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It is received for the bill of connection of fusion with it air, in which resultPig-iron, with the subsequent operations necessary for development of a steel turns out,
That has allowed to exclude expenses for repeated heating taken of the furnace
Pig-iron. Connection of these processes had for an object the further reduction of expenses
On fuel.
The increased manufacture of pig-iron and steel has demanded increase in manufacture of coal
And iron ore, and also expansion of a transport network as for giving of raw materials,
And for finished goods export. Even in territory of the melting enterprises
Transport networks of such capacity and complexity what did not know XVIII were necessary
Century.
The steam engine was a key to increase in manufacture of pig-iron and a steel and to
To decrease in costs on their manufacture as its power participated in extraction
Raw materials, in delivery by its water and a land, in job of furnaces. New furnaces to
Known degree have created demand for the production: of a steel and pig-iron built
Steam engines, railways, and from second half of XIX-th century and court. Up to second half of XIX-th century process of melt of the steel, demanding
Additions to pig-iron of small, carefully dosed out quantities of carbon, was
Slow and expensive, and manufacture was insignificant. Sir Henry Bessemer, Declared the plans in 1856, after several years of experiments,
The device which let out not only the cheapest steel, but also showed The most fascinating fireworks of industrial revolution.
The steel epoch became result of opening of Bessemer: the end XIX - the XX-th century beginning. In
The beginning of industrial revolution of the car were produced basically from a tree, with
Some pig-iron details and with very small strengthening steel
Designs. Replacement of a tree by pig-iron and a steel has led to term increase
Services, to increase of speed, accuracy and complexity of mechanisms. Steels
Possible the big vessels, the bridges reinforced by a steel skyscrapers, big Steam engines and set of all of the rest that appears more
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