GB725995A - An improved mould for and method of making hollow castings - Google Patents
An improved mould for and method of making hollow castingsInfo
- Publication number
- GB725995A GB725995A GB9408/53A GB940853A GB725995A GB 725995 A GB725995 A GB 725995A GB 9408/53 A GB9408/53 A GB 9408/53A GB 940853 A GB940853 A GB 940853A GB 725995 A GB725995 A GB 725995A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- cooling
- mould
- april
- melt
- 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
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
Abstract
725,995. Cores. GUSZSTAHLWERK BOCHUMER VEREIN AKT.-GES. April 7, 1953 [April 7, 1952], No. 9408/53. Class 83 (1). A core for a mould for casting hollow ingots comprises a cylindrical outer wall of sheet metal and interiorly of said wall a helical tubular coil and a filling of freely running fine-grained refractory material, such as sand. The coil may be of metal and electrically energized to cause a slight heating of the melt and induce convection currents and carries a coolant such as compressed air or water or a mixture thereof. To bring about a controlled solidification of the melt from the bottom upwards the coil may be divided into individually controlled sections. Cooling is commenced with compressed air, and changed over gradually to water cooling. The outer mould may be of cast iron, or of a similar construction to the core, comprising a sheetmetal liner with a cooling coil therearound and a filling of silver sand.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE725995X | 1952-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB725995A true GB725995A (en) | 1955-03-16 |
Family
ID=6635108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9408/53A Expired GB725995A (en) | 1952-04-07 | 1953-04-07 | An improved mould for and method of making hollow castings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB725995A (en) |
-
1953
- 1953-04-07 GB GB9408/53A patent/GB725995A/en not_active Expired
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