A Treatise on Metallurgy: Comprising Mining, and General and Particular Metallurgical Operations, with a Description of Charcoal, Coke, and Anthracite Furnaces, Blast Machines ... Etc |
Contents
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A Treatise On Metallurgy: Comprising Mining, and General and Particular ... Frederick Overman No preview available - 2022 |
Common terms and phrases
absorb advantage alkaline alloy amount anthracite antimony arsenic ashes assay bismuth bituminous coal blast borax bottom brittle carbonic acid cast-iron cause cent charcoal charring clay coal cobalt coke color combine contains copper crucible cupel cylinder degree of heat diameter dissolved drift evaporation exposed feet fire fluid flux fresh air fuel furnace furnish fusible glass globule gold gray iron hearth hydrogen impure inches instances iron kind large quantity latter lead lime litharge loss machine manganese mass means melted metal mineral mines mixed motion muffle obtained operation oven oxide oxygen particles pipe piston platinum potash pounds present produced puddling furnaces pumps pure reducing flame removed represented in fig roasting rock salt saltpetre shaft shown in fig silex silver slag smelting soda steel strong substances sufficient sulphur sulphurets tellurium timber tion tuyere valve vein vertical volatile weight wood zinc
Popular passages
Page 720 - along with 3 parts of muriatic acid at 25° B. and 1 part of nitric acid at 40°. Thirty of these vessels are placed upon a sand-bath covered with a glazed dome with movable panes, which is surmounted by a ventilating chimney to carry the vapors out of the laboratory. Heat is applied for
Page 431 - one, or more, metals in the alloy, or the refractory nature of another. As a general rule, we may state that all the metals which form alkalies have a particular tendency to unite with those which form acids. Potassium combines readily with antimony and arsenic, more so than
Page 683 - Copper and lead unite only to a certain extent: 3 lead and 8 copper is ordinary pot metal. All the lead may be retained in this alloy, provided the object to be cast is not too thick. When the cast is heavy, or much lead is used, it is pressed out by the copper in cooling.
Page 432 - we obtain a mere mechanical mixture of metals in an alloy; this is always characterized by forming distinct crystals with one metal, between which the other is visible. When an alloy is formed, which contains equivalents, no such disconnected crystals are observed. An irregularly composed alloy is a mere mechanical mixture, like wax and fat, and never forms a uniform
Page 626 - to combine a definite proportion of zinc with the compound of nickel and copper previously prepared. In fusing the three metals together there is always a loss of zinc by volatilization, which may be lessened by placing it beneath the copper in the crucible. The best method is to