CN1562869A - Formula of magnesian sliding plate bricks and fabricating technique - Google Patents
Formula of magnesian sliding plate bricks and fabricating technique Download PDFInfo
- Publication number
- CN1562869A CN1562869A CN 200410010211 CN200410010211A CN1562869A CN 1562869 A CN1562869 A CN 1562869A CN 200410010211 CN200410010211 CN 200410010211 CN 200410010211 A CN200410010211 A CN 200410010211A CN 1562869 A CN1562869 A CN 1562869A
- Authority
- CN
- China
- Prior art keywords
- highly
- millimeter
- purity magnesite
- micron
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
The characteristics are: mid particle size alumina micropowder and high-purify magnesia are selected and broken, then are separated into particle in three standards, the particles are grinder to fine powder and to be mixed with resin, then stand-by, resio is put by multi-port mode and formed by brick machine, temp. is controlled in range of 1550-1680 deg.C.
Description
Technical field:
The present invention relates to a kind of manufacturing of magnesia slide brick, it is by to the selecting for use of raw material, proportioning, suitable production technique, makes it have higher hot strength, the prescription and the production technique of a kind of magnesia slide brick of anti-molten steel aggressiveness and higher thermal shock resistance preferably.
Background technology:
Steel-making continuous casting is mainly aluminium carbon and two kinds of materials of aluminium zirconium carbon with the slide brick material at present, because the C element has good resistance to fouling and wear resistance, therefore be widely used in the slide brick, but because these two kinds of slide bricks contain the C element of 5-8%, in steel-making continuous casting uses, make in the slide plate a spot of C element infiltrate steel night easily, thereby molten steel is produced pollution, particularly influence the quality of variety steels such as soft steel, its anti-CaO erosional competency is poor simultaneously, and incompatibility Ca handles steel, the cast of steel grades such as Al/Si killed steel, when cast Al killed steel, the also easy and Al reaction of the oxide compound in the slide plate causes Al
2O
3Pile up and the obstruction blowhole generation accident.Steel-making continuous casting is also used a spot of corundum matter slide plate, zirconium matter slide plate, corundum mullite rock slide plate and magnesium spar matter slide plate in addition, and shortcomings such as its ubiquity cost height, suitable steel grade narrow range, thermal shock resistance difference influence the popularization of its product.
Summary of the invention:
Task of the present invention be propose to utilize the corrosion resistance of MgO strong, aboundresources, excellent characteristics such as cheap, be made into magnesia slide plate by operations such as selected raw material, rational gradation composition, mixing and high temperature burn till.Task of the present invention is done in such a way that a kind of prescription and production technique of magnesia slide brick, it is characterized in that: select Al for use
2O
3Content 〉=99%, meso-position radius are at the alumina powder of 2.5-1.5 micron, select MgO content 〉=97% highly-purity magnesite for use, and with it broken and sizing screening is 3-1 millimeter, 1-0.5 millimeter, three kinds of specification particles of 0.5-0 millimeter, with the fine powder that grinds into 90-0 micron, 50-0 micron respectively.In advance 2-4 part meso-position radius is mixed at the highly-purity magnesite fine powder of the highly-purity magnesite fine powder of the alumina powder of 2.5-1.5 micron, 8-12 part 90-0 micron and 19-25 part 50-0 micron and made powder mix; Get 29-39 part 3-1 millimeter highly-purity magnesite particle again, 13-18 part 1-0.5 millimeter highly-purity magnesite particle, 13-18 part 0.5-0 millimeter highly-purity magnesite particle stirs; Other gets 4-5 part resin, adds 1/2 earlier and mixes; Add again and mix in advance in the powder mix of system, add residue 1/2 resin again; All resins all adopt many degree of lip-roundings of funnel formula to add, the flare opening diameter is not more than 35mm, behind thorough mixing, by brick pressing machine moulding, moisture eliminator drying, burn till through 1550-1680 ℃ of high temperature, and then immersion oil, destructive distillation, punching, hoop-driving, grind, the face of being coated with is processed into magnesia slide plate.The present invention has following effect: 1. this kind slide plate has higher thermal-shock resistance, resistance to fouling and good hot strength; 2. have and do not increase C, can not have side effects molten steel; 3. cast can not cause Al in producing
2O
3Accumulation and stop up blowhole, excellent properties such as cast production safety etc., 4. this kind slide plate cost is low, all is lower than the cost of other all kinds of material slide plates; 5. it is wide to be suitable for the steel grade scope, is particularly suitable for the continuous casting operation of the various Clean Steels such as various big-and-middle-sized steel ladle pouring high-oxygen steel, high mangaenese steel, calcium treated steel of 100-400 ton.
