scholarly journals Fluidization control in the wurster coating process

2003 ◽  
Vol 57 (12) ◽  
pp. 641-644 ◽  
Author(s):  
Mafadi el ◽  
Murielle Hayert ◽  
Denis Poncelet
Keyword(s):  
Fluidized Bed ◽  
Coating Process ◽  
Coating Quality ◽  
Easy Method ◽  
Wurster Coating

Paniculate coating process in a fluidized bed involves different sub processes including particle wetting, spreading and also consolidation or drying of the coating applied. These sub processes are done simultaneously to particle fluidization and motion. All the parameters of fluidization are known to affect the coating quality. That is why the motion of particles in the Wurster coating process has been observed and described step by step. These observations have achieved a general understanding of phenomena which take place inside the bed during fluidization and have allowed the development of an easy method for optimizing all the parameters affecting this operation.

Monte Carlo simulations to determine coating uniformity in a Wurster fluidized bed coating process

2006 ◽  
Vol 166 (2) ◽  
pp. 81-90 ◽  
Author(s):  
KuZilati KuShaari ◽  
Preetanshu Pandey ◽  
Yongxin Song ◽  
Richard Turton
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Fluidized Bed ◽  
Coating Process ◽  
Fluidized Bed Coating ◽  
Coating Uniformity

THE INFLUENCE OF INTERSTITIAL IMPURITIES IN THE Zr–Y TARGET ALLOYS ON THE HEAT RESISTING CERAMIC COATING QUALITY

2021 ◽  
pp. 52-61
Author(s):  
S.P. Konokotin ◽  
◽  
R.M. Nazarkin ◽  
Keyword(s):  
High Temperatures ◽  
Ceramic Coating ◽  
Chemical Deposition ◽  
Thermal Barrier ◽  
Coating Process ◽  
Plasma Chemical ◽  
Coating Quality ◽  
Interstitial Impurities ◽  
Argon Ions

The influence of interstitial impurities in the Zr–Y target alloys (manufactured by two different techniques) on the quality of thermal barrier ceramic layers of heat resisting coating are studied in this work. The heat resisting ceramic coating manufactured in the UOKS-2 devices by magnetron medium-feculence plasma–chemical deposition on the surface of components that are used at the high temperatures (above 1150 °C). It was found that when the content of interstitial impurities in the target alloy is more than 0,1% (1000 ppm), the rate of the coating process decreases and has to be maintained by increasing the energy of argon ions. This leads to overheating of the target alloy and the surface of the parts (substrate) which impairs the adhesion of the deposited atoms.

The coating process of acetylphthalylcellulose tablets in an air-fluidized bed

1979 ◽  
Vol 13 (8) ◽  
pp. 852-855
Author(s):  
E. P. Ustyanich ◽  
T. A. Groshovyi
Keyword(s):  
Fluidized Bed ◽  
Coating Process

A FEM model of conventional hot dipping coating process by using a fluidized bed

2005 ◽  
Vol 54 (4) ◽  
pp. 390-398 ◽  
Author(s):  
M. Barletta ◽  
G. Simone ◽  
V. Tagliaferri
Keyword(s):  
Fluidized Bed ◽  
Coating Process ◽  
Fem Model

scholarly journals Coating quality as affected by core particle segregation in fluidized bed processing

2012 ◽  
Vol 113 (3) ◽  
pp. 415-421 ◽  
Author(s):  
L. Atarés ◽  
F. Depypere ◽  
J.G. Pieters ◽  
K. Dewettinck
Keyword(s):  
Fluidized Bed ◽  
Core Particle ◽  
Particle Segregation ◽  
Coating Quality

The Research of the Agglomeration Process During the Formation of an Abrasive-Polymer Compound for Waterjet Cutting in a Fluidized bed Installation

2021 ◽  
Author(s):  
Olga Kozhus ◽  
Gennady Barsukov
Keyword(s):  
Fluidized Bed ◽  
Polymer Coating ◽  
Critical Size ◽  
Coating Process ◽  
Abrasive Material ◽  
Waterjet Cutting ◽  
Agglomeration Process ◽  
Polymer Compound ◽  
Large Material

Abstract The article deals with the issues that allow creating conditions that exclude the formation of abrasive agglomerations in the process of applying a polymer coating in installations with a fluidized bed. The authors pay attention to the stages of agglomeration of the abrasive in the fluidized bed, as well as possible situations that arise when one particle collides with another. The problem of agglomeration development in the installation chamber is relevant, as it directly affects the quality of the coating, its uniformity. In addition, the critical size of the agglomerations will stop the coating process and lead to large material losses. The research carried out in the article on the process of obtaining a new effective abrasive material for waterjet cutting makes it possible to increase the cutting capabilities of a water jet.

scholarly journals Development and Application of a Process Window for Achieving High-Quality Coating in a Fluidized Bed Coating Process

2009 ◽  
Vol 10 (3) ◽  
pp. 732-742 ◽  
Author(s):  
F. L. Laksmana ◽  
P. J. A. Hartman Kok ◽  
H. Vromans ◽  
H. W. Frijlink ◽  
K. Van der Voort Maarschalk
Keyword(s):  
Fluidized Bed ◽  
Process Window ◽  
Coating Process ◽  
High Quality ◽  
Fluidized Bed Coating
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