The Manufacture of Steel: Containing the Practice and Principles of Working and Making Steel : a Hand-book for Blacksmiths and Workers in Steel and Iron ... and for Men of Science and Art

Cover
Moss & Bros., 1854 - 226 Seiten
 

Andere Ausgaben - Alle anzeigen

Häufige Begriffe und Wortgruppen

Beliebte Passagen

Seite 110 - ... inches in length, and from one and a half to two and a half inches in breadth.
Seite i - OVERMAN.— The Manufacture of Steel : Containing the Practice and Principles of Working and Making Steel. A Handbook for Blacksmiths and Workers, in Steel and Iron, Wagon Makers, Die Sinkers, Cutlers, and Manufacturers of Files and Hardware, of Steel and Iron, and for Men of Science and Art. By FREDERICK OVERMAN, Mining Engineer, Author of the " Manufacture of Iron,
Seite xi - ... present time. Steel is a superior metal for most purposes where metals are used, and its manufacture cannot be too much cultivated. A principal obstacle to its more general introduction is its high price ; to effect a reduction in which, has been the aim of the author of this work. We compare favourably in most branches of manufacture, and indeed eclipse other nations, except in the manufacture of steel. Yet we have materials in abundance, and of excellent quality for the purpose; and it needs...
Seite 64 - ... the degree of cold of the cooling fluid, and the manner in which the cooling is performed. Steel must be heated to a certain degree, to assume its greatest hardness ; if heated below that point, it will not become hard, no matter what kind of cooling fluid we employ, or in what manner we refrigerate.
Seite 219 - If hot steel is thrown to the bottom of a vessel of cold water, it does not assume a high degree of hardness ; but if a rapid motion is given to it, it speedily becomes hard, and the hardness increases with the rapidity of the motion.
Seite 15 - The first-named is the lowest heat ; it is not visible in daylight, but shines in the dark with a brown colour.
Seite 153 - ... so as to unite the bars together, and close up every internal flaw and fissure. In the first...
Seite 219 - If the steel is hotter and the water colder, the steel will assume a higher degree of hardness, or become brittle. By the same degree of heat in the steel, water with ice or snow in it will make the steel harder than water of 70° or 100°, which is generally used in the blacksmith's shop.
Seite 33 - When damp, slack coal is thrown on the fire, in a layer of two or three inches thick, it will cake together, and, after the loose coal below it is burnt...
Seite 32 - Open fires, like those of charcoal and anthracite, are not well adapted for heating steel, because a great deal of air passes through them unburnt, which, in passing over the hot steel, deprives it, to some extent, of its carbon.

Bibliografische Informationen