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refractory materials germany using method

  • Refractory Materials - htl-enertherm.eu

    Refractory materials include dense shaped refractory products, refractory bricks and insulating bricks, fiber-based refractory products as well as unshaped products. At Fraunhofer-Center HTL, refractory materials with optimized property profiles are developed to identify and deliver resource and energy-efficient solutions for various fire-proof applications.

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  • Recycling of refractory bricks used in basic

    2019-1-1 · In Germany, a method for reprocessing spent magnesia-chrome (MgO-Cr) bricks into refractory raw materials by a combination of comminution and water washing was developed already in 1985 (Nazirizadeh et al., 1985).

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  • Estimation of Damage in Refractory Materials after ...

    Estimation of Damage in Refractory Materials after Progressive Thermal Shocks with Resonant Frequency Damping Analysis N. Traon*, T. Tonnesen, R. Telle GHI/RWTH-Aachen, Aachen, Germany, Institute of Mineral Engineering – Department of Ceramics and Refractory Materials, Aachen, Germany

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  • Increase refractory materials anti damage ability by ...

    2019-12-30 · Flame gunning method of flame gunning refractory products, powder particles melt in the liquid or gaseous fuel flame, and was sent to the surface to be repaired. At this point the masonry was nozzle flame supplementary heating, so using this method may not have special restrictions on temperature is put forward in this paper, and can adopt ...

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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

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  • Refractory Materials for Secondary Steelmaking

    2020-1-4 · the corrosion resistance of refractory parts by modifying their porosities [6–8]. The discrete element method (DEM) is a numerical method that is widely accepted as a useful tool to analyze the behavior of granular materials and solve di erent engineering problems, such as granular flows, powder mechanics, and rock mechanics [9].

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  • Prediction of Effective Thermal Conductivity of Refractory ...

    ing refractory materials by the hot-wire method at tem-peraturesupto800°CwaspresentedearlierbyTomeczek and Suwak 29. In the present work, the thermal conductivity of the coked samples of dimensions 223 mm × 122 mm × 68 mm was measured in the range from room temperature up to 1000 °C using the parallel hot-wire technique according

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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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  • 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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  • Thermal conductivity of high porosity alumina

    2013-12-1 · Here, using the GS (gelation of slurry) method that was previously developed to produce high porosity metal foam,4, 5, 6 we produced alumina refractory bricks. We then measured the porosity, mechanical properties (i.e., cell structure and compressive …

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  • Recycling of refractory bricks used in basic

    2019-1-1 · In Germany, a method for reprocessing spent magnesia-chrome (MgO-Cr) bricks into refractory raw materials by a combination of comminution and water washing was developed already in 1985 (Nazirizadeh et al., 1985).

    Get Price
  • ISO 5018:1983(en), Refractory materials ?

    International Standard ISO 5018 was developed by Technical Committee ISO/TC 33, Refractories, and was circulated to the member bodies in May 1982. It has been approved by the member bodies of the following countries : Australia. Germany, F. R.

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  • Thermal Shock Testing of Refractory Materials Using

    2012-4-12 · 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.

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  • Colloquium - ICR 2020

    Hochschule Koblenz, Germany and Forschungsgemeinschaft Feuerfest e. V., Germany. Nr. 36 Influence of recycled refractory raw materials on the coagulation and setting behavior of CAC-bonded refractory …

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  • The application and trend of refractories for glass kiln -2

    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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  • Refractory raw materials, method for production

    2021-4-23 · Combined refractory materials due to their physical and mechanical properties and high stability have been widely used in recent years in metallurgical assemblies with sudden changes in temperature regime, as well as during prolonged downtime or temporary shutdown. Silica refractory can be prepared from clay, chamotte with the addition of silicon production waste (microsilica), as well as …

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  • Combined Refractory Materials with Addition of

    2016-5-31 · The oxygen transfer from refractory into the steel melt occurs mainly via redox reactions of refractory oxides with alloying elements with high oxygen affinity, e.g. aluminum. Until now, the determination of the reoxidation stability of refractory materials is only possible with high experimental effort by microscopic analysis.

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  • Evaluation of Reoxidation Tendency of Refractory

    2021-4-15 · The chromium-promoted preparation of forsterite refractory materials from ferronickel slag was investigated by microwave sintering of the slag with the additions of sintered magnesia and 0–10 wt% chromium oxide (Cr 2 O 3).The thermodynamic calculations revealed that the addition of Cr 2 O 3 can promote the formations of spinel and liquid phase and maintain high content of forsterite below ...

