GB864196A - Improvements in or relating to lead castings - Google Patents
Improvements in or relating to lead castingsInfo
- Publication number
- GB864196A GB864196A GB333359A GB333359A GB864196A GB 864196 A GB864196 A GB 864196A GB 333359 A GB333359 A GB 333359A GB 333359 A GB333359 A GB 333359A GB 864196 A GB864196 A GB 864196A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- arsenic
- relating
- castings
- addition
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C11/00—Alloys based on lead
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
A method of reducing the shrinkage porosity and improving the surface quality of lead castings, such as used for radiation shield lead bricks, comprises the addition of arsenic (e.g. in form of a master lead-arsenic alloy) to the lead being cast. In the casting, the arsenic may be present in proportions between 0.6% and 1.4% by weight. The addition of 1% arsenic reduces the ductility, but increases the tensile strength and hardness of the lead.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB333359A GB864196A (en) | 1959-01-30 | 1959-01-30 | Improvements in or relating to lead castings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB333359A GB864196A (en) | 1959-01-30 | 1959-01-30 | Improvements in or relating to lead castings |
Publications (1)
Publication Number | Publication Date |
---|---|
GB864196A true GB864196A (en) | 1961-03-29 |
Family
ID=9756333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB333359A Expired GB864196A (en) | 1959-01-30 | 1959-01-30 | Improvements in or relating to lead castings |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB864196A (en) |
-
1959
- 1959-01-30 GB GB333359A patent/GB864196A/en not_active Expired
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