agglomerate sintering - search results
Lead-zinc Sintering Process Optimization For The ...
Burning through point (BTP) is an important parameter of the state of sintering process, which is a main indicator of good or bad. In order to meet the requirements of comprehensive production index, the optimization of sintering process will be divided into the production optimization of sintering agglomerate and BTP optimization.
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Iron Ore Agglomeration Processes and their Historical ...
The origin of sintering process goes back to 1887 when F. Haberlein and T. Huntington of England invented the process of agglomeration for sintering of sulphide ores. In this process, the sintering was carried with the sintering bed being blown with air from bottom upwards. The process was also known as up-draft sintering process.
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Generally, sintering process control consists of sinter chemical composition control, sintering process state control and sintering energy consumption control. ... The activating and sintering characteristics of hydroxyapatite agglomerate treated by shock wave were studied .
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Distinguishing between aggregates and agglomerates of ...
Sintering FSP-made particles from 200 to 800 °C for 4 h progressively increased the minimum primary particle size (by grain growth) and aggregate size (by neck growth and phase transformation). ... techniques measure agglomerate sizes but nothing can be said if these are aggregates or agglomerates. Small angle scattering has
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Measurement of agglomerate strength distributions in ...
Sintering tests 63 DISCUSSION 71 CONCLUSIONS 74 ACKNOWLEDGEMENT 75 REFERENCES 76 SECTION III. EFFECT OF AGGLOMERATE STRENGTH ON SINTERED DENSITY FOR YTTRIA POWDERS CONTAINING AGGLOMERATES OF MONOSIZE SPHERES 78 ABSTRACT 79 INTRODUCTION 80 EXPERIMENTAL 82 Powder preparation and characterization 82 Sintering …
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Effect of Particle Size Distribution on Sintering of ...
Effect of Particle Size Distribution on Sintering of Agglomerate-Free Submicron Alumina Powder Compacts December 2002 Journal of the European Ceramic Society 22(13):2197-2208
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Sintering method of agglomerate - russianpatents
Sintering is carried out by means of heat of burning of solid fuel in reducing-oxidizing atmosphere on olivine-ferrite bonds. EFFECT: enhanced reducibility of agglomerate and its strength; increased productivity. 3 cl, 2 tbl, 1 ex
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Dust Agglomeration in an Electrostatic Precipitator ...
ABSTRACT Dust agglomeration in an electrostatic precipitator (EP) during the sintering process taking place in an ironmaking plant was investigated. The dust agglomeration in the high sulfur flue gas dust hopper of the EP was very serious and did affect the removal of the dust from the hopper. The size of the agglomerate ranged from approximately 30–50 cm and was found to exhibit strong ...
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Sintering - Wikipedia
Sintering or frittage is the process of compacting and forming a solid mass of material by heat or pressure without melting it to the point of liquefaction.. Sintering happens as part of a manufacturing process used with metals, ceramics, plastics, and other materials.The atoms in the materials diffuse across the boundaries of the particles, fusing the particles together and creating one solid ...
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Soft- and Hard-Agglomerate Aerosols Made at High ...
Criteria for aerosol synthesis of soft-agglomerate, hard-agglomerate, or even nonagglomerate particles are developed on the basis of particle sintering and coalescence. Agglomerate (or aggregate) particles are held together by weak, physical van der Waals forces (soft agglomerates) or by stronger chemical or sintering bonds (hard agglomerates). Accounting for …
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Agglomerate And Particle-Size Effects On Sintering Yttria ...
The initial-, intermediate-, and final-stage sintering of fine crystallite yttria-stabilized zirconia was studied. Experiments were conducted on powder lots of differing agglomerate size and one specially prepared agglomerate-free powder. Initial-stage sintering kinetics were compared with a sintering study on larger crystallite size calcia ...
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A One-Dimensional Model for Coagulation, Sintering, and ...
teristic sintering time, and a final is the surface area of the sphere after complete sintering. The change in area can be related to the change in the number of primaries. Consider an agglomerate particle composed of n p primary particles of radius r p. The vol-ume and surface area of the agglomerate are expressed by the
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Agglomeration of Particles
Agglomeration is the formation of aggregate by the sticking together of feed and/or recycle materials, and it includes the formation of agglomerate nuclei. The main objective in agglomerating fines being the conversion of ores, minerals and chemicals of undesirable fineness into agglomerates characterised by a size consistency desirable for subsequent use or processing. In metallurgical ...
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The effect of agglomerate on micro-structural evolution in ...
Discrete element method (DEM) is used in the present paper to simulate the microstructural evolution of a planar layer of copper particles during sintering. Formation of agglomerates and the effect of their rearrangement on densification are mainly focused on. Comparing to the existing experimental observations, we find that agglomerate can form spontaneously in sintering and its rearrangement ...