Embodiment:
Major ingredient calculates with weight ratio:
Embodiment 1:
Select Al for use
2O
3Content 〉=99%, meso-position radius are at 2.5 microns alumina powder, select MgO content 〉=97% highly-purity magnesite for use, and with it broken and sizing screening is 3-1 millimeter, 1-0.5 millimeter, three kinds of specification particles of 0.5-0 millimeter, with the fine powder that grinds into 90-0 micron, 50-0 micron respectively.In advance 2 kilograms of meso-position radius are mixed at the highly-purity magnesite fine powder of the highly-purity magnesite fine powder of 2.5 microns alumina powder, 8 kilograms of 90-0 microns and 25 kilograms of 50-0 microns and made powder mix; Get 29 kilograms of 3-1 millimeter highly-purity magnesite particles again, 18 kilograms of 1-0.5 millimeter highly-purity magnesite particles, 18 kilograms of 0.5-0 millimeter highly-purity magnesite particles stir; Other gets 4 kilograms of resins, adds 1/2 earlier and mixes; Add again and mix the powder mix of system in advance, add residue 1/2 resin again; All resins all adopt many degree of lip-roundings of funnel formula to add, the flare opening diameter is not more than 35mm, behind thorough mixing, by brick pressing machine moulding, moisture eliminator drying, burn till (firing temperature is controlled at 1550 ℃) through high temperature, and then immersion oil, destructive distillation, punching, hoop-driving, grind, the face of being coated with is processed into magnesia slide plate.
It is as follows that magnesia slide plate high temperature burns till heating curve:
| Temperature range (℃) | Heat-up rate (℃/h) | Required time (h) |
| Igniting-100 | ????4-5 | ????20-25 |
| ????100-400 | ????12-14 | ????22-25 |
| ????400-1000 | ????15-16 | ????37-40 |
| ????1000-1500 | ????20-22 | ????23-25 |
| ????1500-1550 | ????5-6 | ????8-10 |
| ????1550±10 | Insulation | ????8 |
| Add up to | ????118-133 |
Embodiment 2:
Select Al for use
2O
3Content 〉=99%, meso-position radius are at 2.1 microns alumina powder, select MgO content 〉=97% highly-purity magnesite for use, and with it broken and sizing screening is 3-1 millimeter, 1-0.5 millimeter, three kinds of specification particles of 0.5-0 millimeter, with the fine powder that grinds into 90-0 micron, 50-0 micron respectively.In advance 2.5 kilograms of meso-position radius are mixed at the highly-purity magnesite fine powder of the highly-purity magnesite fine powder of 2.1 microns alumina powder, 9.5 kilograms of 90-0 microns and 23 kilograms of 50-0 microns and made powder mix; Get 32 kilograms of 3-1 millimeter highly-purity magnesite particles again, 16.5 kilograms of 1-0.5 millimeter highly-purity magnesite particles, 16.5 kilograms of 0.5-0 millimeter highly-purity magnesite particles stir; Other gets 4.3 kilograms of resins, adds 1/2 earlier and mixes; Add again and mix the powder mix of system in advance, add residue 1/2 resin again; All resins all adopt many degree of lip-roundings of funnel formula to add, the flare opening diameter is not more than 35mm, behind thorough mixing, by brick pressing machine moulding, moisture eliminator drying, burn till (firing temperature is controlled at 1580 ℃) through high temperature, and then immersion oil, destructive distillation, punching, hoop-driving, grind, the face of being coated with is processed into magnesia slide plate.
