CN1274441C - Non-drying carbon-free long runner - Google Patents
Non-drying carbon-free long runner Download PDFInfo
- Publication number
- CN1274441C CN1274441C CN 03119153 CN03119153A CN1274441C CN 1274441 C CN1274441 C CN 1274441C CN 03119153 CN03119153 CN 03119153 CN 03119153 A CN03119153 A CN 03119153A CN 1274441 C CN1274441 C CN 1274441C
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- China
- Prior art keywords
- weight
- liner
- long nozzle
- free long
- mentioned
- Prior art date
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Abstract
The present invention relates to a baking-free carbon-free long nozzle which comprises a main body, an inner lining 1 and an inner lining 2. The material of the main body of the baking-free carbon-free long nozzle is composed of the following components: phosphorous flake graphite, electric melting white alundum, fused quartz, electric melting zirconium mullite, silicon carbide and metallic silicon powder; the material of the inner lining 1 of the baking-free carbon-free long nozzle comprises electric melting magnesite aluminum spinel, electric melting zirconium mullite, light burning aluminum oxide and metallic aluminium powder; and the material of the inner lining 2 of the baking-free carbon-free long nozzle comprises fused quartz, electric melting white alundum, zirconium dioxide hollow balls and light burning aluminum oxide. The long nozzle has the advantages of good heat shock stability, scour resistance, corrosion resistance, extended service life and lowered production cost.
Description
Technical field
The present invention relates to a kind of novel inorganic non-metallic refractory and product, especially relate in continuous casting steel machine production, use exempt to toast carbon-free long nozzle and manufacture method.
Background technology
The exempting from of uses such as continuous casting ultra-low-carbon steel, high-oxygen steel at present toasted carbon-free long nozzle and is divided into two types of quartziferous and the carbon-free clad aluminum carbonaceous of inwall long nozzles.In steel pouring process, quartziferous long nozzle antiscour, corrosion resistance are relatively poor, the carbon-free clad aluminum carbonaceous of inwall long nozzle corrosion resistance is stronger, but it is relatively poor that inwall does not have the anti-molten steel scouring ability of carbon-coating, after long-time the use, to increase carbon content in the molten steel, so this carbon-free long nozzle of two types is shorter service life.
In order to overcome shortcoming of the prior art, the inventor has invented novel exempt to toast long nozzle and manufacture method of the present invention through further investigation.
Summary of the invention
The purpose of this invention is to provide a kind of without baking can directly use have good thermal shock resistance, erosion resisting, abrasion resistance, a long service life exempt to toast carbon-free long nozzle.
Another object of the present invention provides above-mentioned manufacture method of exempting to toast carbon-free long nozzle.
The present invention exempts to toast carbon-free long nozzle and comprises body liner 1, liner 2, form (percentage meter by weight as exempting to toast carbon-free long nozzle body material by following component, as follows): scale graphite 20-40%, fused white corundum 30-56%, vitreous silica 8-21%, fused zirconia-mullite 8-18%, carborundum 4-8%, metallic silicon power 0.5-4%, its condition be above-mentioned each component percetage by weight be combined into 100%; Form (by weight percentage, as follows) as exempting to toast carbon-free long nozzle liner 1 material by following component: electric melting magnesium aluminum spinel 35-80%, fused zirconia-mullite 10-40%, light-burned α-Al
2O
33-10%, metallic aluminium powder 0.5-6%, its condition is that above-mentioned each component percetage by weight sum is 100%.Form (the percentage meter is as follows by weight) as exempting to toast long nozzle liner 2 materials by following component: vitreous silica 15-50%, fused white corundum 10-30%, zirconia hollow ball 15-45%, light-burned α-Al
2O
33-10%, its condition is that above-mentioned each component percetage by weight sum is 100%.
Exempt to toast carbon-free long nozzle body material and preferably form as above-mentioned: scale graphite 31%, fused white corundum 33%, vitreous silica 18%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2% by following component; Preferably form as liner 1 material of exempting to toast carbon-free long nozzle: magnesium aluminate spinel 74%, fused zirconia-mullite 13%, light-burned α-Al by following component
2O
39%, metallic aluminium powder 4%; Preferably form as exempting to toast carbon-free long nozzle liner 2 materials: vitreous silica 46%, fused white corundum 17%, zirconia hollow ball 29%, light-burned α-Al by following component
2O
38%.
