CN101434491A - Refractory repairing material, method for preparing the same and composition comprising the same - Google Patents
Refractory repairing material, method for preparing the same and composition comprising the same Download PDFInfo
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- CN101434491A CN101434491A CNA2008101744920A CN200810174492A CN101434491A CN 101434491 A CN101434491 A CN 101434491A CN A2008101744920 A CNA2008101744920 A CN A2008101744920A CN 200810174492 A CN200810174492 A CN 200810174492A CN 101434491 A CN101434491 A CN 101434491A
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- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/20—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in magnesium oxide, e.g. forsterite
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Abstract
The invention provides a fire resistance maintaining material stock of pudding and steel-making equipment, which has fine sintering property and corrosion resistance, and a manufacturing method and maintaining material thereof. Material containing magnesia (MgO) and silicon oxide (SiO2) is combined after being pulverized in order to enable content of the magnesia (MgO) for maintaining material stock to be 50-80 weight percent; through manners of mixing, calcining under high temperature or melting, and the like, maintaining material applied to protecting pudding and steel-making equipment with indefinite form and fine bond strength for a subject, corrosion resistance and sintering property is provided utilizing the synthesis stock.
Description
Technical field
The present invention relates to smelt iron, make steel resistivity against fire maintenance materials raw material and manufacture method and maintenance materials with equipment, more particularly, the invention provides and a kind ofly be used for being maintained in hot metal ladle (ladle), tundish (tundish) raw material manufacture method various device inside, the resistivity against fire maintenance materials of etc.ing that ironmaking, steel-making uses, reach the raw material by this method manufacturing and comprise the maintenance materials constituent of this raw material.
Background technology
Various furnaces such as electric furnace, electromagnetic oven; metal furnace shell or framework inside in container shapes have the resistivity against fire thing; except in a single day starting the blast furnace that till casting again, does not go out; after handling a certain amount of molten steel; for protecting above-mentioned refractory body or, furnace interior regularly being safeguarded for safeguarding the position of damage.
Fill the molten steel more than 1500 ℃ in the stove, various chemical reactions such as decarburizing reaction, depickling reaction can take place, the erosion action that the furnace wall invar water that contacts with above-mentioned molten steel causes and can damaging if suitably do not safeguard, can cause accident such as whole furnace breakage to take place.
The aforesaid furnace wall that contacts with molten steel is formed by refractory brick casting usually, the not burning in high temperature more than 1500 ℃ at least of such refractory brick, fully keeps its intensity, and can hold out against chemical action etc.
That is, refractory brick will possess the refractoriness height, and intensity or thermal shock resistance be big, to conditions such as chemical erosion are stronger.The furnace wall that maintenance is made of the refractory brick that satisfies this type of condition can be divided into casting again and partly safeguard two kinds according to erosion, degree of injury.Casting is very serious at the degree of injury of partial portion again, in the time of only can not making damage location recover standard state by surface maintenance, remove and cast again with new refractory brick behind its damage location or refractory brick has arrived the critical life-span, the maintenance of carrying out when needing full maintenance; Part safeguards it is the maintenance of implementing when the surface element bit loss that the furnace wall is only arranged is hindered or only just can make furnace wall normalizing by maintenance.
Particularly under the situation that above-mentioned part is safeguarded, under the heated hot state of stove, implement to safeguard.Carry out that heat is safeguarded like this because be, when the furnace in the operation is cooled off fully, safeguard that the back reheat need expend than macro-energy and time.
As mentioned above, in two kinds of situations of furnace wall maintenance, part or comprehensive the casting again because the new refractory brick of use is cast the furnace wall again, thereby do not have the other problems generation after the casting again.But under the situation that part is safeguarded, because under hot state, refractory materials is sprayed and spreads on the furnace wall, if thereby the bonding force between the maintenance level of the former furnace wall of damage and covering is insufficient, then molten steel can make above-mentioned maintenance level come off easily, cause the position of damage before safeguarding and then sharply damage, even can cause the furnace wall breakage.
In addition; the maintenance of the furnace wall of being undertaken by spray regime; not only play the furnace wall that makes damage and recover normal effect; and except that the maintenance of the furnace wall of above-mentioned damage; regularly safeguard for problem such as the damage that prevents the normal furnace wall that high-temperature molten steel causes or erosion, with form on the surface, furnace wall wall protection with coating to play the effect in prolongation furnace wall life-span.
