001883A (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410179591.3A Pending CN104001883A (en) | 2014-04-30 | 2014-04-30 | Submersed nozzle for washing resistance of continuous-casting high manganese and high oxygen steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907172A (en) * | 2018-08-21 | 2018-11-30 | 北京利尔高温材料股份有限公司 | A kind of long nozzle of compound useless refractory brick slag line broken material |
| CN116199509A (en) * | 2023-02-08 | 2023-06-02 | 江苏泰瑞耐火有限公司 | Toughened zirconia ceramic tundish nozzle for continuous casting of slabs, large square billets and rectangular billets and production process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0929402A (en) * | 1995-07-24 | 1997-02-04 | Nippon Steel Corp | Method for reusing immersion nozzle for continuous casting |
| CN1446651A (en) * | 2002-03-22 | 2003-10-08 | 淄博北工新特耐火材料有限公司 | Compound integral column of sagger |
| CN1485294A (en) * | 2002-09-26 | 2004-03-31 | 山东淄川特种耐火材料厂 | Integral stopper rod comprising Al-C-Cr material |
| CN1927507A (en) * | 2006-09-25 | 2007-03-14 | 山东中齐耐火材料有限公司 | Aluminium-carbon water gap for continuous casting |
| CN101205140A (en) * | 2006-12-23 | 2008-06-25 | 周成德 | High-carbon refractory and method for preparing same |
| CN101712558A (en) * | 2009-05-25 | 2010-05-26 | 上海宝明耐火材料有限公司 | Stopper rod head and immersion water gap bowl material for continuous casting |
| CN103264157A (en) * | 2013-06-05 | 2013-08-28 | 王世泰 | Functional fire-proof part for continuous casting and manufacturing method thereof |
-
2014
- 2014-04-30 CN CN201410179591.3A patent/CN104001883A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0929402A (en) * | 1995-07-24 | 1997-02-04 | Nippon Steel Corp | Method for reusing immersion nozzle for continuous casting |
| CN1446651A (en) * | 2002-03-22 | 2003-10-08 | 淄博北工新特耐火材料有限公司 | Compound integral column of sagger |
| CN1485294A (en) * | 2002-09-26 | 2004-03-31 | 山东淄川特种耐火材料厂 | Integral stopper rod comprising Al-C-Cr material |
| CN1927507A (en) * | 2006-09-25 | 2007-03-14 | 山东中齐耐火材料有限公司 | Aluminium-carbon water gap for continuous casting |
| CN101205140A (en) * | 2006-12-23 | 2008-06-25 | 周成德 | High-carbon refractory and method for preparing same |
| CN101712558A (en) * | 2009-05-25 | 2010-05-26 | 上海宝明耐火材料有限公司 | Stopper rod head and immersion water gap bowl material for continuous casting |
| CN103264157A (en) * | 2013-06-05 | 2013-08-28 | 王世泰 | Functional fire-proof part for continuous casting and manufacturing method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907172A (en) * | 2018-08-21 | 2018-11-30 | 北京利尔高温材料股份有限公司 | A kind of long nozzle of compound useless refractory brick slag line broken material |
| CN116199509A (en) * | 2023-02-08 | 2023-06-02 | 江苏泰瑞耐火有限公司 | Toughened zirconia ceramic tundish nozzle for continuous casting of slabs, large square billets and rectangular billets and production process thereof |
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Application publication date: 20140827 |