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refractory materials refractory materials using method

  • US20040106509A1 - Refractory raw materials, method

    Refractory raw materials, method for production thereof and refractory using the material Download PDF Info Publication number US20040106509A1. US20040106509A1 US10/469,532 US46953203A US2004106509A1 US 20040106509 A1 US20040106509 A1 US 20040106509A1 US 46953203 A US46953203 A US 46953203A US 2004106509 A1 US2004106509 A1 US 2004106509A1

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  • Refractory raw materials, method for production

    Refractory raw materials, method for production thereof and refractory using the material . United States Patent 7060642 . Abstract: Refractories obtained by molding a refractory raw material composition containing a refractory raw material including graphite grains having an average grain size of 500 nm or less or a refractory raw material ...

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  • What are the repair methods for refractory materials?

    2018-7-4 · There are four ways to repair refractory materials. 1.Pouring repair method is to pour the unshaped refractory into the parts to be repaired through pouring and integrate with the original lining to resist the erosion of slag. 2.The hot state spraying repair method is to spray the unshaped refractory material to the site which needs repair ...

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  • Machine Pressing Molding Method of Refractory

    2016-8-3 · Machine Pressing Molding Method of Refractory Materials. Currently, the most commonly used molding method is the machine pressing molding, which presses the raw materials into green body with the brick pressing machine and steel mold. Since the semi-dry raw materials contain about 5% moisture, it is also called semi-dry molding method.

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  • Analysis of Refractory Materials for Metallurgy by the ...

    INORGANIC MATERIALS Vol. 47 No. 14 2011 ANALYSIS OF REFRACTORY MATERIALS FOR METALLURGY 1545 decomposition by means of potassium pyrosulfate were studied. The selection of the composition and ...

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  • Discrete element modeling— A promising method for ...

    2020-3-2 · modeling refractory materials—if challenges to applying DEM for continuous problems are overcome. R efractory materials are required to keep their structural stability when subjected to extreme mechanical and chemical environments. Thermal shock spalling, corro-sion, creep, and other complex phenomena may take place while using them. Therefore,

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  • High temperature, refractory materials, bricks, fibers ...

    REFRACTORY. Refractories are primarily in-organic ceramic materials designed to withstand very high temperatures (>1000 °F) encountered in the manufacturing process. Refractories have higher heat resistance than metals and alloys and are resistant to thermal stress, physical wear, and corrosion. Hence they find wide applications in oil and gas ...

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  • 4823 PDFs | Review articles in REFRACTORY MATERIALS

    M. Hogenboom. Refractory ceramics is a diverse class of materials used to insulate industrial furnaces and protect them from liquid metals, slags and hot gases. Concretes (based on calcium ...

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  • Processing of refractory materials using various

    Processing of refractory materials using various magnesium sources derived from Zinelbulak talc-magnesite Mirabbos Hojamberdiev 1,2), Pulat Arifov ... through a modified sol-gel method…

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  • US2621131A - Method of consolidating refractory

    US2621131A US84345A US8434549A US2621131A US 2621131 A US2621131 A US 2621131A US 84345 A US84345 A US 84345A US 8434549 A US8434549 A US 8434549A US 2621131 A US2621131 A US 2621131A Authority US United States Prior art keywords refractory lime silica magnesia less Prior art date 1949-03-30 Legal status (The legal status is an assumption and is not a legal conclusion.

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  • Refractory Materials - an overview | ScienceDirect Topics

    In this method, the source materials are placed in a crucible (Fig. 2 b) with water-cooled radiofrequency (RF) inductive coils winding around it to supply the heating power (Fig. 2 c). Although the inductive heating method can overcome the heating issue for refractory materials, the crucible itself remains a source of contaminant flux during ...

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  • RH systems using refractory materials ~ LONTTO

    2021-6-5 · RH systems using refractory materials ~ LONTTO Refractory. RH refining method is the German steel company Ruhrstahl and Heraens joint in 1958 the successful development of the vacuum cycle degassing method. RH refining technology because of its good degassing effect, less cooling, wide application and so on, so far the world has been widely ...

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  • Method of producing refractory materials and their ...

    23. A method according to claim 1, wherein said shaping step comprises the manufacture of objects, section members, tubes, or panels of refractory materials. 24. A method according to claim 1, wherein said shaping step comprises application of said paste to a wall which is to be exposed to liquid metal. 25.

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  • Commonly Used Refractory Materials Introduction -

    2020-10-23 · Refractory manufacturing involves four processes: raw material processing, forming, firing, and final processing. Figure 11.5-1 illustrates the refractory manufacturing process. Raw material processing consists of crushing and grinding raw materials, followed if necessary by size classification and raw materials calcining and drying.