It is as follows that magnesia slide plate high temperature burns till heating curve:
| Temperature range (℃) | Heat-up rate (℃/h) | Required time (h) |
| Igniting-100 | ????4-5 | ????20-25 |
| ????100-400 | ????12-14 | ????22-25 |
| ????400-1000 | ????15-16 | ????37-40 |
| ????1000-1500 | ????20-22 | ????23-25 |
| ????1500-1580 | ????5-6 | ????13-16 |
| ????1580±10 | Insulation | ????8 |
| Add up to | ????123-141 |
Embodiment 3:
Select Al for use
2O
3Content 〉=99%, meso-position radius are at 1.8 microns alumina powder, select MgO content 〉=97% highly-purity magnesite for use, and with it broken and sizing screening is 3-1 millimeter, 1-0.5 millimeter, three kinds of specification particles of 0.5-0 millimeter, with the fine powder that grinds into 90-0 micron, 50-0 micron respectively.In advance 3 kilograms of meso-position radius are mixed at the highly-purity magnesite fine powder of the highly-purity magnesite fine powder of 1.8 microns alumina powder, 11 kilograms of 90-0 microns and 21 kilograms of 50-0 microns and made powder mix; Get 36 kilograms of 3-1 millimeter highly-purity magnesite particles again, 14.5 kilograms of 1-0.5 millimeter highly-purity magnesite particles, 14.5 kilograms of 0.5-0 millimeter highly-purity magnesite particles stir; Other gets 4.7 kilograms of resins, adds 1/2 earlier and mixes; Add again and mix the powder mix of system in advance, add residue 1/2 resin again; All resins all adopt many degree of lip-roundings of funnel formula to add, the flare opening diameter is not more than 35mm, behind thorough mixing, by brick pressing machine moulding, moisture eliminator drying, burn till (firing temperature is controlled at 1630 ℃) through high temperature, and then immersion oil, destructive distillation, punching, hoop-driving, grind, the face of being coated with is processed into magnesia slide plate.
It is as follows that magnesia slide plate high temperature burns till heating curve:
| Temperature range (℃) | Heat-up rate (℃/h) | Required time (h) |
| Igniting-100 | ????4-5 | ????20-25 |
| ????100-400 | ????12-14 | ????22-25 |
| ????400-1000 | ????15-16 | ????37-40 |
| ????1000-1500 | ????20-22 | ????23-25 |
| ????1500-1630 | ????5-6 | ????22-26 |
| ????1630±10 | Insulation | ????8 |
| Add up to | ????132-149 |
Embodiment 4:
Select Al for use
2O
3Content 〉=99%, meso-position radius are at 1.5 microns alumina powder, select MgO content 〉=97% highly-purity magnesite for use, and with it broken and sizing screening is 3-1 millimeter, 1-0.5 millimeter, three kinds of specification particles of 0.5-0 millimeter, with the fine powder that grinds into 90-0 micron, 50-0 micron respectively.In advance 4 kilograms of meso-position radius are mixed at the highly-purity magnesite fine powder of the highly-purity magnesite fine powder of 1.5 microns alumina powder, 12 kilograms of 90-0 microns and 19 kilograms of 50-0 microns and made powder mix; Get 39 kilograms of 3-1 millimeter highly-purity magnesite particles again, 13 kilograms of 1-0.5 millimeter highly-purity magnesite particles, 13 kilograms of 0.5-0 millimeter highly-purity magnesite particles stir; Other gets 5 kilograms of resins, adds 1/2 earlier and mixes; Add again and mix the powder mix of system in advance, add residue 1/2 resin again; All resins all adopt many degree of lip-roundings of funnel formula to add, the flare opening diameter is not more than 35mm, behind thorough mixing, by brick pressing machine moulding, moisture eliminator drying, burn till (firing temperature is controlled at 1680 ℃) through high temperature, and then immersion oil, destructive distillation, punching, hoop-driving, grind, the face of being coated with is processed into magnesia slide plate.
