CN101921120B - Refractory material of intermediate container for steel making - Google Patents
Refractory material of intermediate container for steel making Download PDFInfo
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- CN101921120B CN101921120B CN201010219686A CN201010219686A CN101921120B CN 101921120 B CN101921120 B CN 101921120B CN 201010219686 A CN201010219686 A CN 201010219686A CN 201010219686 A CN201010219686 A CN 201010219686A CN 101921120 B CN101921120 B CN 101921120B
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Abstract
The invention designs a refractory material of an intermediate container for steel making, which is characterized by comprising the following raw materials: 10 parts by weight of alumina of 10-8 mm, 13 parts by weight of alumina of 8-5 mm, 15 parts by weight of alumina of 5-3 mm, 18 parts by weight of alumina of 3-1 mm, 14 parts by weight of alumina of 1-0 mm, 15 parts by weight of 200-mesh alumina fine powder, 8 parts by weight of 180-mesh fused magnesia, 3 parts of aluminum oxide micro powder, 3 parts by weight of silicon micro powder, 1 part by weight of stainless steel fiber, 0.008 part by weight of sodium tripolyphosphate and 0.006 part by weight of sodium hexametaphosphate. The refractory material of intermediate container for steel making, has the advantages of enlargement of rupture and compression strength, good high-temperature usability and reasonable thermal-state expansibility. proved by experiments, the refractory material has the rupture strength of 5.7-5.9 MPa, the compression strength of 45.2-45.3 MPa, and the volume density of 2.89-2.90 g/cm<3> under the temperature of 110 DEG C for 24 h and has the rupture strength of 8.8-8.9 MPa, the compression strength of 69.3-69.5 MPa, and the linear change of +0.6% under the temperature of 1500 DEG C for 3 h, therefore, the refractor material can effectively reduce the breaking rate of the intermediate container, thereby prolonging the service life of the intermediate container.
Description
Technical field
The present invention relates to a kind of refractory materials, especially a kind of iron and steel is with the refractory materials of intermediate receptacle.
Background technology
Along with the fast development of new smelting technology and continuous casting novel process, also more and more harsher to the requirement of refractory materials, iron and steel is more and more come into one's own with the refractory materials of intermediate receptacle, also be faced with unprecedented challenge simultaneously.
Intermediate receptacle in the smelting iron and steel comprises current stabilizer, impacts cup etc.; These intermediate receptacles not only working temperature are higher; And bearing molten steel and slag stronger wash away erosion; Also exist since the volume effect that high-temperature physics, chemical reaction produce cause peel off, ftracture and ooze steel and damage, therefore, iron and steel needs the performance requriements of following two aspects with the refractory materials of intermediate receptacle:
1, good anti-folding and compressive strength;
2, good high-temperature use properties.
The refractory materials of existing intermediate receptacle adopts aluminum fire resistant materials usually; Raw material, proportioning have nothing in common with each other; But can not effectively satisfy the performance requriements of above-mentioned two aspects of intermediate receptacle; Cause intermediate receptacle to be easy to generate breakage and do not have a due effect, shorten work-ing life simultaneously, this has brought inconvenience to smelting iron and steel.
Summary of the invention
The objective of the invention is a kind of anti-folding that provides for the deficiency that solves above-mentioned technology and the iron and steel that compressive strength increases, the high temperature use properties is good refractory materials with intermediate receptacle.
In order to achieve the above object, the iron and steel that the present invention designed is with the refractory materials of intermediate receptacle, it is characterized in that it is made up of the following raw materials in parts by weight proportioning:
10 parts in the alumina of 20-8mm; 13 parts in the alumina of 8-5mm; 15 parts in the alumina of 5-3mm;
18 parts in the alumina of 3-1mm; 14 parts in the alumina of 1-0mm; 15 parts of 200 purpose alumina fine powders;
8 parts of 180 purpose electrosmelted magnesite clinkers; 3 parts of alumina powders; 3 parts of silicon powders;
1 part of Stainless Steel Fibre; 0.008 part of tripoly phosphate sodium STPP; 0.006 part of Sodium hexametaphosphate 99.
As preferably, described electrosmelted magnesite clinker is 97 electrosmelted magnesite clinkers.
Described alumina can be selected high grade bauxite for use, and the alumina fine powder can be selected the high grade bauxite fine powder for use.
The resulting iron and steel of the present invention is with the refractory materials of intermediate receptacle, and anti-folding increases with compressive strength, the high temperature use properties is good.Can get through experiment, during 110 ℃ * 24h, folding strength 5.7～5.9Mpa, compressive strength 45.2～45.3Mpa, volume density 2.89～2.90g/cm
3During 1500 ℃ * 3h, folding strength 8.8～8.9, compressive strength 69.3～69.5Mpa, linear change is+0.6%, can effectively reduce the breakage rate of intermediate receptacle, increases work-ing life.
Embodiment
Through embodiment the present invention is done further description below.
