HIGH-CARBON-CONTENTResearchGate
High-Carbon-Content Refractory Castables Ultra-low-cement (ULC) Al 2O 3–SiC–SiO 2–C castables typically applied in blast furnace runners2 3 were pre- pared to test the chosen surfactants
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Next Generation Carbon-Containing Refractory Composites
Carbon-containing refractory bricks are used extensively in the steel industry worldwide. Since the first generation became commercially available in the 1970 s their processing microstructures and properties have been improved dramatically and the service lives of industrial furnaces have thus been extended substantially. In addition to the work on carboncontaining refractory bricks
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HARBISON-WALKER Handbook of Refractory Practice 2005
ing refractory for rotary cement kilns. • In the 1950 s Harbison-Walker built a high-quality magnesite facility at Ludington Michigan. This keyed the development of several industry standard products including direct-bonded magnesite-chrome brick pitch-bonded and pitch-impregnated magnesite products and magnesite-carbon refractories.
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Monolithic Refractory
PLIFLOW is a free-flow castable refractory that generates flowability with low water content. Being among the first in the industry to devel-op this product we have realized an effective installation of high-strength furnace walls. Both developments are highly acclaimed as innovative products and installation methods pioneered by Plibrico Japan.
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Proceedings of the Unified International Technical
DANA G. GOSKI PHD is the Director of Research at Allied Mineral Products in Columbus Ohio. Dr. Goski earned her PhD in Engineering from Dalhousie University Canada. She is a member of The American Ceramic Society s (ACerS) Refractories Division a co-inventor on a number of international patents and an ardent supporter of science and engineering educational outreach activities.
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PDF Preparation and Characterisation of Novel Carbon
To overcome the difficulty of incorporation of hydrophobic carbon materials into refractory castables TiC and SiC coatings with much better water-wettability were prepared on carbon particles from metallic powders (Ti or Si) by using a novel low temperature molten salt synthesis technique. The preparation conditions were optimized by varying processing parameters including synthesis
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USARefractory castableGoogle Patents
USA USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords percent silica cement heating weight Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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USARefractory castableGoogle Patents
USA USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords percent silica cement heating weight Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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(PDF) Zero-cement refractory castablesResearchGate
Refractory castables in the Al2O3-SiC-SiO2-C system have been extensively used as linings for blast furnace runners due mainly to their improved resistance to thermal shock damage and to slag and
Chat OnlineUSAAlumina-silicon carbide-carbon refractory
A refractory castable comprised of about 45 to about 75 by weight high alumina grain about 2 to about 35 by weight silicon carbide about 1 to about 8 by weight carbon about 1 to about 8 by weight calcium aluminate cement and about 1 to about 10 by weight fine magnesium aluminate spinel the spinel having a grain size of less than about 150 μm (100 Tyler mesh) and being
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High Performance Castable Refractories for Cupola Applications
Key physical properties of refractory materials used in high-temperature corrosive applications include density porosity and strength. More appropriately the strength at temperature is one of the key indicators of performance in service. The data in Table 2 below shows a comparison of various castables with newly developed sol bonded products.
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(PDF) CONTROL OF FORMULATION AND OPTIMISATION OF SELF
The control of the capacity of castables to flow freely with time after mixing with water is of utmost importance for high quality placing.Following the definition of ASTM C71 -free flow is the capacity to flow readily under its own weight without segregation or splitting.
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Catalytic preparation of graphitic carbon spheres for
Aug 01 2018 · 1. Introduction. Thanks to their high thermal conductivity low thermal expansion coefficient and non-wettability to slag carbon containing refractory bricks show much better thermal shock resistance and corrosion resistance than their carbon-free oxide-based counterparts and thus have been widely used to line many important steel-making vessels such as basic oxygen furnace
Chat OnlineMolten salt synthesis of in-situ TiC coating on graphite
Mar 15 2021 · 1. Introduction. Graphite is used in various industries such as refractory because of its unique properties. Graphite flake is a material that maintains high thermal conductivity non-wettability to metal slags and low thermal expansion coefficient so it can significantly elevate the thermal shock and corrosion resistance of carbon-containing refractories.