It is as follows that magnesia slide plate high temperature burns till heating curve:
| Temperature range (℃) | Heat-up rate (℃/h) | Required time (h) |
| Igniting-100 | ????4-5 | ????20-25 |
| ????100-400 | ????12-14 | ????22-25 |
| ????400-1000 | ????15-16 | ????37-40 |
| ????1000-1500 | ????20-22 | ????23-25 |
| ????1500-1680 | ????5-6 | ????30-36 |
| ????1680±10 | Insulation | ????8 |
| Add up to | ????140-159 |
Claims (2)
1. the prescription of a magnesia slide brick and production technique is characterized in that: select Al for use
2O
3Content 〉=99%, meso-position radius is at the alumina powder of 2.5-1.5 micron, select MgO content 〉=97% highly-purity magnesite for use, and with it broken and sizing screening is the 3-1 millimeter, 1-0.5 millimeter, 0.5-0 three kinds of specification particles of millimeter, grind into the 90-0 micron respectively, the fine powder of 50-0 micron, in advance with the alumina powder of 2-4 part meso-position radius at the 2.5-1.5 micron, the highly-purity magnesite fine powder of the highly-purity magnesite fine powder of 8-12 part 90-0 micron and 19-25 part 50-0 micron is mixed and is made powder mix, get 29-39 part 3-1 millimeter highly-purity magnesite particle again, 13-18 part 1-0.5 millimeter highly-purity magnesite particle, 13-18 part 0.5-0 millimeter highly-purity magnesite particle, stir, other gets 4-5 part resin, adding 1/2 earlier mixes, add again and mix in advance in the powder mix of system, add residue 1/2 resin again and mix, stand-by.
The prescription of 2 a kind of magnesia slide plates according to claim 1 and production technique, it comprises following processing step, alumina powder and highly-purity magnesite fine powder are stirred into powder mix in advance, each particle of highly-purity magnesite is mixed by a certain percentage, add 1/2 resin, add again and mix the powder mix of system in advance, adding residue 1/2 tree again refers to, all resins all adopt many degree of lip-roundings of funnel formula to add, the flare opening diameter is not more than 35mm, behind thorough mixing, by the brick pressing machine moulding, the moisture eliminator drying, burn till through high temperature, temperature is controlled at 1550-1680 ℃, and then immersion oil, destructive distillation, punching, hoop-driving, grind, the face of being coated with is processed into magnesia slide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010211 CN1234640C (en) | 2004-04-15 | 2004-04-15 | Formula of magnesian sliding plate bricks and fabricating technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410010211 CN1234640C (en) | 2004-04-15 | 2004-04-15 | Formula of magnesian sliding plate bricks and fabricating technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562869A true CN1562869A (en) | 2005-01-12 |
| CN1234640C CN1234640C (en) | 2006-01-04 |
Family
ID=34477843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410010211 Expired - Fee Related CN1234640C (en) | 2004-04-15 | 2004-04-15 | Formula of magnesian sliding plate bricks and fabricating technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1234640C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100377812C (en) * | 2006-08-04 | 2008-04-02 | 河南省伯马股份有限公司 | Long lifetime continuous casting slide board and manufacture technique for the same |
| CN101381239B (en) * | 2008-10-13 | 2012-05-23 | 安徽省合普热陶瓷有限责任公司 | Magnesium oxide precast refractory material and construction method thereof |
| CN105967702A (en) * | 2016-05-06 | 2016-09-28 | 湖南湘钢瑞泰科技有限公司 | Slide gate brick and preparation method thereof |
| CN106495716A (en) * | 2016-10-26 | 2017-03-15 | 马鞍山利尔开元新材料有限公司 | A kind of ZrB2 SiC powder modifieds sintering free low carbon magnesium carbonaceous slide plate and production technology |
| CN109996772A (en) * | 2016-10-27 | 2019-07-09 | 黑崎播磨株式会社 | Magnesia carbon brick and its manufacturing method |