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  • refractory materials in blast furnace in germany

    Refractory lining of blast furnace – IspatGuru. 2021-2-27 · 1. Introduction. One of the most important feature of refractories used as lining materials in a blast furnace is their degradation resistance, which strongly affects the lifetime of the whole furnace [1,2].The micropore carbon materials are used mainly in the hearth of a blast furnace, thus they are subjected mainly to the ...

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  • Preparation of refractory cordierite using amorphous rice ...

    Preparation of refractory cordierite using amorphous rice husk silica ... same method but different raw materials, including andalusite and ... chased from Merck (kGaA, Damstadt, Germany). Fig. 1 ...

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  • 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%

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  • Colloquium - ICR 2020

    Hochschule Koblenz, Germany and Forschungsgemeinschaft Feuerfest e. V., Germany. Nr. 36 Influence of recycled refractory raw materials on the coagulation and setting behavior of CAC-bonded refractory …

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  • Thermal Shock Testing of Refractory Materials Using

    2012-4-12 · 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.

    Get Price
  • THE IMPORTANCE AND TESTING OF DENSITY

    2010-3-26 · Density and porosity (AP, BD and ASG) can be measured of refractory materials using the Archimedes buoyancy technique with dry weights, soaked weights and immersed weights in water (mercury, xylene or denatured alcohol if the refractory is water sensitive) (Figure 2).

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  • New 3D Printing Material-Refractory Metal

    2021-5-25 · The refractory metal spherical powders for 3D printing we have manufactured are now available in bulk, and are even applied in the key components of aerospace industry. Materials such as tungsten, molybdenum and rhenium have high melting point. For example, the melting point of tungsten is 3410 degrees. To turn such metals into spherical ...

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  • Evaluation of Reoxidation Tendency of Refractory

    2016-5-31 · The oxygen transfer from refractory into the steel melt occurs mainly via redox reactions of refractory oxides with alloying elements with high oxygen affinity, e.g. aluminum. Until now, the determination of the reoxidation stability of refractory materials is only possible with high experimental effort by microscopic analysis.

    Get Price
  • Refractory Lining - an overview | ScienceDirect Topics

    2010-4-16 · In Smithells Metals Reference Book (Eighth Edition), 2004. 27.8 Design of refractory linings. A refractory lining usually comprises a safety or backup layer behind the working lining in contact with the furnace contents. The whole body is encased in a metal shell. The temperature gradients in the system and the properties of all materials must be considered.

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  • Refractory Germany | Europages

    2021-5-10 · Refractory materials and products (379) Roofing materials (213) Wood - sawn and treated (217) ... in Germany and supplier of raw materials for refractory Industries such as Andalusire , Bauxite , Chamotte , Dolomit , Feldespar or some other mineral products with high quality . We can supply...

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  • Refractory Materials for Energy Applications

    Refractory Materials for Energy Applications SteffenAntusch,*Jens Reiser, JanHoffmann, andAlexandru Onea[a] ... 76021 Karlsruhe(Germany) E-mail:[email protected] This publication is part of aSpecial Issue on 'Energy Research at ... is an alternative method to conventional machining.

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  • Implementation of a Standard Test Method for

    2014-1-31 · Implementation of a Standard Test Method for Abrasion Resistance of Refractory Materials for Testing at Elevated Temperatures Ralf Simmat Forschungsgemeinschaft Feuerfest e. V., Höhr‐Grenzhausen, Germany

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  • Synthesis of Refractory Materials by Skull Melting ...

    Abstract. This chapter discusses methods of growing refractory oxide single crystals and synthesis of refractory glasses by skull melting technique in a cold crucible. It shows the advantages of radiofrequency (RF) heating of dielectric materials in a cold crucible and points out some specific problems regarding the process of growing crystals ...

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  • Int. Journal of Refractory Metals and Hard Materials

    2017-5-9 · WC materials at a relatively low sintering temperature, thus improving the materials' fracture toughness and flexural strength [17–20].By using TiC as an additive, nearly fully dense WC composites with a Int. Journal of Refractory Metals and Hard Materials 48 (2015) 398–407

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  • FURNACES AND REFRACTORIES - Modern Eq

    2019-9-4 · Refractory chamber constructed of insulating materials to retain heat at high operating temperatures. Hearth to support or carry the steel, which consists of refractory materials supported by a steel structure, part of which is water-cooled. Burners that use liquid or gaseous fuels to raise and maintain the temperature in the chamber.

