Record Display for the EPA National Library Catalog


Main Title Metallurgical Upgrading of Automotive Scrap Steel.
Author Carlso, O. N. ; Schmid, F. A. ;
CORP Author Ames Lab., Iowa.
Year Published 1973
Report Number EPA-R-801303; 670/2-73-091;
Stock Number PB-223 740
Additional Subjects ( Metal scrap ; Melting) ; ( Steels ; Metal scrap) ; Waste disposal ; Arc melting ; Vacuum melting ; Induction melting ; Upgrading ; Purification ; Casting ; Copper ; Chromium ; Tin ; Carbon ; Stainless steels ; Aluminum ; Nickel ; Mechanical properties ; Slags ; Materials recovery ; Electroslag remelting ; Solid waste disposal ; Waste recycling
Library Call Number Additional Info Location Last
NTIS  PB-223 740 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 101p
Several melting and casting techniques that have been successfully used for purifying refractory metals were evaluated as methods of upgrading automotive scrap steel. These methods included (1) nonconsumable electrode arc melting, (2) electron beam melting, (3) vacuum arc melting, (4) vacuum induction melting, and (5) electroslag remelting. The removal of copper, chromium, and tin from the scrap was of primary interest because these impurity elements are not removed during the steelmaking process but are known to adversely affect the mechanical properties of steel. The optimum conditions for impurity removal by the melting techniques were determined using simulated auto scrap in small-scale melting experiments. Once these conditions were established, they were used to melt actual auto scrap obtained from a commercial source. Evaluation of the processed material was made by chemical analysis, metallographic examination, and mechanical property measurements. (Author)