Production of spherical bismuth shot
US5540749A · kind A · utility
8Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1994 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Sep 8, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2009/0864
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is provided for producing bismuth and bismuth alloy shot particles by a procedure whereby molten bismuth at a temperature less than about 100.degree. C. above the melting point of the bismuth is used to form drops of molten bismuth which fall through a vessel containing a material more viscous than water with the method having a Reynolds Number less than about 100. Preferred materials are polyethylene glycols having a molecular weight of about 4500 and 8000.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.