scholarly journals Smoldering spot ignition of natural fuels by a hot metal particle

2017 ◽  
Vol 36 (2) ◽  
pp. 3211-3218 ◽  
Author(s):  
James L. Urban ◽  
Casey D. Zak ◽  
Jiayun Song ◽  
Carlos Fernandez-Pello
Keyword(s):  
Metal Particle ◽  
Hot Metal

Electron Microscopy of the Shape of Small Metal Particles

1977 ◽  
Vol 35 ◽  
pp. 300-301
Author(s):  
M. Jose Yacaman
Keyword(s):  
Electron Microscopy ◽  
Metal Particle ◽  
Field Experiments ◽  
Size Range ◽  
Dark Field ◽  
Metal Particles ◽  
Bragg Condition ◽  
Crystal Particle ◽  
Small Metal Particle ◽  
Small Metal Particles

In the Study of small metal particles the shape is a very Important parameter. Using electron microscopy Ino and Owaga(l) have studied the shape of twinned particles of gold. In that work electron diffraction and contrast (dark field) experiments were used to produce models of a crystal particle. In this work we report a method which can give direct information about the shape of an small metal particle in the amstrong- size range with high resolution. The diffraction pattern of a sample containing small metal particles contains in general several systematic and non- systematic reflections and a two-beam condition can not be used in practice. However a N-beam condition produces a reduced extinction distance. On the other hand if a beam is out of the bragg condition the effective extinction distance is even more reduced.

Increase of desulphurization potential of technological systems of hot metal injection desulphurization by various reagents

2019 ◽  
Vol 75 (11) ◽  
pp. 1237-1243
Author(s):  
A. F. Shevchenko ◽  
I. A. Manachin ◽  
B. V. Dvoskin ◽  
A. S. Vergun ◽  
S. A. Shevchenko ◽  
...  
Keyword(s):  
Technological Systems ◽  
Hot Metal

Review of methods of slag removal from melt surface in hot metal and steel ladles

2020 ◽  
Vol 76 (12) ◽  
pp. 1243-1252
Author(s):  
B. A. Sivak ◽  
A. V. Protasov ◽  
L. A. Smirnov
Keyword(s):  
Settling Tank ◽  
Necessary Condition ◽  
Hot Metal ◽  
Slag Removal ◽  
Production Scale ◽  
Technical Parameters ◽  
Ecological Requirements ◽  
The Usa ◽  
Work Done ◽  
Technological Methods

The removal of slag from melt surface of hot metal and steel ladles is a necessary condition to provide a deep desulphurization and dephosphorization of hot metal and steel in the process of their processing. A review of methods of slag skimming presented, mainly based on slag mechanical shoveling and its removal out of ladles by vacuum sucking. It was shown, that manipulators design for the slag skimming working instrument moving depends on the production scale, mass of the processed heats, amount and properties of the slag to be removed, production process intensity and ecological requirements. Peculiarities of designs and technical parameters of machines for slag skimming presented, designed by Irkutsk plant of heavy machinery, Scientific and Production Enterprise n.a. M.I. Platov, VNIIMETMASH, Kuznetsk and Novolipetsk steel plants. Technological methods of control of slag composition and physical properties considered, first of all of viscosity and fluidity, which have significant effect on selection of a method of slag skimming. Advantages and drawbacks of actions, aimed at more complete slag removal from metal surface by a scraper noted including bath blowing off by an inert gas, liquid slag tapping into am intermediate settling tank following its removal into a slag bowl. In case of satisfactory fluidity it is possible to slag removal by vacuum sucking, which at the same time promoted the melt degassing. Work done in this area abroad noted. Methods of vacuum slag removal developed in the USA and Japan described.

Prediction of Mass Transfer in Hot Metal Reactors

2019 ◽  
Author(s):  
L. Oliveira Campos ◽  
P. Gardin ◽  
S. Vincent
Keyword(s):  
Mass Transfer ◽  
Hot Metal

CYW CHOICE

Alloy Digest ◽  
1956 ◽  
Vol 5 (2) ◽  
Keyword(s):  
Tensile Properties ◽  
Tool Steel ◽  
Heat Treating ◽  
Hot Metal ◽  
Hot Work Steel ◽  
Class Iv

Abstract C. Y. W. CHOICE steel is a chromium hot work steel developed for applications where dies or tools are subjected to heavy pressure or impact while in contact with hot metal. It is an ASM Class IV A-2 tool steel. This datasheet provides information on composition, hardness, elasticity, and tensile properties. It also includes information on forming, heat treating, and machining. Filing Code: TS-43. Producer or source: Firth Sterling Corporation.

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