GB390236A - Improvements in and relating to metal compositions - Google Patents
Improvements in and relating to metal compositionsInfo
- Publication number
- GB390236A GB390236A GB30345/31A GB3034531A GB390236A GB 390236 A GB390236 A GB 390236A GB 30345/31 A GB30345/31 A GB 30345/31A GB 3034531 A GB3034531 A GB 3034531A GB 390236 A GB390236 A GB 390236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tantalum
- mixture
- graphite tube
- hydrogen furnace
- carbide
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/067—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds comprising a particular metallic binder
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Ceramic Products (AREA)
Abstract
Tantalum carbide is prepared by firing an intimate mixture of tantalum and carbon, e.g. gas coke, in a closed graphite tube in a hydrogen furnace. Specifications 319,698, [Class 1 (ii), Inorganic compounds, other than &c.], and 388,090 are referred to.ALSO:A hard metal composition consists of tantalum carbide particles cemented together by a mixture of cobalt and aluminium. The tantalum carbide is prepared by firing an intimate mixture of tantalum and carbon, e.g. gas coke, in a closed graphite tube in a hydrogen furnace. The carbide is mixed with about 13 per cent of a composition consisting of 90 parts of cobalt and 10 parts of aluminium, the mixture is pressed to shape, e.g. a tool bit, and sintered in a closed graphite tube in a hydrogen furnace at about 1300 DEG C. A bit, thus formed, may be copper brazed to a steel shank using a flux such as borax. Specifications 319,698, [Class 1 (ii), Inorganic compounds, other than &c.], and 388,090 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US390236XA | 1930-11-01 | 1930-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB390236A true GB390236A (en) | 1933-04-06 |
Family
ID=21903251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30345/31A Expired GB390236A (en) | 1930-11-01 | 1931-11-02 | Improvements in and relating to metal compositions |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB390236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3049753A (en) * | 1959-04-29 | 1962-08-21 | Engelhard Ind Inc | Spinnerette |
-
1931
- 1931-11-02 GB GB30345/31A patent/GB390236A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3049753A (en) * | 1959-04-29 | 1962-08-21 | Engelhard Ind Inc | Spinnerette |
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