Exempt to toast carbon-free long nozzle body material and also preferably form as above-mentioned: scale graphite 29%, fused white corundum 33%, vitreous silica 20%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2% by following component; Also preferably form as exempting to toast carbon-free long nozzle liner 1 material: magnesium aluminate spinel 76%, fused zirconia-mullite 11%, light-burned α-Al by following component
2O
39%, metallic aluminium powder 4%; Also preferably form as exempting to toast carbon-free long nozzle liner 2 materials: vitreous silica 45%, fused white corundum 17%, zirconia hollow ball 30%, light-burned α-Al by following component
2O
38%.
Exempt to toast carbon-free long nozzle body material and also preferably form as above-mentioned: scale graphite 30%, fused white corundum 33%, vitreous silica 19%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2% by following component; Also preferably form as exempting to toast carbon-free long nozzle liner 1 material: magnesium aluminate spinel 75%, fused zirconia-mullite 12%, light-burned α-Al by following component
2O
39%, metallic aluminium powder 4%; Preferably form as exempting to toast carbon-free long nozzle liner 2 materials: vitreous silica 47%, fused white corundum 17%, zirconia hollow ball 28%, light-burned α-Al by following component
2O
38%.
The each component of above-mentioned body material and liner 1, liner 2 materials all can have been bought on market.
In order to make the carbon-free long nozzle of exempting to toast of the present invention; raw material and liner 1 in above-mentioned body material use; add 9 weight % (the raw material weight sum of using in the body material is 100%) in the raw material that liner 2 materials are used respectively; 6.5 the thermosetting phenolic resin of weight % (the raw material weight sum of using in liner 1 material is 100%) and 7 weight % (the raw material weight sum of using in liner 2 materials is 100%); above-mentioned three kinds of materials are used the comminutor mixing granulation respectively; batch mixing is after the drying bed that flows is dried to fugitive constituent and reaches the moulding requirement; with the cold press that waits at the 125-140Mpa compacted under; require liner 1 thickness 1-6mm; liner 2 thickness 3-11mm; blank after the moulding burns till under reducing atmosphere in the shuttle-type kiln; burn till the back product after machined into; surface heat sprays anti-oxidation ceramic coating, promptly makes after the drying and exempts to toast carbon-free long nozzle.To use therein thermosetting phenolic resin type without limits, can on market, buy.
Product of exempting to toast carbon-free long nozzle and prior art of the present invention relatively has outstanding characteristics and significant advantage: under the situation that guarantees thermal shock resistance and erosion-resisting characteristics, carbon-free inwall scour resistance is good, long service life, improved continuous casting greatly and made the operating rate of mild steel high-oxygen steel, reduced production costs.
Description of drawings
Fig. 1 is the cutaway view that the present invention exempts to toast carbon-free long nozzle, and shown in Figure 1 exempting from toasted carbon-free long nozzle and be made up of liner 1, liner 2 and body 3.
The specific embodiment
Embodiment 1: the each component of exempting to toast carbon-free long nozzle body material is:
Scale graphite 31Kg
Fused white corundum 33Kg
Vitreous silica 18Kg
Fused zirconia-mullite 10Kg
Carborundum 6Kg
Metallic silicon power 2Kg
The each component of liner 1 material is:
Magnesium aluminate spinel 74Kg
Fused zirconia-mullite 13Kg
Light-burned α-Al
2O
39Kg
Metallic aluminium powder 4Kg
The each component of liner 2 materials is:
Vitreous silica 46Kg
Fused white corundum 17Kg
Zirconia hollow ball 29Kg
Light-burned α-Al
2O
38Kg
Exempt to toast carbon-free long nozzle in order to make, the each component of above this material material is evenly mixed, add the 9Kg phenolic resin binder, the each component of liner 1 material is evenly mixed, add 6.5Kg phenolic resins and make bond, the each component with liner 2 materials evenly mixes in addition, add 7Kg phenolic resins and make bond, manufacture according to previously described method and to exempt to toast carbon-free long nozzle, liner 1 thickness 6mm, liner 2 thickness 7mm.
Embodiment 2: the each component of exempting to toast carbon-free long nozzle body material is:
Scale graphite 29Kg
Fused white corundum 33Kg
Vitreous silica 20Kg
Fused zirconia-mullite 10Kg
Carborundum 6Kg
Metallic silicon power 2Kg
The each component of liner 1 material is:
Magnesium aluminate spinel 76Kg
Fused zirconia-mullite 11Kg
Light-burned α-Al
2O
39Kg
Metallic aluminium powder 4Kg
The each component of liner 2 materials is:
Vitreous silica 45Kg
Fused white corundum 17Kg
Zirconia hollow ball 30Kg
Light-burned α-Al
2O
38Kg
Its preparation method is with embodiment 1.
