CN101077523A - Method for preparing dry working lining - Google Patents
Method for preparing dry working lining Download PDFInfo
- Publication number
- CN101077523A CN101077523A CN 200710062203 CN200710062203A CN101077523A CN 101077523 A CN101077523 A CN 101077523A CN 200710062203 CN200710062203 CN 200710062203 CN 200710062203 A CN200710062203 A CN 200710062203A CN 101077523 A CN101077523 A CN 101077523A
- Authority
- CN
- China
- Prior art keywords
- working lining
- tundish
- magnesia
- dry
- pouring basket
- 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
- 238000000034 method Methods 0.000 title abstract description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 32
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 16
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims abstract description 7
- 239000008103 glucose Substances 0.000 claims abstract description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000009749 continuous casting Methods 0.000 abstract description 7
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 abstract description 3
- 239000011819 refractory material Substances 0.000 abstract description 2
- 230000003628 erosive effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000004576 sand Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000001095 magnesium carbonate Substances 0.000 description 4
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 4
- 235000014380 magnesium carbonate Nutrition 0.000 description 4
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000010459 dolomite Substances 0.000 description 3
- 229910000514 dolomite Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 2
- GUBGYTABKSRVRQ-PICCSMPSSA-N D-Maltose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052839 forsterite Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000000622 irritating effect Effects 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
- 239000010450 olivine Substances 0.000 description 2
- 229910052609 olivine Inorganic materials 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000011863 silicon-based powder Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 235000019795 sodium metasilicate Nutrition 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- -1 hydrocarbon oxygen compound Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The present invention relates to amorphous refractory material producing technology, and is especially process of producing dry lining for pouring basket. The technological scheme is that the dry lining for pouring basket is produced with magnesia in 85-95 wt% and glucose or citric acid in 5-15 wt%, and through mixing, vibration forming in mold, roasting at 200-400 deg.c, and demolding to obtain dry lining for pouring basket. The dry lining is used mainly in continuous casting pouring basket, and has the features of low cost, environment friendship, high erosion resistance, easy disintegration, etc.
Description
Technical field:
The present invention relates to the unshape refractory technical field, especially a kind of preparation method of tundish dry working lining.
Background technology:
Tundish is that molten steel is diverted to the intermediate store of crystallizer from ladle in the steel-making continuous casting production process, and is most important with many stoves continuous casting to guaranteeing clean steel-making.Tundish plays important effect with the quality of refractory quality to the quality stable and raising continuous casting steel that field trash, the maintenance steel of getting rid of in the molten steel flows.To bakie working lining with the requirement of refractory material be: anti-erosion, antiscour, good heat insulation is not polluted molten steel, is easy to construction and takes off bag etc.
At present, the tundish working lining changes magnesia, the calcareous unshape refractory of magnesium into by silica heat-insulating plate, form of construction work by build by laying bricks or stones change into manual smear, mechanically spraying, along with quoting of quick replacing mouth of a river technology, developed tundish dry vibratory material, for example:
" continuous casting tundish alkaline dry working lining " (CN 01115190.0) technology is the unsetting composition based on magnesia, and its component is the percentage composition meter by weight: magnesia 85-95%, boride 0.5-3.0%, thermoplastic 2-10%, phosphate 1-3%, fluoride 1-3%;
" the calcareous dry-type working lining of a kind of novel tundish magnesium " be technology (CN02117935.2), with synthetic magnesia-calcium clinker, passivation dolomite sand, passive lime stone sand, calcination dolomite sand, lime burning stone sand etc. is calcareous raw material, with iron scale, clay, silicon powder etc. is sintering aid, with resin, malt sugar, PVC is bond, through the even mixed dry type inner lining material that gets, at the scene by the construction of tundish mould tire, and with 150-350 ℃ of baking 1-3 hour, take off the mould tire, working lining;
" continuous casting tundish working lining " be technology (CN02116839.3), magnesia 80-95%, alumina 1-10%, mild-clay 1-5%, organic thermoplastic compound 2-15%;
" a kind of novel tundish dry working lining " (CN1459345A) and " a kind of continuous casting with tundish dry vibratory material and preparation method thereof " (CN200410061192.3) technology, with magnesia, olivine sand, synthetic magnesia-calcium clinker, passivation dolomite sand, calcination olivine sand is base stock, with aluminum sulfate, aluminium polychloride, halogen, waterglass and carbamate additives for low phosphorus hydrochlorate etc. is bond, with iron scale, clay, silicon powder is sintering aid, through the even mixed dry type inner lining material that gets;
" a kind of preparation method of tundish dry vibratory material " be technology (CN1821178A), is base stock with magnesia or forsterite, is bond with the sodium metasilicate, through the even mixed dry type inner lining material that gets.
