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  • Mechanochemically synthesized high alumina cement

    2015-3-1 · X-ray diffraction of sintered samples of high alumina cement based castable compositions was done to estimate the phases present after sintering at 1550 °C temperature. Extent of reaction was estimated from the amount of the different phases present. Table 4 shows the evaluation percentage of relative crystallinity.

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  • China High Alumina Castable Refractory

    2020-6-13 · High Alumina Castable Refractory . Discount wholesale Good Quality Silica Sand - ... 2017 wholesale price Long Diameter Roller - Fu... factory low price Silica Fused Free Red Tube -... Newly Arrival Glass Grade Silica Sand - Fused ... Special Price for Single Groove Rollers - Sili... Popular Design for Glass Tempering Furnace Cera...

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  • High-alumina phosphate-bonded refractory castables

    General information of the designed high-alumina castable compositions. Raw materials (wt%) TA TAþBTAþS Tabular alumina (dr6 μm) 90 90 90 Fine aluminas (CL370C and CT3000SG) 10 9 8

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  • High-alumina phosphate-bonded refractory castables:

    2015-8-1 · Aiming to better understand the mechanical behavior of the designed high-alumina phosphate-bonded refractories, the compositions containing hydratable alumina (35 wt% of concentration H 3 PO 4 solution, named 35HP-HA) and Al(OH) 3 (48 wt% of concentration H 3 PO 4 solution, called 48HP-HY) were also evaluated and the obtained results are shown as follows.

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  • Thermomechanical Behavior of High‐Alumina

    2004-12-20 · The thermomechanical behavior of a high-alumina refractory that contains 10 wt% of synthetic spinel has been studied. Results have been correlated with the microstructural and mineralogical evolutions using X-ray diffraction and scanning electron …

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  • Self-flowing high-alumina phosphate-bonded

    2017-6-1 · High-alumina castables containing phosphoric acid (binding system 1)+Budit 3H or 6H (named as 3H-100%H 3 PO 4 and 6H-100%H 3 PO 4), as well as the compositions prepared with MAP+H 3 PO 4 solutions (binding system 2)+Budit 3H or 6H (3H-25MAP/75H 3 PO 4 and 6H-25MAP/75H 3 PO 4) were evaluated and compared with a benchmark commercial high-alumina vibratable refractory …

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  • Alumina-Carbon Refractory Castables Containing

    2021-7-20 · The physical properties namely bulk density, apparent porosity, cold crushing strength of carbon-containing high alumina based refractory castable containing both natural and modified graphites (94 % fixed carbon) have been evaluated within the temperature region 110–1500 °C.

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  • Erosion resistance of nanobonded high-alumina

    In this work, the cold erosion resistance of high-alumina refractory castables containing colloidal silica and a blend of colloidal silica and hydratable alumina as bonding agents were comparated ...

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  • THE EFFECT OF ADDITIVES ON THE PROPERTIES OF HIGH

    2016-4-1 · mixing of low cement castable are shown in Table 1, Table 1. Raw materials and composition of the high alumina low-cement castable. Raw materials Source (Type) (wt.%) Tabular Alumina 2-5 mm Alcoa Chemicals, T-60 78 1-2 mm 0.5-1 mm 0-0.5 mm ≤ 45 μm Microsilica d 50 = 0.25 μm Elkem, 971U 5 Reactive Alumina d 50 = 1.90 μm Alcoa Chemicals, CTC-20 12

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  • Effect of Deflocculants on High Alumina Low Cement

    2016-3-21 · Insulating castable: B.D. has a maximum value of 1.85 g/cc 2) Low cement castable (LCC): calcium oxide content in between the range of 1% to 2.5% on calcined basis. 3) Ultra low cement (ULCC): calcium oxide content in between the range of 0.2% to 1% on calcined basis.

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  • (PDF) High-alumina chemically-bonded refractory

    High-alumina chemically-bonded refractory castables containing liquid or powdered binders ... Effect of steel fiber addition in castable is shown. ... thermogravimetric measurements, X-ray ...

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  • China High Alumina Castable Refractory

    2020-6-13 · High Alumina Castable Refractory . Discount wholesale Good Quality Silica Sand - ... 2017 wholesale price Long Diameter Roller - Fu... factory low price Silica Fused Free Red Tube -... Newly Arrival Glass Grade Silica Sand - Fused ... Special Price for Single Groove Rollers - Sili... Popular Design for Glass Tempering Furnace Cera...

