Results 141 to 150 of about 105,362 (201)

Vitrification of electric arc furnace dusts

Waste Management, 2002
Electric arc furnace baghouse dust (EAFD), a waste by-product of the steelmaking process, contains the elements that are volatilized from the charge during the melting (Cr, Pb, Zn, Cu and Cd). The results of leaching tests show that the concentration of these elements exceeds the regulatory limits.
PELINO, Mario, KARAMANOV A, PISCIELLA P., ZANNETI D., CRISUCCI S.   +4 more
openaire   +3 more sources

Rotating Regulator For Arc Furnaces

Transactions of the American Institute of Electrical Engineers, 1943
Increased production of steel alloy for the war effort has brought about a wider use of electric-arc furnaces, and with this improvements have been made in automatic regulation of electrode position. The Rototrol regulator described in this paper is of the rotating type which controls electrode position as determined by response to current in the ...
R. A. Geiselman, C. C. Levy, W. R. Harris   +2 more
openaire   +1 more source

Electronic regulator for arc furnaces

Electrical Engineering, 1944
With the increased use of arc furnaces in the production of alloy steel, new interest has been aroused in both old and new methods of automatic regulation of electrode position. The regulator described in this paper is an electronic type which controls electrode position as determined by response to current in the electrode and voltage between the ...
J. E. Reilly, C. E. Valentine
openaire   +1 more source

Arc Furnace Feedstock

1983
The purpose of this chapter is to give an up-to-date description of the raw materials needed for electric arc steelmaking. Most important is a supply of iron, which may be obtained from two major sources, namely (i) steel and cast iron scrap and (ii) iron ore. Iron derived from ore may be produced either by direct reduction, in which case it is usually
D. M. Headworth, R. D. Walker
openaire   +1 more source

Dc arc melting furnaces

Refractories and Industrial Ceramics, 2005
The advantages of dc arc melting furnaces over ac furnaces in the production of high-quality refractories and conducting and insulating materials are discussed.
S. M. Nekhamin, A. G. Lunin, M. M. Krutyanskii, A. K. Filippov   +3 more
openaire   +1 more source

Electric Arc Furnace

2016
In this chapter, electric steelmaking is introduced with a short review: share, raw materials, operation, typical equipment, off-gas treatment, emissions. Electric-based steelmaking enjoys a much comfortable position than integrated classical blast furnace—oxygen steelmaking facilities, regarding greenhouse emissions.
openaire   +1 more source

Electric Arc Furnace Slag Concrete

2016
The aim of this section is to comprehensively investigate the possibility of substituting natural aggregates with Black/Oxidizing Electric Arc Furnace (EAF) slag, at high replacement ratios, to produce structural concrete. The properties of the slag are described in detail, in terms of chemical composition, mineralogy, microstructure and physical ...
Pellegrino, Carlo, Faleschini, Flora
openaire   +1 more source

Interchangeable Hearth Arc Furnace

Review of Scientific Instruments, 1964
A laboratory arc furnace that can be used for making buttons and castings of special shapes is described. The furnace was constructed so that copper hearths of various configurations could be rapidly interchanged. Convenience of operation inside a glove box was one of the principal considerations in its design.
O. L. Kruger, J. L. Armstrong
openaire   +1 more source

Enhancement of Electric Arc Furnace Dust by Recycling to Electric Arc Furnace

Journal of Environmental Engineering, 2002
Electric arc furnace (EAF) dust is a hazardous waste product of the steelmaking industry with a high concentration of heavy metals, especially Zn and Pb. Existing treatment processes are industrially viable only when the zinc content is sufficiently high. In this research we present an industrial-scale process to enhance EAF dust by recycling it to the
Félix A. López, Aurora López-Delgado
openaire   +1 more source

Rocking indirect arc electric furnaces

Electrical Engineering, 1934
The electric furnace of the rocking type with indirect arc has been developed to the point where it may be used not only For the melting of nonferrous metals but also in the production of castings of various types of iron and steel. Accurate control of the process is possible.
openaire   +1 more source