GB667219A - Improvements in or relating to the manufacture of moulds and moulded articles - Google Patents
Improvements in or relating to the manufacture of moulds and moulded articlesInfo
- Publication number
- GB667219A GB667219A GB2354649A GB2354649A GB667219A GB 667219 A GB667219 A GB 667219A GB 2354649 A GB2354649 A GB 2354649A GB 2354649 A GB2354649 A GB 2354649A GB 667219 A GB667219 A GB 667219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mould
- sintered
- powder
- pressure
- titanium 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
667,219. Powder metallurgy; making dies and turbine blades. PENRICE, T. W., and KNOWLSON, R. F. Aug. 30, 1950 [Sept. 12, 1949], No. 23546/49. Classes 83 (ii) and 83 (iv). [Also in Group V] In a method of making articles from metal powders a mould is first prepared by impressing a master shape in a powder-mass comprising a refractory metal, carbide, nitride or boride, or other powder capable of being sintered, partially sintering the mass by heat and pressure and removing the master shape. Metal powder is then introduced into the mould and compressed and sintered at such a pressure and temperature as to cause no further compacting of the mould. Any mould material adhering to the sintered article may be removed as by shot blasting. In an example, a master shape made from compressed carbon is impressed into a mass of titanium carbide powder by the application of pressure at a temperature of between 1600- 2000‹ C., a partially sintered mould being obtained. This mould is filled with a mixture of tungsten carbide and cobalt powders which is compacted at the same pressure as that used for shaping the mould and sintered at a lower temperature of 1350-1450‹ C. A five-grain titanium carbide powder could be sintered in a mould of coarser titanium carbide using a lower sintering temperature of 1450-1600‹ C. As applied to the making of a turbine blade, a mould is formed by a graphite pattern from titanium carbide powder using a pressure of three tons per square inch and a temperature of 2000‹ C. Powder consisting of titanium carbide containing 20 per cent by weight of cobalt was introduced into the mould and sintered at 1450‹ C. under a pressure of three tons per square inch. The mould was then removed by mechanical abrasion. The titanium carbide could be replaced by the metal itself or by its nitride, boride or oxide or mixtures thereof.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2354649A GB667219A (en) | 1949-09-12 | 1949-09-12 | Improvements in or relating to the manufacture of moulds and moulded articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2354649A GB667219A (en) | 1949-09-12 | 1949-09-12 | Improvements in or relating to the manufacture of moulds and moulded articles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB667219A true GB667219A (en) | 1952-02-27 |
Family
ID=10197403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2354649A Expired GB667219A (en) | 1949-09-12 | 1949-09-12 | Improvements in or relating to the manufacture of moulds and moulded articles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB667219A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1282868B (en) * | 1954-04-05 | 1968-11-14 | Licentia Gmbh | Powder metallurgical process for the production of casting and compression molds |
WO2004053197A2 (en) * | 2002-12-06 | 2004-06-24 | Ikonics Corporation | Metal engraving method, article, and apparatus |
-
1949
- 1949-09-12 GB GB2354649A patent/GB667219A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1282868B (en) * | 1954-04-05 | 1968-11-14 | Licentia Gmbh | Powder metallurgical process for the production of casting and compression molds |
WO2004053197A2 (en) * | 2002-12-06 | 2004-06-24 | Ikonics Corporation | Metal engraving method, article, and apparatus |
WO2004053197A3 (en) * | 2002-12-06 | 2004-10-28 | Ikonics Corp | Metal engraving method, article, and apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4595663A (en) | Sintered ceramic shaped article wholly or predominantly of eutectic microstructure constituents | |
US3455682A (en) | Isostatic hot pressing of refractory bodies | |
CN108705086A (en) | A kind of method that the printing of 3D gels prepares steel bonded carbide | |
ATE240176T1 (en) | POWDER METAL INJECTION MOLDING PROCESS FOR SHAPING AN OBJECT FROM THE NICKEL-BASED SUPER ALLOY ßHASTELLOY Xß | |
JPS6221060B2 (en) | ||
US3158473A (en) | Method for producing composite bodies | |
ATE77776T1 (en) | PROCESS FOR PRODUCTION OF METALLIC PRODUCTS FROM POWDER BY HOT ISOSTATIC PRESSURE USING CERAMIC CORE. | |
US4609527A (en) | Powder consolidation and machining | |
US3717694A (en) | Hot pressing a refractory article of complex shape in a mold of simple shape | |
US3632708A (en) | Use of expanded anisotropic graphite as multi-cavity mold for hot pressing | |
GB667219A (en) | Improvements in or relating to the manufacture of moulds and moulded articles | |
US4225546A (en) | Method of compacting dry powder into shapes | |
EP0435672B1 (en) | Method for forming a high density metal boride composite | |
GB1219065A (en) | Process for manufacturing high density press-formed articles | |
US2902363A (en) | Method of treating powdered metal | |
US4407775A (en) | Pressureless consolidation of metallic powders | |
KR100700197B1 (en) | Process for Manufacturing Sintered Materials Containing Cobalt Component | |
GB661780A (en) | Improvements in or relating to moulds | |
US3166833A (en) | Production of heavy metal objects by powder metallurgy | |
GB742963A (en) | Method of forming articles from comminuted material, and articles made therefrom | |
CN115256250B (en) | Diamond ceramic grinding tool for cutting thick bricks and preparation method thereof | |
GB1356445A (en) | Method for pressure sintering a refractory powder | |
WO2001014088A1 (en) | Low pressure injection molding of knife blades from metal feedstocks | |
GB1535798A (en) | Method for the manufacture of articles of complex shape | |
RU2063842C1 (en) | Method of diamond-bearing members production |