GB862571A - Method for making lead shields - Google Patents
Method for making lead shieldsInfo
- Publication number
- GB862571A GB862571A GB680/59A GB68059A GB862571A GB 862571 A GB862571 A GB 862571A GB 680/59 A GB680/59 A GB 680/59A GB 68059 A GB68059 A GB 68059A GB 862571 A GB862571 A GB 862571A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- molten
- layer
- cooling
- container
- 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
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
- B22D25/04—Casting metal electric battery plates or the like
Abstract
862,571. Casting-processes. KNAPP MILLS Inc. Jan. 7, 1959 [May 5, 1958], No. 680/59. Class 83 (1). A method of forming a lead anti-radiation shield of substantially uniform density, comprises forming a layer of molten lead in an enclosure, cooling the layer to solidify it progressively from beneath, determining the condition of the surface of the solidified lead covered by molten lead by probing through the molten lead, and controlling the rate and direction of cooling in accordance with the findings of the probing to maintain a progressively increasing and substantially uniform thickness of solidified lead over the whole area of the layer. Preferably more molten lead is added while the surface of said laver is still molten. The lead may be cast into an enclosure comprising separate side-walls 5-8 on a table 3, and the cooling controlled by means such as burners 18 and air or water blasts 20. In a modification, Fig, 6, a container 40 is lead lined by the use of an inner container 41 which may, or may not, be removed after casting. The inner surface of the container 40 is first cleaned and solder or flux applied.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US862571XA | 1958-05-05 | 1958-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB862571A true GB862571A (en) | 1961-03-15 |
Family
ID=22197321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB680/59A Expired GB862571A (en) | 1958-05-05 | 1959-01-07 | Method for making lead shields |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB862571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755674A (en) * | 2017-11-23 | 2018-03-06 | 山东沃顿核辐射环境安全装备有限公司 | Full-automatic lead screen pouring device and casting method |
-
1959
- 1959-01-07 GB GB680/59A patent/GB862571A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755674A (en) * | 2017-11-23 | 2018-03-06 | 山东沃顿核辐射环境安全装备有限公司 | Full-automatic lead screen pouring device and casting method |
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