GB672423A - Improvements relating to the manufacture of metal powders, especially those of very fine grain size - Google Patents
Improvements relating to the manufacture of metal powders, especially those of very fine grain sizeInfo
- Publication number
- GB672423A GB672423A GB9658/50A GB965850A GB672423A GB 672423 A GB672423 A GB 672423A GB 9658/50 A GB9658/50 A GB 9658/50A GB 965850 A GB965850 A GB 965850A GB 672423 A GB672423 A GB 672423A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reducing atmosphere
- furnace
- manufacture
- grain size
- especially those
- 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
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
672,423. Extracting metals; iron. tungsten, molvbdenum, cobalt, nickel. METROCUTANIT, Ltd. April 19, 1950 [May 10, 1949], No. 9658/50. Classes 72 and 82(i) [Also in Group XII] Metal powder is produced by a continuous process comprising heating a metallic oxide, salt or other compound in a reducing atmosphere, the material to be reduced being caused to travel through a furnace in a direction opposite to that of a reducing gas such as hydrogen and being supported in its passage through the furnace on a sieve-like surface so arranged that the material is exposed on all sides to the reducing atmosphere. Reduction may be effected in a muffle 1, Fig. 1, through which the material passes on sieve-like insets 3'into boats 2, such insets 3 being arranged singly in the boats or in tiers. Alternatively, a tubular furnace may be employed, Fig. 3, the material being fed through a mesh cylinder 5, or several such cylinders. The reducing atmosphere may consist of hydrogen containing 5-25 per cent of ammonia. Tungsten, molybdenum, iron, cobalt and nickel powders may be so produced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT672423X | 1949-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB672423A true GB672423A (en) | 1952-05-21 |
Family
ID=3678694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9658/50A Expired GB672423A (en) | 1949-05-10 | 1950-04-19 | Improvements relating to the manufacture of metal powders, especially those of very fine grain size |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB672423A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129529A (en) * | 1982-11-04 | 1984-05-16 | Dr Zahra Ibrahim Khatib | Rotary reaction vessel |
| CN104399997A (en) * | 2014-11-26 | 2015-03-11 | 北京矿冶研究总院 | Preparation method of tungsten powder |
| CN107983969A (en) * | 2017-12-29 | 2018-05-04 | 深圳微纳增材技术有限公司 | A kind of device and its application method for continuous reducing metal powder |
| WO2023062128A1 (en) | 2021-10-14 | 2023-04-20 | H.C. Starck Tungsten Gmbh | Device comprising a reaction container for solids reactions |
-
1950
- 1950-04-19 GB GB9658/50A patent/GB672423A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2129529A (en) * | 1982-11-04 | 1984-05-16 | Dr Zahra Ibrahim Khatib | Rotary reaction vessel |
| CN104399997A (en) * | 2014-11-26 | 2015-03-11 | 北京矿冶研究总院 | Preparation method of tungsten powder |
| CN107983969A (en) * | 2017-12-29 | 2018-05-04 | 深圳微纳增材技术有限公司 | A kind of device and its application method for continuous reducing metal powder |
| CN107983969B (en) * | 2017-12-29 | 2024-02-23 | 深圳微纳增材技术有限公司 | Device for continuously reducing metal powder and application method thereof |
| WO2023062128A1 (en) | 2021-10-14 | 2023-04-20 | H.C. Starck Tungsten Gmbh | Device comprising a reaction container for solids reactions |
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