CN104193367B - A kind of residue pile mould material - Google Patents
A kind of residue pile mould material Download PDFInfo
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- CN104193367B CN104193367B CN201410427379.4A CN201410427379A CN104193367B CN 104193367 B CN104193367 B CN 104193367B CN 201410427379 A CN201410427379 A CN 201410427379A CN 104193367 B CN104193367 B CN 104193367B
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- magnesia
- residue pile
- mould material
- graphite
- norbide
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Abstract
The present invention relates to a kind of residue pile mould material, be made up of the component of following weight percent: 3 ~ 6mm magnesia 36.42 ~ 39.41%, 0 ~ 3mm magnesia 35.37 ~ 40.62%, magnesia powder 7.67 ~ 8.36%, aluminum oxide 1.38 ~ 1.97%, norbide 0.01 ~ 0.03%, graphite 11.73 ~ 12.83%, resin 2.63 ~ 3.41%; Advantage of the present invention: 3 ~ 6mm magnesia, 0 ~ 3mm magnesia, magnesia powder, aluminum oxide, norbide, graphite, mixed with resin are become residue pile mould material, produce the hot shock resistance that the residue pile made is good, there is best hot strength at the working temperature, the Al in the effective absorb inclusion thing of energy
2o
3make its surface form spinel, cost is low, and work-ing life is good, effectively can eliminate the dead band of bottom section, can improve the track of MOLTEN STEEL FLOW, is conducive to bits and absorbs.
Description
Technical field
The present invention relates to a kind of residue pile mould material.
Background technology
In steel smelting procedure, because in tundish, MOLTEN STEEL FLOW is uneven, some places are fast, some places are slow, especially there is sluggish molten steel stagnant wake in tundish bottom region, make inclusion floating difficulty, molten steel is shorter than the mean residence time of theory in the actual average residence time of tundish, in order to fully effectively utilize tundish volume, promote that foreign material float, take to add slag line at tundish, existing slag line is magnesia and the emergy of adopting more and mixes, make the slag blocking wall intensity after making low, best hot strength can not be reached, work-ing life is low, effectively can not eliminate the dead band in tundish bottom region, and have influence on the track of MOLTEN STEEL FLOW, be unfavorable for that bits absorb, result of use is poor.
Summary of the invention
The technical problem to be solved in the present invention is that the intensity that existing tundish slag line exists is low and be unfavorable for the defects such as bits absorption, thus provides a kind of residue pile mould material.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: a kind of residue pile mould material, is made up of the component of following weight percent: 3 ~ 6mm magnesia 36.42 ~ 39.41%, 0 ~ 3mm magnesia 35.37 ~ 40.62%, magnesia powder 7.67 ~ 8.36%, aluminum oxide 1.38 ~ 1.97%, norbide 0.01 ~ 0.03%, graphite 11.73 ~ 12.83%, resin 2.63 ~ 3.41%.
Preferably, be made up of the component of following weight percent: 3 ~ 6mm magnesia 36.42%, 0 ~ 3mm magnesia 39.18%, magnesia powder 8.02%, aluminum oxide 1.38%, norbide 0.02%, graphite 11.95%, resin 3.03%, the good hot shock resistance of the residue pile made is produced by the component of this weight percent, there is best hot strength at the working temperature, the Al in the effective absorb inclusion thing of energy
2o
3make its surface form spinel, cost is low, and work-ing life is good, effectively can eliminate the dead band of bottom section, can improve the track of MOLTEN STEEL FLOW, is conducive to bits and absorbs.
Preferably, be made up of the component of following weight percent: 3 ~ 6mm magnesia 37.21%, 0 ~ 3mm magnesia 38.45%, magnesia powder 7.8%, aluminum oxide 1.5%, norbide 0.01%, graphite 12.4%, resin 2.63%, the good hot shock resistance of the residue pile made is produced by the component of this weight percent, there is best hot strength at the working temperature, the Al in the effective absorb inclusion thing of energy
2o
3make its surface form spinel, cost is low, and work-ing life is good, effectively can eliminate the dead band of bottom section, can improve the track of MOLTEN STEEL FLOW, is conducive to bits and absorbs.
Preferably, be made up of the component of following weight percent: 3 ~ 6mm magnesia 38.19%, 0 ~ 3mm magnesia 35.37%, magnesia powder 8.36%, aluminum oxide 1.81%, norbide 0.03%, graphite 12.83%, resin 3.41%, the good hot shock resistance of the residue pile made is produced by the component of this weight percent, there is best hot strength at the working temperature, the Al in the effective absorb inclusion thing of energy
2o
3make its surface form spinel, cost is low, and work-ing life is good, effectively can eliminate the dead band of bottom section, can improve the track of MOLTEN STEEL FLOW, is conducive to bits and absorbs.
Preferably, in described 3 ~ 6mm magnesia, the content of MgO is 97%, in described 0 ~ 3mm magnesia, the content of MgO is 97%, fixed carbon content in described graphite is 95%, and in described magnesia powder, the content of MgO is 98%, is conducive to mixed residue pile Stability Analysis of Structures, Practical Performance is good, intensity is high, long service life, corrosion resistance and good.
In sum, advantage of the present invention: 3 ~ 6mm magnesia, 0 ~ 3mm magnesia, magnesia powder, aluminum oxide, norbide, graphite, mixed with resin are become residue pile mould material, produce the hot shock resistance that the residue pile made is good, there is best hot strength at the working temperature, the Al in the effective absorb inclusion thing of energy
2o
3make its surface form spinel, cost is low, and work-ing life is good, effectively can eliminate the dead band of bottom section, can improve the track of MOLTEN STEEL FLOW, is conducive to bits and absorbs.
Embodiment
Embodiment one:
A kind of residue pile mould material, is made up of the component of following weight percent: 3 ~ 6mm magnesia 36.42%, 0 ~ 3mm magnesia 39.18%, magnesia powder 8.02%, aluminum oxide 1.38%, norbide 0.02%, graphite 11.95%, resin 3.03%.
Embodiment two:
A kind of residue pile mould material, is made up of the component of following weight percent: 3 ~ 6mm magnesia 37.21%, 0 ~ 3mm magnesia 38.45%, magnesia powder 7.8%, aluminum oxide 1.5%, norbide 0.01%, graphite 12.4%, resin 2.63%.
Embodiment three:
A kind of residue pile mould material, is made up of the component of following weight percent: 3 ~ 6mm magnesia 38.19%, 0 ~ 3mm magnesia 35.37%, magnesia powder 8.36%, aluminum oxide 1.81%, norbide 0.03%, graphite 12.83%, resin 3.41%.
In described 3 ~ 6mm magnesia, the content of MgO is 97%, in described 0 ~ 3mm magnesia, the content of MgO is 97%, fixed carbon content in described graphite is 95%, in described magnesia powder, the content of MgO is 98%, be conducive to mixed residue pile Stability Analysis of Structures, Practical Performance is good, and intensity is high, long service life, corrosion resistance and good.
3 ~ 6mm magnesia, 0 ~ 3mm magnesia, magnesia powder, aluminum oxide, norbide, graphite, mixed with resin are become residue pile mould material, produce the hot shock resistance that the residue pile made is good, there is best hot strength at the working temperature, the Al in the effective absorb inclusion thing of energy
2o
3make its surface form spinel, cost is low, and work-ing life is good, effectively can eliminate the dead band of bottom section, can improve the track of MOLTEN STEEL FLOW, is conducive to bits and absorbs.
Claims (3)
1. a residue pile mould material, is characterized in that: be made up of the component of following weight percent: 3 ~ 6mm magnesia 36.42%, 0 ~ 3mm magnesia 39.18%, magnesia powder 8.02%, aluminum oxide 1.38%, norbide 0.02%, graphite 11.95%, resin 3.03%.
2. a residue pile mould material, is characterized in that: be made up of the component of following weight percent: 3 ~ 6mm magnesia 37.21%, 0 ~ 3mm magnesia 38.45%, magnesia powder 7.8%, aluminum oxide 1.5%, norbide 0.01%, graphite 12.4%, resin 2.63%.
3. a residue pile mould material, is characterized in that: be made up of the component of following weight percent: 3 ~ 6mm magnesia 38.19%, 0 ~ 3mm magnesia 35.37%, magnesia powder 8.36%, aluminum oxide 1.81%, norbide 0.03%, graphite 12.83%, resin 3.41%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410427379.4A CN104193367B (en) | 2014-08-27 | 2014-08-27 | A kind of residue pile mould material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410427379.4A CN104193367B (en) | 2014-08-27 | 2014-08-27 | A kind of residue pile mould material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104193367A CN104193367A (en) | 2014-12-10 |
| CN104193367B true CN104193367B (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410427379.4A Active CN104193367B (en) | 2014-08-27 | 2014-08-27 | A kind of residue pile mould material |
Country Status (1)
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| CN (1) | CN104193367B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110563451B (en) * | 2019-10-17 | 2022-03-15 | 长兴煤山新型炉料有限公司 | Ceramic ladle castable and preparation method thereof |
| CN111439992A (en) * | 2020-04-23 | 2020-07-24 | 北京利尔高温材料股份有限公司 | Erosion-resistant castable for continuous casting tundish and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807380A (en) * | 2012-08-17 | 2012-12-05 | 武汉科技大学 | Magnesia-carbon castable and preparation method thereof |
| CN103553678A (en) * | 2013-10-31 | 2014-02-05 | 宁夏天纵泓光余热发电技术有限公司 | Refractory castable for tundish cover |
-
2014
- 2014-08-27 CN CN201410427379.4A patent/CN104193367B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807380A (en) * | 2012-08-17 | 2012-12-05 | 武汉科技大学 | Magnesia-carbon castable and preparation method thereof |
| CN103553678A (en) * | 2013-10-31 | 2014-02-05 | 宁夏天纵泓光余热发电技术有限公司 | Refractory castable for tundish cover |
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| Publication number | Publication date |
|---|---|
| CN104193367A (en) | 2014-12-10 |
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Address after: 313108 Longshan Industrial Zone, Shuikou Town, Huzhou, Zhejiang, Changxing County Patentee after: Zhejiang special fire fighting Co., Ltd. Address before: 313108 Changxing County Huzhou Longshan Town Industrial Zone, Changxin, China, North and west ridge special refractory Co., Ltd. Patentee before: CHANGXING FUZILING SPECIAL FIRE-RESISTANT CO., LTD. |