DE273978C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

- JVl 273978 CLASS 40 h. GROUP \. ^ -

. JOHN COUP and ELI ALLBAUGH in CLYDE, Ohio, V. St. A.

Metal alloy. Patented in the German Empire on August 30, 1913.

The invention relates to an immutable metal alloy used as a substitute used for nickel plating and in the manufacture of all kinds of objects can be used.

Another feature of the invention can be seen in the production of a metal alloy which has great strength and durability and can be prepared cheaply.
To achieve these effects, the individual mineral constituents must be mixed with one another and treated in the manner described in more detail below.

The components of the new alloy are as follows:

Copper 69.13 parts

Nickel 14.81

Zinc 8.64 -

Aluminum .... 3.70
Phosphorus tin ... 3.08

Lead 0.58 -

Iron 0.06 -.

When making the alloy, the copper, iron and nickel are first combined into one Melting crucible and placed in a furnace. These ingredients are then on heated to about 1680 ° C., whereby it liquefies will. Now the zinc is added in small amounts after the heat has gone so far 35

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is reduced that the zinc can no longer burn when added to the molten mass. After these ingredients have been thoroughly mixed, the lead is added. The heat is now further reduced and immediately before the crucible is removed the phosphorus tin is then added to the mixture. During the manufacture of the alloy the mass is kept well covered with charcoal. After removing the crucible from the furnace, the dross is removed from skimmed off the surface of the mixture and added the aluminum. The aluminum acts as a reducing agent for the other components.

The metal alloy produced in the manner described above is suitable for general commercial use. When used in the manufacture of cast objects dry sand is used in the mold, and during the pouring of the metal all windows, doors and others are removed Openings closed to prevent tension and thus oxidation of the metal to be quickly poured out while it is in Incandescent is located. The phosphor tin is the basis of the new alloy; will however use the connection for the manufacture of knives or other objects

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■ det that are punched out or cut out, thus the amount of tin is increased and the amount of phosphorus is decreased. The opposite is true when using the connection for the manufacture of items that require rolling the tin considerably diminished and in some cases omitted entirely. The use of the phosphorus tin has the production of a metal alloy result, which is elastic and at the same time extremely strong and durable. This is achieved through the union of the different mineral components in the manner described above is product completely non-corrosive and can be rolled and drawn into sheets. The metal can be used in the manufacture of the most diverse objects of cutlery, for tableware finishing, for automobile parts, soda containers, as metal packaging and for many other purposes are used. If the alloy is subjected to a test, it shows prove to have a tensile strength of 10 to 15,000 kg per square centimeter and a torsional strength of about 22,000 kg. The fact that the alloy is non-corrosive makes it particularly useful for manufacture suitable for bells, piano strings and other musical instruments for which it is important that the sound quality remains unchanged. The alloy also forms one very satisfactory replacement for nickel plating and can be about the same cost are made like a good quality brass ..

From the foregoing should be the mode of manufacture of the alloy and its various Advantages are clearly understandable. The proportions of the individual components given above must be carefully observed as it has been found that adhering to them produces the best results in use of the alloy for commercial purposes.

Claims (1)

Patent claim: Metal alloy, consisting of 69.13 percent Copper, 14.81 percent nickel, 8.64 percent zinc, 0.58 percent lead, o, o6 percent Iron, 3.08 percent phosphorus tin and 3.70 percent aluminum.