CN102432307A - Powder composition for refractory castable and refractory castable equipped therewith - Google Patents
Powder composition for refractory castable and refractory castable equipped therewith Download PDFInfo
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- CN102432307A CN102432307A CN2011102587789A CN201110258778A CN102432307A CN 102432307 A CN102432307 A CN 102432307A CN 2011102587789 A CN2011102587789 A CN 2011102587789A CN 201110258778 A CN201110258778 A CN 201110258778A CN 102432307 A CN102432307 A CN 102432307A
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Abstract
The invention provides the powder composition for a refractory castable and a refractory castable equipped therewith. The powder composition for refractory castable is high in breaking strength, light in weight and low in thermal conductivity. Alumina-zirconia hollow particles are adopted as the essential ingredients of the powder composition for a refractory castable. The alumina-zirconium hollow particles comprise 67-99 % of Al2O3 by mass and 1-33 % of ZrO2 by mass with the total mass thereof over 96%.
Description
Technical field
The present invention relates to refractory castable with powder composition and the refractory castable that uses it, the refractory castable that particularly relates to the air retaining wall that is suitable for forming industrial furnaces such as process furnace is with its refractory castable of powder composition and use.
Background technology
Industrial furnaces such as common process furnace are at the inboard lining cutting unshape refractory of outermost furnace shell (casing) (being also referred to as iron sheet).The 3-tier architecture that is followed successively by heat-insulating shield, adiabatic mould material, refractory castable from the side near furnace shell is processed in the lining cutting of this unshape refractory usually.
Yet, in recent years, censured, from reducing CO by the environmental degradation that Global warming causes
2The necessity of quantity discharged, for energy-conservationization, consumption reductionization and expectation improves its performance, no exception as far as refractory castable.The thermosteresis of the refractory castable of lightweight and low heat conductivity reduces when keeping existing performance, can help energy-conservationization, consumption reductionization.And then, through with himself lighting, operation etc. can easily be set, thereby can help energy-conservationization.In addition, with lighting quality correspondingly can also reduce the usage quantity of resource, can help consumption reductionization.
Therefore, need be when having high strength at break lightweight and have the refractory castable of low heat conductivity.Yet existing refractory castable is made up of dense microstructure owing to need high strength at break, is full of the big material of quality.
On the other hand, in existing mould material, known have several kinds of mould material that realize lighting; For example; As the mould material of having used aglite, known have: use the adiabatic mould material (with reference to patent documentation 1) of ceramic fiber, used the adiabatic mould material (with reference to patent documentation 2～4) of aglites such as aluminum oxide hollow bead; In addition, used the mould material (with reference to patent documentation 5) of aluminum oxide hollow bead as the inner lining material of molten aluminum casting ladle.
The prior art document
Patent documentation
Patent documentation 1: japanese kokai publication hei 8-245271 communique
Patent documentation 2: japanese kokai publication hei 9-301779 communique
Patent documentation 3: japanese kokai publication hei 11-49577 communique
Patent documentation 4: TOHKEMY 2004-299959 communique
Patent documentation 5: TOHKEMY 2003-112256 communique
Summary of the invention
The problem that invention will solve
Yet, about in the patent documentation 1 record use the adiabatic mould material of ceramic fiber, the loose density of its 1400 ℃ of dry products is below 1.4, folding strength is 5MPa, lower.About the use of record in the patent documentation 2 the adiabatic mould material of aglites such as hollow bead, the loose density of its 1400 ℃ of dry products is below 1.5, folding strength is below the 10MPa, lower.About the use of record in the patent documentation 3 the adiabatic mould material of aglites such as hollow bead, the loose density of its 1500 ℃ of dry products is below 1.0, compressive strength is below the 25MPa, lower.About the use of record in the patent documentation 4 the adiabatic mould material of aglites such as hollow bead, the loose density of its 1000 ℃ of dry products is below 0.6, compressive strength is below the 1MPa, lower.About the use of record in the patent documentation 5 mould material of aluminum oxide hollow bead, the loose density of its 1200 ℃ of dry products is below 1.8, compressive strength is below the 25MPa, lower.
