CN1429673A - Non-preheating aluminium carbon zirconium mass immersion type sprue - Google Patents
Non-preheating aluminium carbon zirconium mass immersion type sprue Download PDFInfo
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- CN1429673A CN1429673A CN 02100062 CN02100062A CN1429673A CN 1429673 A CN1429673 A CN 1429673A CN 02100062 CN02100062 CN 02100062 CN 02100062 A CN02100062 A CN 02100062A CN 1429673 A CN1429673 A CN 1429673A
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- aluminium carbon
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Abstract
A novel non-preheated immersed Al-C-Zr sprue and its manufacture technology are disclosed. Its advantages are high heat shock stability and impact resistance, no need of preheating, long service life and low cost.
Description
Technical field
The present invention relates to a kind of novel inorganic non-metallic refractory product, especially relate to a kind of non-preheating aluminium carbon zirconium mass immersion type sprue that in continuous casting steel machine is produced, uses.
Background technology
Domestic and international at present conventional aluminium carbonaceous, the aluminium carbon zirconium mass immersion type sprue of producing, must evenly be heated to 1100-1200 ℃ of ability before use normally uses, if preheating is improper, heat up too fast or do not reach preheat temperature, submersed nozzle will occur in the steel process bursting opening to water or draw, and influence is normal produces continuously; If temperature retention time is long in addition, will under the condition of high temperature, make the oxidation of aluminium carbon zirconium material, shorten the service life of submersed nozzle, directly influence the efficient that continuous casting steel machine is produced.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can directly use, have good thermal shock resistance, thermal-shock resistance without preheating, and safe and reliable, the submersed nozzle of long service life.
Another purpose of the present invention provides a kind of manufacture method of above-mentioned submersed nozzle.
In order to overcome shortcoming of the prior art, the inventor has found novel non-preheating aluminium carbon zirconium mass immersion type sprue of the present invention through further investigation.
The present invention adopts following method to realize.
The feature of aluminium carbon zirconium mass immersion type sprue of the present invention is to form (percentage meter by weight as the aluminium carbon zirconium material of submersed nozzle by following component, as follows): crystalline flake graphite 10-35%, carborundum 1-10%, Sai Long (sialon) 5-15%, fused zirconia-mullite 5-15%, white fused alumina 35-50%, all the other are the refractory raw material of low thermal conductivity, its condition be above-mentioned each component percetage by weight be combined into 100%, and the Sai Long in the above-mentioned component is at least 5%.
The refractory material of above-mentioned low thermal conductivity is alumina hollow ball or zirconia hollow ball or floats pearl.
Above-mentioned raw material all can have been bought on market.
Above-mentioned aluminium carbon zirconium material preferably is made up of following component: crystalline flake graphite 25%, and carborundum 5%, match swells 5%, fused zirconia-mullite 10%, white fused alumina 48%, alumina hollow ball 7%.
Above-mentioned aluminium carbon zirconium material also preferably is made up of following component: crystalline flake graphite 23%, and carborundum 5%, match swells 7%, fused zirconia-mullite 10%, white fused alumina 47%, zirconia hollow ball 8%.
Above-mentioned aluminium carbon zirconium material also preferably is made up of following component: crystalline flake graphite 22%, and carborundum 5%, match swells 10%, fused zirconia-mullite 10%, white fused alumina 48% floats pearl 5%.
In order to make non-preheating submersed nozzle of the present invention; above-mentioned Inorganic Non-metallic Materials is evenly mixed; toward 10% the phenolic resin binder of closing that wherein adds above-mentioned component weight; use high speed granulator with the raw material granulation; the granulation material is through the oven dry bed oven dry of flowing; make fugitive constituent satisfy the moulding requirement; use cold isostatic press at the 120-150MPa compacted under; shaped article is fired under 1200-1300 ℃ and reducing atmosphere in the shuttle-type kiln; burn till product through vertical forming lathe processing; product surface applies inoxidzable coating again, promptly makes non-preheating submersed nozzle after the oven dry.
Compare with the product of prior art, product of the present invention has outstanding characteristics and significant advantage: because the present invention has adopted the thermal shock resistance height, the coefficient of expansion is little, the Sai Long that chemical stability is high, zirconium mullite, the refractory raw material of white fused alumina and low thermal conductivity, make submersed nozzle have good thermal shock resistance, impact resistance does not need preheating to use safely, is improving 20-33% aspect the corrosion resistance of slag line and service life, improved the operating efficiency of continuous casting steel machine greatly, owing to saved the baking energy, avoided the quality accident that may cause because of baking, therefore reduced cost, and improved operating condition, reduced labor strength.
