High fluorine frits for continuous casting of metals
US6171361A · kind A · utility
1Cited by
8References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 1996 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | May 7, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/111
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A glass composition which is lithium-free and which is suitable as a metallurgical mold powder includes, based on total weight of the glass composition: Oxide wt % Na.sub.2 O 0.2-14.4 K.sub.2 O 0.0-2.5 CaO 31.0-41.9 Al.sub.2 O.sub.3 4.9-8.5 B.sub.2 O.sub.3 0.00-1.9 SiO.sub.2 15.6-30.0 F 18.1-30.8 PA1 wherein the glass composition has a total content of Na.sub.2 O+K.sub.2 O+CaO which ranges from about 38.4 to about 52.6% so that the glass composition is lithium-free and suitable as a metallurgical mold powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.