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  • Effect of Deflocculants on High Alumina Low Cement

    2016-3-21 · Effect of Deflocculants on High Alumina Low Cement Castables 8 | P a g e LIST OF ABBREVIATIONS Sl. No. Abbreviation Full form 1. HAC High Alumina Cement 2. PSD Particle Size Distribution 3. XRD X-Ray Diffraction 4. WTA White Tabular Alumina 5. WFA White Fused Alumina 6. CPFT Cumulative percent finer than 7. BD Bulk Density 8.

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  • Thermomechanical Behavior of High‐Alumina

    2004-12-20 · The thermomechanical behavior of a high-alumina refractory that contains 10 wt% of synthetic spinel has been studied. Results have been correlated with the microstructural and mineralogical evolutions using X-ray diffraction and scanning electron …

    Get Price
  • PREMIUM ALUMINA FOR REFRACTORY APPLICATIONS

    2020-10-9 · High-alumina aggregates ... (X-ray diffraction peaks) Spinel main phase main phase main phase Corundum (AI 2O ... AR 78 and AR 90 are mainly used in high- alumina refractory bricks, monolithics and pre-fired shapes in the iron and steel industry. Latest research shows the superiority of these spinel- containing materials when in contact with mag-

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  • High alumina castables reinforced with SiC | Request

    To improve the sintering, mechanical and refractory properties of high alumina castables, different contents of SiC (up to 8 wt.-%) were added at the expense of high alumina cement.

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  • Effect of Reactive Alumina on the Physico-Mechanical ...

    2018-6-8 · The mineralogical analysis was done by X-ray diffractometry, whereas morphological analysis was carried out by scanning electron microscopy. The results showed that the castable with high percentage of reactive alumina hydrated early as well as developed early sintered strength due to its faster rate of hydration and higher reactivity at lower ...

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  • Carbonation of Alumina Cement-bonded Conventional ...

    Keywords: alumina cement-bonded castable, carbonation, X-ray analysis, microsilica. INTRODUCTION∗ Domestic boilers, furnaces and fireplaces that are heated by biofuel (fire-wood, wood waste, peat) are widely used in Lithuania. The observations show, that the lining of such furnaces, which is made using conventional alumina

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  • THE EFFECT OF ADDITIVES ON THE PROPERTIES OF HIGH

    2016-4-1 · The effect of additives on the properties of high alumina low-cement self-flowing castables Ceramics – Silikáty 53 (1) 42-47 (2009) 45 The refractory castable with optimized amount of PA (0.06 wt.%) acquires self-flowing properties by addition of 5 weight percent of water. Whereas, the same castable

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  • Castable refractory systems - Alcan International Limited

    1997-11-28 · In embodiments of the present invention (see below) the activated alumina is predominantly chi alumina as determined by X-ray diffraction and 27 Al NMR. In use, castable blends ideally provide good castability and green and dried strength, together with high strength of the fired product at low and elevated (working) temperatures.

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  • PREMIUM ALUMINA FOR REFRACTORY APPLICATIONS

    2020-10-9 · High-alumina aggregates ... (X-ray diffraction peaks) Spinel main phase main phase main phase Corundum (AI 2O ... AR 78 and AR 90 are mainly used in high- alumina refractory bricks, monolithics and pre-fired shapes in the iron and steel industry. Latest research shows the superiority of these spinel- containing materials when in contact with mag-

    Get Price
  • Effect of Reactive Alumina on the Physico-Mechanical ...

    2018-6-8 · The mineralogical analysis was done by X-ray diffractometry, whereas morphological analysis was carried out by scanning electron microscopy. The results showed that the castable with high percentage of reactive alumina hydrated early as well as developed early sintered strength due to its faster rate of hydration and higher reactivity at lower ...

    Get Price
  • Role of Preformed Magnesia-Alumina Spinel Additives

    2014-2-10 · Two kinds of commercially available preformed magnesia alumina spinels, characterized through chemical analysis and X-ray diffraction methods, were utilized in different concentrations in a high alumina based refractory castable composition.

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  • Castable Refractory | Products & Suppliers |

    Description: Sauereisen Electrical Refractory Cement No. 75 is a castable, hydraulically-setting cement used as a bonding mortar or refractory coating for high-temperature assembling, encapsulating and potting applications. No. 75 may also be cast or gunite applied to protect concrete.

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  • Refractory Castables, Color : Grey, INR 550INR 2.50 k ...