Embodiment 1
The each component of aluminium carbon zirconium material is:
Crystalline flake graphite 25Kg;
Carborundum 5Kg;
The grand 5Kg of match;
Fused zirconia-mullite 10Kg;
White fused alumina 48Kg;
Alumina hollow ball 7Kg.
Above component is evenly mixed, add the 10Kg phenolic resin binder, manufacture submersed nozzle according to previously described method.
Embodiment 2
The each component of aluminium carbon zirconium material is:
Crystalline flake graphite 23Kg;
Carborundum 5Kg;
The grand 7Kg of match;
Fused zirconia-mullite 10Kg;
White fused alumina 47Kg;
Zirconia hollow ball 8Kg.
Above component is evenly mixed, add the 10Kg phenolic resin binder, manufacture submersed nozzle according to previously described method.
Embodiment 3
The each component of aluminium carbon zirconium material is:
Crystalline flake graphite 22Kg;
Carborundum 5Kg;
The grand 10Kg of match;
Fused zirconia-mullite 10Kg;
White fused alumina 48Kg;
Float pearl 5Kg.
Above component is evenly mixed, add the 10Kg phenolic resin binder, manufacture submersed nozzle according to previously described method.
The performance of the said goods is as shown in table 1.
The performance of table 1 submersed nozzle of the present invention
| Embodiment 1 product | Embodiment 2 products | Embodiment 3 products | |
| Apparent porosity % | ????14.5 | ????14.8 | ????15.1 |
| Compressive resistance MPa | ????33.5 | ????32.8 | ????31.5 |
| Rupture strength MPa | ????8.5 | ????8.2 | ????8.0 |
| Service life min | ????280 | ????300 | ????290 |
| Corrode slag line thickness mm | ????10 | ????11 | ????11 |
| Open to have or not when watering and burst phenomenon | Do not have | Do not have | Do not have |
Very good from the performance of above data non-preheating submersed nozzle of the present invention as can be seen.
In sum, novel non-preheating aluminium carbon zirconium mass immersion type sprue of the present invention has good thermal shock resistance, impact resistance, does not need preheating to use safely, has improved service life, has improved the operating efficiency of continuous casting steel machine greatly, and has reduced cost.
Claims (6)
1. non-preheating aluminium carbon zirconium mass immersion type sprue, it is characterized in that forming (percentage meter by weight) by following component: crystalline flake graphite 10-35% as the aluminium carbon zirconium material of submersed nozzle, carborundum 1-10%, the grand 5-15% of match, fused zirconia-mullite 5-15%, white fused alumina 35-50%, all the other are the refractory raw material of low thermal conductivity, its condition be above-mentioned each component percetage by weight be combined into 100%.
2. according to the non-preheating aluminium carbon zirconium mass immersion type sprue of claim 1, the refractory material that it is characterized in that above-mentioned low thermal conductivity is alumina hollow ball or zirconia hollow ball or floats pearl.
3. according to the non-preheating aluminium carbon zirconium mass immersion type sprue of claim 2, it is characterized in that above-mentioned aluminium carbon zirconium material forms (percentage meter by weight) by following component: crystalline flake graphite 25%, carborundum 5%, match grand 5%, fused zirconia-mullite 10%, white fused alumina 48%, alumina hollow ball 7%.
4. according to the non-preheating aluminium carbon zirconium mass immersion type sprue of claim 2, it is characterized in that above-mentioned aluminium carbon zirconium material forms (percentage meter by weight) by following component: crystalline flake graphite 23%, carborundum 5%, match grand 7%, fused zirconia-mullite 10%, white fused alumina 47%, zirconia hollow ball 8%.
5. according to the non-preheating aluminium carbon zirconium mass immersion type sprue of claim 2, it is characterized in that above-mentioned aluminium carbon zirconium material forms (percentage meter by weight) by following component: crystalline flake graphite 22%, carborundum 5%, match grand 10%, fused zirconia-mullite 10%, white fused alumina 48% floats pearl 5%.