-
2004
- 2004-04-15 CN CN 200410010211 patent/CN1234640C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100377812C (en) * | 2006-08-04 | 2008-04-02 | 河南省伯马股份有限公司 | Long lifetime continuous casting slide board and manufacture technique for the same |
| CN101381239B (en) * | 2008-10-13 | 2012-05-23 | 安徽省合普热陶瓷有限责任公司 | Magnesium oxide precast refractory material and construction method thereof |
| CN105967702A (en) * | 2016-05-06 | 2016-09-28 | 湖南湘钢瑞泰科技有限公司 | Slide gate brick and preparation method thereof |
| CN105967702B (en) * | 2016-05-06 | 2019-05-17 | 湖南湘钢瑞泰科技有限公司 | A kind of sliding plate brick and preparation method thereof |
| CN106495716A (en) * | 2016-10-26 | 2017-03-15 | 马鞍山利尔开元新材料有限公司 | A kind of ZrB2 SiC powder modifieds sintering free low carbon magnesium carbonaceous slide plate and production technology |
| CN109996772A (en) * | 2016-10-27 | 2019-07-09 | 黑崎播磨株式会社 | Magnesia carbon brick and its manufacturing method |
| CN109996772B (en) * | 2016-10-27 | 2021-05-18 | 黑崎播磨株式会社 | Magnesia carbon brick and its making process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1234640C (en) | 2006-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101143795B (en) | Tamping material | |
| CN101717246B (en) | Method for preparing high alumina castable without being moistened by aluminum liquid | |
| CN102584293B (en) | Method for preparing magnesium-zirconium-carbon slide gate nozzle | |
| CN102329137B (en) | Carbon-free alumina-magnesia unburned brick and preparation method and application thereof | |
| CN102167569B (en) | Bauxite-based nanometer composite oxide ceramic bond A1203-MgO-C unfired product and preparation method thereof | |
| CN101555153A (en) | Carbon-spinel magnesium fire-resistant castable wrapped with nano Al2O3 and MgO films and preparation method thereof | |
| CN104909771A (en) | Calcium aluminate cement-combined corundum castable and preparation method thereof | |
| CN103539467A (en) | Mechanically-pressed carbon-free corundum spinel ladle brick as well as preparation method thereof | |
| CN101219902A (en) | Environment-protection dry type vibrating material and production method thereof | |
| CN101489956A (en) | Fireproof casting insert made of fireproof raw materials and fireproof casting produced from the insert | |
| CN104909772B (en) | Aluminous cement combined corundum matter castable containing compound additive and preparation method thereof | |
| CN105377792A (en) | Spinel forming refractory compositions, their method of production and use thereof | |
| CN106495712A (en) | Unburned ladle brick and preparation method thereof pressed by magnesium gel combined corundum spinelle machine | |
| CN105385848A (en) | Preparation method of iron ore powder pelletized magnesian binding agent | |
| CN101602595A (en) | Silicasol-combined corundum castable and prepare the method for abrasion-proof prefabricated component | |
| CN101077523A (en) | Method for preparing dry working lining | |
| CN102424589A (en) | Fireproof corundum mullite pouring material | |
| CN1117045C (en) | Chromium-aluminium spinel refractory material | |
| CN1234640C (en) | Formula of magnesian sliding plate bricks and fabricating technique | |
| CN101717265A (en) | Anti-penetration tundish dry liner | |
| CN103121849B (en) | Ferrosilicon-added slide plate refractory material and production method thereof | |
| CN104341163B (en) | A kind of ladle pocket block joint filler | |
| CN104311053A (en) | High-strength washing-resistant castable material for tundish of continuous casting machine | |
| CN1280231C (en) | Lining material composition of mains frequency core induction melt furnace | |
| CN102807380A (en) | Magnesia-carbon castable and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060104 Termination date: 20170415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |