GB514035A - Improvements in or relating to methods of preparing hard compositions of matter containing metallic carbides - Google Patents
Improvements in or relating to methods of preparing hard compositions of matter containing metallic carbidesInfo
- Publication number
- GB514035A GB514035A GB35449/38A GB3544938A GB514035A GB 514035 A GB514035 A GB 514035A GB 35449/38 A GB35449/38 A GB 35449/38A GB 3544938 A GB3544938 A GB 3544938A GB 514035 A GB514035 A GB 514035A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbide
- binder
- tungsten
- dec
- naphtha
- 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
- C22C1/053—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor with in situ formation of hard compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
514,035. Hard carbide alloys. McKENNA, P. M. Dec. 5, 1938, No. 35449. Convention date, Dec. 13, 1937. [Class 82 (i)] [Also in Group V] A mixture of finely comminuted hard carbide material and a metalliferous binder is heated under reduced pressure in the presence of magnesium to a temperature sufficient to cause the binder to flow. The hard carbide may be the double carbide of tungsten and titanium prepared as in Specification 514,033, [Group III], with, if desired, tantalum carbide, or niobium carbide or multicarbides, and the binder may be cobalt or nickel, if desired, with tungsten or molybdenum, the two latter metals being carburized or having carbon with them. The carbide and binder metal are ground separately or together in naphtha and surplus naphtha evaporated until about 1-2 per cent. remains to assist in moulding. The moulded material and some magnesium metal is then heated by stages to 1450C. in an evacuated electric induction furnace. The material is suitable for cutting tools, specific mixtures for machining various metals being given. Specification 514,034 also is referred to. -
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US514035XA | 1937-12-13 | 1937-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB514035A true GB514035A (en) | 1939-10-27 |
Family
ID=21971091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB35449/38A Expired GB514035A (en) | 1937-12-13 | 1938-12-05 | Improvements in or relating to methods of preparing hard compositions of matter containing metallic carbides |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB514035A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3143413A (en) * | 1960-06-03 | 1964-08-04 | Siegfried G Krapf | Ceramic materials and methods for their manufacture |
-
1938
- 1938-12-05 GB GB35449/38A patent/GB514035A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3143413A (en) * | 1960-06-03 | 1964-08-04 | Siegfried G Krapf | Ceramic materials and methods for their manufacture |
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