Embodiment 3: the each component of exempting to toast carbon-free long nozzle body material is:
Scale graphite 30Kg
Fused white corundum 33Kg
Vitreous silica 19Kg
Fused zirconia-mullite 10Kg
Carborundum 6Kg
Metallic silicon power 2Kg
The each component of liner 1 material is:
Magnesium aluminate spinel 75Kg
Fused zirconia-mullite 12Kg
Light-burned α-Al
2O
39Kg
Metallic aluminium powder 4Kg
The each component of liner 2 materials is:
Vitreous silica 47Kg
Fused white corundum 17Kg
Zirconia hollow ball 28Kg
Light-burned α-Al
2O
38Kg
Its preparation method is with embodiment 1.
The performance of the said goods is as shown in table 1
Table 1 the present invention exempts to toast the performance of carbon-free long nozzle
| Embodiment 1 product | Embodiment 2 products | Embodiment 3 products | |
| Compressive resistance (Mpa) | 31.4 | 30.1 | 29.9 |
| Rupture strength (Mpa) | 10.2 | 10.4 | 9.8 |
| Apparent porosity (%) | 13.8 | 13.2 | 13.7 |
| Slag line erosion rate mm/min | 0.022 | 0.021 | 0.021 |
| Internal diameter reaming speed mm/min | 0.007 | 0.008 | 0.017 |
Very good from the above data performance of exempting to toast carbon-free long nozzle of the present invention as can be seen.
In sum, of the present invention novelly exempt to toast carbon-free long nozzle and have good thermal shock resistance, antiscour, anti-erosion, improved service life, reduced the continuous casting production cost.
Claims (5)
1. exempt to toast carbon-free long nozzle for one kind, it is characterized in that comprising the liner (1) and the inboard liner (2) of liner (1) of body, body inboard; As the material of exempting to toast carbon-free long nozzle body by weight the percentage meter form by following component: scale graphite 29-31%, fused white corundum 33%, vitreous silica 18-20%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2%, its condition are that above-mentioned each component percetage by weight sum is 100%; As exempt to toast carbon-free long nozzle liner (1) material by weight the percentage meter form by following component: electric melting magnesium aluminum spinel 74-76%, fused zirconia-mullite 11-13%, light-burned α-Al
2O
39%, metallic aluminium powder 4%, its condition is that above-mentioned each component percetage by weight sum is 100%; As exempt to toast carbon-free long nozzle liner (2) material by weight the percentage meter form by following component: vitreous silica 45-47%, fused white corundum 17%, zirconia hollow ball 28-30%, light-burned α-Al
2O
38%, its condition is that above-mentioned each component percetage by weight sum is 100%; Contain its raw material gross weight 9%, 6.5%, 7% heat cured phenolic resins respectively in essence material, liner (1) material, liner (2) material; Body material outer surface heat sprays anti-oxidation pottery.
By claim 1 exempt from toast carbon-free long nozzle, it is characterized in that above-mentioned exempt to toast carbon-free long nozzle body material by weight the percentage meter form by following component: scale graphite 31%, fused white corundum 33%, vitreous silica 18%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2%; Above-mentioned liner (1) material percentage meter by weight is made up of following component: magnesium aluminate spinel 74%, fused zirconia-mullite 13%, light-burned α-Al
2O
39%, metallic aluminium powder 4%; Above-mentioned liner (2) material percentage meter by weight is made up of following component: vitreous silica 46%, fused white corundum 17%, zirconia hollow ball 29%, light-burned α-Al
2O
38%.
By claim 1 exempt from toast carbon-free long nozzle, it is characterized in that above-mentioned exempt to toast carbon-free long nozzle body material by weight the percentage meter form by following component: crystalline flake graphite 29%, fused white corundum 33%, vitreous silica 20%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2%; Above-mentioned liner (1) material percentage meter by weight is made up of following component: magnesium aluminate spinel 76%, fused zirconia-mullite 11%, light-burned α-Al
2O
39%, metallic aluminium powder 4%; Above-mentioned liner (2) material percentage meter by weight is made up of following component; Vitreous silica 45%, fused white corundum 17%, zirconia hollow ball 30%, light-burned α-Al
2O
38%.