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11.5 Refractory Manufacturing
11.5 Refractory Manufacturing 11.5.1 Process Description1-2 Refractories are materials that provide linings for high-temperature furnaces and other processing units. Refractories must be able to withstand physical wear high temperatures (above 538°C 1000°F ) and corrosion by chemical agents. There are two general classifications of
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Investigations on the properties of Al2O3–MgO refractory
Aug 15 2018 · In situ carbon containing calcium aluminate cement (CCAC) was ground and used as binders for Al 2 O 3 –MgO refractory castables and its carbon content determined by an infrared carbon–sulfur analyzer (HCS-140) was 1.45 . For comparison Secar71 (supplied by Kerneos China) S71CB (prepared by mechanical mixing with carbon black and Secar71) composite powders with a carbon content
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Dissolution behavior of a novel Al2O3-SiC-SiO2-C composite
Jun 15 2017 · The samples of refractories and all raw materials were provided by Henan Winna Industrial Group Co. Ltd. The chemical compositions of the Al 2 O 3-SiC-SiO 2-C composite and corundum-based refractory are presented in Table 1.The Al 2 O 3-SiC-SiO 2-C composite was made commercially available only recently it is a novel refractory material that has been successfully used
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Microstructural and mechanical investigation of high
formed for high alumina castable without nano-titania (i.e. pure ca-stable) and refractory castable containing 0.4wt nano-TiO 2 (i.e. 0.4TiO 2 castable). 2. Experimental 2.1. Raw materials Source of supply purity density and content of raw materials used for the preparation of the refractory castables are listed in Table 1.
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(PDF) Corrosion resistance of metal powders in high-carbon
The present research aimed to evaluate the efficiency of SiO2 or TiO2 based coatings on inhibiting the aluminum-water reaction when added to high-carbon-containing refractory castables.
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High Performance Castable Refractories for Cupola Applications
Key physical properties of refractory materials used in high-temperature corrosive applications include density porosity and strength. More appropriately the strength at temperature is one of the key indicators of performance in service. The data in Table 2 below shows a comparison of various castables with newly developed sol bonded products.
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High Performance Castable Refractories for Cupola Applications
Key physical properties of refractory materials used in high-temperature corrosive applications include density porosity and strength. More appropriately the strength at temperature is one of the key indicators of performance in service. The data in Table 2 below shows a comparison of various castables with newly developed sol bonded products.
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Catalytic preparation of graphitic carbon spheres for
Aug 01 2018 · 1. Introduction. Thanks to their high thermal conductivity low thermal expansion coefficient and non-wettability to slag carbon containing refractory bricks show much better thermal shock resistance and corrosion resistance than their carbon-free oxide-based counterparts and thus have been widely used to line many important steel-making vessels such as basic oxygen furnace
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Improved sol gel spinel (MgAl 2 O 4 ) coatings on graphite
An improved sol gel coating of magnesium aluminate spinel (MgAl2O4) over flaky graphite was prepared by aluminium-sec-butoxide and magnesium nitrate. The mechanism of evolution of an extended thin film of spinel was investigated by Fourier transform infrared spectroscopy differential thermal analysis scanning electron microscopy and energy dispersive spectral analysis.
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(PDF) High-Carbon-Content Refractory Castables
Download full-text PDF Read produce high-carbon-content refractory castables (up to The use of appropriate surfactants is an effective approach to obtain high-carbon-content castables with
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Preparation and Characterisation of Novel Carbon Materials
Abstract. To overcome the difficulty of incorporation of hydrophobic carbon materials into refractory castables TiC and SiC coatings with much better water-wettability were prepared on carbon particles from metallic powders (Ti or Si) by using a novel low temperature molten salt synthesis technique.
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USAAlumina-silicon carbide-carbon refractory
A refractory castable comprised of about 45 to about 75 by weight high alumina grain about 2 to about 35 by weight silicon carbide about 1 to about 8 by weight carbon about 1 to about 8 by weight calcium aluminate cement and about 1 to about 10 by weight fine magnesium aluminate spinel the spinel having a grain size of less than about 150 μm (100 Tyler mesh) and being
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(PDF) Hydration of aluminum powder in high-carbon
The present research aimed to evaluate the efficiency of SiO2 or TiO2 based coatings on inhibiting the aluminum-water reaction when added to high-carbon-containing refractory castables.
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Investigations on the properties of Al2O3–MgO refractory
Aug 15 2018 · In this paper the properties including strengths oxidation resistance as well as corrosion resistance of Al 2 O 3 –MgO refractory castables bonded with Secar71 carbon back/S
Chat OnlineHigh Performance Castable Refractories for Cupola Applications
Key physical properties of refractory materials used in high-temperature corrosive applications include density porosity and strength. More appropriately the strength at temperature is one of the key indicators of performance in service. The data in Table 2 below shows a comparison of various castables with newly developed sol bonded products.
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(PDF) Development of carbon containing castables for steel
Composition of Al 2 O 3 -MgO-C castablesIn commercial Al 2 O 3 -MgO castables CA cement had been used as binder resulting in high hot strength by the formation of interlocking CA6 phase derived from the cement where as for good slag corrosion resistance 4 the cement addition was kept below 8 .
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