A procedure for the manufacture of steels of improved suitability for the mechanization with lifting of chips. (Machine-translation by Google Translate, not legally binding)

摘要

A method for the manufacture of steel of improved aptitude for machining with shavings, characterized in that from a previous material of the desired steel, containing at least one alloy element, soluble in the liquid steel and improving the For machining with chip removal, an ingot is produced according to the electrical remelting procedure using slag, which consists of 10 to 40% Al2O3, in addition to alkaline earth metal oxides, preferably CaO in amounts between 0 and 40% and/or of CaF2 in quantities between 10 and 70%, as well as 10 to 50% of SiO2, with the proviso that, as there are oxides of alkaline earth metals, the minimum content in itself O2, amounts to 1.1 times the content of alkaline earth metal oxides and that the sum of the unavoidable impurities of the slag does not exceed the proportion of 10%. (Machine-translation by Google Translate, not legally binding)