    Material Castable Refractory; we are ranked amongst the renowned organizations that are engaged in providing the best quality range of high alumina fire castable. our special range of monolithic castable refractory products are manufactured from a homogeneous mix of different fractions of special aluminous materials, fused alumina, and calcined ...

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  • Manufacturer of Refractory Minerals & Refractory

    Incepted in the year 1993, we “Monolithic Refractories Pvt. Ltd.” are affianced in manufacturing, exporting and supplying qualitative array of Alumina Brick, Refractory Castable, Refractory minerals, High Alumina Cement, Precast Mould, Refractory Mortar, etc. These products are widely used during the construction of the buildings. Under the guidance of “Mr. Jawal Mahendru” (MD), we ...

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  • Castable refractory systems - Alcan International Limited

    1997-11-28 · In embodiments of the present invention (see below) the activated alumina is predominantly chi alumina as determined by X-ray diffraction and 27 Al NMR. In use, castable blends ideally provide good castability and green and dried strength, together with high strength of the fired product at low and elevated (working) temperatures.

    Get Price
  • The Interfacial Behavior of Alumina-Magnesia

    2013-12-24 · High Alumina Cement . 53 : 0.90 . Calcined Bauxite : 74 . 3.15 : The X-ray diffraction patterns reported a higher amount of cordierite phase for mix I than for mix II, as it is observed in Table 4. The mix I had a big amount of fine particles which contributed in …

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  • Development And Characterization of Ultra Low Cement ...

    2020-1-11 · (SEM/EDS), X-ray Di raction (XRD), and thermodynamic simulations. The results confirmed that the mineral phases, microstructure, and liquid formation at a high temperature of the refractory materials had a strong impact on the corrosion resistance. The slag resistance was significantly improved when the cement was replaced by the cement-free ...

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  • Extended studies on surface‐treated graphite vis‐à‐vis

    2017-12-27 · Extended studies on surface-treated graphite vis-à-vis its application in high alumina refractory castable. Paromita Das, Department of Chemical Technology, Ceramic Engg. Division, University of Calcutta, Kolkata, India ... C-H-N analysis, differential scanning calorimetry (DSC), transmission electron microscopy (TEM), x-ray diffraction (XRD ...

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  • STUDY AND PREPARATION OF HIGH ALUMINA

    2016-3-2 · 2.2 Refractory calcium aluminate cement high alumina cement 2.3 Insulating refractory 18-24 19-20 20-24 24 3 3. Experimental procedure 3.1 Raw materials used 3.2 Procedure 25-32 26-28 28-32 4 4. Result and discussion 4.1 Bulk density 4.2 Volume shrinkage 4.3 CCS measurement 4.4 X- ray analysis 33-40 34-35 35 36 37-40 5 5. Conclusion 41-42 6 6 ...

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  • Low Cement High Alumina Castables: Effect of

    2013-12-13 · Low Cement High Alumina Castables: Effect of Distribution Coefficients 9 | P a g e LIST OF ABBREVIATIONS Sl. No. Abbreviation Full form 1. HAC High Alumina Cement 2. PSD Particle Size Distribution 3. XRD X-Ray Diffraction 4. WTA White Tabular Alumina 5. WFA White Fused Alumina 6. CPFT Cumulative percent finer than 7. BD Bulk Density 8.

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  • Role of Preformed Magnesia-Alumina Spinel Additives

    2014-2-10 · Two kinds of commercially available preformed magnesia alumina spinels, characterized through chemical analysis and X-ray diffraction methods, were utilized in different concentrations in a high alumina based refractory castable composition.

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  • Andalusite-based raw materials for refractory castable ...

    2018-5-17 · In Fig 7, please note the extremely high RuL value for the andalusite-based LCC (T0.5% >1650°C), when compared to the other materials tested. In comparison, the sintered mullite-based castable exhibits lower RuL, even though overall alumina content of the two mixes is quite similar. In

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  • How to calculate refractory castable material?

    2017-11-18 · How much ton one cube refractory castable material? General specific gravity is 2.6-2.8. That is 1 cubic meters equal to 2.6-2.8 tons. The refractory material is good or not.It mainly depends on the composition, content, and fire temperature etc.Generally supplier may show above standard .Material quality is one of the elements .

    Get Price
  • Alumina & Sillimanite Tubes - Ceramic Tubes

    We are manufacturer and exporter of Alumina and Sillimanite Tubes. Our products are Silicon Carbide Plates and Tubes, Ceramic Tubes and High Alumina Tubes. Ceramic Tubes. Rs 120 Unit. Induction Furnace Tubes. Rs 1,500 Number. Ceramic Heater Support Threaded Tube. Rs 500 Unit.

