GB544840A - Improvements in or relating to metal powders and methods of making the same - Google Patents
Improvements in or relating to metal powders and methods of making the sameInfo
- Publication number
- GB544840A GB544840A GB9221/41A GB922141A GB544840A GB 544840 A GB544840 A GB 544840A GB 9221/41 A GB9221/41 A GB 9221/41A GB 922141 A GB922141 A GB 922141A GB 544840 A GB544840 A GB 544840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- mixture
- july
- iron
- oxide
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Furnace Details (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Abstract
544,840. Alloys; plastic. compositions. WELLMAN CO., S. K. July 21, 1941,No. 9221 Con- CO., S. K. July 21, 1941,No. 9221. Convention date, July 9, 1940. [Class 82 (i)] [Also in Group V] Metal powder consisting of a mixture of lead with one or more of the medals iron, cobalt, nickel, and manganese, and suitable for use in pressed and sintered form, in some cases in admixture with copper powders, for bearings, clutch facings, brake linings is made by heating a mixture consisting of a minor proportion of oxygen-containing compounds of lead and a major proportion of oxygencontaining compounds of iron &c. preferably oxides or carbonates, in presence of, but segregated from, a carbonaceous reducing agent which may be coal, coke, or preferably charcoal. A suitable mixture may consist of 88 per cent. of iron oxide and 12 per cent. of lead oxide. If silica is desired in the product, lead silicate may be substituted for part of the oxide. In the apparatus shown alternate layers of charcoal and of a mixture such as described above, separated by' sheets of paper are placed in a chamber 14 having a central tube 15 containing a gas outlet pipe 3 and a pyrometer 4. An outer casing 22 is applied to the container and the whole is heated by lowering an annular furnace over it. After the reduction is completed, cooling is effected in a reducing gas supplied through the pipe 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US544840XA | 1940-07-09 | 1940-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB544840A true GB544840A (en) | 1942-04-29 |
Family
ID=21991401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9221/41A Expired GB544840A (en) | 1940-07-09 | 1941-07-21 | Improvements in or relating to metal powders and methods of making the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB544840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682785A (en) * | 2022-04-06 | 2022-07-01 | 郑州大学 | Method for preparing molybdenum powder by carbon non-contact reduction of molybdenum trioxide |
-
1941
- 1941-07-21 GB GB9221/41A patent/GB544840A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682785A (en) * | 2022-04-06 | 2022-07-01 | 郑州大学 | Method for preparing molybdenum powder by carbon non-contact reduction of molybdenum trioxide |
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