6. the manufacture method of a non-preheating aluminium carbon zirconium mass immersion type sprue, it is characterized in that forming (percentage meter by weight) by following component: crystalline flake graphite 10-35% as the aluminium carbon zirconium material of submersed nozzle, carborundum 1-10%, the grand 5-15% of match, fused zirconia-mullite 5-15%, white fused alumina 35-50%, all the other are the refractory raw material of low thermal conductivity, its condition be above-mentioned each component percetage by weight be combined into 100%; Manufacture method is that above-mentioned Inorganic Non-metallic Materials is evenly mixed; toward 10% the phenolic resin binder of closing that wherein adds above-mentioned component weight; use high speed granulator with the raw material granulation; the granulation material is through the oven dry bed oven dry of flowing; make fugitive constituent satisfy the moulding requirement; use cold isostatic press at the 120-150MPa compacted under; shaped article is fired under 1200-1300 ℃ and reducing atmosphere in the shuttle-type kiln; burn till product through vertical forming lathe processing; product surface applies inoxidzable coating again, promptly makes non-preheating submersed nozzle after the oven dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02100062XA CN1176766C (en) | 2002-01-14 | 2002-01-14 | Non-preheating aluminium carbon zirconium mass immersion type sprue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02100062XA CN1176766C (en) | 2002-01-14 | 2002-01-14 | Non-preheating aluminium carbon zirconium mass immersion type sprue |
Publications (2)
| Publication Number | Publication Date |
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| CN1429673A true CN1429673A (en) | 2003-07-16 |
| CN1176766C CN1176766C (en) | 2004-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB02100062XA Expired - Lifetime CN1176766C (en) | 2002-01-14 | 2002-01-14 | Non-preheating aluminium carbon zirconium mass immersion type sprue |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352579C (en) * | 2005-03-31 | 2007-12-05 | 宝山钢铁股份有限公司 | Anti-clog immersion type down spout material |
| CN102335730A (en) * | 2010-07-26 | 2012-02-01 | 宝山钢铁股份有限公司 | Silicone-free submersed nozzle and manufacturing method thereof |
| CN102336573A (en) * | 2010-07-26 | 2012-02-01 | 宝山钢铁股份有限公司 | Aluminum titanate-sialon-silicon carbide composite molten steel feeding port, and manufacturing method thereof |
| CN105170968A (en) * | 2015-08-26 | 2015-12-23 | 中钢集团洛阳耐火材料研究院有限公司 | Submersed nozzle |
| CN107074671A (en) * | 2015-03-02 | 2017-08-18 | 株式会社Ihi | Environment resistant envelope |
| CN115093205A (en) * | 2022-05-07 | 2022-09-23 | 安徽瑞泰新材料科技有限公司 | Refractory material for cement rotary kiln mouth |
-
2002
- 2002-01-14 CN CNB02100062XA patent/CN1176766C/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352579C (en) * | 2005-03-31 | 2007-12-05 | 宝山钢铁股份有限公司 | Anti-clog immersion type down spout material |
| CN102335730A (en) * | 2010-07-26 | 2012-02-01 | 宝山钢铁股份有限公司 | Silicone-free submersed nozzle and manufacturing method thereof |
| CN102336573A (en) * | 2010-07-26 | 2012-02-01 | 宝山钢铁股份有限公司 | Aluminum titanate-sialon-silicon carbide composite molten steel feeding port, and manufacturing method thereof |
| CN102336573B (en) * | 2010-07-26 | 2013-05-29 | 宝山钢铁股份有限公司 | Aluminum titanate-sialon-silicon carbide composite molten steel feeding port, and manufacturing method thereof |
| CN102335730B (en) * | 2010-07-26 | 2013-07-17 | 宝山钢铁股份有限公司 | Silicone-free submersed nozzle and manufacturing method thereof |
| CN107074671A (en) * | 2015-03-02 | 2017-08-18 | 株式会社Ihi | Environment resistant envelope |
| CN107074671B (en) * | 2015-03-02 | 2020-12-11 | 株式会社Ihi | Environmental resistant coating |
| CN105170968A (en) * | 2015-08-26 | 2015-12-23 | 中钢集团洛阳耐火材料研究院有限公司 | Submersed nozzle |
| CN115093205A (en) * | 2022-05-07 | 2022-09-23 | 安徽瑞泰新材料科技有限公司 | Refractory material for cement rotary kiln mouth |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1176766C (en) | 2004-11-24 |
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