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  • 11.5 Refractory Manufacturing - EPA

    REFRACTORY. Refractories are primarily in-organic ceramic materials designed to withstand very high temperatures (>1000 °F) encountered in the manufacturing process. Refractories have higher heat resistance than metals and alloys and are resistant to thermal stress, physical wear, and corrosion. Hence they find wide applications in oil and gas ...

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  • High temperature, refractory materials, bricks, fibers ...

    The joining of materials using heterogeneous reac- ... this method is character-ized by the propagation of a high-temperature combus- ... refractory materials, such as graphite, carbon–carbon ...

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  • Combustion joining of refractory materials

    The use of secondary raw materials Secondary chamotte Using these recycled raw materials is relatively simple, also in view of the refractory items usually made using them. For example: - Castables , rammings, plastics and gunnings for general use - Fired fireclay for general use The replacement percentages range from 10-15% to as high as 80%

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  • Recovery of spent refractories: how to do it and using ...

    Three different alumina refractory materials were investigated by quenching in the water at the temperature differences of 300, 600 and 900 °C and with cycles of 1, 3, or 5.

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  • (PDF) Calculation of Temperature and Thermal Stress

    2001-1-1 · The raw materials used in processing of low grade barium hexaaluminate were Egyptian barite and Chinese calcined bauxite, while highly pure barium hexaaluminate was prepared using chemically pure BaSO 4 and Al 2 O 3.The various raw materials were investigated for their mineralogical and chemical compositions using XRD Fig. 1 and wet chemical analysis Table 1, respectively.

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  • Refractory materials, ceramic materials, silicate materials

    Refractory materials. Method of test for linear thermal expansion: ČSN EN 1094-1 : Insulating refractory products - Part 1: Terminology, classification and methods of test for high temperature insulation wool products: ČSN EN 1094-4 : Insulating refractory products. Part 4: Determination of bulk density and true porosity: ČSN EN 1094-6

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  • HOW TO CLASSIFY REFRACTORY MATERIALS - idc

    2019-2-4 · The best method to classify the refractory materials is on the basis of their chemical behavior, i.e. their reaction to the type of slags. Accordingly we have three categories of Refractory materials: Acid, Basic & Neutral. Apart from these we can classify refractories into few more

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  • Refractory Materials Classified | African Pegmatite

    2021-5-19 · Refractory materials is a broad term for any material that is broadly tolerant of high temperatures and is resistant to chemical attack at those high temperatures.. There are many classes of refractory materials, and a wide array of materials that fall into those categories. Here, a variety of such materials will be discussed and categorised in terms of their chemical composition.

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  • 4823 PDFs | Review articles in REFRACTORY MATERIALS

    M. Hogenboom. Refractory ceramics is a diverse class of materials used to insulate industrial furnaces and protect them from liquid metals, slags and hot gases. Concretes (based on calcium ...

    Get Price
  • Thermodynamic Modeling and Experimental Investigation

    2020-12-3 · for evaluation based on refractory composition (Table 2). Specifically, the composition was selected to evaluate the effect of replacing SiO 2 by CaO to increase the corrosion resi stance of refractory materials. R1is a high Al 2 O 3 /SiO 2 ratio refractory with low content of CaO. It is a low cement refractory with Al non-wetting properties.

    Get Price
  • Recovery of spent refractories: how to do it and using ...

    The use of secondary raw materials Secondary chamotte Using these recycled raw materials is relatively simple, also in view of the refractory items usually made using them. For example: - Castables , rammings, plastics and gunnings for general use - Fired fireclay for general use The replacement percentages range from 10-15% to as high as 80%

    Get Price
  • Refractory Material Testing Laboratory | Sigmatest

    Refractory Standards. ASTM's refractory standards are instrumental in specifying, testing, and evaluating the chemical, physical, and mechanical properties of various materials and products made of refractory. These materials, which are commonly made from the oxides of aluminum (alumina), silicon (silica), magnesium (magnesia), and calcium ...

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  • Refractory Lining Materials Testing - Metso Outotec

    2019-5-25 · A laboratory method for studying refractory deterioration at temperatures and conditions relevant for biomass and waste fuel combustion was developed. Alumina refractory samples were exposed to a K 2 CO 3 –KCl mixture at 800 and 1000 °C for 168 h. Different approaches to analyze alkali penetration into the refractory material were tested.

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  • Refractory raw materials, method for production

    Refractory raw materials, method for production thereof and refractory using the material . United States Patent 7060642 . Abstract: Refractories obtained by molding a refractory raw material composition containing a refractory raw material including graphite grains having an average grain size of 500 nm or less or a refractory raw material ...