As stated, the strength at break of above-mentioned existing lightening casting material is all low, and performance is insufficient for using as refractory castable.
Therefore, the objective of the invention is to, provide and can be formed on characteristic with existing refractory castable, when being high strength at break the refractory castable of lightweight and low heat conductivity powder composition and use its refractory castable.
The scheme that is used to deal with problems
The inventor etc. further investigate, and the result finds, can address the above problem as refractory aggregate through using specific hollow bead, thereby accomplish the present invention.That is, refractory castable of the present invention is characterised in that with powder composition it contains aluminium oxide-zirconium oxide matter hollow bead as neccessary composition, and aforementioned aluminium oxide-zirconium oxide matter hollow bead contains Al
2O
3Be 67～99 quality %, ZrO
2Be 1～33 quality % and Al
2O
3With ZrO
2Total amount be the above aluminium oxide-zirconium oxide matter hollow beads of 96 quality %.
In addition, refractory castable of the present invention is through adding moisture at the refractory castable of the invention described above in powder composition and mixing construction obtains.
The effect of invention
Refractory castable according to the present invention is used powder composition; Through using the novel aggregate of aluminium oxide-zirconium oxide matter this light-weight of hollow bead, can obtain having the adiabatic mould material of having used existing aglite the refractory castable of not obtainable high strength at break, lightweight and low heat conductivity.
In addition, according to refractory castable of the present invention, the feasible lighting that in the past was difficult to the refractory castable of lighting becomes possibility, can help energy-conservationization, consumption reductionization.
Embodiment
Refractory castable of the present invention is that the refractory castable that can form the refractory castable with high strength at break, lightweight and low heat conductivity is used powder composition with powder composition, and its aggregate that contains regulation is as neccessary composition.In addition, in this manual, be meant: establish whole powder compositions (not containing) when being 100 quality %, the component proportions separately in the middle of the 100 quality % to add the composition that thing is represented for the one-tenth component that contains in the powder composition employed " inclusion ".For example, contain 90 quality % refractory aggregates in inclusion and be meant: whole powder compositions (not containing to add the composition that thing is represented) of establishing the content that comprises this refractory aggregate are 100 quality %, contain 90 quality % refractory aggregates among this 100 quality %.On the other hand, " adding thing " is meant: establish whole powder compositions (not containing) when being 100 quality % to add the composition that thing is represented, the composition that this 100 quality % is not contained be the ratio of benchmark with whole refractory materialss (not containing) to add the composition that thing is represented.For example, contain 0.1 quality % additive and be meant to add thing: establishing the whole powder compositions (not containing to add the composition that thing is represented) that do not contain this additive is 100 quality %, additionally contains 0.1 quality % additive.
Refractory castable of the present invention is made up of refractory aggregate and hydraulicity wedding agent with powder composition, as refractory aggregate, can enumerate out the light-weight refractory aggregate that formed by aluminium oxide-zirconium oxide matter hollow bead as neccessary composition.In addition, in this manual, aggregate is meant that median size surpasses the particle of 20 μ m.
Light-weight refractory aggregate used in the present invention is following aluminium oxide-zirconium oxide matter hollow bead: as its chemical ingredients, with Al
2O
3Composition and ZrO
2Composition is a neccessary composition, this Al
2O
3The content of composition is 67～99 quality %, ZrO
2The content of composition is 1～33 quality %, and their total amount (Al
2O
3+ ZrO
2) be more than the 96 quality %.