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  • Testing > Refractory

    Standard Test Method for Workability Index of Fireclay and High-Alumina Refractory Plastics. ASTM C182. Standard Test Method for Thermal Conductivity of Insulating Firebrick. ... Standard Test Method for Determining the Consistency of Refractory Castable Using the Ball-In-Hand Test. ... X-ray …

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  • Improvement in Slag Resistance of No-Cement Refractory ...

    2020-1-11 · (SEM/EDS), X-ray Di raction (XRD), and thermodynamic simulations. The results confirmed that the mineral phases, microstructure, and liquid formation at a high temperature of the refractory materials had a strong impact on the corrosion resistance. The slag resistance was significantly improved when the cement was replaced by the cement-free ...

    Get Price
  • Low Cement High Alumina Castables: Effect of

    2013-12-13 · Low Cement High Alumina Castables: Effect of Distribution Coefficients 9 | P a g e LIST OF ABBREVIATIONS Sl. No. Abbreviation Full form 1. HAC High Alumina Cement 2. PSD Particle Size Distribution 3. XRD X-Ray Diffraction 4. WTA White Tabular Alumina 5. WFA White Fused Alumina 6. CPFT Cumulative percent finer than 7. BD Bulk Density 8.

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  • STUDY AND PREPARATION OF HIGH ALUMINA

    2016-3-2 · 2.2 Refractory calcium aluminate cement high alumina cement 2.3 Insulating refractory 18-24 19-20 20-24 24 3 3. Experimental procedure 3.1 Raw materials used 3.2 Procedure 25-32 26-28 28-32 4 4. Result and discussion 4.1 Bulk density 4.2 Volume shrinkage 4.3 CCS measurement 4.4 X- ray analysis 33-40 34-35 35 36 37-40 5 5. Conclusion 41-42 6 6 ...

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  • Andalusite-based raw materials for refractory castable ...

    2018-5-17 · In Fig 7, please note the extremely high RuL value for the andalusite-based LCC (T0.5% >1650°C), when compared to the other materials tested. In comparison, the sintered mullite-based castable exhibits lower RuL, even though overall alumina content of the two mixes is quite similar. In

    Get Price
  • Refractory Castables, Color : Grey, INR 550INR 2.50 k ...

    Material Castable Refractory; we are ranked amongst the renowned organizations that are engaged in providing the best quality range of high alumina fire castable. our special range of monolithic castable refractory products are manufactured from a homogeneous mix of different fractions of special aluminous materials, fused alumina, and calcined ...

    Get Price
  • Testing > Refractory

    Standard Test Method for Workability Index of Fireclay and High-Alumina Refractory Plastics. ASTM C182. Standard Test Method for Thermal Conductivity of Insulating Firebrick. ... Standard Test Method for Determining the Consistency of Refractory Castable Using the Ball-In-Hand Test. ... X-ray …

    Get Price
  • Role of Preformed Magnesia-Alumina Spinel Additives

    2014-2-10 · Two kinds of commercially available preformed magnesia alumina spinels, characterized through chemical analysis and X-ray diffraction methods, were utilized in different concentrations in a high alumina based refractory castable composition.

    Get Price
  • How to calculate refractory castable material?

    2017-11-18 · How much ton one cube refractory castable material? General specific gravity is 2.6-2.8. That is 1 cubic meters equal to 2.6-2.8 tons. The refractory material is good or not.It mainly depends on the composition, content, and fire temperature etc.Generally supplier may show above standard .Material quality is one of the elements .

    Get Price
  • Corrosion of high alumina castables by CaO-Al 2 O 3

    The results of the static crucible tests of refractory alumina concretes with high content of fused corundum and MA-spinel are presented in the work. Two types of refractory materials: A-standard low cement castable (LCC) and B-ultra-low cement castable (ULCC) were tested. The corrosion tests were conducted with the real calcium-alumina slag, which is created in steel production.

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  • Effect of Recycled Bauxite Grog Addition on Andalusite ...

    2021-3-26 · Figure 2.14: PSD for a high-alumina vibratable castable based on Adreasen Model 40 Figure 2.15: Concept of addition of recycled material (Hanagiri et al. 2008) 41 Figure 2.16: Ellingham diagram for refractory oxides (Gibbs free energy vs. temperature) (Hloben 2000) 42

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