Iron as a material of constructionE. & F.N. Spon, 1872 - 181 Seiten |
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Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
bar iron blast furnace breaking weight brittle called carbon cast iron cent cinder cold compressive strength crystalline crystals cylinders different kinds ductile iron ductility Eaton Hodgkinson engineer experimenters experiments extension force forge foundry fracture give grey hammering hardness heat hematite Hodgkinson hot blast hot-blast inch square increased Iron Structure iron to resist kind of strength kinds of iron length limit of elasticity load malleable iron manufacture material mechanical properties metal mixtures modulus of elasticity obtained oxide permanent set pig iron plates portions practical produced properties of iron proportion puddled iron puddling furnace quality of iron resist crushing resist rupture rolling samples second melting shape slag soft specific gravity specimens square inch Staffordshire steel stiffness strain strength of cast strength of iron strength to resist Styffe tenacity tensile strength tested tons per square transverse strength Tredgold tried variety vary welding Woolwich wrought iron
Beliebte Passagen
Seite 153 - From these experiments the translator is led to draw the following conclusions : — 1. That for such iron as is usually employed for rails in the three principal rail-making countries (Wales, France, and Belgium), the breaking strain, as tested by sudden blows or shocks, is considerably influenced by cold ; such iron exhibiting at 10° F. only from onethird to one-fourth of the strength which it possesses at 84° F.
Seite 22 - ... possess greater interest. The influence of this element in causing variation in the physical properties of iron is one of the most extraordinary phenomena in the whole range of metallurgy. Under the common name of iron are included virtually distinct metals, which in external characters differ far more from each other than many chemically distinct metals. Without carbon the manifold uses of iron would be greatly restricted ; and, so far as is yet known, no other metal or mixtures of metals coidd...
Seite 152 - Fahr. it is generally diminished, not to any great extent, indeed, in steel, but considerably in iron." 4. " That the limit of elasticity in both steel and iron lies higher in severe cold ; but that at about 284° Fahr. it is lower, at least in iron, than at the ordinary temperature.
Seite 22 - ... shall learn hereafter, other elements may and often do concur in modifying, in a striking degree, the qualities of this wonderful metal. Ours is emphatically the iron age ; and it may be confidently asserted that no other element has contributed so largely to the civilization and happiness, and, may we not also add, paradoxical as it may seem, to the misery of mankind. But let us not forget that carbon has done its share in this good and evil work.