Al
2O
3The content of composition is lower than 67 quality %, ZrO
2When the content of composition surpasses 33 quality %, because the zirconium white ratio uprises, therefore can't thoroughly absorb the volume change of following zirconic phase transformation and producing, particle is easy to generate be full of cracks, and granule strength has the anxiety of reduction.In addition, uprise, so the quality change is heavy, in existing problems aspect the lighting of one of purpose owing to compare heavy zirconic ratio with aluminum oxide.Therefore and then zirconium white raw material unit price is higher, has in the manufacturing cost also anxiety of existing problems in price.On the other hand, Al
2O
3The content of composition surpasses 99 quality %, ZrO
2When the content of composition is lower than 1 quality %, can't fully guarantee strength at break.In addition, compare the low zirconium white quantitative change of thermal conductivity with aluminum oxide few, and the reduction effect of heat conduction can reduce.And then, to the zirconium white quantitative change of the excellent corrosion resistance of aluminium, glass, alkali etc. after a little while, can't fully guarantee erosion resistance.And, because the zirconium white quantitative change makes the quality of hollow bead lighten less, thereby the anxiety of hollow bead come-up, generating material separation is arranged in the construction of refractory castable.
For light-weight refractory aggregate used in the present invention, Al
2O
3The content of composition is the above and ZrO of 68 quality %
2The content of composition is 32 quality when following, and is preferred based on same reason.
In addition, if their total amount (Al
2O
3+ ZrO
2) be lower than 96 quality %, then other one-tenth are divided into impurity and exist, and therefore can't obtain the balance of above-mentioned effect, the refractory aggregate that can't obtain having target property of the present invention.In addition, during through electric smelting manufactured lightweight refractory particle,, then also have melting temperature (Tm) excessively to reduce and can't make the anxiety of hollow light-weight refractory particles of aggregates if aforementioned total amount is lower than 96 quality %.Above-mentioned total amount is 98 quality % when above, and is preferred based on same reason.
Usually, ZrO
2Stable at normal temperatures crystalline structure is the monocline crystalline phase, about 1100 ℃, undergo phase transition and show bigger volume change, so it directly is difficult to make sintered compact.Usually, with ZrO
2Composition is to add CaO etc. in the raw material for refractory of staple to make it stablely turn to a cube crystalline substance and use.
For this, as above-mentioned, pass through compounding Al to scale
2O
3Composition and ZrO
2Composition is also processed the corundum mineral and the structure of complicated ground of baddeleyite mineral be combined into, thereby even if contains under the high temperature ZrO that is made up of the monocline crystalline phase of stabilization not
2, also can be made into heat-staple refractory aggregate.Specifically, even if cross over ZrO
2The transition temperature of composition applies thermal cycling also can effectively suppress particle appearance be full of cracks, can be used as raw material for refractory and uses.
In addition, have not breakable full intensity and give the viewpoint of low heat conductivity, erosion resistance, ZrO from particle
2The content of composition is preferably more than the 3 quality %, in addition, even if also can effectively suppress the aspect that particle produces be full of cracks from applying 850 ℃～1250 ℃ thermal history crossing over zirconic transition temperature, is preferably below the 31.5 quality %.Further preferred ZrO
2The content of composition is below the 31 quality %.
When the maximum particle diameter of this light-weight refractory aggregate surpassed 4.0mm, the strength at break of refractory castable had the anxiety of reduction, therefore refractory castable of the present invention with powder composition in, the maximum particle diameter of light-weight refractory aggregate is preferably below the 4.0mm.And then the particle diameter of this light-weight refractory aggregate is 2.5mm when following, and strength at break can increase, so further preferred.
The light-weight refractory aggregate that uses among the present invention can improve the resistivity against fire of the refractory materials of having used it as refractory aggregate, is making that aspect lightweight, good heat insulating ability and the good thermotolerance isostatic, its melting temperature (Tm) (fusing point) is preferably more than 1700 ℃.Melting temperature (Tm) further is preferably more than 1750 ℃, and preferred especially melting temperature (Tm) is more than 1800 ℃.In addition, the thermotolerance of refractory materials also embodies with refractoriness sometimes, above-mentioned melting temperature (Tm) as refractoriness be equivalent to by the SK label represent 39～42.
And then the viewpoint from the quality that improves refractory materials etc. needs this light-weight refractory aggregate to have practical intensity.The light-weight refractory aggregate that uses among the present invention uses Al through combination
2O
3Composition and ZrO
2Composition, its strength ratio is separately with Al
2O
3The refractory aggregate that composition constitutes is high.Therefore, when constituting refractory materials with this light-weight refractory aggregate, shape, the performance of the refractory materials that can suppress to be caused by aggregate fragmentation etc. change, and can be made into stable refractory materials.