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The Sintering Process of Iron Ore Fines – IspatGuru
The sintering process is used to agglomerate a mix of iron ores (blend), return fines, fluxes and coke, with a particle size of less than 10 mm, so that the resulting sinter, with a screened size of 10 mm to 30 mm, can withstand pressure and temperature conditions in the blast furnace.
ادامه مطلبBalling phenomena in direct laser sintering of stainless ...
At a lower scan speed of 0.05 m/s, a continuous sintered track was formed via the sufficient junction of inter-agglomerate sintering necks, showing no apparent balling effect (Fig. 6a). With increasing scan speed to 0.07 m/s, the surface of laser sintered track was considerably rough, although the sintered track retained uninterrupted ( Fig. 6 b).
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The effect of agglomerate on micro-structural evolution in ...
Discrete element method (DEM) is used in the present paper to simulate the microstructural evolution of a planar layer of copper particles during sintering. Formation of agglomerates and the effect of their rearrangement on densification are mainly focused on. Comparing to the existing experimental observations, we find that agglomerate can form spontaneously in sintering …
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Hierarchical Structured Nanomaterial Fabricated by ...
The key concept of nanopowder agglomerate sintering (NAS) process is based on the optimization of structure design and full density processing of nanopowder into nanostructured micro-components. The kinetics of NAS process is characteristic of being controlled by material transport through hierarchical interface structures of nanopowder agglomerates.
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Mathematical Modeling and Simulation in Matlab/Simulink of ...
Key-Words: - Sintering process, Sintering plant, Iron ores, Charge, Agglomerate, Sintering machine, Modeling, Simulation, Simulink 1 Introduction Restructuring of metallurgical industry is strongly influenced by the modernization of manufacturing processes from the sintering plants. Sintering, as physical-chemical process of iron
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From agglomerates to aggregates by sintering coalescence
agglomerate aggregate Sintering - Coaleascence . 27 Evolution of D f & D fm Aggregate morphology evolution by sintering: Number and diameter of primary particles, J. Aerosol Sci. 46, 7-19 (2012) . Ensemble average over 200 clusters with 16-512 PPs agglomerate aggregate . 28
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(PDF) The effect of agglomerate on micro-structural ...
The effect of agglomerate on micro-structural evolution in solid-state sintering. Chao Wang. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 37 Full PDFs related to this paper. READ PAPER. The effect of agglomerate on micro-structural evolution in solid-state sintering. Download. The effect of agglomerate on ...
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What is Agglomeration? - YouTube
Agglomeration connects multiple particles together with bridges that allow water to flow between particles to enhance solubility and create a high performan...
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Densification Behavior and Microstructural Development of ...
Densification behavior of nano-agglomerate powder during pressureless sintering of Fe-Ni nanopowder was investigated in terms of diffusion kinetics and microstructural development. To understand the role of agglomerate boundary for sintering process, densification kinetics of Fe-Ni nano-agglomerate powder with different agglomerate size was investigated.
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Agglomeration of food powder and applications
Agglomeration has many applications in food processing and major applications include easy flow table salt, dispersible milk powder and soup mix, instant chocolate mix, beverage powder, compacted cubes for nutritional-intervention program, health bars using expanded/puffed cereals, etc. The main pur …
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Phase transformations during sintering of titania ...
Over the time scales accessible to molecular dynamics simulations, we found that the final sintering agglomerate transformed to the rutile phase, provided one of the sintering nanoparticles was rutile, while sintering of anatase and amorphous nanoparticles resulted in a brookite agglomerate.
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Agglomerate and Particle Size Effects on Sintering Yttria ...
The initial-, intermediate-, and final-stage sintering of fine crystallite yttria-stabilized zirconia was studied. Experiments were conducted on powder lots of differing agglomerate size and one specially prepared agglomerate-free powder.
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Sintering of Polydisperse Nanometer-Sized Agglomerates ...
ABSTRACT. In order to evaluate the sintering characteristics of polydisperse TiO 2 and SiO 2 fractal agglomerates consisting of nm-sized primary particles (nanoparticles), the change in size distribution of agglomerates in a heated pipe is measured using a differential mobility analyzer and a condensation nucleus counter. Change in the structure and the primary particle size of the ...
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Agglomerate And Particle-Size Effects On Sintering Yttria ...
The initial-, intermediate-, and final-stage sintering of fine crystallite yttria-stabilized zirconia was studied. Experiments were conducted on powder lots of differing agglomerate size and one ...
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(PDF) Formation of agglomerate particles by coagulation ...
The characteristic time for coalescence or sintering, ~f, is the time needed to reduce by 63% the excess agglomerate surface area over that of a spherical particle with the same mass.
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【】sintering agglomeration！ - …
b) the sintering process takes place as the calcination temperature increase since 200to 800 c) the sintering is the only mechanism that explains the decline of BET surface area. ratio
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