scholarly journals RESEARCH THE INFLUENCE OF COMPONENTS CARBON OXIDE COMPOSITION ON STRUCTURE FORMED METAL

Author(s):  
I. L. Gonik ◽  
O. P. Bondareva ◽  
E. V. Sedov ◽  
P. V. Belitsky

The article discusses the possibility of replacing traditional charge materials for steel smelting with an oxide-carbon composition (scale-carbon briquettes) made from metallurgical waste. The possibility of replacing cast iron with briquettes for melt carburization is presented.

2012 ◽  
Vol 622-623 ◽  
pp. 685-689 ◽  
Author(s):  
Krzysztof Janerka ◽  
Jan Jezierski ◽  
Dariusz Bartocha ◽  
Jan Szajnar

In this paper are presented the results of researches, obtained during cast iron melting on basis of steel scrap and a carburizer (without pig iron in solid charge). In the process of carburization, there were used the carburizers such as anthracite, natural and synthetic graphite, petroleum and cupola coke, as well as charcoal. The grey cast iron was produced, for which quantitative analysis of graphite precipitations was performed. It was noticed that in case of using anthracite as carburizer, the smaller graphite precipitations were obtained. In authors’ opinion they are consequences of anthracite structure, consisted of fine graphite flakes and phenomenon of charge materials features’ transfer into melted alloys (structure heredity).


2020 ◽  
Vol 299 ◽  
pp. 530-534
Author(s):  
Viktor A. Kukartsev ◽  
Vladislav V. Kukartsev ◽  
Vadim S. Tynchenko

A brief analysis of the cast iron and steel smelting in induction furnaces of industrial and medium frequency has been carried out. The analysis of the used metal scrap for the smelting of synthetic iron in induction melting furnaces with a padded lining of a lining mixture, based on quartzite, is carried out. The requirements for temperature melting modes, which are regulated by this type of melting furnaces developers, are reflected. The advantages and disadvantages of using induction crucible furnaces of industrial and medium frequency are considered. The features of smelting synthetic pig iron in Russia are noted, the main of which are the following: the absence of cast iron scrap, which makes it necessary to use a metal scrap from a single steel scrap, and use temperature melting conditions above 1450 ° C; use a lining based on quartzite, as the cheapest, but sharply reducing its resistance to the operation of the furnace at such melting temperatures (from 300-350 to 200-250 smelts). The actuality of the possibility of steel smelting in induction crucible furnaces of industrial frequency with the use of acid lining, based on the Pervouralsk quartzite, is substantiated. It is explained by the fact that existing foundries are equipped mainly with induction melting furnaces of industrial frequency, and the use of induction melting furnaces of medium frequency requires considerable material costs.


1902 ◽  
Vol 53 (1362supp) ◽  
pp. 21824-21826
Author(s):  
Charles H. Benjamin
Keyword(s):  

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