For the light-weight refractory aggregate of the present invention of above-mentioned explanation, will be as the Al of its raw material
2O
3And ZrO
2Raw materials mix becomes the compounding ratio of regulation, makes it respectively with gained Al
2O
3Composition and ZrO
2Components in proportions contains Al
2O
3Composition and ZrO
2Composition, thus the starting raw material of light-weight refractory aggregate processed.
As the method for manufacture of light-weight refractory aggregate, use sintering process or the electric smelting-wind method of quenching usually.In the former, as core, raw material is combined in around it spherical particle of organism etc., burn till, thus make organism etc. the core volatilization, make hollow raw material for refractory.In addition, in the latter, as putting down in writing in No. 2009/072627 communique of International Publication, by the raw material that regulation is formed fusion and the air of this fusion raw material inject high pressure waited make it become the method for hollow bead in arc type electric furnace etc.In order to obtain light-weight refractory aggregate of the present invention, can use any one method, from the manufacturing cost aspect, the electric smelting method is favourable.
In addition, sintering process can freely be selected to form Al in the electric smelting method
2O
3Composition and ZrO
2The total amount of composition be preferably 96 quality % above, more preferably 98 quality % above, be preferably more than the 99.3 quality % especially.In the electric smelting method, when the impurity component value uprises, can cause the melt temperature of raw material to reduce usually, the result can't make hollow bead sometimes, maybe can't obtain loose density and do not reduce and realize the refractory aggregate that light-weight is hollow.
In addition, under the situation that impurity component can disappear in utilizing the manufacturing processed of this method of manufacture, even if it is also no problem to contain such composition as raw material.For example, can use the method for manufacture of the following fire resisting material particle that utilizes the electric smelting method, that is, as putting down in writing in No. 2009/072627 communique of International Publication, the refractory materials recycling that uses made Al
2O
3Composition and ZrO
2The content high purityization of composition, thus easy and productivity is made the fire resisting material particle of hyperoxia voltinism well.
As refractory aggregate of the present invention; Except above-mentioned light-weight refractory aggregate; Can also use the common known refractory aggregate that uses as the raw material of refractory materials, for example aluminum oxide, bauxite, mullite, andaluzite, chamotte, silica, silit, zircon, zirconium white, magnesite, spinel etc.
Refractory castable of the present invention uses above-mentioned light-weight refractory aggregate and at least a refractory aggregate that is selected from the existing known refractory aggregate with the powder composition preferably combination.When combination is used like this, use powder composition for replace existing refractory castable with aluminium oxide-zirconium oxide matter hollow bead with the refractory castable that the part of the refractory aggregate of powder composition obtains in form.Through adopting such formation, when keeping the characteristic of existing refractory castable, being high strength at break, also can obtain the characteristic of lightweight and low heat conductivity.
In addition; If make content that refractory castable of the present invention uses the aluminium oxide-zirconium oxide matter hollow bead in the powder composition with inclusion count 5～65 quality %, all the other constitute refractory aggregate for existing known refractory aggregate; Then equalizability is guaranteed loose density and the strength at break of refractory castable of the present invention with the construction body of powder composition more well, so preferred.Refractory castable of the present invention with powder composition in, the content of aluminium oxide-zirconium oxide matter hollow bead is more preferably counted 10～60 quality % with inclusion, the content of aluminium oxide-zirconium oxide matter hollow bead is especially preferably counted 40～55 quality % with inclusion.
Refractory castable of the present invention with powder composition in, can contain the aglite beyond alumina-zirconium white matter hollow bead.Here said aglite can be enumerated out the hollow grain of aluminum oxide, the hollow grain of zirconium white, CA
6Light weight matter aggregate etc.
Then, hydraulicity wedding agent used in the present invention is neccessary composition with the high-alumina cement, contains silica ultrafine powder, ultra-fine alumina powder end, dispersion agent, curing regulator as required.In addition, make it contain ALUMNIUM FLUORIDE, Calcium Fluoride (Fluorspan) etc. and soak into suppressor factor, can also suppress soaking into of molten aluminum.In addition, contain additive, can give its various functions through making it.