As mentioned above; the spray material that the part of the spray regime of implementing under hot state for the life-span of the various furnace walls that prolong normal or damage is used in safeguarding; be ejected into the furnace wall to be bonded in the refractory materials on the furnace wall for using spray gun to mix with high pressure water; not only require to have cohesiveness, erosion resistance preferably with the refractory brick that forms the furnace wall; after also require spraying explosion does not take place or peel off, and curing time to be lacked.
As above-mentioned spray material commonly used in the past be the silica type mineral binder bond, but, cause silica type mineral binder bond effect to reduce along with strict day by day for the operational condition that improves the steel quality furnace.Recently, develop spray material, but it have erosion resistance and the low shortcoming of tack at magnesium oxide (MgO) or rhombspar interpolation high resolution binding agent.
That is, the above-mentioned spray material that constitutes by magnesium oxide or rhombspar class, because of the coking property deficiency, when being attached to the furnace wall by thermojet, moisture evaporates rapidly, causes the sticking power of itself and furnace wall to reduce.
In addition, the tack of above-mentioned spray material is subjected to the temperature effect of furnace wall bigger, usually in the temperature more than 800 ℃, implement to spray, therefore the water that sprays with spray material rapidly evaporation and the high-vapor-pressure that produces cause the spray material can not be attached to the surface, furnace wall, its probability that comes off is bigger.
In addition, the reactive force of above-mentioned vapour pressure can cause the state labile attached to the spray material on the furnace wall, and construction back is dropped into the impact of generations such as scrap iron or molten steel eddy current and it is easily come off.
Promptly; during thermojet; the low spray material of adhesion strength is because of the heat sintering of furnace wall; be in the easy damaged state before combining forming strong tile with furnace wall surface; therefore require sintering rapid; the spray material that general commonly used magnesium oxide or rhombspar are main raw material is longer because of its sintering time, and the in the initial stage of that the probability that comes off is higher after construction, has the shortcoming that reduces wall protection efficient.
In addition, is the shortcoming of the spray material of main raw material for solving above-mentioned with magnesium oxide or rhombspar, developing carbon is spray material, it sprays the back makes the wedding agent carbonization because of stove heat, to produce erosion resistance and the good carbon bond of cohesive strength, but be difficult to mix with moisture during constructions such as resin that uses in order to produce carbon bond or pitch, the carbonization postadhesion is that curing time is elongated to the time of furnace wall, and easily oxidized shortcoming.
In addition, the forsterite in the past (forsterite) that is used for smelting iron, makes steel with various device is the indefinite form maintenance materials, with MgO-SiO such as natural peridotites, peridotites, serpentine, talcums
2Be not sintering or sintering and use of raw material, but contain more Fe
2O
3Deng impurity, can not from raw material, form the forsterite crystallization phases on the whole, its compactness is lower, is that the indefinite form maintenance materials is compared with common magnesium oxide, erosion resistance a little less than, be difficult to be applied in the industrial production.
Summary of the invention
The present invention is directed to above problem, provide a kind of with the forsterite be the maintenance materials raw material of host phase manufacture method, and utilize ironmaking, the steelmaking equipment maintenance materials of the raw material that obtains by this method manufacturing.
For achieving the above object, the invention provides a kind of natural boltonite that do not use is mineral, the material of needs is made up and synthetic, so that it has the forsterite mineral facies in theory, makes the method for the maintenance materials raw material of ironmaking, steelmaking equipment.
A kind of ironmaking or the steel-making manufacture method with the maintenance of the equipment material feedstock is provided in the present invention, comprise: be selected from more than one of the group formed by magnesite, light calcined magnesia and magnesia calcined to containing (A), and be selected from following (B) and more than one mineral (C) are calcined or the fused step.
Here, can enumerate dead-burned magnesia (Dead BurnedMagnesia:DBM) etc. as magnesia calcined, above-mentioned (B) is more than one mineral that are selected from the group be made up of peridotites, serpentine, talcum, pyroxene, (C) is more than one mineral that are selected from the group be made up of silica and silica sand.
