GB708525A - Improvements relating to the production of sintered hard metal materials - Google Patents
Improvements relating to the production of sintered hard metal materialsInfo
- Publication number
- GB708525A GB708525A GB29255/50A GB2925550A GB708525A GB 708525 A GB708525 A GB 708525A GB 29255/50 A GB29255/50 A GB 29255/50A GB 2925550 A GB2925550 A GB 2925550A GB 708525 A GB708525 A GB 708525A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbide
- tantalum
- primary mixed
- titanium
- mixed crystals
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
Sintered hard metal materials having a final carbide phase containing tungsten carbide, titanium carbide and tantalum carbide are produced by a process in which primary mixed crystals of titanium carbide and tantalum carbide are first formed and the tungsten carbide is subsequently added, the primary mixed crystals of titanium-tantalum carbides being produced by heating powdered mixtures of titanium carbide and ferro-tantalum and carbon, or equivalently, technical tantalum and carbon, with or without nickel or other metal of the iron group and, after extraction from said primary mixed crystals of excess iron and other impurities by chemical treatment, for instance with hydrochloric acid, mixing said primary mixed crystals in powdered form with tungsten carbide, or equivalently tungsten and carbon, to form therewith the final carbide phase, the resultant powdered metal being annealed, pressed and sintered in known fashion. The titanium carbide may be substituted at least in part by zirconium carbide or hafnium carbide and at least part of the tantalum carbide may be substituted by one or more of the carbides of niobium, vanadium, chromium and molybdenum, which carbides may be formed from the corresponding nitrides or oxides during the formation of the primary mixed crystal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT708525X | 1950-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB708525A true GB708525A (en) | 1954-05-05 |
Family
ID=3679619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29255/50A Expired GB708525A (en) | 1950-07-25 | 1950-11-29 | Improvements relating to the production of sintered hard metal materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB708525A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1231017B (en) * | 1956-06-19 | 1966-12-22 | Sandvikens Jernverks Ab | Sintered hard metal alloy for wear-resistant and at the same time tough cutting tools |
| US3490901A (en) * | 1966-10-24 | 1970-01-20 | Fujikoshi Kk | Method of producing a titanium carbide-containing hard metallic composition of high toughness |
| GB2116584A (en) * | 1982-03-11 | 1983-09-28 | Metallurg Inc | Sintered hardmetals |
| US4451292A (en) * | 1980-03-04 | 1984-05-29 | Hall Fred W | Sintered hardmetals |
| CN113737077A (en) * | 2021-09-06 | 2021-12-03 | 河源正信硬质合金有限公司 | Hard alloy with mixed crystal structure and preparation method thereof |
-
1950
- 1950-11-29 GB GB29255/50A patent/GB708525A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1231017B (en) * | 1956-06-19 | 1966-12-22 | Sandvikens Jernverks Ab | Sintered hard metal alloy for wear-resistant and at the same time tough cutting tools |
| US3490901A (en) * | 1966-10-24 | 1970-01-20 | Fujikoshi Kk | Method of producing a titanium carbide-containing hard metallic composition of high toughness |
| US4451292A (en) * | 1980-03-04 | 1984-05-29 | Hall Fred W | Sintered hardmetals |
| GB2116584A (en) * | 1982-03-11 | 1983-09-28 | Metallurg Inc | Sintered hardmetals |
| CN113737077A (en) * | 2021-09-06 | 2021-12-03 | 河源正信硬质合金有限公司 | Hard alloy with mixed crystal structure and preparation method thereof |
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