GB812342A - A process for the manufacture of metal powders - Google Patents
A process for the manufacture of metal powdersInfo
- Publication number
- GB812342A GB812342A GB349156A GB349156A GB812342A GB 812342 A GB812342 A GB 812342A GB 349156 A GB349156 A GB 349156A GB 349156 A GB349156 A GB 349156A GB 812342 A GB812342 A GB 812342A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- nozzle
- oxidizing gas
- jet
- gauge
- 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
- 239000002184 metal Substances 0.000 title abstract 5
- 229910052751 metal Inorganic materials 0.000 title abstract 5
- 239000000843 powder Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- 239000007789 gas Substances 0.000 abstract 4
- 230000001590 oxidative Effects 0.000 abstract 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229910000881 Cu alloy Inorganic materials 0.000 abstract 1
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 125000004435 hydrogen atoms Chemical class [H]* 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
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
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
812,342. Granulating metals. BERK & CO. Ltd. Oct. 16, 1956 [Feb. 3, 1956], No. 3491/56. Class 82(2) Metal powders, for example powders of iron, nickel or copper alloys, are made by subjecting a falling stream of the molten metal to the action of an annular jet of water in an atmosphere of a non-oxidizing gas such as nitrogen, hydrogen, argon or cracked ammonia while keeping the jet stable by satisfying its tendency to draw in gas by supplying it with the non-oxidizing gas either from an external source or by a re-circulating pipe. As shown molten metal falls from a hole 4 in the base of tundish 3 when it is acted upon by a conical jet of water from the annular outlet 8 of water nozzle 7. The water level in the bottom of chamber 10 is controlled by overflow valve 15a, and the non- oxidizing gas is supplied at 11 and may be re-circulated to the nozzle 7 by pipe 19 with or without the aid of a pump 20, or the external supply 21 may be used. A manometer 18 indicates the pressure drop across the nozzle (usually 6-9 inches water gauge), and gauge 13 indicates the pressure in the chamber (usually 10-30 inches water gauge above atmospheric). A recirculation rate of 60-80 cubic ft./min. is stated to be satisfactory for a pouring hole of 3/32 in. diameter. Specifications 719,047 and 812,341 are referred to.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB812342A true GB812342A (en) | 1959-04-22 |
Family
ID=1627699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB349156A Expired GB812342A (en) | 1956-02-03 | A process for the manufacture of metal powders |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB812342A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450674C (en) * | 2005-12-12 | 2009-01-14 | 绍兴市吉利来金属材料有限公司 | Method for preparing low apparent density copper powder by reduction of water atomized dry powder |
-
1956
- 1956-02-03 GB GB349156A patent/GB812342A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100450674C (en) * | 2005-12-12 | 2009-01-14 | 绍兴市吉利来金属材料有限公司 | Method for preparing low apparent density copper powder by reduction of water atomized dry powder |
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