In the aforesaid method, utilize the ironmaking of calcination process or the manufacture method that the maintenance materials raw material of equipment is used in steel-making, comprise the steps:
Be selected from more than one of the group formed by magnesite, light calcined magnesia and magnesia calcined to containing (A), and be selected from above-mentioned (B) and more than one mineral (C) are pulverized and the blended step:
With above-mentioned mixing and crushed material be shaped, the exsiccant step; And
Above-mentioned exsiccant shaping thing is carried out the incinerating step.
In addition, in the aforesaid method, use the ironmaking of fusion operation or the manufacture method that the maintenance materials raw material of equipment is used in steel-making, comprise the steps:
Be selected from more than one of the group formed by magnesite, light calcined magnesia and magnesia calcined to containing (A), and be selected from above-mentioned (B) and more than one mineral (C) are pulverized and the blended step: and
The step of above-mentioned mixing of fusion and crushed material.
In above-mentioned pulverizing and blended step, can pulverize the back and mix, or mix the back and pulverize, so that the final content of magnesia of the raw material that produces becomes 50～80 weight %, preferably become 60～70 weight %.
The above-mentioned maintenance materials raw material that produces is the host phase with the forsterite, is secondary ore phase with periclasite (periclase).
Specifically, when making the above-mentioned starting material of maintenance materials raw material pulverizing of the present invention, preferably carry out micro mist under the situation of calcination process and pulverize utilizing; Can only carry out the pulverizing of coarse crushing degree (below the particle diameter 10mm) under the situation of utilizing the fusion operation.
Then, after above-mentioned measuring raw materials, the mode of avoiding producing skewness in mixing roll to add moisture is mixing more than 20 minutes, so that the content of magnesia in the final maintenance materials raw material becomes 50～80 weight %, preferably becomes 60～70 weight %.
After this, utilizing under the situation of calcination process, the mixing thing that the use forming mill will be fully mixing carries out drying after being shaped with spherical or brick shape.For removing the moisture drying temperature, carry out more than 10 hours dry more than 110 ℃.
With the molding spherical or the brick shape that the is dried calcining furnace of packing into, with more than 1500 ℃, preferably 1500～1800 ℃ temperature maintenance made it form fine and close calcined body and forsterite mineral facies more than 3 hours.
On the other hand, under the situation of utilizing the fusion operation, with above-mentioned mixing thing after fully mixing put into carry out fusion in the electric smelter after, cool off with the method for seasoning.Steel ingot after the fusion (ingot) can be pulverized or cut into necessary size, as the maintenance materials raw material.
Melt temperature is variant because of the composition of mixture, approximately carries out fusion with 1850～2200 ℃.
In addition, the invention provides the furnace wall maintenance materials raw material that produces by above-mentioned manufacture method.
In addition, the present invention also provides the magnesium oxide that comprises above-mentioned furnace wall maintenance materials raw material and optionally append and the ironmaking that constitutes or the maintenance materials of steelmaking equipment.
Above-mentioned maintenance materials can also comprise that silicic acid is that binding agent or phosphoric acid are binding agent.
When making maintenance materials, the maintenance materials raw material pulverizing that above-mentioned calcining is made is mixed with magnesium oxide or tackiness agent.
Above-mentioned ironmaking or steel-making can be enumerated electric stove, electric furnace, hot metal ladle, RH (Rheinstahl Heraeus) soaking tub or tundish etc. with equipment, but are not limited thereto, and needing because of high-temperature molten steel etc. can be used for arbitrary equipment of maintenance.
Above-mentioned maintenance materials can be easily be suitable for attached to the form of aforesaid device inwall etc. with spray material or coating material etc.
The invention effect
The forsterite that utilizes of the present invention is the indefinite form maintenance materials that raw material that the raw material synthetic method produces is made, its coking property and excellent corrosion resistance, the life-span that can improve steel-making, ironmaking refractory body built-in material.
