scholarly journals HIGHLY POROUS GRANULATED CORUNDUM AGGREGATE PREPARED OUT OF ALUMINA-POLYSTYRENE-FOAM MIXTURE. PART 6. OPERATION OPTIMIZATION FOR THE ROTARY TABLE PELLETIZER'S

2018 ◽  
pp. 38-44
Author(s):  
V. N. Sokov
Keyword(s):  
Rotary Table ◽  
Polystyrene Foam ◽  
Operation Optimization ◽  
Highly Porous

Bottom-up and up-down strategy to obtain the highly porous polystyrene foam for oily water remediation

2020 ◽  
pp. 118233
Author(s):  
Ning Zhang ◽  
Yunfei Qi ◽  
Suhuan Tian ◽  
Yue Wang ◽  
Ping Cui ◽  
...  
Keyword(s):  
Water Remediation ◽  
Polystyrene Foam ◽  
Bottom Up ◽  
Oily Water ◽  
Highly Porous

scholarly journals Highly porous granulated corundum aggregate prepared out of alumina-polystyrene-foam mixture. Part 8. The well-targeted drying and firing schedulers for the raw corundum pellets

2018 ◽  
pp. 55-57
Author(s):  
V. N. Sokov
Keyword(s):  
Heating Rate ◽  
Polystyrene Foam ◽  
Gaseous Products ◽  
Hydrolysis Products ◽  
Drying Condition ◽  
Low Sensitivity ◽  
Drying Conditions ◽  
Highly Porous

The results of the raw corundum pellets drying condition investigation confrmed completely the supposition that the alumina-polystyrene-foam mixtures have the low sensitivity to the drying conditions. This fact allowed to combine the drying and the fring in one thermal vessel. As the vigorous evolution of the hydrolysis products and the polystyrene foam burning can damage the raw pellets, the heating rate should be set so that to give the gaseous products time to diffuse out of the material without breaching its structure. The well-targeted fring scheduler is proposed in the article.Ill.5.

scholarly journals Highly porous granulated corundum aggregate prepared out of alumina-polystyrene-foam mixture. Part 7. The study of possibility to prepare the hollow corundum pellets

2018 ◽  
pp. 53-55
Author(s):  
V. N. Sokov
Keyword(s):  
Fractional Composition ◽  
Rotation Frequency ◽  
Production Quality ◽  
Polystyrene Foam ◽  
Technical Alumina ◽  
Plate Rotation ◽  
High Dynamic ◽  
Highly Porous

Fractional composition of the corundum pellets is defined mostly by the polystyrene foam balls grading, by the mixture moisture, and by the granulation's parameters. The using of the high dynamic packing loading influences negatively on the production quality. The plate' rotation frequency, its angle and the granulation time were established in the article. The conditions of the hollow pellets production on base of the technical alumina were developed.

scholarly journals Highly porous granulated corundum aggregate prepared out of alumina-polystyrene-foam mixture. Part 9. Physical and technical properties of the porous corundum pellets and of the pellets-based filling materials

2018 ◽  
pp. 58-60
Author(s):  
V. N. Sokov
Keyword(s):  
Grain Size ◽  
Heat Conductivity ◽  
Polystyrene Foam ◽  
Disperse Composition ◽  
Filling Materials ◽  
Technical Properties ◽  
Highly Porous

The investigating results are given for the strength capabilities of both the separate fractions and the fraction-based mixtures. It was established that to decrease the flling materials' heat conductivity the diameter of the pellets should be reduced or the density of the poly-disperse composition should be increased. The introducing of the corundum flling with grain size of not more than 60 micrometers into the batch's composition raises the pellets' thermal stability.Ill.5. Tab. 3.

Applications of Transmission Electron Microscopy in the Characterization of Metal Machinability

1968 ◽  
Vol 26 ◽  
pp. 442-443 ◽  
Author(s):  
L.E. Murr ◽  
A.B. Draper
Keyword(s):  
Electron Microscopy ◽  
State Physics ◽  
Test Material ◽  
Milling Machine ◽  
Rotary Table ◽  
Solid State Physics ◽  
Materials Properties ◽  
Transmission Electron ◽  
Selection Of

The industrial characterization of the machinability of metals and alloys has always been a very arbitrarily defined property, subject to the selection of various reference or test materials; and the adoption of rather naive and misleading interpretations and standards. However, it seems reasonable to assume that with the present state of knowledge of materials properties, and the current theories of solid state physics, more basic guidelines for machinability characterization might be established on the basis of the residual machined microstructures. This approach was originally pursued by Draper; and our presentation here will simply reflect an exposition and extension of this research.The technique consists initially in the production of machined chips of a desired test material on a horizontal milling machine with the workpiece (specimen) mounted on a rotary table vice. A single cut of a specified depth is taken from the workpiece (0.25 in. wide) each at a new tool location.

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