4. exempt to toast carbon-free long nozzle by claim 1 is described, it is characterized in that above-mentioned exempt to toast carbon-free long nozzle body material by weight the percentage meter form by following component: scale graphite 30%, fused white corundum 33%, vitreous silica 19%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2%; Above-mentioned liner (1) material percentage meter by weight is made up of following component: magnesium aluminate spinel 75%, fused zirconia-mullite 12%, light-burned α-Al
2O
39%, metallic aluminium powder 4%; Above-mentioned liner (2) material percentage meter by weight is made up of following component: vitreous silica 47%, fused white corundum 17%, zirconia hollow ball 28%, light-burned α-Al
2O
38%.
5. manufacture method of exempting to toast carbon-free long nozzle, it is characterized in that as exempt to toast carbon-free long nozzle body material by weight the percentage meter form by following component: scale graphite 29-31%, fused white corundum 33%, vitreous silica 18-20%, fused zirconia-mullite 10%, carborundum 6%, metallic silicon power 2%, its condition is that above-mentioned each component percetage by weight sum is 100%; As exempt to toast carbon-free long nozzle liner (1) material by weight the percentage meter form by following component: electric melting magnesium aluminum spinel 74-76%, fused zirconia-mullite 11-13%, light-burned α-Al
2O
39%, metallic aluminium powder 4%, its condition is that above-mentioned each component percetage by weight sum is 100%; As exempt to toast long nozzle liner (2) material by weight the percentage meter form by following component: vitreous silica 45-47%, fused white corundum 17%, zirconia hollow ball 28-30%, light-burned α-Al
2O
38%, its condition is that above-mentioned each component percetage by weight sum is 100%; At the above-mentioned raw material of exempting to toast carbon-free long nozzle body material use; add 9 weight % respectively in the raw material that liner (1) material and liner (2) material are used; 6.5 the heat cured phenolic resins of weight % and 7% weight; use comminutor with the raw material mixing granulation respectively above-mentioned three kinds of materials; batch mixing is after the drying bed that flows is dried to fugitive constituent and reaches the moulding requirement; with the cold press that waits at the 125-140Mpa compacted under; require liner (1) thickness 1-6mm; liner (2) thickness 3-11mm; blank after the moulding burns till under reducing atmosphere in the shuttle-type kiln; burn till the back product after machined into; surface heat sprays anti-oxidation ceramic coating, promptly makes after the drying and exempts to toast carbon-free long nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119153 CN1274441C (en) | 2003-03-14 | 2003-03-14 | Non-drying carbon-free long runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03119153 CN1274441C (en) | 2003-03-14 | 2003-03-14 | Non-drying carbon-free long runner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1530195A CN1530195A (en) | 2004-09-22 |
| CN1274441C true CN1274441C (en) | 2006-09-13 |
Family
ID=34284999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03119153 Expired - Fee Related CN1274441C (en) | 2003-03-14 | 2003-03-14 | Non-drying carbon-free long runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1274441C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503462B (en) * | 2011-10-21 | 2013-05-01 | 山东东耐高温材料股份有限公司 | Metal continuously cast composite slag line long nozzle and preparing method thereof |
| CN102528010B (en) * | 2012-02-22 | 2013-09-11 | 河南省西保冶材集团有限公司 | Long-life alumina-carbon long nozzle and production process for same |
| CN105364061B (en) * | 2012-11-22 | 2017-12-01 | 重庆欧荣莱汽车配件有限公司 | A kind of carbon-free submersed nozzle |
| CN105149513A (en) * | 2015-10-13 | 2015-12-16 | 河北钢铁股份有限公司邯郸分公司 | Water gap capable of automatically sealing holes in casting process and manufacturing method of water gap |
| CN108585746A (en) * | 2018-04-12 | 2018-09-28 | 苏州宝明高温陶瓷有限公司 | A kind of continuous casting steel long nozzle endoporus thermal insulation coatings and preparation method thereof and construction method |
| CN111390149B (en) * | 2020-04-24 | 2021-06-22 | 中信戴卡股份有限公司 | Casting ladle for casting aluminum alloy |
| CN117226083B (en) * | 2023-11-14 | 2024-01-26 | 山西昊业新材料开发有限公司 | Long nozzle for continuous casting and preparation method thereof |
-
2003
- 2003-03-14 CN CN 03119153 patent/CN1274441C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1530195A (en) | 2004-09-22 |
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Granted publication date: 20060913 Termination date: 20120314 |