Metallurgy of Tin

McGraw-Hill book Company, 1911 - 138 Seiten
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Seite 119 - and it is found that as long as the water-level in the vault is maintained, there is no danger of explosion. As it is absolutely impossible to prevent the leakage of so mobile and easily fusible a metal as tin, this water-vault seems to present the best method of dealing with the leakage and of
Seite 84 - They are built of well-puddled clay, and are 3 feet 6 inches in diameter, and have at the back four tuyere holes conducting the blast from primitive sheepskin bellows to the hearth. The tin is reduced by means of charcoal, and runs through a channel 2 feet 6 inches long and 4 inches broad into a
Seite 24 - tin is heated on the inclined bed of a furnace to a temperature but little above the melting point of tin; comparatively pure tin trickles down, and is received in a large basin or "float," in which it is kept in a molten state. The residue on the bed of the furnace consists of the difficultly fusible alloy of tin and iron known as
Seite 118 - fire-brick, and lasts for 120 to 150 charges. A special feature is the water-vault; the lower part of the furnace foundation below the ground line is built so as to form a water-tank extending the full length
Seite 6 - obtained, in a more or less pure condition, in smelting operations, in the crucibles or forehearths, or on the beds of furnaces, when it is known as "hardhead," it forms a pale to dark-gray, irregularly granular or crystalline, brittle,
Seite 76 - It may be thought that too much space has been devoted to these primitive Oriental processes, but it must not be forgotten that their importance is in reality
Seite 29 - and other Minerals, and is always smelted with a bituminous fire, which communicates a harsh, sulphureous, injurious quality to the Metal." The general appearance of these old castles may be gathered from Fig.

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