US1385072A - Metal alloy and process of producing the same - Google Patents
Metal alloy and process of producing the same Download PDFInfo
- Publication number
- US1385072A US1385072A US347064A US34706419A US1385072A US 1385072 A US1385072 A US 1385072A US 347064 A US347064 A US 347064A US 34706419 A US34706419 A US 34706419A US 1385072 A US1385072 A US 1385072A
- Authority
- US
- United States
- Prior art keywords
- alloy
- producing
- same
- metal alloy
- tantalum
- 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
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
Definitions
- My invention is a new metal alloy having many valuable properties particularly adapted for use in laboratory apparatus and electrolytic cells and for use in the chemical electrical, and electro-chemical arts Where platinum is now commonly used.
- the invention also includes the process of producing the alloy.
- the metals are heated in an electric furnace in vacuum until they are freely fluid.
- the alloy is kept at a temperature to maintain it in a freely fluid condition for a substantial period of time, preferably about fifteen minutes.
- the temperature is then reduced until the alloy is in a less fluid condition and this temperature is maintained for a substantial period, preferably for about fifteen minutes.
- the alloy is then allowed to cool and is ready for use.
- l alloy has a melting point above 2,000 (3., and is highly resistant to the action of chemical agents. It is not attacked by hydrochloric acid, nitric acid, sulfuric acid, or cold hydrofluoric acid. It is resistant to the action of liquids and ases at even very high temperatures and oes not discolor at high temperatures when heated in air or other gases. It has a high tensile strength and is ductile and malleable.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
.l'ES B. GRENAGLE, 01F CATONSVILLE, ".M'YLAND, MSIGNOB TO THE RARE METALS REDUCTION COMPANY, 015 BALTIMORE, M
r: YLAND, A CURPORA- METAL 0'3? AND PROCESS @325 IEFDDUGHTG THE S.
Ito Drawing.
To all whom it may concern:
Be it known that T, J AMES B. GRENAGLE, a citizen of the United States, and resident of Catonsville, Maryland, have invented certain new and useful Improvements in Metal Alloys and Processes of Producing the Same, of which the following is a specification.
My invention is a new metal alloy having many valuable properties particularly adapted for use in laboratory apparatus and electrolytic cells and for use in the chemical electrical, and electro-chemical arts Where platinum is now commonly used.
The invention also includes the process of producing the alloy.
In the production of my alloy I employ molybdenum and tantalum, the former being preferably emplo ed in an amount ma terially in excess of t e tantalum. Particularly good results are obtained by emplo ing from sixty to ninety per cent. of moly denum and from forty to ten per cent. of tantalum. The metals must be substantially free from iron and preferably chemically pure. I prefer to employ the metals in my alloy in the proportions of approximately seventy-five arts by weight of molybdenum and twentyve parts by weight of tantalum.
In producing my alloy the metals are heated in an electric furnace in vacuum until they are freely fluid. The alloy is kept at a temperature to maintain it in a freely fluid condition for a substantial period of time, preferably about fifteen minutes. The temperature is then reduced until the alloy is in a less fluid condition and this temperature is maintained for a substantial period, preferably for about fifteen minutes. The purpose of reducing the temperature of the alloy and maintaining it at the lower temfipecification of Letters IPatent. Patented July 319, T921. .Jltpplication filed December at, 1919. Serial No. $497,064.
perature for a substantial period is to prevent the alloy from becoming crystallized or brittle when cool and to produce an alloy which is highly malleable and ductile.
The alloy is then allowed to cool and is ready for use.
I have found it advantageous to heat the metals in a crucible of zirconium cement produced by mixing powdered zirconium oxid with unslaked lime and water to form a plastic mass. This mixture is given the desired shape and is then subjected to a high telltfitil'atllrfi until it is hardened or baked.
l alloy has a melting point above 2,000 (3., and is highly resistant to the action of chemical agents. It is not attacked by hydrochloric acid, nitric acid, sulfuric acid, or cold hydrofluoric acid. It is resistant to the action of liquids and ases at even very high temperatures and oes not discolor at high temperatures when heated in air or other gases. It has a high tensile strength and is ductile and malleable.
While I have set forth the preferred pro portions it is to be understood that these proportions ma be materially varied without departing id om the spirit of my invention.
What I claim is:
1. An alloy containing 60 to 90% molybdenum and 4:0 to 10% tantalum.
2. The process of producing an alloy con tainingmolybdenum and tantalum which consists in heating the metals in vacuum until they are freely fluid, reducing the temperature of the alloy until it is semi-fluid and maintaining the alloy in a semiflui condition for a substantial period. I
In testimony whereof, I afiix my signature.
JAMES B. GRENAGLE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US347064A US1385072A (en) | 1919-12-24 | 1919-12-24 | Metal alloy and process of producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US347064A US1385072A (en) | 1919-12-24 | 1919-12-24 | Metal alloy and process of producing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US1385072A true US1385072A (en) | 1921-07-19 |
Family
ID=23362170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US347064A Expired - Lifetime US1385072A (en) | 1919-12-24 | 1919-12-24 | Metal alloy and process of producing the same |
Country Status (1)
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US (1) | US1385072A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2678270A (en) * | 1951-10-06 | 1954-05-11 | Climax Molybdenum Co | Molybdenum-tantalum alloys |
US2678272A (en) * | 1951-10-06 | 1954-05-11 | Climax Molybdenum Co | Molybdenum-columbium alloys |
-
1919
- 1919-12-24 US US347064A patent/US1385072A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2678270A (en) * | 1951-10-06 | 1954-05-11 | Climax Molybdenum Co | Molybdenum-tantalum alloys |
US2678272A (en) * | 1951-10-06 | 1954-05-11 | Climax Molybdenum Co | Molybdenum-columbium alloys |
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