CN101712558B - Stopper rod head and immersion water gap bowl material for continuous casting - Google Patents
Stopper rod head and immersion water gap bowl material for continuous casting Download PDFInfo
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- CN101712558B CN101712558B CN2009100518984A CN200910051898A CN101712558B CN 101712558 B CN101712558 B CN 101712558B CN 2009100518984 A CN2009100518984 A CN 2009100518984A CN 200910051898 A CN200910051898 A CN 200910051898A CN 101712558 B CN101712558 B CN 101712558B
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- water gap
- immersion water
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- continuous casting
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Abstract
The invention discloses a stopper rod head and immersion water gap bowl material for continuous casting. The material is prepared from the following components in percent by weight: 70-92 percent of alumina, 2-10 percent of carbon, 1-10 percent of chromic oxide, 2-10 percent of additive and 2-10 percent of liquid resin bonding agent. Due to the fact that the carbon content of the material is low, the material has high strength and good oxidation resistance, corrosion resistance as well as scour resistance when casting steel grades the oxygen content of which is higher, such as high-oxygen steel, free-cutting steel and the like, and due to the fact that a stopper rod head and an immersion water gap bowl adopt the same material, the etching rates of a stopper rod and an immersion water gap are the same, the cooperation is good all along and the service lives of the stopper rod head and the immersion water gap bowl are remarkably prolonged.
Description
Technical field:
The present invention relates to a kind of inorganic non-metallic refractory materials, the continuous casting that particularly relates to use in continuous casting steel machine is produced is with stopper caput and immersion water gap bowl portion material.
Background technology:
In the continuous casting technique process, can relate to stopper and submerged nozzle usually, wherein the stopper caput is through cooperating the effect of playing control steel stream with immersion water gap bowl portion.Stopper and submerged nozzle are generally alumina-carbon material in the prior art, and carbon content is higher, at casting oxygen composition during than higher steel grade; Because the reaction of the carbon in oxygen and the material; The material carbonization causes short texture and not anti-erosion and washing away, and work-ing life is short, and because the stopper caput is different with the material of water gap bowl portion; Both erosion rates are inconsistent in casting process; Therefore it is bad to cause stopper caput and immersion water gap bowl portion to cooperate, and flow control effect is poor, the stopper caput and the mouth of a river takes place easily cooperate not tight and the phenomenon of bleed-out.
Summary of the invention:
Technical problem to be solved by this invention provides a kind of continuous casting with stopper caput and immersion water gap bowl portion material, and wherein each weight percentages of components is: 70%～92% aluminum oxide, 2%～10% carbon, 1%～10% chromic oxide, 2%～10% additive and 2%～10% liquid resin wedding agent.
The further technical characterictic of the present invention is:
Said aluminum oxide is provided by in white fused alumina, plate diamond spar, the alumina powder one or more.
Carbon in the said batching comprises typing carbon and indefinite form carbon, and typing carbon is provided by crystalline flake graphite, and agraphitic carbon is provided by hard pitch.
Additive in the said batching is provided by in metallic silicon power, metallic aluminium powder, carbide, the boride one or more.
Said liquid resin wedding agent is a liquid thermosetting resol.
The invention has the beneficial effects as follows:
Because carbon content is lower in the material according to the invention, be fit to oxygen compositions such as casting high-oxygen steel, free-cutting steel than higher steel grade, and owing to introduce the chromic oxide composition; Its fusing point is high, be difficult for molten steel in composition react, anti-erosion and scour resistance significantly improve; The more important thing is that the present invention adopts same material to stopper caput material and immersion water gap bowl portion material sorting; The two erosion rate is in full accord; The contact site is in a kind of good mated condition all the time, realizes control stream easily, has improved the work-ing life at the stopper and the mouth of a river simultaneously again.
Embodiment:
Embodiment 1
A kind of continuous casting is with stopper caput and immersion water gap bowl portion material, and wherein each weight percentages of components is: 70% aluminum oxide, 10% carbon, 1% chromic oxide, 9% additive and 10% liquid thermosetting resol.