    Get Price
  • RH systems using refractory materials ~ LONTTO

    2021-6-5 · RH systems using refractory materials ~ LONTTO Refractory. RH refining method is the German steel company Ruhrstahl and Heraens joint in 1958 the successful development of the vacuum cycle degassing method. RH refining technology because of its good degassing effect, less cooling, wide application and so on, so far the world has been widely ...

    Get Price
  • (PDF) Analysis of Refractory Materials for Metallurgy

    2008-12-17 · Figure 5. Bulk density (lbs/ft') of the refractory materials. B. Modulus of Rupture Modulus of rupture measurements were performed according to ASTM C133: Standard Test Methods for Cold Crushing Strength and Modulus of Rupture of Refractories'. The measurements were carried out using …

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  • Commonly Used Refractory Materials Introduction -

    Refractory Standards. ASTM's refractory standards are instrumental in specifying, testing, and evaluating the chemical, physical, and mechanical properties of various materials and products made of refractory. These materials, which are commonly made from the oxides of aluminum (alumina), silicon (silica), magnesium (magnesia), and calcium ...

    Get Price
  • (PDF) Review of Refractory Materials for Innovative ...

    2019-6-28 · Powdered product consisting of carefully selected refractory aggregate, ultrafine powdered materials and a small amount of alumina cement. With wet gunning method of low cement castable refractories, the task of mixing the product in a mixer was a limiting

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  • Refractory Material Testing Laboratory | Sigmatest

    2021-5-1 · 1. Introduction. Refractory metals are metals with high melting points (above 2200 °C) .This property makes them desirable materials for a wide range of industrial applications .One of the earliest and most well-known of these applications is the use of W in incandescent lighting .Today, refractory metals are present in many cutting-edge technologies as components exposed to extreme ...

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  • HOW TO CLASSIFY REFRACTORY MATERIALS - idc

    2019-2-4 · The best method to classify the refractory materials is on the basis of their chemical behavior, i.e. their reaction to the type of slags. Accordingly we have three categories of Refractory materials: Acid, Basic & Neutral. Apart from these we can classify refractories into few more

    Get Price
  • Refractory Materials | Kingsman Eng. & Industrial ...

    Refractory castables are premixed combinations of refractory aggregates, matrix components or modifiers, bonding agents, and admixtures. They are mixed with a liquid (usually water) at the point of installation and vibrated, poured, pumped, or pneumatically shot into place to form a refractory shape or structure that becomes rigid because of hydraulic or chemical setting.

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  • Thermodynamic Modeling and Experimental Investigation

    2020-12-3 · for evaluation based on refractory composition (Table 2). Specifically, the composition was selected to evaluate the effect of replacing SiO 2 by CaO to increase the corrosion resi stance of refractory materials. R1is a high Al 2 O 3 /SiO 2 ratio refractory with low content of CaO. It is a low cement refractory with Al non-wetting properties.

    Get Price
  • Thermal Shock Testing of Refractory Materials Using

    2012-11-1 · The thermal shock behavior of ceramic refractory materials is of particular interest. These materials are usually tested in downward thermal shocks by cooling hot specimens in water or air. In contrast to this method, the use of electron beam material testing facilities offers an alternative approach to perform thermal shock tests on heating. The method of thermal shock testing by an electron ...

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  • Refractory Material Testing - Lab Testing Services for ...

    2020-3-5 · Refractory materials are basically inorganic non-metallic substances which are composed of thermally stable mineral aggregates, a binder phase, and additives. Refractory substances are supposed to be able to withstand the varying degrees of severity in terms of exposure to abrasive and corrosive solids, liquids, or gases at extremely high ...

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  • Refractory Material Testing Laboratory | Sigmatest

    2009-8-31 · specifications. The combustion-joining (CJ) method, which will be described further, is an attractive approach for bonding refractory materials. Advances in materials joining using combustion phenomena have been dis-cussed in detail in a recent review.4 Selecting an appropriate joining method …

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  • Combustion joining of refractory materials:

    2018-6-12 · The materials and its properties used for refractory are studied here with its different types. This report is related to thermal analysis of refractory which is 305 mm thick and temperature distribution at certain distance by using ANSYS software.3D Model is drawn in solid works and then imported to ANSYS for next analysis.

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  • Heat recovery analysis of boiler furnace using refractory ...

    2013-10-15 · Review Combustion synthesis of refractory and hard materials: A review Guanghua Liu a,⁎, Jiangtao Li a,⁎⁎, Kexin Chen b a Technical Institute of Physics and Chemistry, Key Laboratory of Functional Crystals and Laser Technology, Chinese Academy of Sciences, Beijing 100190, China b Department of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine …

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