Abstract It is important to clarify the behavior of elements in reaction between molten CaO–SiO 2 –Fe t O–Al O 3 slag and liquid metal during remelting Cu scrap. To estimate desirable composition for retaining Sn metal, effects basicity concentrations Fe Al on SnO activity coefficient were investigated. Molten (with optional addition) was reacted with Pb–Sn alloy a pure crucible at 1573 K 5 h w...

The current study examines the effect of magnetic flux density (MFD) on morphology metal pool and refinement eutectic carbides in controlled electroslag remelting (MC-ESR, M2 high speed steel). When a transverse static field (TSMF) with larger MFD was used, it easier to obtain shallower finer carbides. These phenomena are explained by smashing droplet neck (stronger at higher values) induced el...

Abstract The copper production in the Alps began three thousand years BC, usually near ore deposits Austria and Switzerland. For smelting, sulphidic ores like chalcopyrite fahlores were used. Copper produced from was widely used resulting As Sb contents metallic copper. Such alloys generally referred to as arsenical bronzes. However, ancient bronze objects, a wide range of arsenic content obser...

The present paper introduces the steel production and BOF slag processing techniques in Steelmaking Sector of Bayuquan Iron and Steel Subsidiary, Ansteel. The technology of slag tailings utilization has been developed under the consideration of the properties of slag tailing and the characteristics of slag forming in BOF steelmaking operation practice. The processing of the BOF slag includes ho...

In order to clarify the mechanism for increase in oxygen content during electroslag remelting, this paper analyzes detail effect of slag components on gas and number, size composition inclusions ingots. The results show that, when CaF2-MgF2-CaO-MgO-SiO2 system is used ingots decreases clearly with basicity. When basicity 14~3.3, only 9~11 ppm. drops 2.3, increases 20 high also leads a decrease ...

The present paper investigated the process of the slag wool fabrication using high temperature blast furnace (BF) slag modified by coal ash (CA). The liquidus temperature and viscosity of the slag system with different mass ratios of BF slag and CA were measured through an inner cylinder rotation method. The approximate mass ratio used to fabricate the slag wool was therefore determined and sla...

Ground granulated blast furnace slag is widely used as a mineral admixture to replace partial Portland cement in the concrete industry. As the amount of slag increases, the late-age compressive strength of concrete mixtures increases. However, after an optimum point, any further increase in slag does not improve the late-age compressive strength. This optimum replacement ratio of slag is a cruc...