Wherein said aluminum oxide is provided by in white fused alumina, plate diamond spar, the alumina powder one or more.
Carbon in the wherein said batching comprises typing carbon and indefinite form carbon, and typing carbon is provided by crystalline flake graphite, and agraphitic carbon is provided by hard pitch.
Additive in the wherein said batching is provided by in metallic silicon power, metallic aluminium powder, carbide, the boride one or more.As for the production technique of stopper and submerged nozzle, since identical with prior art, repeat no more at this, and the present invention stresses the improvement of stopper caput and immersion water gap bowl portion material.
Embodiment 2), embodiment 3), embodiment 4) and embodiment 5) reference table 1 and embodiment noted earlier be similar, be not described in detail in this.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Aluminum oxide | ?70 | ?80 | ?81 | ?83 | ?92 |
| Carbon | ?10 | ?8 | ?6 | ?3 | ?2 |
| Chromic oxide | ?1 | ?3 | ?1 | ?10 | ?1 |
| Additive | ?9 | ?2 | ?10 | ?2 | ?2 |
| The liquid resin wedding agent | ?10 | ?7 | ?2 | ?2 | ?3 |
| Raw material adds up to | ?100 | ?100 | ?100 | ?100 | ?100 |
Claims (4)
1. a continuous casting is with stopper caput and immersion water gap bowl portion material; It is characterized in that each weight percentages of components is: 70%～92% aluminum oxide, 2%～10% carbon, 1%～10% chromic oxide, 2%～10% additive and 2%～10% liquid resin wedding agent, wherein said additive is provided by in metallic silicon power, metallic aluminium powder, carbide, the boride one or more.
2. continuous casting as claimed in claim 1 is with stopper caput and immersion water gap bowl portion material, it is characterized in that said aluminum oxide is provided by in white fused alumina, plate diamond spar, the alumina powder one or more.
3. continuous casting as claimed in claim 1 is characterized in that with stopper caput and immersion water gap bowl portion material the carbon in the said batching comprises typing carbon and indefinite form carbon, and typing carbon is provided by crystalline flake graphite, and indefinite form carbon is provided by hard pitch.
4. continuous casting as claimed in claim 1 is characterized in that with stopper caput and immersion water gap bowl portion material said liquid resin wedding agent is a liquid thermosetting resol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100518984A CN101712558B (en) | 2009-05-25 | 2009-05-25 | Stopper rod head and immersion water gap bowl material for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100518984A CN101712558B (en) | 2009-05-25 | 2009-05-25 | Stopper rod head and immersion water gap bowl material for continuous casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101712558A CN101712558A (en) | 2010-05-26 |
| CN101712558B true CN101712558B (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100518984A Active CN101712558B (en) | 2009-05-25 | 2009-05-25 | Stopper rod head and immersion water gap bowl material for continuous casting |
Country Status (1)
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| CN (1) | CN101712558B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294470B (en) * | 2011-08-23 | 2013-08-28 | 湖州永联耐火材料有限公司 | Anti-blocking type long water gap bowl part |
| CN102336539A (en) * | 2011-09-02 | 2012-02-01 | 浙江铭德新材科技有限公司 | Waste utilization regeneration baking-free magnesia chrome brick and preparation method thereof |
| CN102557692B (en) * | 2012-02-22 | 2013-05-01 | 北京首钢耐材炉料有限公司 | Carbon-free sliding surface tundish water feed port and preparation method thereof |
| CN104001883A (en) * | 2014-04-30 | 2014-08-27 | 江苏泰瑞耐火有限公司 | Submersed nozzle for washing resistance of continuous-casting high manganese and high oxygen steel |
| CN106735153B (en) * | 2016-11-16 | 2018-12-25 | 成都先进金属材料产业技术研究院有限公司 | Polycyclic stopper |
| 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 |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2009
- 2009-05-25 CN CN2009100518984A patent/CN101712558B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN101712558A (en) | 2010-05-26 |
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