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  • Evaluation of Reoxidation Tendency of Refractory

    2016-5-31 · The oxygen transfer from refractory into the steel melt occurs mainly via redox reactions of refractory oxides with alloying elements with high oxygen affinity, e.g. aluminum. Until now, the determination of the reoxidation stability of refractory materials is only possible with high experimental effort by microscopic analysis.

    Get Price
  • Direct analysis of clay and refractory materials slurries ...

    First published on 22nd September 2006. The feasibility of clays and refractory materials analysis by direct introduction of slurries in an inductively coupled plasma optical emission spectrometry with axial viewing using the simplified generalized standard additions method (GSAM) was evaluated.The adopted approach is a multivariate extension of the conventional standard additions method, and ...

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  • US6165926A - Castable refractory composition and

    Cofermin China is the exclusive agent for many international refractory raw materials and chemicals producers,such as Carbores binder from Rutgers of Germany,Kyanite from KMC of U.S.A ,Marlusite from Andalusite Resources of South Africa,chemical additives

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  • Germany Manufacturer producer refractory products

    Germany: Browse through 117 Manufacturer producer in the refractory products and materials industry on Europages, a worldwide B2B sourcing platform.

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  • Refractory Materials for Energy Applications

    Refractory Materials for Energy Applications SteffenAntusch,*Jens Reiser, JanHoffmann, andAlexandru Onea[a] ... 76021 Karlsruhe(Germany) E-mail:[email protected] This publication is part of aSpecial Issue on 'Energy Research at ... is an alternative method to conventional machining.

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  • Fabrication of Refractory Materials from Coal Fly Ash ...

    2020-8-2 · Materials 2020, 13, 3406 4 of 15 by molding the samples into tablet-shaped materials using an EZIRCON hydraulic press jack to make them ready for firing. The samples were sintered at 1000 C, 1100 C, and 1200 C in a mu e furnace for 3 h at a constant temperature rate of 10 C per minute.The maximum heating capacity of the mu e furnace used in this

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  • FURNACES AND REFRACTORIES - Modern Eq

    2019-9-4 · Refractory chamber constructed of insulating materials to retain heat at high operating temperatures. Hearth to support or carry the steel, which consists of refractory materials supported by a steel structure, part of which is water-cooled. Burners that use liquid or gaseous fuels to raise and maintain the temperature in the chamber.

    Get Price
  • Papers - refractories-worldforum.com

    2021-6-4 · Refractory Materials Used for the Investment Casting Process and their Infuence on Ceramic Shell Properties. Clemens Lind, Joachim Wolff, Michael Weissenbacher. Volume 11, Issue 4, Pages 67 - 72. Keywords: investment casting, ceramic shell, ceramic slurry. Abstract References Full Article: Refractory Raw Materials from the Steel Industry

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  • Int. Journal of Refractory Metals and Hard Materials

    2017-5-9 · WC materials at a relatively low sintering temperature, thus improving the materials' fracture toughness and flexural strength [17–20].By using TiC as an additive, nearly fully dense WC composites with a Int. Journal of Refractory Metals and Hard Materials 48 (2015) 398–407

    Get Price
  • Int. Journal of Refractory Metals and Hard Materials

    2017-2-10 · method for the formation of alloys and composites[21].MAtreat-ment of elemental powder mixtures can generate equilibrium and non-equilibriumphasesandstructures,includingsolidsolutions,nano-crystalline materials, metastable compounds, and even amorphous solids [22,23]. The process of MA involves the repeated fracturing,

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  • ISO 528:1983(en), Refractory products ?

    1.1 This International Standard specifies a method for determining the pyrometric cone equivalent (refractoriness) of siliceous, low alumina fireclay and fireclay refractory materials and products. 1.2 Its useful range of application depends on the availability of suitable pyrometric reference cones.

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  • Refractory Materials for Casting Manganese Alloyed TRIP

    air. In refractory materials metal oxides can be ordered by increasing strength of the met-al oxide bond: B 2O 3, SiO 2, P 2O 5, Al 2O 3, TiO 2, FeO, MgO, MnO and CaO [11]. So it can be concluded that MnO reacts as a strong base. The high basicity of MnO-containing slags and melts results in a high degradation of acid and amphoteric refractory ...

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  • International Journal of Refractory Metals and Hard ...

    2021-6-5 · SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact. Help expand a public dataset of research that support the SDGs.

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