Embodiment 1
The described iron and steel of present embodiment is with the refractory materials of intermediate receptacle, it is characterized in that it is made up of the following raw materials in parts by weight proportioning:
10 parts in the alumina of 20-8mm; 13 parts in the alumina of 8-5mm; 15 parts in the alumina of 5-3mm;
18 parts in the alumina of 3-1mm; 14 parts in the alumina of 1-0mm; 15 parts of 200 purpose alumina fine powders;
8 parts of 180 purpose electrosmelted magnesite clinkers; 3 parts of alumina powders; 3 parts of silicon powders;
1 part of Stainless Steel Fibre; 0.008 part of tripoly phosphate sodium STPP; 0.006 part of Sodium hexametaphosphate 99.
The described iron and steel of present embodiment is with the refractory materials of intermediate receptacle, and its ME is:
1, alumina is broken
2, screening: use vibratory screening apparatus that the alumina particle is sieved into the particle of particle diameter as 1-0mm, 3-1mm, 5-3mm, 8-5mm, 20-8mm;
3, batching: by above-mentioned weight proportion batching;
4, dried mixing: after the weighing according to the above ratio of each raw material, earlier all alumina and alumina fine powder were mixed in planetary-type mixer 7 minutes, remaining material is added in the planetary-type mixer mixed 5 minutes again, make finished product coating, carry out weighing, packing.(planetary-type mixer is the efficient whipping device to multiple powder mixing stirring, dispersion, homogeneous commonly used in a kind of industry.)
The described iron and steel of present embodiment with the performance (actual measurement) of the refractory materials of intermediate receptacle like following table:
The described iron and steel of present embodiment can be used for making current stabilizer with the refractory materials of intermediate receptacle.
Embodiment 2
The described iron and steel of present embodiment is with the refractory materials of intermediate receptacle, and described electrosmelted magnesite clinker is 97 electrosmelted magnesite clinkers, and other are with embodiment 1.
The described iron and steel of present embodiment with the performance (actual measurement) of the refractory materials of intermediate receptacle like following table:
Claims (2)
1. an iron and steel is with the refractory materials of intermediate receptacle, it is characterized in that it is made up of the following raw materials in parts by weight proportioning:
10 parts in the alumina of 20-8mm; 13 parts in the alumina of 8-5mm; 15 parts in the alumina of 5-3mm;
18 parts in the alumina of 3-1mm; 14 parts in the alumina of 1-0mm; 15 parts of 200 purpose alumina fine powders;
8 parts of 180 purpose electrosmelted magnesite clinkers; 3 parts of alumina powders; 3 parts of silicon powders;
1 part of Stainless Steel Fibre; 0.008 part of tripoly phosphate sodium STPP; 0.006 part of Sodium hexametaphosphate 99.
2. iron and steel according to claim 1 is characterized in that with the refractory materials of intermediate receptacle described electrosmelted magnesite clinker is 97 electrosmelted magnesite clinkers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010219686A CN101921120B (en) | 2010-07-07 | 2010-07-07 | Refractory material of intermediate container for steel making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010219686A CN101921120B (en) | 2010-07-07 | 2010-07-07 | Refractory material of intermediate container for steel making |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101921120A CN101921120A (en) | 2010-12-22 |
| CN101921120B true CN101921120B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010219686A Active CN101921120B (en) | 2010-07-07 | 2010-07-07 | Refractory material of intermediate container for steel making |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102773906B (en) * | 2012-07-09 | 2014-10-08 | 郑州东方安彩耐火材料有限公司 | Corundum sand mold for producing fused-cast alumina refractory materials and production technique thereof |
| CN103771885B (en) * | 2014-01-08 | 2015-11-25 | 长兴明晟冶金炉料有限公司 | Slag blocking wall mould material and slag blocking wall |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5888586A (en) * | 1995-05-19 | 1999-03-30 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Use of a water-containing fire-resistant ceramic casting material |
| CN1680059A (en) * | 2004-04-05 | 2005-10-12 | 宝山钢铁股份有限公司 | Bottom fire-proof material of large steel ladle |
-
2010
- 2010-07-07 CN CN201010219686A patent/CN101921120B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5888586A (en) * | 1995-05-19 | 1999-03-30 | Veitsch-Radex Aktiengesellschaft Fur Feuerfeste Erzeugnisse | Use of a water-containing fire-resistant ceramic casting material |
| CN1680059A (en) * | 2004-04-05 | 2005-10-12 | 宝山钢铁股份有限公司 | Bottom fire-proof material of large steel ladle |
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| CN101921120A (en) | 2010-12-22 |
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Address after: 313200 Deqing County Province, Huzhou City, the town of bell hill road, No., No. 130 Patentee after: Deqing Kerry high temperature materials Limited by Share Ltd Address before: 313220 Deqing County bell Industrial Zone, Huzhou, Zhejiang Patentee before: Kairui New Material Limited Company |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Refractories for intermediate vessels of iron and steel Effective date of registration: 20201209 Granted publication date: 20121010 Pledgee: Zhejiang Deqing Rural Commercial Bank Co.,Ltd. Zhongguan sub branch Pledgor: DEQING KAIRUI HIGH TEMPERATURE MATERIALS Corp. Registration number: Y2020980009042 |
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