Embodiment
As mentioned above, the present invention is the method that the maintenance materials raw material of equipment is used in a kind of synthetic manufacturing ironmaking, steel-making, as magnesium oxide (MgO) source, silicon oxide (SiO
2) source utilizes magnesite (MgCO
3), to be combined into the content of magnesia that forms the forsterite mineral facies in theory be 50～80 weight % for light-burned (1ight burned) magnesium oxide, magnesia calcined, peridotites, serpentine, pyroxene, silica and silica sand etc., the composition of 60～70 weight % is preferably pulverized, high-temperature calcination or fusion be with the synthetic maintenance materials raw material of making.
The indefinite form maintenance materials of the synthesis material that use produces by above-mentioned manufacture method and used MgO-SiO in the past
2The indefinite form maintenance materials of based material is compared excellent corrosion resistance, is that the indefinite form maintenance materials is compared coking property and excellent corrosion resistance with common magnesium oxide, can make the product in the life-span that prolongs the refractory materials built-in material.
As shown in table 1, peridotites in the past is that the raw material fusing point is low, as is used to smelt iron, make steel the temperature of about 1550～1700 ℃ of service temperatures, can increase erosion, is raw material by synthetic forsterite therefore, improves its erosion resistance.
Table 1
| The mineral name | Composition formula | Fusing point (℃) | Other |
| Forsterite (Forsterite) | 2MgO.SiO 2 | 1890 | Thermally-stabilised |
| Fayalite (Fayalite) | 2FeO.SiO 2 | 1280 | |
| Antigorite (Antigorite) | 3MgO.2SiO 2.2H 2O | 800 ℃: change into forsterite | |
| Periclasite (Periclase) | MgO | 2800 | Thermally-stabilised |
| Enstatite (Enstatite) | MgO.SiO 2 | More than 1050 ℃ | |
| Clinoenstatite (Clinoenstatite) | MgO.SiO 2 | 1577 | |
| Talcum (Talc) | 3MgO.4SiO 2.H 2O | 900～1000 ℃ of dehydrations are shifted |
The present invention is described in detail by following embodiment.Only in order to explanation the present invention, content of the present invention is not limited to embodiment to following embodiment.
At first, it is as shown in table 2 below to be used to make the raw-material chemical ingredients of raw material of maintenance materials of the present invention.
Table 2
*L.O.I: loss on ignition (Loss of Ignition)
Raw-material combination ratio at following table 3 expression conventional example, embodiment, comparative example.Conventional example is the starting material that in the past were used for maintenance materials, in the comparative example final magnesian content is adjusted into beyond the scope of the invention.
Micro mist is broken to be configured as 230 * 114 * 65mm size with carrying out after the combination of raw materials of table 3, puts into test and after 24 hours, puts into shuttle kiln (Shuttle Kiln) with 1500 ℃ of calcinings 3 hours with 110 ℃ of dryings with drying oven.The rerum natura result of the raw material that is synthesized is as shown in table 3.
Table 4 expression is safeguarded the example made from spray material with the synthetic raw material as electric stove, also represents simultaneously its result relatively.
Table 4
*DBM (Dead Burned Magnesia): dead-burned magnesia
In the above-mentioned table 4, compressive strength and residual wires expansion velocity of variation are tested, are calculated according to KSL 3503 and KSL 3117 respectively, cohesive strength is with above-mentioned each constituent of refractory brick surface applied 5mm thickness in the steel melting furnace furnace wall, after 1350 ℃ of calcining, adhering to, the 1Kg steel ball is fallen 10 times to its surface from 50cm is highly empty, observe the crackle that the calcining surface takes place, the situation that complete crackle takes place is labeled as " * ", begin have the situation of crackle to be labeled as " zero ", not having crackle or only falling at steel ball a little has the situation of microcrack to be labeled as " ◎ ".
As shown in table 4, the characteristic of expression adhesion strength and excellent corrosion resistance in the electric stove spray material refractory materials that uses the synthesis material of making by the present invention.
Claims (13)
1. ironmaking or steel-making are with the manufacture method of maintenance of the equipment material feedstock, it is characterized in that, comprise being selected from more than one of the group formed by magnesite, light calcined magnesia and magnesia calcined, and be selected from following (B) and more than one mineral (C) are calcined or the fused step containing (A):
(B) be selected from more than one mineral of the group formed by peridotites, serpentine, talcum and pyroxene;
(C) be selected from more than one mineral of the group formed by silica and silica sand.
