Posted by mechlook info on June 30th, 2012 12:59 AM | 56 Comments Introduction
—Stainless steels are reknowned for their shining bright surfaces coupled with resistance to rust or stain in spite of moisture or the action of corrosive environments.
—Certain stainless steels are very hard. Others, possess unusual strength and can retain the same ...
Posted by mechlook info on June 30th, 2012 12:59 AM | 72 Comments —Spray-refining as a steel making process has been developed recently by the British Iron and Steel Research Association (BISRA).
—In this process, a stream of molten iron from a blast furnace falls through a ring of oxygen jets, which break it ...
Posted by mechlook info on June 30th, 2012 12:59 AM | 101 Comments History
—In 1878 Siemens made use of electric current for melting iron.
—The first direct electric arc steel making furnace was placed in operation by the French metallurgist, Paul Louis Toussaint Heroult in 1899.
—Initial arc furnaces were of low capacity (even less ...
Posted by mechlook info on June 30th, 2012 12:59 AM | 122 Comments Introduction
—The Kaldo process was developed in Sweden by Prof. Railing shortly after the introduction of the L-D process in Austria.
—Kaldo process differs from L-D process in the sense that
1. In Kaldo process the converter has its axis inclined at an ...
Posted by mechlook info on June 30th, 2012 12:59 AM | 106 Comments Introduction
—L-D process was used largely for the treatment of basic pig irons fairly low in phosphorus (0.25%), but recent development has enabled ordinary basic Bessemer pig iron with up to 2.0% phosphorus to be treated by a modified method known ...
Posted by mechlook info on June 30th, 2012 12:58 AM | 37 Comments In 1959, the American Iron and Steel Institute added a new category to the familiar processes of making steels — Open hearth, Electric and Bessemer—which had served for many years as a basis for its monthly statistical reports on steel ...
Posted by mechlook info on June 30th, 2012 12:58 AM | 46 Comments Concept
— Specific suggestions for the use of an oxygen-enriched blast were made as early as 1905 by a Belgian company but it was only in 1952 when industrial development of oxygen steel making took place.
(1) L-D Process was established in ...