The above-mentioned dry type material of making bond with phenolic resins makes prolong service life owing to not generating a large amount of eutectics under not moisture and the high temperature.But the phenolic resins price is higher on the one hand, makes that dry type material cost is higher; In bake process, have generations such as irritative gas ammonia, formaldehyde on the other hand, contaminated environment, the carbon after the resin charing, the tangible carburetting of Hydrogen Energy increase hydrogen.And be that the dry type material of bond has strong and stimulating gas to produce in baking or use with phosphate, chlorate, sulfate, contaminated environment.And be the dry type material of bond with the sodium metasilicate because existing of strong flux sodium oxide molybdena, and the service life of appreciable impact material and disintegration performance.
Summary of the invention:
The present invention seeks in order to solve the deficiency of existing dry type material, and provide a kind of and have low price, environmental friendliness, erosion-resisting characteristics is good and the preparation method of the tundish dry working lining of the characteristics such as easy of disintegrating.
For achieving the above object, the technical solution used in the present invention is: content mixes the magnesia of 85-95% with glucose or the citric acid of 5-15% by weight percentage, adopt the vibration moulding of mould tire after stirring,, obtain the tundish dry working lining after the demoulding 200-400 ℃ of baking.
Wherein the weight percentage of magnesia particle grating is: 5-0.074mm is 60-70%, and＜0.074mm is 30-40%.
Compared with prior art, it is bond that the present invention adopts cheaper glucose of price or citric acid because glucose and citric acid fusing point are low, but in bake process cold melt, make the dry type material produce intensity with the temperature continuous polymerization that raises; To compare all be the less hydrocarbon oxygen compound of molecular weight for glucose and citric acid and phenolic resins in addition, and easy oxidized eliminating in bake process does not have irritative gas to produce yet.So the dry type material that obtains is not easy to increase hydrogen to molten steel recarburization, and erosion-resisting characteristics is good, also be easy to disintegrate environmental friendliness.
Primary raw material magnesia among the present invention can also be used the forsterite material substitution.
The specific embodiment:
Below in conjunction with embodiment in detail the present invention is described in detail:
Embodiment 1:
By weight percentage: containing MgO and be 95% magnesite clinker is 90%, and citric acid is 10%.Wherein the weight percentage of magnesite clinker grain composition is: 5-0.074mm be 60-70%,＜0.074mm is 30-40%.
Above-mentioned raw materials is mixed, and the vibration moulding of mould tire is adopted in the back that stirs, and 200-300 ℃ of baking, obtains the tundish dry working lining after the demoulding.
It surveys index: MgO is 84.3%, bulk density: 200 ℃ * 3h2.12g/cm
3, compressive resistance: 200 ℃ * 3h 4.1MPa; 1500 ℃ * 3h8.6MPa; Line rate of change: 1500 ℃ * 3h-1.8%.This dry type material uses on 32 tons of tundish, and the life-span reaches more than 24 stoves, and turns over the bag disintegration easily.
Embodiment 2:
By weight percentage: containing MgO and be 97% magnesite clinker is 92%, and glucose is 8%.Wherein the weight percentage of magnesite clinker grain composition is: 5-0.074mm be 60-70%,＜0.074mm is 30-40%.
Above-mentioned raw materials is mixed, and the vibration moulding of mould tire is adopted in the back that stirs, and 200-300 ℃ of baking, obtains the tundish dry working lining after the demoulding.
It surveys index: MgO is 89.5%, bulk density: 200 ℃ * 3h2.16g/cm
3, compressive resistance: 200 ℃ * 3h 6.2MPa; 1500 ℃ * 3h8.3MPa; Line rate of change: 1500 ℃ * 3h-1.2%.This dry type material uses on 32 tons of tundish, and the life-span reaches more than 24 stoves, and turns over the bag disintegration easily.
Claims (2)
1, a kind of preparation method of tundish dry working lining is characterized in that content by weight percentage mixes the magnesia of 85-95% with glucose or the citric acid of 5-15%, and the vibration moulding of mould tire is adopted in the back that stirs, and 200-400 ℃ of baking, obtains after the demoulding.
