The Materials of Engineering: Non-ferrous metals and alloys: copper; tin; zinc; etc.; brass; bronze; etc. 1884Wiley, 1884 |
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Common terms and phrases
acid alloys containing alloys of copper annealed antimony Babbitt metal bismuth brass Breaking load brittle broke bronze cast copper cent chemical color composition COMPOSITION.-Original mixture compression copper and tin copper-tin alloys curve deflection density diameter distortion ductility elastic limit elongation engineer exhibited factor of safety figures flux fractured section furnace fused fusible fusion given gold gun-bronze hard inches from fracture increase ingot kilogs lead length less LOAD PER SQUARE malleable manganese MANGANESE BRONZE material maximum melted method millimetres MODULUS OF ELASTICITY Modulus of rupture mould Muntz metal nearly nickel obtained ordnance oxide phosphor-bronze piece Platinum pounds per square produced proportion pure copper reduced resilience Resistance decreased reverberatory furnace rolled sheet silver soft solder specific gravity square inch steel strain strain-diagram strength stress surface TABLE temperature Tenacity per square tensile Tensile stress tion tombac torsional usually wire yellow zinc ΙΟ
Popular passages
Page 481 - Thus, the reduction of the value of the modulus between the melting point of ice and the boiling point of water is...
Page 119 - Alloys in which there is an excess of equivalents of the worse conducting metal over the number of equivalents of the better conductor, such as alloys composed of...
Page 106 - ... gravity, and its own rate of expansion or contraction; while, on the contrary, the alloys of tin and zinc are mixtures ; for they conduct heat, have a specific gravity and expand according to theory, or according to the proportions of tin and zinc which compose each alloy. Calvert and Johnson's conclusions are chiefly based upon their experiments on the heat conductivity of the alloys. Later experiments, made by Matthiessen,t on the conducting power for electricity, led him to different conclusions.
Page 105 - Soc., vol. 5, 1867, pp. 201-230. remains a wide difference of opinion in regard to it. Most writers now agree, however, in considering some alloys as chemical compounds and others as mixtures, but they differ as to whether any particular alloy is the one or the other. Thus Calvert and Johnson * consider the tin-copper alloys definite compounds, while Matthiessenf claims that they are " solidified solutions of one metal in the allotropie modification of the other.
Page 121 - Matthiessen t has shown that small traces of the metals, and especially of the metalloids, reduce the conductivity of copper to a great extent. He states, also, that there is no alloy of copper which conducts electricity better than pure copper...
Page 478 - No. 2, 825 pounds, 16 per cent.; No. 3, 525 pounds, 21 per cent.; No. 4, 485 pounds, 26 per cent, and No. 5, 560 pounds, 20 per cent. As the heat increases a gradual loss in strength and ductility occurs, up to a certain temperature, at which, within a few degrees, a great change takes place, the strength falls to about one half the original, and the ductility is wholly gone. Thus in alloy No. I, at 400° F.
Page 238 - BRONZING LIQUIDS. To be used for Brass by simple Immersion. In the preparation of No. 5, the liquid must be brought to boil and cooled. In using No. 13, the heat of the liquid must not be under 180° F. No. 6 is slow in action, taking an hour to produce good results. The action of the others is. for the most part, immediate. * Brass Founders
Page 506 - No. 599; it is a member of the " tin class," however, and it is seen, by examining their records and strain-diagrams, that these specimens, tested under radically different conditions, both illustrate the peculiar characteristics of the class, by similarly exhibiting its treacherous nature. No. 504 was a bar of tin containing about...
Page 123 - В belong bismuth, mercury, antimony, platinum, palladium, iron, aluminum, gold, copper, silver, and in all probability most of the other metals. CRYSTALLIZATION. The crystallization of alloys exhibits some curious phenomena. It was formerly supposed that if a distinct crystal of an alloy were found, it would have a definite chemical composition, and would show that the alloy was not a mixture, but a veritable chemical compound. In 1854, however, Prof.
Page 125 - Hydrochloric acid of 1.05 specific gravity was found to be completely inactive on all alloys of copper and zinc containing an excess of copper, and especially on the alloy containing equivalent proportions of each metal. Zinc was found to have an extraordinary preventive influence on the action of strong sulphuric acid on copper.