US2141054A - Copper alloy - Google Patents
Copper alloy Download PDFInfo
- Publication number
- US2141054A US2141054A US72097A US7209736A US2141054A US 2141054 A US2141054 A US 2141054A US 72097 A US72097 A US 72097A US 7209736 A US7209736 A US 7209736A US 2141054 A US2141054 A US 2141054A
- Authority
- US
- United States
- Prior art keywords
- copper
- zinc
- alloy
- copper alloy
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
- C22C9/04—Alloys based on copper with zinc as the next major constituent
Definitions
- This invention relates to copper alloys and processes for their production, and relates further to the hardening of metals and alloys.
- Another object is to scalloy zinc or tin and zinc with copper as to assure a high degree of hardness for the alloy, while "avoiding brittleness.
- copper in any desired amount is first melted in a suitable crucible sufilcient borax being preferably added, when the metal has reached a red heat, to' promote fusion.
- a suitable crucible sufilcient borax being preferably added, when the metal has reached a red heat, to' promote fusion.
- the copper is reduced to molten form; there is added a quantity of arsenious oxide approximating three percent by weight of the copper, and there is then immediately added zinc, preferably in molten form, and in a quantity approximating five per cent by weight of the copper.
- the molten metal is vigorously stirred, since otherwise the zinc will float upon the copper,
- phos-- phorus is to be an ingredient, it is now added in an amount approximating one per cent by weight of the copper, preferably in a red amorphous form and sealed within a suitable copper capsule or capsules. Vigorous stirring or other agitation of the molten mass is necessary to assure uniform absorption of the phosphorus. The effect of adding phosphorus, as described, is to increase the hardness of the resulting alloy.
- the described process may be modified to impart increased ductility to the resulting alloy by omitting phosphorus, and adding sodium car- 5 bonate or potassium chloride after the arsenic compound has been introduced, in a quantity approximating two per cent by weight of the copper, or both of said salts may. be employed, each in a quantity approximating two per cent by weight of the copper.
- the initially described process may be still 15 further modified by adding five parts (by weight) of'tin as soon as the copper is reduced to molten form, omitting the step of adding phosphorus.
- the copper preferably constitutes parts (by weight) of the alloy.
- the 20 resulting alloy is somewhat less' hard than is produced by the first modification of the process.
- the electrical conductivity, heat conductivity, and melting points of any of the herein described alloys adapt them for, very satisfactory use as 25 welding electrodes.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Arc Welding In General (AREA)
Description
Patented Dec. 20, 1938 UNITED sr COPPER. ALLOY No Drawing. Application April 11, 19st, Serial No. 72,09?
1 Claim.
This invention relates to copper alloys and processes for their production, and relates further to the hardening of metals and alloys.
In forming alloys from metals differing mate- 5 rially as to their boiling or vaporization points, precautions must generally be exercised to avoid excessive loss of the more volatile metals. In alloying metals 'such as copper and zinc, the
' latter of which vaporizes at a temperature below the melting point of the former, especial skill is required, and a particular problem is presented when the percentage of relatively volatile metal or metals is small.
It is an object of the invention to alloy copper with a small percentage of zinc or zinc and tin, by a process avoiding material vaporization loss.
Another object is to scalloy zinc or tin and zinc with copper as to assure a high degree of hardness for the alloy, while "avoiding brittleness.
In practicing the improved process, copper in any desired amount is first melted in a suitable crucible sufilcient borax being preferably added, when the metal has reached a red heat, to' promote fusion. when. the copper is reduced to molten form; there is added a quantity of arsenious oxide approximating three percent by weight of the copper, and there is then immediately added zinc, preferably in molten form, and in a quantity approximating five per cent by weight of the copper. During the addition .of the zinc, the molten metal is vigorously stirred, since otherwise the zinc will float upon the copper,
and homogeneity will not be attained. Ifphos-- phorus is to be an ingredient, it is now added in an amount approximating one per cent by weight of the copper, preferably in a red amorphous form and sealed within a suitable copper capsule or capsules. Vigorous stirring or other agitation of the molten mass is necessary to assure uniform absorption of the phosphorus. The effect of adding phosphorus, as described, is to increase the hardness of the resulting alloy.
The described process may be modified to impart increased ductility to the resulting alloy by omitting phosphorus, and adding sodium car- 5 bonate or potassium chloride after the arsenic compound has been introduced, in a quantity approximating two per cent by weight of the copper, or both of said salts may. be employed, each in a quantity approximating two per cent by weight of the copper. The best results 'are' obtainable by allowing an interval of a few minutes to elapse between the addition of; the arsenic compound and that of the other salt or salts.
The initially described process may be still 15 further modified by adding five parts (by weight) of'tin as soon as the copper is reduced to molten form, omitting the step of adding phosphorus. In this modification, the copper preferably constitutes parts (by weight) of the alloy. The 20 resulting alloy is somewhat less' hard than is produced by the first modification of the process. The electrical conductivity, heat conductivity, and melting points of any of the herein described alloys adapt them for, very satisfactory use as 25 welding electrodes.
What I claim is: w A copper alloy consisting substantially of the following elements in approximately the propor- PERSAK TOOKOUSIAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72097A US2141054A (en) | 1936-04-01 | 1936-04-01 | Copper alloy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US72097A US2141054A (en) | 1936-04-01 | 1936-04-01 | Copper alloy |
Publications (1)
Publication Number | Publication Date |
---|---|
US2141054A true US2141054A (en) | 1938-12-20 |
Family
ID=22105540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US72097A Expired - Lifetime US2141054A (en) | 1936-04-01 | 1936-04-01 | Copper alloy |
Country Status (1)
Country | Link |
---|---|
US (1) | US2141054A (en) |
-
1936
- 1936-04-01 US US72097A patent/US2141054A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2253502A (en) | Malleable iron | |
US2141054A (en) | Copper alloy | |
US1880614A (en) | Magnesium alloy | |
US2578098A (en) | Aluminum base alloy | |
US2085697A (en) | Method for treating aluminum and aluminum alloys | |
US2066512A (en) | Alloy | |
US2261906A (en) | Method of alloying magnesium with manganese | |
US2261905A (en) | Method of alloying magnesium with manganese | |
US2224151A (en) | Magnesium alloys | |
US2747991A (en) | Magnesium-base alloys | |
US2604394A (en) | Magnesium base alloys | |
US1981798A (en) | Composition of matter for treating aluminum alloys | |
US2452894A (en) | Process for producing magnesiumzirconium alloys | |
US1745721A (en) | Bearing metal | |
US1916496A (en) | Method of making lead alloys | |
US2098081A (en) | Aluminum alloy | |
US2051963A (en) | Method for treating beryllium and its alloys | |
US2752242A (en) | Copper-nickel-titanium alloy and process for making same | |
US1717469A (en) | Bearing metal and method of making same | |
US1731212A (en) | Gold alloy | |
US2464925A (en) | Welding flux | |
US1306070A (en) | Process oe making compounds op the rare metals | |
US1626925A (en) | Alloy | |
US3071461A (en) | Production of titanium-base alloy | |
US1307642A (en) | Method of making copper-cadmium alloy |