2, according to the preparation method of claims 1 described tundish dry working lining, it is characterized in that the weight percentage of described magnesia particle grating is: 5-0.074mm is 60-70%, and＜0.074mm is 30-40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100622033A CN100453211C (en) | 2007-06-22 | 2007-06-22 | Method for preparing dry working lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100622033A CN100453211C (en) | 2007-06-22 | 2007-06-22 | Method for preparing dry working lining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101077523A true CN101077523A (en) | 2007-11-28 |
| CN100453211C CN100453211C (en) | 2009-01-21 |
Family
ID=38905280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100622033A Expired - Fee Related CN100453211C (en) | 2007-06-22 | 2007-06-22 | Method for preparing dry working lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100453211C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905315A (en) * | 2010-09-07 | 2010-12-08 | 河北理工大学 | Preparation method of continuous casting tundish dry-type working lining |
| CN101913893A (en) * | 2010-09-07 | 2010-12-15 | 河北理工大学 | Hot patching material for large face of converter |
| CN103351167A (en) * | 2012-12-28 | 2013-10-16 | 上海利尔耐火材料有限公司 | Preparation method of environmentally-friendly tundish dry working liner |
| CN103467111A (en) * | 2013-08-22 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Compound bonding agent for baking-free magnesium vibration material |
| CN103467109A (en) * | 2013-08-21 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Environment-friendly silicious dry-type material |
| CN104072166A (en) * | 2014-06-27 | 2014-10-01 | 河南竹林耐材有限公司 | Electric furnace bottom ramming mass |
| CN107140993A (en) * | 2017-07-13 | 2017-09-08 | 华北理工大学 | A kind of modified bonding agent |
| CN108715545A (en) * | 2018-06-21 | 2018-10-30 | 华北理工大学 | A kind of continuous casting tundish dry material and preparation method thereof |
| CN109678529A (en) * | 2019-03-06 | 2019-04-26 | 泰安市德诚耐火材料有限公司 | The bonding agent produced for steel-making continuous casting three-major-items and magnesia carbon brick |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2646367B1 (en) * | 1989-04-26 | 1994-04-01 | Daussan Cie | METHOD AND INSTALLATION FOR REALIZING A COATING ON THE INTERIOR WALLS OF A METALLURGICAL CONTAINER |
| AT394054B (en) * | 1990-04-12 | 1992-01-27 | Veitscher Magnesitwerke Ag | METALLURGICAL TUBE, METHOD AND DEVICE FOR PRODUCING THE LINING THEREOF |
| CN1459345A (en) * | 2002-05-21 | 2003-12-03 | 北京利尔耐火材料有限公司 | New type tundish dry working liner |
| CN1186149C (en) * | 2003-08-08 | 2005-01-26 | 王有志 | Prefabricated integrated lining of continuous casting pouring basket and its preparing method |
| CN1651352A (en) * | 2004-11-26 | 2005-08-10 | 武汉科技大学 | Tundish dry ribration material for continuous casting and its preparation method |
| CN100339170C (en) * | 2005-10-14 | 2007-09-26 | 河北理工大学 | Dry type working liner material for erosion resistance continuous casting tundish |
-
2007
- 2007-06-22 CN CNB2007100622033A patent/CN100453211C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905315A (en) * | 2010-09-07 | 2010-12-08 | 河北理工大学 | Preparation method of continuous casting tundish dry-type working lining |
| CN101913893A (en) * | 2010-09-07 | 2010-12-15 | 河北理工大学 | Hot patching material for large face of converter |
| CN101913893B (en) * | 2010-09-07 | 2012-08-22 | 河北理工大学 | Hot patching material for large face of converter |
| CN103351167A (en) * | 2012-12-28 | 2013-10-16 | 上海利尔耐火材料有限公司 | Preparation method of environmentally-friendly tundish dry working liner |
| CN103467109A (en) * | 2013-08-21 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Environment-friendly silicious dry-type material |
| CN103467111A (en) * | 2013-08-22 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Compound bonding agent for baking-free magnesium vibration material |
| CN104072166A (en) * | 2014-06-27 | 2014-10-01 | 河南竹林耐材有限公司 | Electric furnace bottom ramming mass |
| CN107140993A (en) * | 2017-07-13 | 2017-09-08 | 华北理工大学 | A kind of modified bonding agent |
| CN108715545A (en) * | 2018-06-21 | 2018-10-30 | 华北理工大学 | A kind of continuous casting tundish dry material and preparation method thereof |
| CN109678529A (en) * | 2019-03-06 | 2019-04-26 | 泰安市德诚耐火材料有限公司 | The bonding agent produced for steel-making continuous casting three-major-items and magnesia carbon brick |
| CN109678529B (en) * | 2019-03-06 | 2022-05-27 | 泰安市德诚耐火材料有限公司 | Binding agent for producing three major parts of steel-making continuous casting and magnesia carbon brick |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100453211C (en) | 2009-01-21 |
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Address after: Xinhua Xidao 063000 Hebei province Tangshan City Lunan District No. 46 Patentee after: Hebei United University Address before: Xinhua Xidao 063000 Hebei province Tangshan City Lunan District No. 46 Patentee before: Hebei Univ. of Science & Technology |
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Application publication date: 20071128 Assignee: Tangshan City Guo Liang Special fire-proof material Inc Assignor: Hebei United University Contract record no.: 2012990000702 Denomination of invention: Method for preparing dry working lining Granted publication date: 20090121 License type: Exclusive License Record date: 20120925 |
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Address after: Xinhua Xidao 063000 Hebei province Tangshan City Lunan District No. 46 Patentee after: North China Polytechnics Address before: Xinhua Xidao 063000 Hebei province Tangshan City Lunan District No. 46 Patentee before: Hebei United University |
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