At this, the high-alumina cement that uses among the present invention plays a role as the wedding agent of above-mentioned aggregate, and host comprises calcium aluminate.From stable on heating problem, use a kind～5 kinds high-alumina cement based on the JIS standard (R-2511) of nineteen ninety-five.
The silica ultrafine powder so long as so far refractory castable get final product with the employed silica fine powder of powder composition, be the silica powder below the median size 20 μ m, preferred SiO
2Content is the silica microparticle more than 90%, more preferably less than 1 μ m.As silica microparticle, specifically can enumerate out silicon ash (silica fume) etc.
In addition, ultra-fine alumina powder end so long as so far refractory castable get final product with the employed fine powder alumina of powder composition, the force of cohesion of himself is strong, has promotion solidified effect when the used for refractory material powder composition is processed refractory materials.This fine powder alumina is the alumina powder below the median size 20 μ m, preferred pre-burning aluminum oxide.At this moment, from promoting refractory materials solidified viewpoint, fine powder alumina can use median size to be lower than the particle of 10 μ m, preferably be lower than 5 μ m through gathering in it.
Adiabatic mould material of the present invention after adding required moisture, uses mixing machine to carry out the mixing base soil of processing with powder composition, and it is flow among regulation framed, makes it dry and process refractory castable (construction body) then.
Used in the inflow constructional method of refractory castable of the present invention with powder composition; As above-mentioned required amount of moisture; Preferably, making it use powder composition with respect to 100 mass parts refractory castable of the present invention is 3～15 mass parts, and it is added in the above-mentioned powder composition.In other words, preferably add 3～15% moisture to add thing.Amount of moisture is lower than at 3% o'clock to add thing, and the anxiety that can't construct is arranged, and on the other hand, amount of moisture surpasses at 15% o'clock to add thing, aggregate is arranged and add the anxiety that moisture separates.
As the mixing mixer of using of this construction method,, can use general mixer as long as the water of mixed-powder composition and interpolation just is not particularly limited equably.
The mould material that refractory castable of the present invention is lightweight and low heat conductivity as stated, strength at break is big.As the characteristic of refractory castable, particularly, its loose density is preferably more than 1.5, and more preferably 1.5～2.6.In addition, the thermal conductivity of its refractory castable is preferably below 2.8 (W/ (mK)), more preferably below 2.0 (W/ (mK)).Compressive strength is preferably more than the 25MPa, more preferably more than the 50MPa.
Embodiment
Below, be embodiment (example 1～example 3, example 5～example 7) and be that comparative example (example 4, example 8) describes with the example of refractory castable of the present invention with the example of existing refractory castable.In addition, the application's invention is not limited to these embodiment.
The preparation of light-weight refractory aggregate
With stove internal diameter diameter 800mm, height 600mm, furnace volume 0.6m
3The arc type melting furnace use as test furnace, use 500kVA's as X-former.In addition, the inner lining refractory of melting furnace uses Al
2O
3Content is the Electrocast refractory more than 97%.
As Al
2O
3Raw material uses the Bayer alumina (Bayer alumina) of purity more than 99.3%, as ZrO
2Raw material uses the electric-melting zirconia glass cullet of purity more than 99.5%, with the composition of these raw materials mix one-tenth regulations, so that final Al
2O
3Composition and ZrO
2The mode that becomes to be divided into the ratio (quality %) of table 1 is processed fused raw material.
With the fusion in electric furnace of these fused raw materials.Melting condition is: voltage 100～300V, power 100～400kW, it is 20～30 minutes that whole making times of mixing raw material are used in fusion.Fusing necessary electric power is about 2000kWh per ton.
Then, in the pressurized air of pressure 4MPa, add the 0.4L/ water of second, with pressurized air with water from the below of melts forward direction melt the melts that and spray, with smelt particlesization.Particle reclaims through fire retarded metal system collection container, as fire resisting material particle.The velocity of compressed air of this moment is 100m/ second.
