GB412099A - Improvements in or relating to the manufacture of sintered hard alloys - Google Patents
Improvements in or relating to the manufacture of sintered hard alloysInfo
- Publication number
- GB412099A GB412099A GB30834/33A GB3083433A GB412099A GB 412099 A GB412099 A GB 412099A GB 30834/33 A GB30834/33 A GB 30834/33A GB 3083433 A GB3083433 A GB 3083433A GB 412099 A GB412099 A GB 412099A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- sintering
- hard alloys
- vacuum
- borides
- 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
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
Abstract
Iron, nickel, or cobalt borides are prepared by mixing amorphous boron and the metal in stoichiometric proportions and sintering the mixtures in a vacuum at 800--1300 DEG C.ALSO:Sintered hard alloys are produced from a powdered mixture comprising tungsten carbide and up to 25 per cent of a boride of iron nickel or cobalt, the mixture being sintered at a high temperature, e.g. 1350-1400 DEG C. for the time mecessary for the production of the alloy. The mixture may be shaped under pressure, preferably at a high temperature, e.g. 1400 DEG C., and the sintering may be carried out in an atmosphere of hydrogen. The borides are produced by mixing amorphous boron and the metal in stoichometric proportions and sintering the mixture in a vacuum at 800-1300 DEG C. The Specification as open to inspection under Sect. 91 states that up to 30 per cent of the tungsten carbide may be replaced by titanium, tantalum, niobium, vanadium, zirconium, hafnium or molybdenum carbides. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH412099X | 1932-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB412099A true GB412099A (en) | 1934-06-21 |
Family
ID=4514470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30834/33A Expired GB412099A (en) | 1932-11-24 | 1933-11-06 | Improvements in or relating to the manufacture of sintered hard alloys |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB412099A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE968986C (en) * | 1951-09-19 | 1958-04-17 | Deutsche Edelstahlwerke Ag | Welding rod |
DE972437C (en) * | 1951-09-19 | 1959-07-23 | Deutsche Edelstahlwerke Ag | Powder mixture for applying hard metal to carrier materials and processing methods |
DE973182C (en) * | 1952-04-04 | 1959-12-17 | Deutsche Edelstahlwerke Ag | Use of a powder mixture according to patent 972437 as a means for applying hard metal to saw blades for working stone and a method for producing such saw blades |
CN115572877A (en) * | 2022-10-08 | 2023-01-06 | 郑州大学 | Preparation method of molybdenum niobium or molybdenum tantalum alloy |
-
1933
- 1933-11-06 GB GB30834/33A patent/GB412099A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE968986C (en) * | 1951-09-19 | 1958-04-17 | Deutsche Edelstahlwerke Ag | Welding rod |
DE972437C (en) * | 1951-09-19 | 1959-07-23 | Deutsche Edelstahlwerke Ag | Powder mixture for applying hard metal to carrier materials and processing methods |
DE973182C (en) * | 1952-04-04 | 1959-12-17 | Deutsche Edelstahlwerke Ag | Use of a powder mixture according to patent 972437 as a means for applying hard metal to saw blades for working stone and a method for producing such saw blades |
CN115572877A (en) * | 2022-10-08 | 2023-01-06 | 郑州大学 | Preparation method of molybdenum niobium or molybdenum tantalum alloy |
CN115572877B (en) * | 2022-10-08 | 2023-06-09 | 郑州大学 | Preparation method of molybdenum-niobium or molybdenum-tantalum alloy |
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