2. ironmaking according to claim 1 or steel-making is characterized in that with the manufacture method of maintenance of the equipment material feedstock, comprising:
Be selected from more than one of the group formed by magnesite, light calcined magnesia and magnesia calcined to containing (A), and be selected from described (B) and more than one mineral (C) are pulverized and the blended step:
With described mixing and crushed material be shaped, the exsiccant step; And
Described exsiccant shaping thing is carried out the incinerating step.
3. ironmaking according to claim 1 or steel-making is characterized in that with the manufacture method of maintenance of the equipment material feedstock, comprising:
Be selected from more than one of the group formed by magnesite, light calcined magnesia and magnesia calcined to containing (A), and be selected from described (B) and more than one mineral (C) are pulverized and the blended step: and
The step of described mixing of fusion and crushed material.
4. according to claim 2 or 3 described ironmaking or the manufacture method of using the maintenance of the equipment material feedstock of making steel, it is characterized in that, in described pulverizing and blended step, material is measured, so that the final content of magnesia of the raw material that produces is 50～80 weight %.
5. ironmaking according to claim 4 or steel-making is characterized in that with the manufacture method of maintenance of the equipment material feedstock, in described pulverizing and blended step, material are measured, so that the final content of magnesia of the raw material that produces is 60～70 weight %.
6. ironmaking according to claim 1 or steel-making is characterized in that with the manufacture method of maintenance of the equipment material feedstock the described maintenance materials raw material that produces is the host phase with the forsterite, are secondary ore phase with periclasite.
7. ironmaking according to claim 1 and 2 or steel-making is characterized in that with the manufacture method of maintenance of the equipment material feedstock described calcining is carried out under 1500～1800 ℃ of temperature.
8. according to claim 1 or 3 described ironmaking or the manufacture method of using the maintenance of the equipment material feedstock of making steel, it is characterized in that described being melted under 1850～2200 ℃ of temperature carried out.
9. ironmaking or steel-making are with the maintenance materials raw material of equipment, and it is made with maintenance of the equipment material feedstock manufacture method by each described ironmaking in the claim 1 to 3 or steel-making.
10. ironmaking or steel-making are with the maintenance materials of equipment, and it comprises described maintenance materials raw material of claim 9 and the magnesium oxide that optionally appends.
11. ironmaking according to claim 10 or steel-making is characterized in that with the maintenance materials of equipment described maintenance materials comprises that also silicic acid is that binding agent or phosphoric acid are binding agent.
12. ironmaking according to claim 10 or steel-making is characterized in that with the maintenance materials of equipment described ironmaking or steel-making are any equipment that is selected from the group of being made up of electric stove, electric furnace, hot metal ladle, RH soaking tub, tundish with equipment.
13. ironmaking according to claim 10 or steel-making is characterized in that with the maintenance materials of equipment described maintenance materials is spray material or coating material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20080085073 | 2008-08-29 | ||
| KR1020080085073 | 2008-08-29 | ||
| KR1020080097128 | 2008-10-02 |
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| Publication Number | Publication Date |
|---|---|
| CN101434491A true CN101434491A (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101744920A Pending CN101434491A (en) | 2008-08-29 | 2008-11-07 | Refractory repairing material, method for preparing the same and composition comprising the same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2010053012A (en) |
| KR (1) | KR100890626B1 (en) |
| CN (1) | CN101434491A (en) |