The particulate granularity that obtains through this scorification be the scope of 0.1～4mm more than 95%, be the scope of 0.05～15mm more than 98%.This moment, the peak value of granularity was 1.2mm.
The chemical ingredients of the alumina zirconia hollow bead 1 that obtains here (in the table, note by abridging be AZ hollow bead 1) is: Al
2O
3Amount: 68.2 quality %, ZrO
2The amount: 31.4 quality %, other: 0.4 quality %; The chemical ingredients of alumina zirconia hollow bead 2 (in the table, note by abridging be AZ hollow bead 2) is: Al
2O
3Amount: 93.1 quality %, ZrO
2The amount: 6.4 quality %, other: 0.5 quality %.
The chemical ingredients of the AZ hollow bead that uses in the present embodiment is shown in table 1 through fluorescent X-ray diffraction instrument (Rigaku corporate system) result who analyzes and the result who studies other characteristics.
Table 1
Loose density
Loose density through the hollow bead that in the known container of volume, raps three times 0.1～1.0mm fill, quality after measuring strickling calculates.Making the consistent reason of particle grain size is in order to reduce changing factor.
Thermal conductivity
To the sample mensuration normal temperature (20 ℃) of hollow bead, 500 ℃, 1000 ℃ thermal conductivity (W/ (mK)).The employed particle of Determination of Thermal Conductivity use will have 0.1mm～1.0mm size particles through sieve classification particle.Determination of Thermal Conductivity is used elevated temperature heat conductance apparatus for automatically measuring (Speinlab corporate system, trade(brand)name: HWM-15).
Refractory castable is with the manufacturing of powder composition and refractory castable
With the above-mentioned AZ hollow bead 1 that obtains through screening so that its granularity is 2.5mm～0.1mm, as employed AZ hollow bead 1.
The AZ hollow bead compounding amount of table 2 and table 3 is 0% a example 4 and example 8 use powder composition for existing refractory castable, and example 4 and routine 8 is commercially available low cement deposit material product.Example 1 in addition～example 3 for example 4 refractory castable is used powder composition, example 5～example 7 and uses powder composition to use sieve aperture to be divided into as the screen cloth of 0.1mm that sieve is gone up respectively for refractory castable with example 8 and sieve down, with the part of the refractory aggregate on the AZ hollow bead 1 displacement sieve, with sieve under remix process the example of powder composition.That is, for using powder composition with the refractory castable that the refractory aggregate on the AZ hollow bead displacement sieve obtains with specified amount.
Add the regulation amount of moisture shown in table 2 and the table 3 respectively, with commercially available mixing machine mixing about 3 minutes, process base soil, make in its mould that flow into regulation, process sample (size: 160mm * 40mm * 40mm) according to JISR2553.For each sample of gained, loose density is measured respectively according to JIS R2616 according to JIS R2553, thermal conductivity through Archimedes's method, anti-folding compressive strength.At this, the compounding amount of AZ hollow bead is the quality % in inclusion.
The gained result is shown in table 2 and table 3.In addition, the loose density of table 2, folding strength, compressive strength illustrate the value about the sample after under 1400 ℃ dry 3 hours respectively.In addition, the loose density of table 3, folding strength, compressive strength illustrate the value about the sample after under 1200 ℃ dry 3 hours respectively.Thermal conductivity has all illustrated measuring the values that obtain at 400 ℃ of samples of down dry 5 hours down at 1000 ℃.
Table 2
Table 3
As implied above, refractory castable of the present invention through specific aluminium oxide-zirconium oxide hollow bead being used for the part of existing refractory aggregate, can make the loose density of gained refractory castable little with powder composition, thermal conductivity is low.So, can guarantee that strength at break is as the desired intensity of refractory castable.
Utilizability on the industry
Refractory castable of the present invention is high strength at break with the characteristic that powder composition has existing refractory castable; Owing to be aggregate and lightweight with the hollow bead; And, can be used as the refractory materials that under hot environment, uses and be widely used because thermal conductivity is low and heat insulating ability is high.
