Henley's Twentieth Century Formulas, Recipes and Processes. Various
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Название: Henley's Twentieth Century Formulas, Recipes and Processes

Автор: Various

Издательство: Bookwire

Жанр: Языкознание

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isbn: 4057664126917

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СКАЧАТЬ yet become an article of general commerce. It will be sufficient to note these materials briefly, giving the composition of the most important.

      Nickel Bronze.

      —This is prepared by fusing together very highly purified nickel (99.5 per cent) with copper, tin, and zinc. A bronze is produced containing 20 per cent of nickel, light-colored and very hard.

      Bismuth Bronze.—

I II III IV
Copper 25.0 45.0 69.0 47.0
Nickel 24.0 32.5 10.0 30.9
Antimony 50.0
Bismuth 1.0 1.0 1.0 0.1
Tin 16.0 15.0 1.0
Zinc 21.5 20.0 21.0
Aluminum 1.0

      I is hard and very lustrous, suitable for lamp reflectors and axle bearings; II is hard, resonant, and not affected by sea water, for parts of ships, pipes, telegraph wires, and piano strings; III and IV are for cups, spoons, etc.

      Manganese Argentan.—

Copper52 to 50 parts
Nickel17 to 15 parts
Zinc5 to 10 parts
Manganese1 to 5 parts
Copper, with 15 per cent phosphorus.3 to 5 parts

      Readily cast for objects of art.

      Aphtite.—

Iron66 parts
Nickel23 parts
Tungsten4 parts
Copper5 parts

      Arguzoid.—

Copper55.78 parts
Zinc23.198 parts
Nickel13.406 parts
Tin4.035 parts
Lead3.544 parts

      Silver white, almost ductile, suited for artistic purposes. {71}

      Ferro-argentan.—

Copper70.0 parts
Nickel20.0 parts
Zinc5.5 parts
Cadmium4.5 parts

      Resembles silver; worked like German silver.

      Silver Bronze.

      —Manganese, 18 per cent; aluminum, 1.2 per cent; silicium, 5 per cent; zinc, 13 per cent; copper, 67.5 per cent. The electric resistance of silver bronze is greater than that of German silver, hence it ought to be highly suitable for rheostats.

      Instrument Alloys.

      —The following are suitable for physical and optical instruments, metallic mirrors, telescopes, etc.:

      I.—Copper, 62 parts; tin, 33 parts; lead, 5 parts.

      II.—Copper, 80; antimony, 11; lead, 9.

      III.—Copper, 10; tin, 10; antimony, 10; lead, 40.

      IV.—Copper, 30; tin, 50; silver, 2; arsenic, 1.

      V.—Copper, 66; tin, 33.

      VI.—Copper, 64; tin, 26.

      VII.—Steel, 90; nickel, 10.

      VIII.—Platinum, 60; copper, 40.

      IX.—Platinum, 45; steel, 55.

      X.—Platinum, 55; iron, 45.

      XI.—Platinum, 15; steel, 85.

      XII.—Platinum, 20; copper, 79; arsenic, 1.

      XIII.—Platinum, 62; iron, 28; gold, 10.

      XIV.—Gold, 48; zinc, 52.

      XV.—Steel, 50; rhodium, 50.

      XVI.—Platinum, 12; iridium, 88.

      XVII.—Copper, 89.5; tin, 8.5; zinc, 2.

      Lead Alloys.

      The following alloys, principally lead, are used for various purposes:

      Bibra Alloy.

      —This contains 8 parts of bismuth, 9 of tin, and 38 to 40 of lead.

      Metallic Coffins.

      —Tin, 40 parts; lead, 45 parts; copper, 15 parts.

      Plates For Engraving.

      —I.—Lead, 84 parts; antimony, 16 parts.

      II.—Lead, 86 parts; antimony, 14 parts.

      III.—Lead, 87 parts; antimony, 12 parts; copper, 1 part.

      IV.—Lead, 81 parts; antimony, 14 parts; tin, 5 parts.

      V.—Lead, 73 parts; antimony, 17 parts; zinc, 10 parts.

      VI.—Tin, 53 parts; lead, 43 parts; antimony, 4 parts.

      Hard lead is made of lead, 84 parts; antimony, 16 parts.

      Sheet Metal Alloy.—

Tin 35 parts
Lead 250 parts
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