CN101712075B - Stopper rod - Google Patents
Stopper rod Download PDFInfo
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- CN101712075B CN101712075B CN2009100518999A CN200910051899A CN101712075B CN 101712075 B CN101712075 B CN 101712075B CN 2009100518999 A CN2009100518999 A CN 2009100518999A CN 200910051899 A CN200910051899 A CN 200910051899A CN 101712075 B CN101712075 B CN 101712075B
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- stopper
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- caput
- rod
- stopper rod
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Abstract
The invention discloses a stopper rod which comprises a rod head and a rod body, wherein the material of the rod head and the material of a bowl part of a water port matched with the rod head are the same. Starting with an application angle view that the stopper rod and the water port are matched, the optimal design of the stopper rod and the water port is integrally considered, thus the corrosion rates of the stopper rod and the water port are completely consistent in a continuous casting process, wherein a contact part is in a good matching state all the same, thereby flows are easy to control. Meanwhile, the service life of the stopper rod is prolonged.
Description
Technical field:
The present invention relates to a kind of inorganic non-metallic refractory material, particularly relate to the stopper that in continuous casting steel machine is produced, uses.
Background technology:
In the continuous casting technique process, can relate to stopper usually, stopper is made up of excellent body and caput.The stopper caput by and the bowl portion of the mouth of a river (filling pipe end or submersed nozzle) cooperate the effect of playing control steel stream.In the prior art because the stopper caput is different with the material of water gap bowl portion, and both erosion rates are inconsistent in casting process, the stopper caput and the mouth of a river takes place easily cooperate not tight and the phenomenon of bleed-out, and is restricted the service life of stopper.
Summary of the invention:
Technical problem to be solved by this invention provides a kind of stopper, comprises caput and excellent body, and wherein the caput material is identical with the bowl portion material at the mouth of a river that cooperates with caput.
The further technical characterictic of the present invention is:
Each weight percentages of components is in the described caput material: 70%～92% aluminium oxide, 2%～10% carbon, 1%～10% chromium oxide, 2%～10% additive and 2%～10% liquid resin bond.
Wherein said aluminium 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.
Wherein said liquid resin bond is a liquid thermosetting phenolic resins.
The invention has the beneficial effects as follows:
Because its caput material of the stopper of the present invention and bowl portion material at the mouth of a river (filling pipe end or submersed nozzle) of cooperation is just the same with it, like this, both erosion rates are in full accord in casting process, the contact site is in a kind of good mated condition all the time, realize control stream easily, the service life of having improved stopper simultaneously.
Description of drawings:
Fig. 1 is a structure cutaway view of the present invention.
The specific embodiment:
The invention will be further described below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of stopper of the present invention comprises caput 1 and excellent body 2, and wherein the material of caput 1 is identical with the bowl portion material at the mouth of a river that cooperates with caput 1.
The present invention has also disclosed a kind of embodiment of stopper, comprise caput 1 and excellent body 2, wherein each weight percentages of components is in the material of embodiment 1 described caput 1: 70% aluminium oxide, 10% carbon, 1% chromium oxide, 9% additive and 10% liquid thermosetting phenolic resins.
Wherein said aluminium 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.The production technology of stopper is identical with prior art, does not repeat them here.
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.
Stopper shown in these several embodiment is because caput material phosphorus content is low, and owing to introduce the chromium oxide composition, its fusing point height, be difficult for molten steel in composition react, anti-erosion and scour resistance significantly improve, the bowl portion material at the corresponding mouth of a river is identical with this caput material again, 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 service life at the stopper and the mouth of a river simultaneously again.
Because the angle that the present invention is used from stopper and the mouth of a river; the two optimal design of overall thinking; therefore be not limited to above embodiment; the material of filling pipe end or immersion water gap bowl portion can be applied to the caput material of stopper of the present invention in any prior art; as the aluminium carbonaceous; the zirconium carbonaceous; the magnesium carbonaceous; aluminium zirconium carbonaceous; magnesium zirconium carbonaceous; aluminate matter; magnesia spinel matter all can; as long as angle from being used; the caput material is identical with the bowl portion material at the mouth of a river that cooperates with caput; all in protection scope of the present invention, protection scope of the present invention is as the criterion with claims.
Table 1
| |
|
Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Aluminium oxide | 70 | ?80 | ?81 | 83 | ?92 |
| Carbon | 10 | ?8 | ?6 | 3 | ?2 |
| |
1 | ?3 | ?1 | 10 | ?1 |
| Additive | 9 | ?2 | ?10 | 2 | ?2 |
| The liquid resin bond | 10 | ?7 | ?2 | 2 | ?3 |
| Raw material adds up to | 100 | ?100 | ?100 | 100 | ?100 |
Claims (3)
1. stopper, comprise caput and excellent body, it is characterized in that, described caput material is identical with the bowl portion material at the mouth of a river that cooperates with caput, and each weight percentages of components is in the described caput material: 70%～92% aluminium oxide, 2%～10% carbon, 1%～10% chromium oxide, 2%～10% additive and 2%～10% liquid resin bond, and wherein said additive is provided by in metallic silicon power, metallic aluminium powder, carbide, the boride one or more; Described liquid resin bond is a liquid thermosetting phenolic resins.
2. stopper as claimed in claim 1 is characterized in that described aluminium oxide is provided by in white fused alumina, plate diamond spar, the alumina powder one or more.
3. stopper as claimed in claim 1 is characterized in that described carbon comprises typing carbon and indefinite form carbon, and typing carbon is provided by crystalline flake graphite, and agraphitic carbon is provided by hard pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100518999A CN101712075B (en) | 2009-05-25 | 2009-05-25 | Stopper rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100518999A CN101712075B (en) | 2009-05-25 | 2009-05-25 | Stopper rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101712075A CN101712075A (en) | 2010-05-26 |
| CN101712075B true CN101712075B (en) | 2011-08-31 |
Family
ID=42416280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100518999A Active CN101712075B (en) | 2009-05-25 | 2009-05-25 | Stopper rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101712075B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102189248B (en) * | 2011-05-24 | 2012-09-05 | 浙江省长兴铁狮耐火材料有限公司 | Ceramic combined type integral stopper rod and production process thereof |
| CN107365159B (en) * | 2017-06-23 | 2020-09-08 | 鞍山市和丰耐火材料有限公司 | Production method of long-pouring-time integral stopper rod for smelting ultra-low carbon steel tundish |
| CN115925397B (en) * | 2022-12-30 | 2024-01-23 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Stopper rod body, stopper rod and preparation method of stopper rod |
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2009
- 2009-05-25 CN CN2009100518999A patent/CN101712075B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101712075A (en) | 2010-05-26 |
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Owner name: SUZHOU BAOMING HIGH TEMPERATURE CERAMIC CO., LTD. Free format text: FORMER OWNER: SHANGHAI BAOMING REFRACTORY MATERIAL CO., LTD. Effective date: 20131113 |
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Free format text: CORRECT: ADDRESS; FROM: 201901 BAOSHAN, SHANGHAI TO: 215200 SUZHOU, JIANGSU PROVINCE |
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Effective date of registration: 20131113 Address after: 215200 No. 6 Jin Road, Fen Lake Economic Development Zone, Jiangsu, Wujiang Patentee after: Suzhou Baiming High Temperature Ceramics Co.,Ltd. Address before: 201901 No. 2319, Fujin Road, Shanghai, Baoshan District Patentee before: Shanghai Baoming Refractory Materials Co.,Ltd. |