Claims (5)
1. a refractory castable is used powder composition, it is characterized in that, it contains aluminium oxide-zirconium oxide matter hollow bead as neccessary composition,
Said aluminium oxide-zirconium oxide matter hollow bead contains Al
2O
3Be 67～99 quality %, ZrO
2Be 1～33 quality % and Al
2O
3With ZrO
2Total amount be the above aluminium oxide-zirconium oxide matter hollow beads of 96 quality %.
2. refractory castable according to claim 1 is used powder composition, and it is to contain the said aluminium oxide-zirconium oxide matter hollow bead of 5～65 quality % with inclusion.
3. a refractory castable is characterized in that, it is through adding moisture at the refractory castable of claim 1 or 2 in powder composition and mixing construction obtains.
4. refractory castable according to claim 3, its loose density are more than 1.5.
5. according to claim 3 or 4 described refractory castablies, its compressive strength is more than the 25MPa.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010194299 | 2010-08-31 | ||
| JP2010-194299 | 2010-08-31 | ||
| JP2011-184316 | 2011-08-26 | ||
| JP2011184316A JP2012072051A (en) | 2010-08-31 | 2011-08-26 | Powder composition for fireproof castable, and fireproof castable using the same |
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|---|---|
| CN102432307A true CN102432307A (en) | 2012-05-02 |
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| CN2011102587789A Pending CN102432307A (en) | 2010-08-31 | 2011-08-31 | Powder composition for refractory castable and refractory castable equipped therewith |
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| CN105473532A (en) * | 2013-05-20 | 2016-04-06 | 康宁股份有限公司 | Porous ceramic article and method of manufacturing the same |
| CN106380211A (en) * | 2016-08-31 | 2017-02-08 | 长兴盛华耐火材料有限公司 | Liquid aluminum penetration resistant castable with added SiAlON-AlN-TiN and preparation method thereof |
| CN106396699A (en) * | 2016-08-31 | 2017-02-15 | 长兴盛华耐火材料有限公司 | ZrN-SiAlON-added aluminum liquid penetration-resistant casting material and preparation method thereof |
| CN109467447A (en) * | 2017-09-08 | 2019-03-15 | Ａｇｃ株式会社 | Higly oxidized zirconia electroforming refractory material and its manufacturing method |
| CN115448703A (en) * | 2022-09-06 | 2022-12-09 | 宜兴市隆昌耐火材料有限公司 | Preparation method of high-temperature wear-resistant castable containing zirconia corundum |
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- 2011-08-31 CN CN2011102587789A patent/CN102432307A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105473532A (en) * | 2013-05-20 | 2016-04-06 | 康宁股份有限公司 | Porous ceramic article and method of manufacturing the same |
| CN106380211A (en) * | 2016-08-31 | 2017-02-08 | 长兴盛华耐火材料有限公司 | Liquid aluminum penetration resistant castable with added SiAlON-AlN-TiN and preparation method thereof |
| CN106396699A (en) * | 2016-08-31 | 2017-02-15 | 长兴盛华耐火材料有限公司 | ZrN-SiAlON-added aluminum liquid penetration-resistant casting material and preparation method thereof |
| CN106380211B (en) * | 2016-08-31 | 2019-01-22 | 长兴盛华耐火材料有限公司 | A kind of aluminum-resistant liquid penetration pouring material and preparation method thereof adding SiAlON-AlN-TiN |
| CN106396699B (en) * | 2016-08-31 | 2019-01-25 | 长兴盛华耐火材料有限公司 | A kind of aluminum-resistant liquid penetration pouring material and preparation method thereof adding ZrN-SiAlON |
| CN109467447A (en) * | 2017-09-08 | 2019-03-15 | Ａｇｃ株式会社 | Higly oxidized zirconia electroforming refractory material and its manufacturing method |
| CN115448703A (en) * | 2022-09-06 | 2022-12-09 | 宜兴市隆昌耐火材料有限公司 | Preparation method of high-temperature wear-resistant castable containing zirconia corundum |
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Application publication date: 20120502 |