Device for the production of lead grid electrodes for lead acid batteries in a continuous casting process
US12076783B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2020 |
| Grant date | Sep 3, 2024 |
| Priority date | — |
| Expiry date | May 12, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A device for casting electrode grids for producing lead acid batteries in a continuous casting process. The device includes a casting wheel and a casting shoe which rests on an outer circumference of the casting wheel. Liquid lead exiting the casting shoe flows into a concave mold of the casting wheel surface and is removable as a solidified lead strip. The casting shoe is made up of two or more zones, at least a first hot zone with a temperature above the melting point of lead and a second, thermally separated zone with a temperature below the melting point of lead. Cooling the lead strip from two sides (the wheel side and the shoe side) avoids columnar crystal formation and increases the casting speed to 40 meter per minute and above. Thermal isolation of the lead feeding tube avoids re-flowing of lead to a lead pot, reducing PbO formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.