GB591142A - Improvements in and relating to the manufacture of metal articles - Google Patents
Improvements in and relating to the manufacture of metal articlesInfo
- Publication number
- GB591142A GB591142A GB1186444A GB1186444A GB591142A GB 591142 A GB591142 A GB 591142A GB 1186444 A GB1186444 A GB 1186444A GB 1186444 A GB1186444 A GB 1186444A GB 591142 A GB591142 A GB 591142A
- Authority
- GB
- United Kingdom
- Prior art keywords
- charge
- mould
- metal
- heated
- sintering temperature
- 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
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/02—Use of electric or magnetic effects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
In a method of making a metal article, metal in the form of powder, small blocks or strips is packed into a mould formed of a substance which will not mix, coalesce or harmfully affect the charge and then heated in a non-oxidising atmosphere by high frequency induction. The charge may be heated to sintering temperature and then compressed or it may be melted in the mould. For steel, the sintering temperature would be between 860 DEG C. and 960 DEG C. and the preusure from 1 to 1 1/2 tons per square centimetre. The mould may be of a refractory non-metallic material or of a metal having a melting point considerably higher than that of the charge and is preferably lined with sillimanite or zirconia. A layer of diamonds or other abrasive material may be incorporated in the charge within the mould. Reference has been directed by the Comptroller to Specifications 341,649, [Group XXII], 452,411 and 452,503.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB23444/44A GB591412A (en) | 1943-09-08 | 1944-11-24 | Selenium cell and lacquer therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB591142A true GB591142A (en) | 1947-08-08 |
Family
ID=10195734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1186444A Expired GB591142A (en) | 1944-11-24 | 1944-06-22 | Improvements in and relating to the manufacture of metal articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB591142A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737456A (en) * | 1951-02-09 | 1956-03-06 | Allied Prod Corp | Process of making powdered metal articles without briquetting |
-
1944
- 1944-06-22 GB GB1186444A patent/GB591142A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2737456A (en) * | 1951-02-09 | 1956-03-06 | Allied Prod Corp | Process of making powdered metal articles without briquetting |
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