| WO (1) | WO2010024497A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295293A (en) * | 2011-06-14 | 2011-12-28 | 辽宁科技大学 | Method for synthesizing high purity forsterite with mine tailings of magnesite and talcum |
| CN103833385A (en) * | 2012-11-27 | 2014-06-04 | 宝山钢铁股份有限公司 | Slag bonding preventing coating for steel ladle working layer brick |
| CN109020575A (en) * | 2018-09-05 | 2018-12-18 | 云南濮耐昆钢高温材料有限公司 | A kind of silica fire resistant mud of useless silica brick production |
| CN112321308A (en) * | 2020-11-25 | 2021-02-05 | 辽宁科技大学 | Preparation method of forsterite low-iron refractory homogeneous material |
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| KR101023444B1 (en) | 2010-07-29 | 2011-03-24 | 주식회사 에코올리빈 | Filler made of serpentinite in tap-hole of eccentric bottom tapping of electric arc furnace |
| US10150700B2 (en) | 2011-06-30 | 2018-12-11 | Wayne State University | Hybrid magnesium cement and method of manufacture |
| US9212093B2 (en) | 2011-06-30 | 2015-12-15 | NTH Consultants, Ltd. | Hybrid magnesium cement and method of manufacture |
| KR101346226B1 (en) | 2013-03-06 | 2014-01-02 | 대한민국 | Inorganic mending material for stone cultural heritage |
| CN109553311B (en) * | 2019-02-01 | 2020-09-01 | 东北大学 | Method for preparing high-density magnesite by magnesite microwave sintering |
| CN109650753B (en) * | 2019-02-01 | 2020-08-04 | 东北大学 | Method for preparing high-density magnesite by discharging plasma sintering of magnesite |
| CN109534698B (en) * | 2019-02-01 | 2020-08-04 | 东北大学 | Method for preparing high-activity magnesium oxide by using magnesite through microwave activation |
| CN111470852A (en) * | 2019-08-27 | 2020-07-31 | 北京利尔高温材料股份有限公司 | Large fabric for converter |
| KR102116577B1 (en) * | 2019-10-15 | 2020-05-28 | 서동규 | Self-heating ceramic mortar composition which can be repaired in cold winter environment and cold warehouse floor and construction method of winter concrete structure using same |
| EP4359362A1 (en) * | 2021-06-23 | 2024-05-01 | Lhoist Recherche et Développement S.A. | Composition suitable for hot repairing refractories |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2747088B2 (en) * | 1990-05-31 | 1998-05-06 | 新日本製鐵株式会社 | Thermal spray coating material and thermal spray coating heat resistant member |
| JPH04130066A (en) * | 1990-09-20 | 1992-05-01 | Harima Ceramic Co Ltd | Magnesia-olivine monolithic refractory material |
| KR100221802B1 (en) | 1996-12-24 | 1999-09-15 | 신승근 | A spray material |
| KR19990052226A (en) | 1997-12-22 | 1999-07-05 | 이구택 | Tundish dry material |
| KR100259979B1 (en) * | 1997-12-30 | 2000-06-15 | 신승근 | Spray refractory for repair of refining furnace |
| KR200259979Y1 (en) * | 2001-10-16 | 2002-01-09 | 포항종합제철 주식회사 | Apparatus for supplementing of braking force of magnetic brake |
| KR100499360B1 (en) | 2002-11-08 | 2005-07-04 | 주식회사 원진 | The forsterite spray mixture for repairing the inner wall surface of steel making furnace |
| JP4273099B2 (en) * | 2005-07-29 | 2009-06-03 | 黒崎播磨株式会社 | Spraying material for repairing electric furnace lining for steelmaking and method for repairing spraying of electric furnace lining for steelmaking using the same |
-
2008
- 2008-10-02 KR KR1020080097128A patent/KR100890626B1/en not_active IP Right Cessation
- 2008-10-23 WO PCT/KR2008/006274 patent/WO2010024497A1/en active Application Filing
- 2008-11-06 JP JP2008285167A patent/JP2010053012A/en active Pending
- 2008-11-07 CN CNA2008101744920A patent/CN101434491A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295293A (en) * | 2011-06-14 | 2011-12-28 | 辽宁科技大学 | Method for synthesizing high purity forsterite with mine tailings of magnesite and talcum |
| CN103833385A (en) * | 2012-11-27 | 2014-06-04 | 宝山钢铁股份有限公司 | Slag bonding preventing coating for steel ladle working layer brick |
| CN109020575A (en) * | 2018-09-05 | 2018-12-18 | 云南濮耐昆钢高温材料有限公司 | A kind of silica fire resistant mud of useless silica brick production |
| CN112321308A (en) * | 2020-11-25 | 2021-02-05 | 辽宁科技大学 | Preparation method of forsterite low-iron refractory homogeneous material |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010053012A (en) | 2010-03-11 |
| WO2010024497A1 (en) | 2010-03-04 |
| KR100890626B1 (en) | 2009-03-27 |
| KR20080099216A (en) | 2008-11-12 |
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